This page has only limited features, please log in for full access.
Ceria promoted phosphate-zirconia supported nickel catalyst (10Ni1Ce/PZr; x = 0, 1, 1.5, 2, 2.5, 3, 5 wt%) are prepared and characterized by XRD, SEM, SEM-EDX, CH4-TPSR, NH3-TPD, cyclic H2TPR-CO2TPD-H2TPR, and TPH. Ceria addition induces surface reducibility, exposes reduced phases of NiO and Ni2P2O7 as CH4 decomposition sites, and persuades additional CO2 adsorbed species as formate species over the catalyst surface. It also switches mobile oxygen in the lattice and thereafter oxide vacancy is replenished by oxygen from CO2 to a great extent. Altogether, 1 wt% ceria loading (10Ni1Ce/PZr) ensures more than 90% H2 yield (H2/CO = 0.96) whereas 2 wt% ceria loading inputs constancy in catalytic performance up to 440 min TOS. Up to 3 wt% ceria loading, 97% hydrogen yield (H2/CO ~1) is observed. Catalytic performance deteriorated above that 3 wt% ceria loading due to shading the catalytic active site or reoxidation of metallic nickel by excess ceria.
Jyoti Khatri; Anis Hamza Fakeeha; Samsudeen Olajide Kasim; Mahmud S. Lanre; Ahmed E. Abasaeed; Ahmed Aidid Ibrahim; Rawesh Kumar; Ahmed Sadeq Al‐Fatesh. Ceria promoted phosphate‐zirconia supported Ni catalyst for hydrogen rich syngas production through dry reforming of methane. International Journal of Energy Research 2021, 1 .
AMA StyleJyoti Khatri, Anis Hamza Fakeeha, Samsudeen Olajide Kasim, Mahmud S. Lanre, Ahmed E. Abasaeed, Ahmed Aidid Ibrahim, Rawesh Kumar, Ahmed Sadeq Al‐Fatesh. Ceria promoted phosphate‐zirconia supported Ni catalyst for hydrogen rich syngas production through dry reforming of methane. International Journal of Energy Research. 2021; ():1.
Chicago/Turabian StyleJyoti Khatri; Anis Hamza Fakeeha; Samsudeen Olajide Kasim; Mahmud S. Lanre; Ahmed E. Abasaeed; Ahmed Aidid Ibrahim; Rawesh Kumar; Ahmed Sadeq Al‐Fatesh. 2021. "Ceria promoted phosphate‐zirconia supported Ni catalyst for hydrogen rich syngas production through dry reforming of methane." International Journal of Energy Research , no. : 1.
Dry reforming of methane (DRM) has a substantial potential to provide a cost-effective process and in reducing greenhouse gases. Its application has been hindered by carbon deposition and instability problems. The use of an appropriate catalyst is influenced by the support type. The objective of this investigation is to elucidate the effect of different sources of ZrO2 support. Four kinds of ZrO2, namely RC-100 and Z-3215, MKnano, and ELTN were acquired from Japan, Canada, and China, respectively. The catalyst samples were analyzed by BET, XRD, TPR, TPD, TEM, TGA, TPO, FT-IR, and Raman. The analysis of the structural properties displayed that all Ni-supported catalysts, regardless of their source, are mesoporous and that 5Ni-RC-100 possessed the highest BET surface area of 17.7 m2/g and 5Ni-MKnano had the lowest value of BET 3.16 m2/g. In the TPD and TEM analysis, the 5Ni-RC-100 catalyst presented the highest intensity of basicity and the minimum average particle size of 3.35 nm, respectively. The 5Ni-RC-100 catalyst outperformed 5Ni-ELTN by exhibiting 44% higher CH4 conversion; however, 5Ni-RC-100 gave the highest weight loss in the TGA analysis of 66%.
Ahmed Ibrahim; Anis Fakeeha; Ahmed Abasaeed; Ahmed Al-Fatesh. Dry Reforming of Methane Using Ni Catalyst Supported on ZrO2: The Effect of Different Sources of Zirconia. Catalysts 2021, 11, 827 .
AMA StyleAhmed Ibrahim, Anis Fakeeha, Ahmed Abasaeed, Ahmed Al-Fatesh. Dry Reforming of Methane Using Ni Catalyst Supported on ZrO2: The Effect of Different Sources of Zirconia. Catalysts. 2021; 11 (7):827.
Chicago/Turabian StyleAhmed Ibrahim; Anis Fakeeha; Ahmed Abasaeed; Ahmed Al-Fatesh. 2021. "Dry Reforming of Methane Using Ni Catalyst Supported on ZrO2: The Effect of Different Sources of Zirconia." Catalysts 11, no. 7: 827.
ZrO2 supported Nickel catalyst, 9 wt%WO3 -91 wt%ZrO2 supported Nickel catalyst and ceria promoted 9 wt%WO3-91 wt%ZrO2 supported Nickel catalyst (5NixCe/WZr catalyst) is synthesized via wet impregnation and characterized by XRD, UV–vis, CO2 -TPD, H2 TPR-CO2 TPD-H2 TPR cycle, TPH, TPH followed by O2 -TPO and CO2 -TPD followed by O2 -TPO. Due to limitation in surface re-oxidizing capability and shading of catalytic active sites by thermally stable carbonates; catalytic activity of unpromoted catalyst system is less. 5NixCe/WZr catalyst has extended CH4 decomposition sites, additional basic sites (during the reaction) for CO2 adsorption and excellent redox accompany (Ce +4/Ce +3, W+6/W +4) for carbon oxidation and re-oxidizing capability of surface up to the pristine level. 2.5 wt% Ceria promotional addition is resulted into 78% H2 yield constantly up to 420 min TOS. The carbon deposit over ceria promoted system (up to 2.5 wt%) is amorphous type, more easily/moderately reducible, oxidizable and removable.
Rutu Patel; Ahmed S. Al-Fatesh; Anis H. Fakeeha; Yasir Arafat; Samsudeen O. Kasim; Ahmed A. Ibrahim; Salma A. Al-Zahrani; Ahmed E. Abasaeed; Vijay Kumar Srivastava; Rawesh Kumar. Impact of ceria over WO3–ZrO2 supported Ni catalyst towards hydrogen production through dry reforming of methane. International Journal of Hydrogen Energy 2021, 46, 25015 -25028.
AMA StyleRutu Patel, Ahmed S. Al-Fatesh, Anis H. Fakeeha, Yasir Arafat, Samsudeen O. Kasim, Ahmed A. Ibrahim, Salma A. Al-Zahrani, Ahmed E. Abasaeed, Vijay Kumar Srivastava, Rawesh Kumar. Impact of ceria over WO3–ZrO2 supported Ni catalyst towards hydrogen production through dry reforming of methane. International Journal of Hydrogen Energy. 2021; 46 (49):25015-25028.
Chicago/Turabian StyleRutu Patel; Ahmed S. Al-Fatesh; Anis H. Fakeeha; Yasir Arafat; Samsudeen O. Kasim; Ahmed A. Ibrahim; Salma A. Al-Zahrani; Ahmed E. Abasaeed; Vijay Kumar Srivastava; Rawesh Kumar. 2021. "Impact of ceria over WO3–ZrO2 supported Ni catalyst towards hydrogen production through dry reforming of methane." International Journal of Hydrogen Energy 46, no. 49: 25015-25028.
The present work describes the use of yttria stabilized ZrO2 support. Different loadings (5, 10, 15 and 20 wt%) of yttria were used. The catalysts were tested for CH4 reforming with CO2 at 700 °C. The effect of doping Y2O3 with ZrO2 on the catalytic performance was attained. N2 physisorption (BET), X-ray diffraction (XRD), temperature programmed reduction (TPR), thermogravimetric analysis (TGA), and transmission electron microscopy (TEM) were employed to analyze the used and fresh catalysts. The results showed that Y2O3 stabilized ZrO2 supported catalysts generated the better conversions of CH4 and CO2 than nonstabilized ZrO2 supported catalysts. The mean CH4 conversions found were 54%, 59%, 60%, 66% and 65% respectively for the 5Ni-ZrO2, 5Ni-5Y-ZrO2, 5Ni-10Y-ZrO2, 5Ni-15Y-ZrO2 and 5Ni-20Y-ZrO2. The BET output displayed significant rise in the surface area of the Y2O3 satbilized catalysts. The crystallite size of NiO acquired via XRD measurements exhibited remarkable decrease due to the addition of Y2O3. TGA and TEM of the spent catalysts showed respectively, reduction of carbon formation as a result of Y2O3 addition and formation of multisized nano tubes. The experimentation of the best 5Ni-15Y-ZrO2 for 40 h produced 60% weight loss of mass and the formation of amorphous carbon on the surface via TGA and TPO respectively.
Anis Hamza Fakeeha; Ahmed Sadeq Al-Fatesh; Ahmed Aidid Ibrahim; Ahmed Elhag Abasaeed. CO2 reforming of CH4 over Ni-catalyst supported on yttria stabilized zirconia. Journal of Saudi Chemical Society 2021, 25, 101244 .
AMA StyleAnis Hamza Fakeeha, Ahmed Sadeq Al-Fatesh, Ahmed Aidid Ibrahim, Ahmed Elhag Abasaeed. CO2 reforming of CH4 over Ni-catalyst supported on yttria stabilized zirconia. Journal of Saudi Chemical Society. 2021; 25 (6):101244.
Chicago/Turabian StyleAnis Hamza Fakeeha; Ahmed Sadeq Al-Fatesh; Ahmed Aidid Ibrahim; Ahmed Elhag Abasaeed. 2021. "CO2 reforming of CH4 over Ni-catalyst supported on yttria stabilized zirconia." Journal of Saudi Chemical Society 25, no. 6: 101244.
Development of a transition metal based catalyst aiming at concomitant high activity and stability attributed to distinguished catalytic characteristics is considered as the bottleneck for dry reforming of methane (DRM). This work highlights the role of modifying zirconia (ZrO2) and alumina (Al2O3) supported nickel based catalysts using lanthanum oxide (La2O3) varying from 0 to 20 wt% during dry reforming of methane. The mesoporous catalysts with improved BET surface areas, improved dispersion, relatively lower reduction temperatures and enhanced surface basicity are identified after La2O3 doping. These factors have influenced the catalytic activity and higher hydrogen yields are found for La2O3 modified catalysts as compared to base catalysts (5 wt% Ni-ZrO2 and 5 wt% Ni-Al2O3). Post-reaction characterizations such as TGA have showed less coke formation over La2O3 modified samples. Raman spectra indicates decreased graphitization for La2O3 catalysts. The 5Ni-10La2O3-ZrO2 catalyst produced 80% hydrogen yields, 25% more than that of 5Ni-ZrO2. 5Ni-15La2O3-Al2O3 gave 84% hydrogen yields, 8% higher than that of 5Ni-Al2O3. Higher CO2 activity improved the surface carbon oxidation rate. From the study, the extent of La2O3 loading is dependent on the type of oxide support.
Ahmed Abasaeed; Samsudeen Kasim; Wasim Khan; Mahmud Sofiu; Ahmed Ibrahim; Anis Fakeeha; Ahmed Al-Fatesh. Hydrogen Yield from CO2 Reforming of Methane: Impact of La2O3 Doping on Supported Ni Catalysts. Energies 2021, 14, 2412 .
AMA StyleAhmed Abasaeed, Samsudeen Kasim, Wasim Khan, Mahmud Sofiu, Ahmed Ibrahim, Anis Fakeeha, Ahmed Al-Fatesh. Hydrogen Yield from CO2 Reforming of Methane: Impact of La2O3 Doping on Supported Ni Catalysts. Energies. 2021; 14 (9):2412.
Chicago/Turabian StyleAhmed Abasaeed; Samsudeen Kasim; Wasim Khan; Mahmud Sofiu; Ahmed Ibrahim; Anis Fakeeha; Ahmed Al-Fatesh. 2021. "Hydrogen Yield from CO2 Reforming of Methane: Impact of La2O3 Doping on Supported Ni Catalysts." Energies 14, no. 9: 2412.
H2 production through dry reforming of methane (DRM) is a hot topic amidst growing environmental and atom-economy concerns. Loading Ni-based reducible mixed oxide systems onto a thermally stable support is a reliable approach for obtaining catalysts of good dispersion and high stability. Herein, NiO was dispersed over MOx-modified-γ-Al2O3 (M = Ti, Mo, Si, or W; x = 2 or 3) through incipient wetness impregnation followed by calcination. The obtained catalyst systems were characterized by infrared, ultraviolet–visible, and X-ray photoelectron spectroscopies, and H2 temperature-programmed reduction. The mentioned synthetic procedure afforded the proper nucleation of different NiO-containing mixed oxides and/or interacting-NiO species. With different modifiers, the interaction of NiO with the γ-Al2O3 support was found to change, the Ni2+ environment was reformed exclusively, and the tendency of NiO species to undergo reduction was modified greatly. Catalyst systems 5Ni3MAl (M = Si, W) comprised a variety of species, whereby NiO interacted with the modifier and the support (e.g., NiSiO3, NiAl2O4, and NiWO3). These two catalyst systems displayed equal efficiency, >70% H2 yield at 800 °C, and were thermally stable for up to 420 min on stream. 5Ni3SiAl catalyst regained nearly all its activity during regeneration for up to two cycles.
Ahmed Sadeq Al-Fatesh; Mayankkumar Lakshmanbhai Chaudhary; Anis Hamza Fakeeha; Ahmed Aidid Ibrahim; Fahad Al-Mubaddel; Samsudeen Olajide Kasim; Yousef Abdulrahman Albaqmaa; Abdulaziz A. Bagabas; Rutu Patel; Rawesh Kumar. Role of Mixed Oxides in Hydrogen Production through the Dry Reforming of Methane over Nickel Catalysts Supported on Modified γ-Al2O3. Processes 2021, 9, 157 .
AMA StyleAhmed Sadeq Al-Fatesh, Mayankkumar Lakshmanbhai Chaudhary, Anis Hamza Fakeeha, Ahmed Aidid Ibrahim, Fahad Al-Mubaddel, Samsudeen Olajide Kasim, Yousef Abdulrahman Albaqmaa, Abdulaziz A. Bagabas, Rutu Patel, Rawesh Kumar. Role of Mixed Oxides in Hydrogen Production through the Dry Reforming of Methane over Nickel Catalysts Supported on Modified γ-Al2O3. Processes. 2021; 9 (1):157.
Chicago/Turabian StyleAhmed Sadeq Al-Fatesh; Mayankkumar Lakshmanbhai Chaudhary; Anis Hamza Fakeeha; Ahmed Aidid Ibrahim; Fahad Al-Mubaddel; Samsudeen Olajide Kasim; Yousef Abdulrahman Albaqmaa; Abdulaziz A. Bagabas; Rutu Patel; Rawesh Kumar. 2021. "Role of Mixed Oxides in Hydrogen Production through the Dry Reforming of Methane over Nickel Catalysts Supported on Modified γ-Al2O3." Processes 9, no. 1: 157.
Nickel catalysts supported on zirconium oxide and modified by various amounts of lanthanum with 10, 15, and 20 wt.% were synthesized for CO2 reforming of methane. The effect of La2O3 as a promoter on the stability of the catalyst, the amount of carbon formed, and the ratio of H2 to CO were investigated. In this study, we observed that promoting the catalyst with La2O3 enhanced catalyst activities. The conversions of the feed, i.e., methane and carbon dioxide, were in the order 10La2O3 > 15La2O3 > 20La2O3 > 0La2O3, with the highest conversions being about 60% and 70% for both CH4 and CO2 respectively. Brunauer–Emmett–Teller (BET) analysis showed that the surface area of the catalysts decreased slightly with increasing La2O3 doping. We observed that 10% La2O3 doping had the highest specific surface area (21.6 m2/g) and the least for the un-promoted sample. The higher surface areas of the promoted samples relative to the reference catalyst is an indication of the concentration of the metals at the mouths of the pores of the support. XRD analysis identified the different phases available, which ranged from NiO species to the monoclinic and tetragonal phases of ZrO2. Temperature programmed reduction (TPR) analysis showed that the addition of La2O3 lowered the activation temperature needed for the promoted catalysts. The structural changes in the morphology of the fresh catalyst were revealed by microscopic analysis. The elemental compositions of the catalyst, synthesized through energy dispersive X-ray analysis, were virtually the same as the calculated amount used for the synthesis. The thermogravimetric analysis (TGA) of spent catalysts showed that the La2O3 loading of 10 wt.% contributed to the gasification of carbon deposits and hence gave about 1% weight-loss after a reaction time of 7.5 h at 700 °C.
Mahmud S. Lanre; Ahmed S. Al-Fatesh; Anis H. Fakeeha; Samsudeen O. Kasim; Ahmed A. Ibrahim; Abdulrahman S. Al-Awadi; Attiyah A. Al-Zahrani; Ahmed E. Abasaeed. Catalytic Performance of Lanthanum Promoted Ni/ZrO2 for Carbon Dioxide Reforming of Methane. Processes 2020, 8, 1502 .
AMA StyleMahmud S. Lanre, Ahmed S. Al-Fatesh, Anis H. Fakeeha, Samsudeen O. Kasim, Ahmed A. Ibrahim, Abdulrahman S. Al-Awadi, Attiyah A. Al-Zahrani, Ahmed E. Abasaeed. Catalytic Performance of Lanthanum Promoted Ni/ZrO2 for Carbon Dioxide Reforming of Methane. Processes. 2020; 8 (11):1502.
Chicago/Turabian StyleMahmud S. Lanre; Ahmed S. Al-Fatesh; Anis H. Fakeeha; Samsudeen O. Kasim; Ahmed A. Ibrahim; Abdulrahman S. Al-Awadi; Attiyah A. Al-Zahrani; Ahmed E. Abasaeed. 2020. "Catalytic Performance of Lanthanum Promoted Ni/ZrO2 for Carbon Dioxide Reforming of Methane." Processes 8, no. 11: 1502.
Catalysts of 10% Ni, supported on promoted alumina, were used to accomplish the partial oxidation of methane. The alumina support was doped with oxides of Mo, Mg, Ti and Y. An incipient wetness impregnation technique was used to synthesize the catalysts. The physicochemical properties of the catalysts were described by XRD, H2-TPR (temperature programmed reduction), BET, TGA, CO2-TPD (temperature-programmed desorption) and Raman. The characterization results denoted that Ni has a strong interaction with the support. The TGA investigation of spent catalysts displayed the anticoking enhancement of the promoters. The impact of the support promoters on the catalyst stability, methane conversion and H2 yield was inspected. Stability tests were done for 460 min. The H2 yields were 76 and 60% and the CH4 conversions were 67 and 92%, respectively, over Ni/Al2O3+Mg, when the reaction temperatures were 550 and 650 °C, respectively. The performance of the present work was compared to relevant findings in the literature.
Ahmed A. Ibrahim; Wasim U. Khan; Fahad Al-Mubaddel; Ahmed S. Al-Fatesh; Samsudeen O. Kasim; Sofiu L. Mahmud; Ateyah A. Al-Zahrani; M. Rafiq H. Siddiqui; Anis H. Fakeeha. Study of Partial Oxidation of Methane by Ni/Al2O3 Catalyst: Effect of Support Oxides of Mg, Mo, Ti and Y as Promoters. Molecules 2020, 25, 5029 .
AMA StyleAhmed A. Ibrahim, Wasim U. Khan, Fahad Al-Mubaddel, Ahmed S. Al-Fatesh, Samsudeen O. Kasim, Sofiu L. Mahmud, Ateyah A. Al-Zahrani, M. Rafiq H. Siddiqui, Anis H. Fakeeha. Study of Partial Oxidation of Methane by Ni/Al2O3 Catalyst: Effect of Support Oxides of Mg, Mo, Ti and Y as Promoters. Molecules. 2020; 25 (21):5029.
Chicago/Turabian StyleAhmed A. Ibrahim; Wasim U. Khan; Fahad Al-Mubaddel; Ahmed S. Al-Fatesh; Samsudeen O. Kasim; Sofiu L. Mahmud; Ateyah A. Al-Zahrani; M. Rafiq H. Siddiqui; Anis H. Fakeeha. 2020. "Study of Partial Oxidation of Methane by Ni/Al2O3 Catalyst: Effect of Support Oxides of Mg, Mo, Ti and Y as Promoters." Molecules 25, no. 21: 5029.
An environmentally-benign way of producing hydrogen is methane decomposition. This study focused on methane decomposition using Fe and Fe-Ni catalysts, which were dispersed over different supports by the wet-impregnation method. We observed the effect of modifying ZrO2 with La2O3 and WO3 in terms of H2 yield and carbon deposits. The modification led to a higher H2 yield in all cases and WO3-modified support gave the highest yield of about 90% and was stable throughout the reaction period. The reaction conditions were at 1 atm, 800 °C, and 4000 mL(hgcat)−1 space velocity. Adding Ni to Fe/x-ZrO2 gave a higher H2 yield and stability for ZrO2 and La2O3 + ZrO2-supported catalysts whose prior performances and stabilities were very poor. Catalyst samples were analyzed by characterization techniques like X-ray diffraction (XRD), nitrogen physisorption, temperature-programmed reduction (TPR), thermo-gravimetric analysis (TGA), and Raman spectroscopy. The phases of iron and the supports were identified using XRD while the BET revealed a significant decrease in the specific surface areas of fresh catalysts relative to supports. A progressive change in Fe’s oxidation state from Fe3+ to Fe0 was observed from the H2-TPR results. The carbon deposits on Fe/ZrO2 and Fe/La2O3 + ZrO2 are mainly amorphous, while Fe/WO3 + ZrO2 and Fe-Ni/x-ZrO2 are characterized by graphitic carbon.
Fahad Al-Mubaddel; Samsudeen Kasim; Ahmed A. Ibrahim; Abdulrhman S. Al-Awadi; Anis H. Fakeeha; Ahmed S. Al-Fatesh. H2 Production from Catalytic Methane Decomposition Using Fe/x-ZrO2 and Fe-Ni/(x-ZrO2) (x = 0, La2O3, WO3) Catalysts. Catalysts 2020, 10, 793 .
AMA StyleFahad Al-Mubaddel, Samsudeen Kasim, Ahmed A. Ibrahim, Abdulrhman S. Al-Awadi, Anis H. Fakeeha, Ahmed S. Al-Fatesh. H2 Production from Catalytic Methane Decomposition Using Fe/x-ZrO2 and Fe-Ni/(x-ZrO2) (x = 0, La2O3, WO3) Catalysts. Catalysts. 2020; 10 (7):793.
Chicago/Turabian StyleFahad Al-Mubaddel; Samsudeen Kasim; Ahmed A. Ibrahim; Abdulrhman S. Al-Awadi; Anis H. Fakeeha; Ahmed S. Al-Fatesh. 2020. "H2 Production from Catalytic Methane Decomposition Using Fe/x-ZrO2 and Fe-Ni/(x-ZrO2) (x = 0, La2O3, WO3) Catalysts." Catalysts 10, no. 7: 793.
Dry reforming of CH4 was conducted over promoted Ni catalysts, supported on mesoporous gamma-alumina. The Ni catalysts were promoted by various metal oxides (CuO, ZnO, Ga2O3, or Gd2O3) and were synthesized by the incipient wetness impregnation method. The influence of the promoters on the catalyst stability, coke deposition, and H2/CO mole ratio was investigated. Stability tests were carried out for 460 min. The H2 yield was 87% over 5Ni+1Gd/Al, while the CH4 and CO2 conversions were found to decrease in the following order: 5Ni+1Gd/Al > 5Ni+1Ga/Al > 5Ni+1Zn/Al > 5Ni/Al > 5Ni+1Cu/Al. The high catalytic performance of 5Ni+1Gd/Al, 5Ni+1Ga/Al, and 5Ni+1Zn/Al was found to be closely related to their contents of NiO species, which interacted moderately and strongly with the support, whereas free NiO in 5Ni+1Cu/Al made it catalytically inactive, even than 5Ni/Al. The 5Ni+1Gd/Al catalyst showed the highest CH4 conversion of 83% with H2/CO mole ratio of ~1.0.
Anis H. Fakeeha; Abdulaziz A. Bagabas; Mahmud S. Lanre; Ahmed Osman; Samsudeen O. Kasim; Ahmed A. Ibrahim; Rasheed Arasheed; Abdulmajeed Alkhalifa; Ahmed Y. Elnour; Ahmed E. Abasaeed; Ahmed S. Al-Fatesh. Catalytic Performance of Metal Oxides Promoted Nickel Catalysts Supported on Mesoporous γ-Alumina in Dry Reforming of Methane. Processes 2020, 8, 522 .
AMA StyleAnis H. Fakeeha, Abdulaziz A. Bagabas, Mahmud S. Lanre, Ahmed Osman, Samsudeen O. Kasim, Ahmed A. Ibrahim, Rasheed Arasheed, Abdulmajeed Alkhalifa, Ahmed Y. Elnour, Ahmed E. Abasaeed, Ahmed S. Al-Fatesh. Catalytic Performance of Metal Oxides Promoted Nickel Catalysts Supported on Mesoporous γ-Alumina in Dry Reforming of Methane. Processes. 2020; 8 (5):522.
Chicago/Turabian StyleAnis H. Fakeeha; Abdulaziz A. Bagabas; Mahmud S. Lanre; Ahmed Osman; Samsudeen O. Kasim; Ahmed A. Ibrahim; Rasheed Arasheed; Abdulmajeed Alkhalifa; Ahmed Y. Elnour; Ahmed E. Abasaeed; Ahmed S. Al-Fatesh. 2020. "Catalytic Performance of Metal Oxides Promoted Nickel Catalysts Supported on Mesoporous γ-Alumina in Dry Reforming of Methane." Processes 8, no. 5: 522.
The catalytic activity of the partial oxidation reforming reaction for hydrogen production over 10% Ni supported on high and low surface area alumina and zirconia was investigated. The reforming reactions, under atmospheric pressure, were performed with a feed molar ratio of CH4/O2 = 2.0. The reaction temperature was set to 450–650 °C. The catalytic activity, stability, and carbon formation were determined via TGA, TPO, Raman, and H2 yield. The catalysts were calcined at 600 and 800 °C. The catalysts were prepared via the wet-impregnation method. Various characterizations were conducted using BET, XRD, TPR, TGA, TPD, TPO, and Raman. The highest methane conversion (90%) and hydrogen yield (72%) were obtained at a 650 °C reaction temperature using Ni-Al-H-600, which also showed the highest stability for the ranges of the reaction temperatures investigated. Indeed, the time-on-stream for 7 h of the Ni-Al-H-600 catalyst displayed high activity and a stable profile when the reaction temperature was set to 650 °C.
Anis Fakeeha; Ahmed A. Ibrahim; Hesham Aljuraywi; Yazeed Alqahtani; Ahmad Alkhodair; Suliman Alswaidan; Ahmed E. Abasaeed; Samsudeen O. Kasim; Sofiu Mahmud; Ahmed S. Al-Fatesh. Hydrogen Production by Partial Oxidation Reforming of Methane over Ni Catalysts Supported on High and Low Surface Area Alumina and Zirconia. Processes 2020, 8, 499 .
AMA StyleAnis Fakeeha, Ahmed A. Ibrahim, Hesham Aljuraywi, Yazeed Alqahtani, Ahmad Alkhodair, Suliman Alswaidan, Ahmed E. Abasaeed, Samsudeen O. Kasim, Sofiu Mahmud, Ahmed S. Al-Fatesh. Hydrogen Production by Partial Oxidation Reforming of Methane over Ni Catalysts Supported on High and Low Surface Area Alumina and Zirconia. Processes. 2020; 8 (5):499.
Chicago/Turabian StyleAnis Fakeeha; Ahmed A. Ibrahim; Hesham Aljuraywi; Yazeed Alqahtani; Ahmad Alkhodair; Suliman Alswaidan; Ahmed E. Abasaeed; Samsudeen O. Kasim; Sofiu Mahmud; Ahmed S. Al-Fatesh. 2020. "Hydrogen Production by Partial Oxidation Reforming of Methane over Ni Catalysts Supported on High and Low Surface Area Alumina and Zirconia." Processes 8, no. 5: 499.
In this paper, a comprehensive study was carried out on the application of perovskite catalyst in dry reforming of CH4. The perovskite catalyst was prepared using a sol–gel method. The prepared samples were characterized by N2 adsorption/desorption, TPR, XRD, CO2-TPD, TGA, TPO, Raman, and SEM techniques. In addition, the effect of operating pressure, namely, 1 bar, 3 bar, 5 bar, and 7 bar, temperature (500–800 °C) was evaluated. The characterization results indicated that catalysts operated at 1 bar, gas hourly space velocity of 84000 (mL/g/h) gave the best catalytic performance. CH4 and CO2 conversions of 77 and 80% were obtained at 1 bar and at 700 °C reaction temperature. The increase of reaction temperatures from 500 °C to 800 °C increased the reaction rate and hence the methane and carbon dioxide conversions were increased. A unity ratio of H2/CO was obtained at 1 bar for temperatures 600 °C and above. Similarly, the time on stream tests, obtained at a 700 °C reaction temperature, showed that the best ratio in terms of the closeness of unity and the stable profile could be attained when the pressure was set to 1 bar. The TGA analysis showed the drop of mass due to oxidation of carbon deposits, which started at 500 °C. The catalyst operated at 1 bar produced the least amount of carbon, equivalent to 35% weight loss, while the 3 and 5 bar operated catalysts generated carbon formation, equivalent to 65% weight loss. However, the 7 bar operated catalyst resulted the highest accumulation of carbon formation, equivalent to 83% weight reduction. Hence, the TGA profile indicated the relative carbon deposition on the catalyst, which was dependent of the operated pressure and hence confirmed the suitability operation pressure of 1 bar. The characterizations of the Raman, EDX, TGA, and TPO all presented the formation of carbon.
Anis Hamza Fakeeha; Ahmed Sadeq Al-Fatesh; Jehad K. Abu-Dahrieh; Ahmed Aidid Ibrahim; Samsudeen Olajide Kasim; Ahmed Elhag Abasaeed. Effect of Pressure on Na0.5La0.5Ni0.3Al0.7O2.5 Perovskite Catalyst for Dry Reforming of CH4. Catalysts 2020, 10, 379 .
AMA StyleAnis Hamza Fakeeha, Ahmed Sadeq Al-Fatesh, Jehad K. Abu-Dahrieh, Ahmed Aidid Ibrahim, Samsudeen Olajide Kasim, Ahmed Elhag Abasaeed. Effect of Pressure on Na0.5La0.5Ni0.3Al0.7O2.5 Perovskite Catalyst for Dry Reforming of CH4. Catalysts. 2020; 10 (4):379.
Chicago/Turabian StyleAnis Hamza Fakeeha; Ahmed Sadeq Al-Fatesh; Jehad K. Abu-Dahrieh; Ahmed Aidid Ibrahim; Samsudeen Olajide Kasim; Ahmed Elhag Abasaeed. 2020. "Effect of Pressure on Na0.5La0.5Ni0.3Al0.7O2.5 Perovskite Catalyst for Dry Reforming of CH4." Catalysts 10, no. 4: 379.
Dry reforming of methane (DRM) was studied in the light of Ni supported on 8%PO4 + ZrO2 catalysts. Cerium was used to modify the Ni active metal. Different percentage loadings of Ce (1%, 1.5%, 2%, 2.5%, 3%, and 5%) were tested. The wet incipient impregnation method was used for the preparation of all catalysts. The catalysts were activated at 700 °C for ½ h. The reactions were performed at 800 °C using a gas hourly space velocity of 28,000 mL (h·gcat)−1. X-ray diffraction (XRD), N2 physisorption, hydrogen temperature programmed reduction (H2-TPR), temperature programmed oxidation (TPO), temperature programmed desorption (TPD), and thermogravimetric analysis (TGA) were used for characterizing the catalysts. The TGA analysis depicted minor amounts of carbon deposition. The CO2-TPD results showed that Ce enhanced the basicity of the catalysts. The 3% Ce loading possessed the highest surface area, the largest pore volume, and the greatest pore diameter. All the promoted catalysts enhanced the conversions of CH4 and CO2. Among the promoted catalysts tested, the 10Ni + 3%Ce/8%PO4 + ZrO2 catalyst system operated at 1 bar and at 800 °C gave the highest conversions of CH4 (95%) and CO2 (96%). The stability profile of Cerium-modified catalysts (10%Ni/8%PO4 + ZrO2) depicted steady CH4 and CO2 conversions during the 7.5 h time on stream.
Ahmed A. Ibrahim; Ahmed S. Al-Fatesh; Nadavala Siva Kumar; Ahmed E. Abasaeed; Samsudeen O. Kasim; Anis H. Fakeeha. Dry Reforming of Methane Using Ce-modified Ni Supported on 8%PO4 + ZrO2 Catalysts. Catalysts 2020, 10, 242 .
AMA StyleAhmed A. Ibrahim, Ahmed S. Al-Fatesh, Nadavala Siva Kumar, Ahmed E. Abasaeed, Samsudeen O. Kasim, Anis H. Fakeeha. Dry Reforming of Methane Using Ce-modified Ni Supported on 8%PO4 + ZrO2 Catalysts. Catalysts. 2020; 10 (2):242.
Chicago/Turabian StyleAhmed A. Ibrahim; Ahmed S. Al-Fatesh; Nadavala Siva Kumar; Ahmed E. Abasaeed; Samsudeen O. Kasim; Anis H. Fakeeha. 2020. "Dry Reforming of Methane Using Ce-modified Ni Supported on 8%PO4 + ZrO2 Catalysts." Catalysts 10, no. 2: 242.
A promising method to reduce global warming has been methane reforming with CO2, as it combines two greenhouse gases to obtain useful products. In this study, Ni-supported catalysts were synthesized using the wet impregnation method to obtain 5%Ni/Al2O3(SA-5239), 5%Ni/Al2O3(SA-6175), 5%Ni/SiO2, 5%Ni/MCM41, and 5%Ni/SBA15. The catalysts were tested in dry reforming of methane at 700 °C, 1 atm, and a space velocity of 39,000 mL/gcat h, to study the interaction of Ni with the supports, and evaluation was based on CH4 and CO2 conversions. 5%Ni/Al2O3(SA-6175) and 5%Ni/SiO2 gave the highest conversion of CH4 (78 and 75%, respectively) and CO2 (84 and 82%, respectively). The catalysts were characterized by some techniques. Ni phases were identified by X-ray diffraction patterns. Brunauer–Emmett–Teller analysis showed different surface areas of the catalysts with the least being 4 m2/g and the highest 668 m2/g belonging to 5%Ni/Al2O3(SA-5239) and 5%Ni/SBA15, respectively. The reduction profiles revealed weak NiO-supports interaction for 5%Ni/Al2O3(SA-5239), 5%Ni/MCM41, and 5%Ni/SBA15; while strong interaction was observed in 5%Ni/Al2O3(SA-6175) and 5%Ni/SiO2. The 5%Ni/Al2O3(SA-6175) and 5%Ni/SiO2 were close with respect to performance; however, the former had a higher amount of carbon deposit, which is mostly graphitic, according to the conducted thermal analysis. Carbon deposits on 5%Ni/SiO2 were mainly atomic in nature.
Anis Hamza Fakeeha; Samsudeen Olajide Kasim; Ahmed Aidid Ibrahim; Ahmed Elhag Abasaeed; Ahmed Sadeq Al-Fatesh. Influence of Nature Support on Methane and CO2 Conversion in a Dry Reforming Reaction over Nickel-Supported Catalysts. Materials 2019, 12, 1777 .
AMA StyleAnis Hamza Fakeeha, Samsudeen Olajide Kasim, Ahmed Aidid Ibrahim, Ahmed Elhag Abasaeed, Ahmed Sadeq Al-Fatesh. Influence of Nature Support on Methane and CO2 Conversion in a Dry Reforming Reaction over Nickel-Supported Catalysts. Materials. 2019; 12 (11):1777.
Chicago/Turabian StyleAnis Hamza Fakeeha; Samsudeen Olajide Kasim; Ahmed Aidid Ibrahim; Ahmed Elhag Abasaeed; Ahmed Sadeq Al-Fatesh. 2019. "Influence of Nature Support on Methane and CO2 Conversion in a Dry Reforming Reaction over Nickel-Supported Catalysts." Materials 12, no. 11: 1777.
Ni supported on bare and modified ZrO2 samples were synthesized using the incipient wet impregnation method. The t-ZrO2 phase was stabilized by incorporation of La2O3 into ZrO2. Moreover, the influence of CeO2-doping on the physico-chemical and catalytic properties under CO2 reforming conditions was probed. The characterization data of the investigated catalysts were obtained by using XRD, CO2/H2-TPD, BET, TPR, TPO, TGA, XPS and TEM characterization techniques. In the pristine Ni/Zr catalyst, the t-ZrO2 phase transformed into the monoclinic phase. However, upon support modification by La2O3, significant effects on the physicochemical properties were observed due to the monoclinic-to-tetragonal ZrO2 phase transformation also affecting the catalytic activity. As a result, superior activity on the La2O3 modified Ni/Zr catalyst was achieved, while no relevant change in the surface properties and activity of the catalysts was detected after doping by CeO2. The peculiar behavior of the Ni/La-ZrO2 sample was related to higher dispersion of the active phase, with a more pronounced stabilization of the t-ZrO2 phase.
Ahmed Sadeq Al-Fatesh; Yasir Arafat; Ahmed Aidid Ibrahim; Samsudeen Olajide Kasim; Abdulrahman Alharthi; Anis Hamza Fakeeha; Ahmed Elhag Abasaeed; Giuseppe Bonura; Francesco Frusteri. Catalytic Behaviour of Ce-Doped Ni Systems Supported on Stabilized Zirconia under Dry Reforming Conditions. Catalysts 2019, 9, 473 .
AMA StyleAhmed Sadeq Al-Fatesh, Yasir Arafat, Ahmed Aidid Ibrahim, Samsudeen Olajide Kasim, Abdulrahman Alharthi, Anis Hamza Fakeeha, Ahmed Elhag Abasaeed, Giuseppe Bonura, Francesco Frusteri. Catalytic Behaviour of Ce-Doped Ni Systems Supported on Stabilized Zirconia under Dry Reforming Conditions. Catalysts. 2019; 9 (5):473.
Chicago/Turabian StyleAhmed Sadeq Al-Fatesh; Yasir Arafat; Ahmed Aidid Ibrahim; Samsudeen Olajide Kasim; Abdulrahman Alharthi; Anis Hamza Fakeeha; Ahmed Elhag Abasaeed; Giuseppe Bonura; Francesco Frusteri. 2019. "Catalytic Behaviour of Ce-Doped Ni Systems Supported on Stabilized Zirconia under Dry Reforming Conditions." Catalysts 9, no. 5: 473.
Ni, Co, and Co–Ni bimetallic catalysts supported over SBA-15 and over SBA-15 doped with Zn or Ce oxides were prepared and tested in a methane dry reforming reaction. The loading of the metals in the catalyst was 5 wt % for either mono or bimetallic catalysts. The prepared catalysts were tested in a continuous-flow fixed-bed reactor at 800 °C under atmospheric pressure. XRD, TPR, TPD, and SEM characterization techniques were employed to investigate the catalytic properties of fresh catalysts. SEM and TGA were used to study the catalytic properties of spent catalysts. A remarkable effect on the reduction properties and catalytic performance of catalysts was observed after adding Zn and Ce. Over an 8 h test, Ni/SBA-15 showed the best activity and stability. The conversion was 90% for CH4 and CO2. Co–Ni/SBA-15 and Co–Ni/Ce–SBA-15 have shown a reasonable activity and stability. Selectivity of the Ni/SBA-15 catalyst was higher than all other catalysts as indicated by the H2/CO ratio. Co/SBA-15 and Co–Ni/Zn–SBA-15 showed a low activity and selectivity. TPD–NH3 profiles indicated that doping SBA-15 with Ce and/or Zn increased the catalyst acidic sites. Ni/SBA-15 is an excellent potential catalyst for commercial methane dry reforming processes.
Ahmed A. Ibrahim; Ashraf Amin; Ahmed S. Al-Fatesh; Nadavala Siva Kumar; Samsudeen Olajide Kasim; Abdulrhman S. Al-Awadi; Ahmed M. El-Toni; Ahmed Elhag Abasaeed; Anis H. Fakeeha. Nanosized Ni/SBA-15 Catalysts for CO2 Reforming of CH4. Applied Sciences 2019, 9, 1926 .
AMA StyleAhmed A. Ibrahim, Ashraf Amin, Ahmed S. Al-Fatesh, Nadavala Siva Kumar, Samsudeen Olajide Kasim, Abdulrhman S. Al-Awadi, Ahmed M. El-Toni, Ahmed Elhag Abasaeed, Anis H. Fakeeha. Nanosized Ni/SBA-15 Catalysts for CO2 Reforming of CH4. Applied Sciences. 2019; 9 (9):1926.
Chicago/Turabian StyleAhmed A. Ibrahim; Ashraf Amin; Ahmed S. Al-Fatesh; Nadavala Siva Kumar; Samsudeen Olajide Kasim; Abdulrhman S. Al-Awadi; Ahmed M. El-Toni; Ahmed Elhag Abasaeed; Anis H. Fakeeha. 2019. "Nanosized Ni/SBA-15 Catalysts for CO2 Reforming of CH4." Applied Sciences 9, no. 9: 1926.
In this study, Ni, Co and Ni–Co catalysts supported on binary oxide ZrO2–Al2O3 were synthesized by sol-gel method and characterized by means of various analytical techniques such as XRD, BET, TPR, TPD, TGA, SEM, and TEM. This catalytic system was then tested for syngas respective H2 production via partial oxidation of methane at 700 °C and 800 °C. The influence of calcination temperatures was studied and their impact on catalytic activity and stability was evaluated. It was observed that increasing the calcination temperature from 550 °C to 800 °C and addition of ZrO2 to Al2O3 enhances Ni metal-support interaction. This increases the catalytic activity and sintering resistance. Furthermore, ZrO2 provides higher oxygen storage capacity and stronger Lewis basicity which contributed to coke suppression, eventually leading to a more stable catalyst. It was also observed that, contrary to bimetallic catalysts, monometallic catalysts exhibit higher activity with higher calcination temperature. At the same time, Co and Ni–Co-based catalysts exhibit higher activity than Ni-based catalysts which was not expected. The Co-based catalyst calcined at 800 °C demonstrated excellent stability over 24 h on stream. In general, all catalysts demonstrated high CH4 conversion and exceptionally high selectivity to H2 (~98%) at 700 °C.
Anis Hamza Fakeeha; Yasir Arafat; Ahmed Aidid Ibrahim; Hamid Shaikh; Hanan Atia; Ahmed Elhag Abasaeed; Udo Armbruster; Ahmed Sadeq Al-Fatesh. Highly Selective Syngas/H2 Production via Partial Oxidation of CH4 Using (Ni, Co and Ni–Co)/ZrO2–Al2O3 Catalysts: Influence of Calcination Temperature. Processes 2019, 7, 141 .
AMA StyleAnis Hamza Fakeeha, Yasir Arafat, Ahmed Aidid Ibrahim, Hamid Shaikh, Hanan Atia, Ahmed Elhag Abasaeed, Udo Armbruster, Ahmed Sadeq Al-Fatesh. Highly Selective Syngas/H2 Production via Partial Oxidation of CH4 Using (Ni, Co and Ni–Co)/ZrO2–Al2O3 Catalysts: Influence of Calcination Temperature. Processes. 2019; 7 (3):141.
Chicago/Turabian StyleAnis Hamza Fakeeha; Yasir Arafat; Ahmed Aidid Ibrahim; Hamid Shaikh; Hanan Atia; Ahmed Elhag Abasaeed; Udo Armbruster; Ahmed Sadeq Al-Fatesh. 2019. "Highly Selective Syngas/H2 Production via Partial Oxidation of CH4 Using (Ni, Co and Ni–Co)/ZrO2–Al2O3 Catalysts: Influence of Calcination Temperature." Processes 7, no. 3: 141.
This study investigated dry reforming of methane (DRM) over combined catalysts supported on γ-Al2O3 support doped with 3.0 wt. % TiO2. Physicochemical properties of all catalysts were determined by inductively coupled plasma/mass spectrometry (ICP-MS), nitrogen physisorption, X-ray diffraction, temperature programmed reduction/oxidation/desorption/pulse hydrogen chemisorption, thermogravimetric analysis, and scanning electron microscopy. Addition of CeO2 and MgO to Ni strengthened the interaction between the Ni and the support. The catalytic activity results indicate that the addition of CeO2 and MgO to Ni did not reduce carbon deposition, but improved the activity of the catalysts. Temperature programmed oxidation (TPO) revealed the formation of carbon that is mainly amorphous and small amount of graphite. The highest CH4 and CO2 conversion was found for the catalyst composed of 5.0 wt. % NiO-10.0 wt. % CeO2/3.0 wt. %TiO2-γ-Al2O3 (Ti-CAT-II), resulting in H2/CO mole ratio close to unity. The optimum reaction conditions in terms of reactant conversion and H2/CO mole ratio were achieved by varying space velocity and CO2/CH4 mole ratio.
Ahmed Sadeq Al-Fatesh; Samsudeen Olajide Kasim; Ahmed Aidid Ibrahim; Anis Hamza Fakeeha; Ahmed Elhag Abasaeed; Rasheed Alrasheed; Rawan Ashamari; Abdulaziz Bagabas. Combined Magnesia, Ceria and Nickel catalyst supported over γ-Alumina Doped with Titania for Dry Reforming of Methane. Catalysts 2019, 9, 188 .
AMA StyleAhmed Sadeq Al-Fatesh, Samsudeen Olajide Kasim, Ahmed Aidid Ibrahim, Anis Hamza Fakeeha, Ahmed Elhag Abasaeed, Rasheed Alrasheed, Rawan Ashamari, Abdulaziz Bagabas. Combined Magnesia, Ceria and Nickel catalyst supported over γ-Alumina Doped with Titania for Dry Reforming of Methane. Catalysts. 2019; 9 (2):188.
Chicago/Turabian StyleAhmed Sadeq Al-Fatesh; Samsudeen Olajide Kasim; Ahmed Aidid Ibrahim; Anis Hamza Fakeeha; Ahmed Elhag Abasaeed; Rasheed Alrasheed; Rawan Ashamari; Abdulaziz Bagabas. 2019. "Combined Magnesia, Ceria and Nickel catalyst supported over γ-Alumina Doped with Titania for Dry Reforming of Methane." Catalysts 9, no. 2: 188.
Ahmed S. Al-Fatesh; Ahmed A. Ibrahim; Abdulaziz M. AlSharekh; Fawaz S. Alqahtani; Samsudeen Kasim; Anis H. Fakeeha. Iron catalyst for decomposition of methane: Influence of Al/Si ratio support. Egyptian Journal of Petroleum 2018, 27, 1221 -1225.
AMA StyleAhmed S. Al-Fatesh, Ahmed A. Ibrahim, Abdulaziz M. AlSharekh, Fawaz S. Alqahtani, Samsudeen Kasim, Anis H. Fakeeha. Iron catalyst for decomposition of methane: Influence of Al/Si ratio support. Egyptian Journal of Petroleum. 2018; 27 (4):1221-1225.
Chicago/Turabian StyleAhmed S. Al-Fatesh; Ahmed A. Ibrahim; Abdulaziz M. AlSharekh; Fawaz S. Alqahtani; Samsudeen Kasim; Anis H. Fakeeha. 2018. "Iron catalyst for decomposition of methane: Influence of Al/Si ratio support." Egyptian Journal of Petroleum 27, no. 4: 1221-1225.
A novel approach to the in situ regeneration of a spent alumina-supported cobalt–iron catalyst for catalytic methane decomposition is reported in this work. The spent catalyst was obtained after testing fresh catalyst in catalytic methane decomposition reaction during 90 min. The regeneration evaluated the effect of forced periodic cycling; the cycles of regeneration were performed in situ at 700 °C under diluted O2 gasifying agent (10% O2/N2), followed by inert treatment under N2. The obtained regenerated catalysts at different cycles were tested again in catalytic methane decomposition reaction. Fresh, spent, and spent/regenerated materials were characterized using X-ray powder diffraction (XRD), transmission electron microscopy (TEM), laser Raman spectroscopy (LRS), N2-physisorption, H2-temperature programmed reduction (H2-TPR), thermogravimetric analysis (TGA), and atomic absorption spectroscopy (AAS). The comparison of transmission electron microscope and X-ray powder diffraction characterizations of spent and spent/regenerated catalysts showed the formation of a significant amount of carbon on the surface with a densification of catalyst particles after each catalytic methane decomposition reaction preceded by regeneration. The activity results confirm that the methane decomposition after regeneration cycles leads to a permanent deactivation of catalysts certainly provoked by the coke deposition. Indeed, it is likely that some active iron sites cannot be regenerated totally despite the forced periodic cycling.
Anis H. Fakeeha; Siham Barama; Ahmed A. Ibrahim; Raja-Lafi Al-Otaibi; Akila Barama; Ahmed E. Abasaeed; Ahmed S. Al-Fatesh. In Situ Regeneration of Alumina-Supported Cobalt–Iron Catalysts for Hydrogen Production by Catalytic Methane Decomposition. Catalysts 2018, 8, 567 .
AMA StyleAnis H. Fakeeha, Siham Barama, Ahmed A. Ibrahim, Raja-Lafi Al-Otaibi, Akila Barama, Ahmed E. Abasaeed, Ahmed S. Al-Fatesh. In Situ Regeneration of Alumina-Supported Cobalt–Iron Catalysts for Hydrogen Production by Catalytic Methane Decomposition. Catalysts. 2018; 8 (11):567.
Chicago/Turabian StyleAnis H. Fakeeha; Siham Barama; Ahmed A. Ibrahim; Raja-Lafi Al-Otaibi; Akila Barama; Ahmed E. Abasaeed; Ahmed S. Al-Fatesh. 2018. "In Situ Regeneration of Alumina-Supported Cobalt–Iron Catalysts for Hydrogen Production by Catalytic Methane Decomposition." Catalysts 8, no. 11: 567.