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Ammar Bin Yousaf
Centre for Advanced Materials, Qatar University, Doha 2713, Qatar

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Journal article
Published: 30 April 2021 in Coatings
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This work intended to enhance the unique and outstanding properties of lanthanum by synthesizing its nanocomposite. A lanthanum-based nanocomposite was prepared by a simple and cost-effective “co-precipitation” method. Lanthanum nitrate (La (NO3)3) and zinc nitrate (Zn (NO3)2) were used as precursors. The lanthanum/zinc oxide nano composite formed was then calcined at 450 °C for 4 h in order to obtain a fine powder with size in the nano range of 1–100 nm. Characterization of the prepared catalyst was done by ultraviolet/visible spectroscopy, Fourier transform infrared spectroscopy, and photoluminescence. Crystallinity and morphology were found by X-ray diffraction and scanning electron microscopy. The synthesized nanocomposite material was also tested for heterogeneous catalytic applications of 4-nitrophenol (4-NP) reduction into 4-aminophenol (4-AP). It was found to be successful in complete reduction of 4-NP with enhanced catalytic performance.

ACS Style

Ikram Ahmad; Muhammad Jamal; Miara Iftikhar; Awais Ahmad; Shahid Hussain; Humaira Asghar; Muhammad Saeed; Ammar Yousaf; Rama Karri; Nada Al-Kadhi; Mohamed Ouladsmane; Ayman Ghfar; Safia Khan. Lanthanum-Zinc Binary Oxide Nanocomposite with Promising Heterogeneous Catalysis Performance for the Active Conversion of 4-Nitrophenol into 4-Aminophenol. Coatings 2021, 11, 537 .

AMA Style

Ikram Ahmad, Muhammad Jamal, Miara Iftikhar, Awais Ahmad, Shahid Hussain, Humaira Asghar, Muhammad Saeed, Ammar Yousaf, Rama Karri, Nada Al-Kadhi, Mohamed Ouladsmane, Ayman Ghfar, Safia Khan. Lanthanum-Zinc Binary Oxide Nanocomposite with Promising Heterogeneous Catalysis Performance for the Active Conversion of 4-Nitrophenol into 4-Aminophenol. Coatings. 2021; 11 (5):537.

Chicago/Turabian Style

Ikram Ahmad; Muhammad Jamal; Miara Iftikhar; Awais Ahmad; Shahid Hussain; Humaira Asghar; Muhammad Saeed; Ammar Yousaf; Rama Karri; Nada Al-Kadhi; Mohamed Ouladsmane; Ayman Ghfar; Safia Khan. 2021. "Lanthanum-Zinc Binary Oxide Nanocomposite with Promising Heterogeneous Catalysis Performance for the Active Conversion of 4-Nitrophenol into 4-Aminophenol." Coatings 11, no. 5: 537.

Paper
Published: 27 July 2020 in Sustainable Energy & Fuels
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The economical cost of the catalyst material has remained a challenging task in traditional fuel cells (FCs) and in direct methanol fuel cells (DMFCs).

ACS Style

Ammar Bin Yousaf; John R. Monnier; John W. Weidner; Mohammad K. Hassan; Syed Javaid Zaidi; Peter Kasak. A precious-metal-free Fe-intercalated carbon nitride porous-network with enhanced activity for the oxygen reduction reaction and methanol-tolerant oxygen reduction reaction. Sustainable Energy & Fuels 2020, 4, 1 .

AMA Style

Ammar Bin Yousaf, John R. Monnier, John W. Weidner, Mohammad K. Hassan, Syed Javaid Zaidi, Peter Kasak. A precious-metal-free Fe-intercalated carbon nitride porous-network with enhanced activity for the oxygen reduction reaction and methanol-tolerant oxygen reduction reaction. Sustainable Energy & Fuels. 2020; 4 (10):1.

Chicago/Turabian Style

Ammar Bin Yousaf; John R. Monnier; John W. Weidner; Mohammad K. Hassan; Syed Javaid Zaidi; Peter Kasak. 2020. "A precious-metal-free Fe-intercalated carbon nitride porous-network with enhanced activity for the oxygen reduction reaction and methanol-tolerant oxygen reduction reaction." Sustainable Energy & Fuels 4, no. 10: 1.

Journal article
Published: 21 October 2019 in Scientific Reports
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We introduce a simple approach to fabricate fluorescent multivalent metal ion-free alginate hydrogels, which can be produced using carbon dots accessible from natural sources (citric acid and L-cysteine). Molecular fluorophore 5-oxo-2,3-dihydro-5H-[1,3]-thiazolo[3,2-a] pyridine-3,7-dicarboxylic acid (TPDCA), which is formed during the synthesis of carbon dots, is identified as a key segment for the crosslinking of hydrogels. The crosslinking happens through dynamic complexation of carboxylic acid groups of TPDCA and alginate cages along with sodium ions. The TPDCA derived hydrogels are investigated regarding to their thermal, rheological and optical properties, and found to exhibit characteristic fluorescence of this aggregated molecular fluorophore. Moreover, gradient hydrogels with tunable mechanical and optical properties and controlled release are obtained upon immersion of the hydrogel reactors in solutions of divalent metal ions (Ca2+, Cu2+, and Ni2+) with a higher affinity to alginate.

ACS Style

Peter Kasak; Martin Danko; Sifani Zavahir; Miroslav Mrlik; Yuan Xiong; Ammar Bin Yousaf; Wing-Fu Lai; Igor Krupa; Jan Tkac; Andrey L. Rogach. Identification of Molecular Fluorophore as a Component of Carbon Dots able to Induce Gelation in a Fluorescent Multivalent-Metal-Ion-Free Alginate Hydrogel. Scientific Reports 2019, 9, 1 -11.

AMA Style

Peter Kasak, Martin Danko, Sifani Zavahir, Miroslav Mrlik, Yuan Xiong, Ammar Bin Yousaf, Wing-Fu Lai, Igor Krupa, Jan Tkac, Andrey L. Rogach. Identification of Molecular Fluorophore as a Component of Carbon Dots able to Induce Gelation in a Fluorescent Multivalent-Metal-Ion-Free Alginate Hydrogel. Scientific Reports. 2019; 9 (1):1-11.

Chicago/Turabian Style

Peter Kasak; Martin Danko; Sifani Zavahir; Miroslav Mrlik; Yuan Xiong; Ammar Bin Yousaf; Wing-Fu Lai; Igor Krupa; Jan Tkac; Andrey L. Rogach. 2019. "Identification of Molecular Fluorophore as a Component of Carbon Dots able to Induce Gelation in a Fluorescent Multivalent-Metal-Ion-Free Alginate Hydrogel." Scientific Reports 9, no. 1: 1-11.

Journal article
Published: 01 September 2019 in Journal of Electroanalytical Chemistry
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ACS Style

Ammar Bin Yousaf; Rashid Khan; Akif Zeb; Syed Javaid Zaidi; Peter Kasak. Binary cobalt-iron oxides magnetic nanocomposites embedded porous carbon lawn with inherent N doping as promising electrode material for supercapacitors and Li-ion batteries. Journal of Electroanalytical Chemistry 2019, 848, 1 .

AMA Style

Ammar Bin Yousaf, Rashid Khan, Akif Zeb, Syed Javaid Zaidi, Peter Kasak. Binary cobalt-iron oxides magnetic nanocomposites embedded porous carbon lawn with inherent N doping as promising electrode material for supercapacitors and Li-ion batteries. Journal of Electroanalytical Chemistry. 2019; 848 ():1.

Chicago/Turabian Style

Ammar Bin Yousaf; Rashid Khan; Akif Zeb; Syed Javaid Zaidi; Peter Kasak. 2019. "Binary cobalt-iron oxides magnetic nanocomposites embedded porous carbon lawn with inherent N doping as promising electrode material for supercapacitors and Li-ion batteries." Journal of Electroanalytical Chemistry 848, no. : 1.

Journal article
Published: 20 November 2018 in Journal of Electroanalytical Chemistry
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The developing human societies are being faced provoking energy crises due to higher demands of energy for increasing worldwide populations. The massive depletion of natural resources and global warming issues sound a laud alarm for modern societies. Methanol is attracting huge attractions as an alternative fuel in direct methanol fuel cells for the development of future energy conversion resources, while the fast chemisorptions of methanol and stable performance remained a challenge thereby hampering their scalable applications at commercial level. Herein, we focused on these goals by alteration in chemistry of materials being used as anode catalysts for direct methanol fuel cells. The promising PtPd alloy nanoparticles with tailored compositions are loaded on highly conductive rGO-CNTs support material. The highly active components of the metals and powerful electron transfer material as a support, these combined characteristics in one nanostructure facilitate the fast chemisorptions of methanol with durable performance. The ex-situ electrochemical and in-situ online differential electrochemical mass spectrometric analysis reveal the enhanced electrocatalytic methanol oxidation reaction activities attribute towards direct chemisorptions intermediate pathways introduced via geometric and structural factor within nanocomposite material.

ACS Style

Ammar Bin Yousaf; M. Imran; Syed Javaid Zaidi; Peter Kasak. Engineering and understanding of synergistic effects in the interfaces of rGO-CNTs/PtPd nanocomposite revealed fast electro-oxidation of methanol. Journal of Electroanalytical Chemistry 2018, 832, 343 -352.

AMA Style

Ammar Bin Yousaf, M. Imran, Syed Javaid Zaidi, Peter Kasak. Engineering and understanding of synergistic effects in the interfaces of rGO-CNTs/PtPd nanocomposite revealed fast electro-oxidation of methanol. Journal of Electroanalytical Chemistry. 2018; 832 ():343-352.

Chicago/Turabian Style

Ammar Bin Yousaf; M. Imran; Syed Javaid Zaidi; Peter Kasak. 2018. "Engineering and understanding of synergistic effects in the interfaces of rGO-CNTs/PtPd nanocomposite revealed fast electro-oxidation of methanol." Journal of Electroanalytical Chemistry 832, no. : 343-352.

Research article
Published: 22 August 2018 in Langmuir
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A procedure for the preparation of copolymers bearing sulfobetaine and carboxybetaine methacrylic-based monomers by free-radical polymerisation is described and discussed. A combination of monomers affects the upper critical solution temperature (UCST) in water and in the presence of a simple NaCl electrolyte while retaining the zwitterionic character. In addition, hydrogel samples were prepared and showed tuneable water structure and mechanical properties. The total non-freezable water content decreases with the amount of carboxybetaine segment in the hydrogel feed and the compression moduli were in a range of 0.7-1.6 MPa. Responses to external conditions such as temperature and ion strength were investigated and a potential application such as modulated thermal detection is proposed. The presence of the carboxylate group in the carboxybetaine segment enables a small fluorescence probe and peptide bearing RDG motif to be attached to polymer and hydrogel samples, respectively. The hydrogel samples functionalized with the RGD motif exhibit controlled cell adhesion. Such synthetic strategy based on combination of different zwitterionic segments offers a simple pathway for the development of zwitterionic materials with programmable properties.

ACS Style

Martin Danko; Zuzana Kronekova; Miroslav Mrlik; Josef Osicka; Ammar Bin Yousaf; Andrea Mihálová; Jan Tkac; Peter Kasak; Andrea Durackova. Sulfobetaines Meet Carboxybetaines: Modulation of Thermo- and Ion-Responsivity, Water Structure, Mechanical Properties, and Cell Adhesion. Langmuir 2018, 35, 1391 -1403.

AMA Style

Martin Danko, Zuzana Kronekova, Miroslav Mrlik, Josef Osicka, Ammar Bin Yousaf, Andrea Mihálová, Jan Tkac, Peter Kasak, Andrea Durackova. Sulfobetaines Meet Carboxybetaines: Modulation of Thermo- and Ion-Responsivity, Water Structure, Mechanical Properties, and Cell Adhesion. Langmuir. 2018; 35 (5):1391-1403.

Chicago/Turabian Style

Martin Danko; Zuzana Kronekova; Miroslav Mrlik; Josef Osicka; Ammar Bin Yousaf; Andrea Mihálová; Jan Tkac; Peter Kasak; Andrea Durackova. 2018. "Sulfobetaines Meet Carboxybetaines: Modulation of Thermo- and Ion-Responsivity, Water Structure, Mechanical Properties, and Cell Adhesion." Langmuir 35, no. 5: 1391-1403.

Journal article
Published: 26 July 2018 in MRS Communications
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The selectivity of catalyst is an essential factor in direct methanol fuel cells (DMFCs) and plays an important role to improve their performance. To this end, platinum (Pt)-based low-cost trimetallic catalysts have been developed. The catalyst comprising ultra-low Pt-decorated NiCu bimetallic alloys nanoparticles fabricated on reduced graphene oxide (rGO). The series of Pt-NiCu/rGO nanocomposites were synthesized with different compositions to obtain the optimal conditioned material. The electrochemical results showed good performance for the electro-oxidation of methanol at anodic end of DMFCs. These outcomes opened up a broad avenue for developing lower cost-active catalysts with better performance for DMFCs.

ACS Style

Ammar Bin Yousaf; Sajeda Adnan Mutlaq Alsaydeh; Fathima Sifani Zavahir; Peter Kasak; Syed Javaid Zaidi. Ultra-low Pt-decorated NiCu bimetallic alloys nanoparticles supported on reduced graphene oxide for electro-oxidation of methanol. MRS Communications 2018, 8, 1050 -1057.

AMA Style

Ammar Bin Yousaf, Sajeda Adnan Mutlaq Alsaydeh, Fathima Sifani Zavahir, Peter Kasak, Syed Javaid Zaidi. Ultra-low Pt-decorated NiCu bimetallic alloys nanoparticles supported on reduced graphene oxide for electro-oxidation of methanol. MRS Communications. 2018; 8 (3):1050-1057.

Chicago/Turabian Style

Ammar Bin Yousaf; Sajeda Adnan Mutlaq Alsaydeh; Fathima Sifani Zavahir; Peter Kasak; Syed Javaid Zaidi. 2018. "Ultra-low Pt-decorated NiCu bimetallic alloys nanoparticles supported on reduced graphene oxide for electro-oxidation of methanol." MRS Communications 8, no. 3: 1050-1057.

Journal article
Published: 28 May 2018 in Journal of Electroanalytical Chemistry
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Direct methanol fuel cells (DMFCs) proved to be an auspicious choice in the applications of portable power electronics and energy transportation, apart from their high cost catalysts materials. To this end, we have developed precious metal free low-cost active anode materials for DMFCs. Three metals composite (Ni, Cu, and Mo) based electrocatalyst on a multi-walled carbon nanotubes (MWCNTs) support were prepared. The sequential wetness impregnation at different temperatures method combined with a freeze-drying procedure was used to dope the metals nanoparticles on the carbon nanotube. Their compositions and textures were characterized using powder X-ray diffraction (XRD), scanning electron microscopy (SEM) coupled with energy dispersive X-ray (EDX) detector, elemental mapping, transmission electron microscopy (TEM), high resolution TEM and inductively coupled plasma-mass spectroscopy (ICP-MS). The electrochemical behavior of the prepared electrocatalysts for methanol oxidation was investigated in alkaline media. Cyclic voltammetry (CV) measurements indicate that the catalyst containing 80% of Ni, 10% of Cu and 10% of Mo shows a better electrocatalytic activity than those of other composites in present work. Also the incorporated co-catalysts (Mo and Cu) contribute significantly to the electrocatalytic activity along with Ni via NiCu and NiMo interfaces. The effect of scan rate and methanol concentration was also studied to evaluate the adsorption and oxidation of methanol molecules on the surface of catalyst. The chronoamperometry (CA) was used to evaluate the stability and durability of the as-synthesized Ni/Cu/[email protected] catalyst.

ACS Style

Mazen Nazal; Olanrewaju Suleiman Olakunle; Amir Al-Ahmed; Belabbes Merzougui; Abdullah Abualkibash; Abdullah Sultan; Ammar Bin Yousaf; Syed Javaid Zaidi. Precious metal free Ni/Cu/Mo trimetallic nanocomposite supported on multi-walled carbon nanotubes as highly efficient and durable anode-catalyst for alkaline direct methanol fuel cells. Journal of Electroanalytical Chemistry 2018, 823, 98 -105.

AMA Style

Mazen Nazal, Olanrewaju Suleiman Olakunle, Amir Al-Ahmed, Belabbes Merzougui, Abdullah Abualkibash, Abdullah Sultan, Ammar Bin Yousaf, Syed Javaid Zaidi. Precious metal free Ni/Cu/Mo trimetallic nanocomposite supported on multi-walled carbon nanotubes as highly efficient and durable anode-catalyst for alkaline direct methanol fuel cells. Journal of Electroanalytical Chemistry. 2018; 823 ():98-105.

Chicago/Turabian Style

Mazen Nazal; Olanrewaju Suleiman Olakunle; Amir Al-Ahmed; Belabbes Merzougui; Abdullah Abualkibash; Abdullah Sultan; Ammar Bin Yousaf; Syed Javaid Zaidi. 2018. "Precious metal free Ni/Cu/Mo trimetallic nanocomposite supported on multi-walled carbon nanotubes as highly efficient and durable anode-catalyst for alkaline direct methanol fuel cells." Journal of Electroanalytical Chemistry 823, no. : 98-105.

Journal article
Published: 12 March 2018 in Scientific Reports
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Hydrogenation and cross-coupling reactions are of great importance for industrial applications and noble metal based catalysts are filling the void since the last few decades. However, the high cost of noble metals and poor recycling performance provides an opportunity for chemists to look for alternate options. Herein, we present the use of Lanthanum hydroxide as support for loading ultra-low amount of Pd for hydrogenation and cross-coupling reactions. Lanthanum hydroxide having controlled morphologies comprises exposed crystallographic facets which interact with small sized Pd NPs and shows versatile and effective catalytic performance. The reduction of 4-NP over Pd/La(OH)3 was achieved within very short time (45s) with a rate constant of 60 × 10−3 s−1. The hydrogenation of styrene was also accomplished within 1 hour with much high TOF value (3260 h−1). Moreover, the Suzuki cross-couplings of iodobenzene and phenyl boronic acid into biphenyl completed within 35 min with a TOF value of 389 h−1. The strong interfacial electronic communication regulates electron density of catalytic sites and lowers energy for adsorption of reactant and subsequently conversion into products. Moreover, abundant hydroxyl groups on the surface of La(OH)3, large surface area, mono-dispersity and ultra-small size of Pd NPs also favors the efficient conversion of reactants.

ACS Style

Ammar Bin Yousaf; Muhammad Imran; Muhammad Farooq; Peter Kasak. Interfacial Phenomenon and Nanostructural Enhancements in Palladium Loaded Lanthanum Hydroxide Nanorods for Heterogeneous Catalytic Applications. Scientific Reports 2018, 8, 4354 .

AMA Style

Ammar Bin Yousaf, Muhammad Imran, Muhammad Farooq, Peter Kasak. Interfacial Phenomenon and Nanostructural Enhancements in Palladium Loaded Lanthanum Hydroxide Nanorods for Heterogeneous Catalytic Applications. Scientific Reports. 2018; 8 (1):4354.

Chicago/Turabian Style

Ammar Bin Yousaf; Muhammad Imran; Muhammad Farooq; Peter Kasak. 2018. "Interfacial Phenomenon and Nanostructural Enhancements in Palladium Loaded Lanthanum Hydroxide Nanorods for Heterogeneous Catalytic Applications." Scientific Reports 8, no. 1: 4354.

Journal article
Published: 17 January 2018 in RSC Advances
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A noble-metal-free Co–Ni/MoS2 nanocomposite was synthesized, which showed enhanced electrocatalytic hydrogen evolution performance.

ACS Style

Ammar Bin Yousaf; Muhammad Imran; Muhammad Farooq; Peter Kasak. Synergistic effect of Co–Ni co-bridging with MoS2 nanosheets for enhanced electrocatalytic hydrogen evolution reactions. RSC Advances 2018, 8, 3374 -3380.

AMA Style

Ammar Bin Yousaf, Muhammad Imran, Muhammad Farooq, Peter Kasak. Synergistic effect of Co–Ni co-bridging with MoS2 nanosheets for enhanced electrocatalytic hydrogen evolution reactions. RSC Advances. 2018; 8 (7):3374-3380.

Chicago/Turabian Style

Ammar Bin Yousaf; Muhammad Imran; Muhammad Farooq; Peter Kasak. 2018. "Synergistic effect of Co–Ni co-bridging with MoS2 nanosheets for enhanced electrocatalytic hydrogen evolution reactions." RSC Advances 8, no. 7: 3374-3380.

Journal article
Published: 01 January 2018 in Desalination and Water Treatment
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ACS Style

Muhammad Arslan; Suryyia Manzoor; Tariq Mahmood Ansari; Ahmad Yar; Saima Naz; Ammar Bin Yousaf; Ghazala Yasmin. Peach resin coated silica particles for Imidacloprid removal as a greener approach to water remediation. Desalination and Water Treatment 2018, 109, 169 -175.

AMA Style

Muhammad Arslan, Suryyia Manzoor, Tariq Mahmood Ansari, Ahmad Yar, Saima Naz, Ammar Bin Yousaf, Ghazala Yasmin. Peach resin coated silica particles for Imidacloprid removal as a greener approach to water remediation. Desalination and Water Treatment. 2018; 109 ():169-175.

Chicago/Turabian Style

Muhammad Arslan; Suryyia Manzoor; Tariq Mahmood Ansari; Ahmad Yar; Saima Naz; Ammar Bin Yousaf; Ghazala Yasmin. 2018. "Peach resin coated silica particles for Imidacloprid removal as a greener approach to water remediation." Desalination and Water Treatment 109, no. : 169-175.

Journal article
Published: 01 September 2017 in Journal of Electroanalytical Chemistry
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ACS Style

Ammar Bin Yousaf; Rashid Khan; M. Imran; Muhammad Fasehullah; Akif Zeb; Syed Javaid Zaidi; Peter Kasak. Carbon nitride embedded MnO2 nanospheres decorated with low-content Pt nanoparticles as highly efficient and durable electrode material for solid state supercapacitors. Journal of Electroanalytical Chemistry 2017, 801, 84 -91.

AMA Style

Ammar Bin Yousaf, Rashid Khan, M. Imran, Muhammad Fasehullah, Akif Zeb, Syed Javaid Zaidi, Peter Kasak. Carbon nitride embedded MnO2 nanospheres decorated with low-content Pt nanoparticles as highly efficient and durable electrode material for solid state supercapacitors. Journal of Electroanalytical Chemistry. 2017; 801 ():84-91.

Chicago/Turabian Style

Ammar Bin Yousaf; Rashid Khan; M. Imran; Muhammad Fasehullah; Akif Zeb; Syed Javaid Zaidi; Peter Kasak. 2017. "Carbon nitride embedded MnO2 nanospheres decorated with low-content Pt nanoparticles as highly efficient and durable electrode material for solid state supercapacitors." Journal of Electroanalytical Chemistry 801, no. : 84-91.

Journal article
Published: 26 July 2017 in Scientific Reports
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The demand for clean renewable energy is increasing due to depleting fossil fuels and environmental concerns. Photocatalytic hydrogen production through water splitting is one such promising route to meet global energy demands with carbon free technology. Alternative photocatalysts avoiding noble metals are highly demanded. Herein, we fabricated heterostructure consist of oxygen-deficient WO3–x nanorods with Zn0.3Cd0.7S nanoparticles for an efficient Z-Scheme photocatalytic system. Our as obtained heterostructure showed photocatalytic H2 evolution rate of 352.1 μmol h−1 with apparent quantum efficiency (AQY) of 7.3% at λ = 420 nm. The photocatalytic hydrogen production reaches up to 1746.8 μmol after 5 hours process in repeatable manner. The UV-Visible diffuse reflectance spectra show strong absorption in the visible region which greatly favors the photocatalytic performance. Moreover, the efficient charge separation suggested by electrochemical impedance spectroscopy and photocurrent response curves exhibit enhancement in H2 evolution rate. The strong interface contact between WO3–x nanorods and Zn0.3Cd0.7S nanoparticles ascertained from HRTEM images also play an important role for the emigration of electron. Our findings provide possibilities for the design and development of new Z-scheme photocatalysts for highly efficient hydrogen production.

ACS Style

Ammar Bin Yousaf; M. Imran; Syed Javaid Zaidi; Peter Kasak. Highly Efficient Photocatalytic Z-Scheme Hydrogen Production over Oxygen-Deficient WO3–x Nanorods supported Zn0.3Cd0.7S Heterostructure. Scientific Reports 2017, 7, 1 -10.

AMA Style

Ammar Bin Yousaf, M. Imran, Syed Javaid Zaidi, Peter Kasak. Highly Efficient Photocatalytic Z-Scheme Hydrogen Production over Oxygen-Deficient WO3–x Nanorods supported Zn0.3Cd0.7S Heterostructure. Scientific Reports. 2017; 7 (1):1-10.

Chicago/Turabian Style

Ammar Bin Yousaf; M. Imran; Syed Javaid Zaidi; Peter Kasak. 2017. "Highly Efficient Photocatalytic Z-Scheme Hydrogen Production over Oxygen-Deficient WO3–x Nanorods supported Zn0.3Cd0.7S Heterostructure." Scientific Reports 7, no. 1: 1-10.

Journal article
Published: 05 July 2017 in Catalysis Science & Technology
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Enhanced and durable electrocatalytic performance of thin layer PtRu bimetallic alloys on Pd-nanocubes for methanol oxidation reactions.

ACS Style

Ammar Bin Yousaf; M. Imran; Peter Kasak; Fathima Sifani Zavahir; Syed Javaid Zaidi; Carlos Fernandez. Enhanced and durable electrocatalytic performance of thin layer PtRu bimetallic alloys on Pd-nanocubes for methanol oxidation reactions. Catalysis Science & Technology 2017, 7, 3283 -3290.

AMA Style

Ammar Bin Yousaf, M. Imran, Peter Kasak, Fathima Sifani Zavahir, Syed Javaid Zaidi, Carlos Fernandez. Enhanced and durable electrocatalytic performance of thin layer PtRu bimetallic alloys on Pd-nanocubes for methanol oxidation reactions. Catalysis Science & Technology. 2017; 7 (15):3283-3290.

Chicago/Turabian Style

Ammar Bin Yousaf; M. Imran; Peter Kasak; Fathima Sifani Zavahir; Syed Javaid Zaidi; Carlos Fernandez. 2017. "Enhanced and durable electrocatalytic performance of thin layer PtRu bimetallic alloys on Pd-nanocubes for methanol oxidation reactions." Catalysis Science & Technology 7, no. 15: 3283-3290.

Journal article
Published: 01 July 2017 in Electrochimica Acta
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ACS Style

M. Chitra Devi; L. Rajendran; Ammar Bin Yousaf; C. Fernandez. Non-linear Differential Equations and Rotating Disc Electrodes: Padé approximationTechnique. Electrochimica Acta 2017, 243, 1 -6.

AMA Style

M. Chitra Devi, L. Rajendran, Ammar Bin Yousaf, C. Fernandez. Non-linear Differential Equations and Rotating Disc Electrodes: Padé approximationTechnique. Electrochimica Acta. 2017; 243 ():1-6.

Chicago/Turabian Style

M. Chitra Devi; L. Rajendran; Ammar Bin Yousaf; C. Fernandez. 2017. "Non-linear Differential Equations and Rotating Disc Electrodes: Padé approximationTechnique." Electrochimica Acta 243, no. : 1-6.

Journal article
Published: 01 June 2017 in Journal of Electroanalytical Chemistry
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ACS Style

Syed Javaid Zaidi; Mukhtar Bello; Amir Al-Ahmed; Ammar Bin Yousaf; M. Imran. Mesoporous carbon supported Pt/MO2 (M = Ce, Pr, Nd, Sm) heteronanostructure: Promising non-Ru methanol oxidation reaction catalysts for direct methanol fuel cell application. Journal of Electroanalytical Chemistry 2017, 794, 86 -92.

AMA Style

Syed Javaid Zaidi, Mukhtar Bello, Amir Al-Ahmed, Ammar Bin Yousaf, M. Imran. Mesoporous carbon supported Pt/MO2 (M = Ce, Pr, Nd, Sm) heteronanostructure: Promising non-Ru methanol oxidation reaction catalysts for direct methanol fuel cell application. Journal of Electroanalytical Chemistry. 2017; 794 ():86-92.

Chicago/Turabian Style

Syed Javaid Zaidi; Mukhtar Bello; Amir Al-Ahmed; Ammar Bin Yousaf; M. Imran. 2017. "Mesoporous carbon supported Pt/MO2 (M = Ce, Pr, Nd, Sm) heteronanostructure: Promising non-Ru methanol oxidation reaction catalysts for direct methanol fuel cell application." Journal of Electroanalytical Chemistry 794, no. : 86-92.

Journals
Published: 17 May 2017 in Journal of Materials Chemistry A
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Hetero-nanostructures have proven to be impressive materials due to their multi-functionalities in various catalytic applications.

ACS Style

Ammar Bin Yousaf; M. Imran; Syed Javaid Zaidi; Peter Kasak; Dr Tariq Mahmood Ansari; Suryyia Manzoor; Ghazala Yasmeen. Synergistic effect of interfacial phenomenon on enhancing catalytic performance of Pd loaded MnOx–CeO2–C hetero-nanostructure for hydrogenation and electrochemical reactions. Journal of Materials Chemistry A 2017, 5, 10704 -10712.

AMA Style

Ammar Bin Yousaf, M. Imran, Syed Javaid Zaidi, Peter Kasak, Dr Tariq Mahmood Ansari, Suryyia Manzoor, Ghazala Yasmeen. Synergistic effect of interfacial phenomenon on enhancing catalytic performance of Pd loaded MnOx–CeO2–C hetero-nanostructure for hydrogenation and electrochemical reactions. Journal of Materials Chemistry A. 2017; 5 (21):10704-10712.

Chicago/Turabian Style

Ammar Bin Yousaf; M. Imran; Syed Javaid Zaidi; Peter Kasak; Dr Tariq Mahmood Ansari; Suryyia Manzoor; Ghazala Yasmeen. 2017. "Synergistic effect of interfacial phenomenon on enhancing catalytic performance of Pd loaded MnOx–CeO2–C hetero-nanostructure for hydrogenation and electrochemical reactions." Journal of Materials Chemistry A 5, no. 21: 10704-10712.

Journal article
Published: 12 April 2017 in Journal of The Electrochemical Society
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In this work ternary methanol electro-oxidation catalysts based on mesoporous carbon (MC) were prepared by a novel approach for direct methanol fuel cell applications. Platinum (Pt), ruthenium (Ru) along with oxides of iron, cobalt and nickel were used as the active component in the electrocatalyst. A novel approach was used to prepare Pt-Ru/Fe2O3-MC, Pt-Ru/CoO-MC and Pt-Ru/NiO-MC methanol electro-oxidation catalysts by synthesizing high surface area Fe2O3-MC, CoO-MC and NiO-MC and then followed by impregnation with Pt-Ru. The synthesized metal oxides and catalysts were characterized using FESEM, BET surface area, FT-IR and XRD. The prepared Fe2O3-MC, CoO-MC and NiO-MC showed large pore volume of 0.72–1.46 cm3/g and high surface area of 686–1589 m2/g, which enabled high dispersion of the Pt-Ru nanoparticles. These catalysts have been tested for methanol electro-oxidation activity by electrochemical techniques. The highest catalyst activity of 12.36 mA/mg has been found for the Pt-Ru/NiO-MC, which is higher than the commercial Pt-Ru/C (E-TEK) catalyst. The measured catalytic activity decreased in the order: Pt-Ru/NiO-MC > Pt-Ru/CoO-MC > Pt-Ru/Fe2O3-MC > Pt-Ru/C (E-TEK). In addition, Moreover, these prepared catalyst samples also showed good stability, Moreover, these catalysts are fairly stable, which is similar to the commercial catalyst.

ACS Style

Ammar Bin Yousaf; B. Mukhtar; Amir Al-Ahmed; Syed Javaid Zaidi. Method to Prepare Ternary Methanol Electro-Oxidation Catalysts for Direct Methanol Fuel Cell Applications. Journal of The Electrochemical Society 2017, 164, F667 -F673.

AMA Style

Ammar Bin Yousaf, B. Mukhtar, Amir Al-Ahmed, Syed Javaid Zaidi. Method to Prepare Ternary Methanol Electro-Oxidation Catalysts for Direct Methanol Fuel Cell Applications. Journal of The Electrochemical Society. 2017; 164 (6):F667-F673.

Chicago/Turabian Style

Ammar Bin Yousaf; B. Mukhtar; Amir Al-Ahmed; Syed Javaid Zaidi. 2017. "Method to Prepare Ternary Methanol Electro-Oxidation Catalysts for Direct Methanol Fuel Cell Applications." Journal of The Electrochemical Society 164, no. 6: F667-F673.

Journal article
Published: 01 March 2017 in International Journal of Hydrogen Energy
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Hydrogen has attracted huge interest globally as a durable, environmentally safe and renewable fuel. Electrocatalytic hydrogen evolution reaction (HER) is one of the most promising methods for large scale hydrogen production, but the high cost of Pt-based materials which exhibit the highest activity for HER forced researchers to find alternative electro-catalyst. In this study, we report noble metal free a 3D hybrid composite of tungsten-molybdenum oxide and reduced graphene oxide (GO) prepared by a simple one step hydrothermal method for HER. Benefitting from the synergistic effect between tungsten-molybdenum oxide nanowires and reduced graphene oxide, the obtained W-Mo-O/rGO nanocomposite showed excellent electro-catalytic activity for HER with onset potential 50 mV, a Tafel slope of 46 mV decade−1 and a large cathodic current, while the tungsten-molybdenum oxide nanowires itself is not as efficient HER catalyst. Additionally, W-Mo-O/rGO composite also demonstrated good durability up to 2000 cycles in acidic medium. The enhanced and durable hydrogen evolution reaction activity stemmed from the synergistic effect broadens noble metal free catalysts for HER and provides an insight into the design and synthesis of low-cost and environment friendly catalysts in electrochemical hydrogen production.CAS-TWAS President Fellowship programmes, USTC ; Anhui Government Scholarship programmes

ACS Style

M. Imran; Ammar Bin Yousaf; Syed Javaid Zaidi; Carlos Fernandez. Tungsten-molybdenum oxide nanowires/reduced graphene oxide nanocomposite with enhanced and durable performance for electrocatalytic hydrogen evolution reaction. International Journal of Hydrogen Energy 2017, 42, 8130 -8138.

AMA Style

M. Imran, Ammar Bin Yousaf, Syed Javaid Zaidi, Carlos Fernandez. Tungsten-molybdenum oxide nanowires/reduced graphene oxide nanocomposite with enhanced and durable performance for electrocatalytic hydrogen evolution reaction. International Journal of Hydrogen Energy. 2017; 42 (12):8130-8138.

Chicago/Turabian Style

M. Imran; Ammar Bin Yousaf; Syed Javaid Zaidi; Carlos Fernandez. 2017. "Tungsten-molybdenum oxide nanowires/reduced graphene oxide nanocomposite with enhanced and durable performance for electrocatalytic hydrogen evolution reaction." International Journal of Hydrogen Energy 42, no. 12: 8130-8138.

Research article
Published: 19 January 2017 in The Journal of Physical Chemistry C
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Direct methanol fuel cell (DMFC) with noble metals based anode and cathode is a promising energy generator to portable power devices. However, the deterioration of catalyst performance suffered by CO poisoning, crossover of fuel from anode to cathode, and higher economical cost of such devices hinder their commercialization. Herein, all of the above issues have been neutralized and crossed the huge hump of faced challenges. Highly efficient, durable, and surfactant-free catalyst with ultralow Pt3Pd1 loadings supported on CeO2/C was synthesized. The ex-situ and in situ spectroelectrochemical techniques such as, CV, in situ FTIR, and online DEMS studies confirm the highly efficient activity of catalyst toward electro-oxidation of methanol. In addition, the critical and detailed analysis of RDE results prove the superiority of the present material for electro-reduction of oxygen along a cathode side. The as-synthesized catalyst has proven itself as a better substitute for commercial Pt/C catalyst, with enhanced and durable performance as anode and cathode material for DMFCs. The obtained remarkable performance of catalysts can be attributed to the accumulative effects of PtPd bimetallic NPs and the enhanced synergistic factors of CeO2 in a hybrid material.

ACS Style

Ammar Bin Yousaf; M. Imran; Nestor Uwitonze; Akif Zeb; Syed Javaid Zaidi; Dr Tariq Mahmood Ansari; Ghazala Yasmeen; Suryyia Manzoor. Enhanced Electrocatalytic Performance of Pt3Pd1 Alloys Supported on CeO2/C for Methanol Oxidation and Oxygen Reduction Reactions. The Journal of Physical Chemistry C 2017, 121, 2069 -2079.

AMA Style

Ammar Bin Yousaf, M. Imran, Nestor Uwitonze, Akif Zeb, Syed Javaid Zaidi, Dr Tariq Mahmood Ansari, Ghazala Yasmeen, Suryyia Manzoor. Enhanced Electrocatalytic Performance of Pt3Pd1 Alloys Supported on CeO2/C for Methanol Oxidation and Oxygen Reduction Reactions. The Journal of Physical Chemistry C. 2017; 121 (4):2069-2079.

Chicago/Turabian Style

Ammar Bin Yousaf; M. Imran; Nestor Uwitonze; Akif Zeb; Syed Javaid Zaidi; Dr Tariq Mahmood Ansari; Ghazala Yasmeen; Suryyia Manzoor. 2017. "Enhanced Electrocatalytic Performance of Pt3Pd1 Alloys Supported on CeO2/C for Methanol Oxidation and Oxygen Reduction Reactions." The Journal of Physical Chemistry C 121, no. 4: 2069-2079.