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Yucang Zhang
Key Laboratory of Advanced Materials of Tropical Island Resources of Ministry of Education, Hainan University, Hai Kou 570228, Hainan, China

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Journal article
Published: 22 May 2019 in Industrial Crops and Products
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The objective of this work is to track the composition changes in the process of liquefaction of banana pseudo-stem (BPs) and to maximize the cellulose fraction in the liquefied residue. Typical kinetics parameters of raw BPs and its three major components (lignin, hemicellulose and cellulose) were determined using kinetic models and transition-state theory. The results showed that cellulose had the highest activation energy and lowest reaction rate. The liquefied polyols were separated by water and acetone, and the functional groups, molecular weight distribution, acid values and hydroxyl values of different soluble parts were analyzed, providing an overall insight into the liquefaction behavior of BPs. The most suitable liquefaction conditions to avoid polycondensation and maximize cellulose content in the residues was at 150 °C with a reaction time of 90 min. Cellulose-enriched residues were readily purified by subsequent bleaching treatments. Based on the results of SEM, XRD, FTIR, TG and wet chemistry analyses, a mechanism of cellulose micro-fibril extraction from solid liquefied residues was proposed.

ACS Style

Fanrong Meng; Xiaoxiao Zhang; Wanfei Yu; Yucang Zhang. Kinetic analysis of cellulose extraction from banana pseudo-stem by liquefaction in polyhydric alcohols. Industrial Crops and Products 2019, 137, 377 -385.

AMA Style

Fanrong Meng, Xiaoxiao Zhang, Wanfei Yu, Yucang Zhang. Kinetic analysis of cellulose extraction from banana pseudo-stem by liquefaction in polyhydric alcohols. Industrial Crops and Products. 2019; 137 ():377-385.

Chicago/Turabian Style

Fanrong Meng; Xiaoxiao Zhang; Wanfei Yu; Yucang Zhang. 2019. "Kinetic analysis of cellulose extraction from banana pseudo-stem by liquefaction in polyhydric alcohols." Industrial Crops and Products 137, no. : 377-385.

Journal article
Published: 21 February 2019 in Bioresource Technology
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A phosphomolybdic acid promoted oxidative pyrolysis was described for preparation of banana pseudostem biochar. The strategy succeeded to introduce oxygen-containing groups onto the biochar surface at low temperature. In addition, pore channels were created, demonstrated by the SEM images of biochar prepared at 200 oC. Adsorption experiments showed that the biochar pyrolyzed at 200 oC exhibited much better adsorption capability than others pyrolyzed at higher temperatures for methylene blue (MB). The adsorption capability of biochar prepared at 200 oC was enhanced from 87.28 to 146.23 mg/g at 45 oC with phosphomolybdic acid modification. The enhancement of adsorption capacity could be ascribed to the increase of surface oxygen-containing functional groups and pore channels. In-situ generated carboxylic groups during adsorption and desorption played an important role in removal of MB. Adsorption of MB was mainly attributed to hydrogen bonding, electrostatic interactions and cation exchanges.

ACS Style

Sen Liu; Jihui Li; Shuang Xu; Mengzhen Wang; Yucang Zhang; Xinghua Xue. A modified method for enhancing adsorption capability of banana pseudostem biochar towards methylene blue at low temperature. Bioresource Technology 2019, 282, 48 -55.

AMA Style

Sen Liu, Jihui Li, Shuang Xu, Mengzhen Wang, Yucang Zhang, Xinghua Xue. A modified method for enhancing adsorption capability of banana pseudostem biochar towards methylene blue at low temperature. Bioresource Technology. 2019; 282 ():48-55.

Chicago/Turabian Style

Sen Liu; Jihui Li; Shuang Xu; Mengzhen Wang; Yucang Zhang; Xinghua Xue. 2019. "A modified method for enhancing adsorption capability of banana pseudostem biochar towards methylene blue at low temperature." Bioresource Technology 282, no. : 48-55.

Journal article
Published: 29 January 2019 in Carbohydrate Polymers
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Coconut waste husks were effectively utilized in this study as a promising cellulose source for production of purified coir cellulose (PCC) after multiple treatments, e.g., ultrasonic-assisted solvent immersion, alkaline treatment, bleaching, etc. As to upgrade the self-value of coir cellulose based products and further broaden their applications in light of biorefinery, coir cellulose nanofibrils (CCNF) with an average diameter of 5.6 ± 1.5 nm were prepared by selection of a milder TEMPO-mediated oxidation system (TEMPO/NaClO/NaClO2, pH = 4.8) accompanied by subsequent ultrasonic treatment. The cellulose nanofibrils were comprehensively characterized in terms of their functional groups, crystallinity, morphology, and thermal stability. The potential reinforcement of CCNFs as a filler for biodegradable PVA based films was investigated and the main properties including tensile strength, elongation at break, and thermal stability of CCNF/PVA composite films were significantly enhanced especially when 3% of CCNF (based on dry film weight) was applied.

ACS Style

Jun Wu; Xueyu Du; Zhibing Yin; Shuang Xu; Shuying Xu; Yucang Zhang. Preparation and characterization of cellulose nanofibrils from coconut coir fibers and their reinforcements in biodegradable composite films. Carbohydrate Polymers 2019, 211, 49 -56.

AMA Style

Jun Wu, Xueyu Du, Zhibing Yin, Shuang Xu, Shuying Xu, Yucang Zhang. Preparation and characterization of cellulose nanofibrils from coconut coir fibers and their reinforcements in biodegradable composite films. Carbohydrate Polymers. 2019; 211 ():49-56.

Chicago/Turabian Style

Jun Wu; Xueyu Du; Zhibing Yin; Shuang Xu; Shuying Xu; Yucang Zhang. 2019. "Preparation and characterization of cellulose nanofibrils from coconut coir fibers and their reinforcements in biodegradable composite films." Carbohydrate Polymers 211, no. : 49-56.

Review
Published: 23 November 2018 in Journal of Applied Polymer Science
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Bio‐based epoxy resin is a promising candidate for petroleum‐based resins due to its abundant reserves and low‐cost products, which mainly use polyphenolic composites as precursors. Liquefied banana pseudo stem (LBPS), a highly active compound obtained by liquefaction with 7.5% of sulfuric acid as catalyst at 160°C, was used to synthesize bio‐based epoxy resin. FTIR and SEM demonstrated the synthetic process of LBPS‐based epoxy resin (LBPSER) from waste banana pseudo stem (BPS). Mechanical test, reagent resistance, dynamic mechanical analysis, and thermogravimetric analysis were utilized to evaluate the mechanical and chemical properties of LBPSER. With polyamide (PA) as hardener, LBPSER‐PA adhesive exhibited an optimum shear strength that is comparable with that of commercial diglycidyl ether of bisphenol A (DGEBA), corresponding to 11.86 vs 11.89 MPa. Interestingly, the shear strength of this adhesive curing at 40°C could get 9.52 MPa for wood materials. The adhesive also performed excellent resistance to organic agents, adverse acidic, and alkaline environments. Notably, as the content of LBPSER in adhesive increased, an increase of glass transition temperature could be verified from 42 to 100°C. The LBPSER‐PA adhesive presented good thermal and physicochemical performances, thereby suggesting the potential of utilizing liquefied product from BPS as alternative to toxic bisphenol A in synthesizing bio‐based epoxy resin. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 136, 47135.

ACS Style

Ruisong Li; Wei Li; Fengyi Zheng; Yucang Zhang; Jiadan Hu. Versatile bio-based epoxy resin: From banana waste to applied materials. Journal of Applied Polymer Science 2018, 136, 1 .

AMA Style

Ruisong Li, Wei Li, Fengyi Zheng, Yucang Zhang, Jiadan Hu. Versatile bio-based epoxy resin: From banana waste to applied materials. Journal of Applied Polymer Science. 2018; 136 (10):1.

Chicago/Turabian Style

Ruisong Li; Wei Li; Fengyi Zheng; Yucang Zhang; Jiadan Hu. 2018. "Versatile bio-based epoxy resin: From banana waste to applied materials." Journal of Applied Polymer Science 136, no. 10: 1.

Journal article
Published: 17 November 2018 in Sustainability
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A low-cost biochar was prepared through slow pyrolysis of banana pseudostem biowaste at different temperatures, and characterized by surface area and porosity analysis, scanning electron microscopy (SEM), Fourier-transform infrared (FTIR) spectroscopy, and X-ray photoelectron spectroscopy (XPS). It was shown that the biochar prepared at low pyrolysis temperature was rich in oxygen-containing groups on the surface. Adsorption experiments revealed that the biochar prepared at 300 °C (BB300) was the best adsorbent for Cr(VI) with 125.44 mg/g maximum adsorption capacity at pH 2 and 25 °C. All the adsorption processes were well described by pseudo-second-order and Langmuir models, indicating a monolayer chemiadsorption. Furthermore, it was demonstrated that adsorption of Cr(VI) was mainly attributed to reduction of Cr(VI) to Cr(III) followed by ion exchange and complexation with the biochar.

ACS Style

Shuang Xu; Weiguang Yu; Sen Liu; Congying Xu; Jihui Li; Yucang Zhang. Adsorption of Hexavalent Chromium Using Banana Pseudostem Biochar and Its Mechanism. Sustainability 2018, 10, 4250 .

AMA Style

Shuang Xu, Weiguang Yu, Sen Liu, Congying Xu, Jihui Li, Yucang Zhang. Adsorption of Hexavalent Chromium Using Banana Pseudostem Biochar and Its Mechanism. Sustainability. 2018; 10 (11):4250.

Chicago/Turabian Style

Shuang Xu; Weiguang Yu; Sen Liu; Congying Xu; Jihui Li; Yucang Zhang. 2018. "Adsorption of Hexavalent Chromium Using Banana Pseudostem Biochar and Its Mechanism." Sustainability 10, no. 11: 4250.

Journal article
Published: 29 October 2018 in Materials Today Communications
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Searching for a low-cost and stable counter electrode catalyst is of great significance for dye-sensitized solar cells. In this work, a novel electrochemical catalyst of cobalt-based carbon nanofibers with incorporated nitrogen prepared by electrospinning technique has been introduced as an efficient Pt-free counter electrode in dye-sensitized solar cells for the first time. By introducing cobalt and nitrogen in the carbon nanofibers network, the electrocatalytic activity of the counter electrode is improved. The dye-sensitized solar cells fabricated using cobalt-based carbon nanofibers with incorporated nitrogen composite as counter electrode exhibit a high power conversion efficiency of 9.05 % measured at 100 mW cm–2 illumination, which is significantly higher than that of the most commonly used but expensive Pt counterpart (7.1 %). The present work highlights that cobalt-based carbon nanofibers with incorporated nitrogen composite is a suitable alternative counter electrode for dye-sensitized solar cells.

ACS Style

Ling Li; Xue Zhang; Zixiang Li; Shuang'An Liu; Xiaowei Li; Yucang Zhang; Wenming Zhang. Electrospinning preparation of cobalt-based carbon nanofibers with incorporated nitrogen as cost-effective counter electrodes for dye-sensitized solar cells. Materials Today Communications 2018, 18, 1 -6.

AMA Style

Ling Li, Xue Zhang, Zixiang Li, Shuang'An Liu, Xiaowei Li, Yucang Zhang, Wenming Zhang. Electrospinning preparation of cobalt-based carbon nanofibers with incorporated nitrogen as cost-effective counter electrodes for dye-sensitized solar cells. Materials Today Communications. 2018; 18 ():1-6.

Chicago/Turabian Style

Ling Li; Xue Zhang; Zixiang Li; Shuang'An Liu; Xiaowei Li; Yucang Zhang; Wenming Zhang. 2018. "Electrospinning preparation of cobalt-based carbon nanofibers with incorporated nitrogen as cost-effective counter electrodes for dye-sensitized solar cells." Materials Today Communications 18, no. : 1-6.

Journal article
Published: 21 August 2018 in Composites Part B: Engineering
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This work aimed to extraction of nanocellulose from banana pseudo-stems (BPs) via energy-saving method for reinforcing polymeric matrix materials. BPs was initially subjected to an atmospheric liquefaction process to remove waxes, pectin, hemicellulose and partly lignin. Bleaching treatment was further conducted to eliminate residual lignin and polycondensate in the liquefied residues. Cellulose nanofibers (CNF) were subsequently obtained by a two-stage TEMPO-mediated oxidation and high-intensity ultrasonic treatment. TEMPO-oxidized cellulose (TOC) thus produced were acid hydrolyzed into nanocrystals (CNC). Results show that liquefied residue content as well as its constituent varied with respect to liquefaction time. Scanning electron microscopy (SEM) and fourier transform infrared (FTIR) demonstrate that the progressive removal of non-cellulosic impurities. Results of transmission electron microscopy (TEM) and atomic force microscopy (AFM) exhibit that CNF present a range of 3–5 nm in diameter and 400–500 nm in length, while CNC have average diameter of 2.24 ± 0.57 nm and a length of 125 ± 28 nm. X-ray diffraction (XRD) analysis indicates that the cellulose crystal type of TOC would stay unchanged and the CNCs have a high crystallinity (75%). Thermogravimetric analysis (TGA) was also used to investigate the thermal stability of the residues and nanocelluloses.

ACS Style

Fanrong Meng; Guoqing Wang; Xueyu Du; Zhifen Wang; Shuying Xu; Yucang Zhang. Extraction and characterization of cellulose nanofibers and nanocrystals from liquefied banana pseudo-stem residue. Composites Part B: Engineering 2018, 160, 341 -347.

AMA Style

Fanrong Meng, Guoqing Wang, Xueyu Du, Zhifen Wang, Shuying Xu, Yucang Zhang. Extraction and characterization of cellulose nanofibers and nanocrystals from liquefied banana pseudo-stem residue. Composites Part B: Engineering. 2018; 160 ():341-347.

Chicago/Turabian Style

Fanrong Meng; Guoqing Wang; Xueyu Du; Zhifen Wang; Shuying Xu; Yucang Zhang. 2018. "Extraction and characterization of cellulose nanofibers and nanocrystals from liquefied banana pseudo-stem residue." Composites Part B: Engineering 160, no. : 341-347.

Journal article
Published: 01 August 2018 in Applied Surface Science
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Rhenium-doped platinum-nickel nanostructures supported on carbon nanofibers (Re-Pt3Ni/CN) were fabricated, used as counter electrodes (CEs) in dye-sensitized solar cells (DSSCs), by a simple electrospinning technique and a hydrothermal method. DSSCs employing Re-Pt3Ni/CN electrodes showed a higher power conversion efficiency (PCE) of 9.36% compared to solar cells with Pt, CN and Pt3Ni/CN CEs measured under the same conditions. The excellent photoelectric performance of the Re-Pt3Ni/CN CE is attributed to its stable octahedral structure and large specific surface area. Accordingly, the Re-Pt3Ni/CN CE is a promising cost-effective alternative CE for DSSCs.

ACS Style

Ling Li; Qi Lu; Jing Li; Xiaoyu Liu; Gengyu Shi; Fan Liu; Shuang Liu; Wenge Ding; Xiaohui Zhao; Yucang Zhang. Application of rhenium-doped Pt3Ni on carbon nanofibers as counter electrode for dye-sensitized solar cells. Applied Surface Science 2018, 448, 522 -528.

AMA Style

Ling Li, Qi Lu, Jing Li, Xiaoyu Liu, Gengyu Shi, Fan Liu, Shuang Liu, Wenge Ding, Xiaohui Zhao, Yucang Zhang. Application of rhenium-doped Pt3Ni on carbon nanofibers as counter electrode for dye-sensitized solar cells. Applied Surface Science. 2018; 448 ():522-528.

Chicago/Turabian Style

Ling Li; Qi Lu; Jing Li; Xiaoyu Liu; Gengyu Shi; Fan Liu; Shuang Liu; Wenge Ding; Xiaohui Zhao; Yucang Zhang. 2018. "Application of rhenium-doped Pt3Ni on carbon nanofibers as counter electrode for dye-sensitized solar cells." Applied Surface Science 448, no. : 522-528.

Journal article
Published: 31 July 2018 in Carbohydrate Polymers
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Pyrolysis characteristics of carrageenan-polyvinyl alcohol (CG-PVA) composite films were studied on a thermo gravimetric analyzer in N2 atmosphere. A stepwise procedure based on model-free Flynn-Wall-Ozawa (FWO), Kissinger-Akahira-Sunose (KAS) and Friedman-Reich-Levi (FRL) methods were applied to calculate the apparent activation energies ( E ). The range of E for CG-PVA/LBP/K film was 16.92~171.53 kJ/mol. Coats-Redfern and master-plots methods were utilized to investigate the most probable mechanisms for CG-PVA/LBP/K film. Further kinetic analysis was performed and revealed that five independent parallel reactions were supposed reasonably by deconvoluting DTG curves. Kinetic parameters of the corresponding five pseudo-components for CG-PVA/LBP/K film were separately calculated via Kissinger’s method using the peak maximum temperature. It’s concluded that lignin derivatives contributed the major part of degradation process. The orders of activation energy for pseudo components are E (PVA) > E (carrageenan) > E (biomass derivatives). The comprehensive analysis of pyrolysis kinetics may expand application fields of carrageenan based biocomposite films.

ACS Style

Fanrong Meng; Yijun Zhou; Junyu Liu; Jun Wu; Guoqing Wang; Ruisong Li; Yucang Zhang. Thermal decomposition behaviors and kinetics of carrageenan-poly vinyl alcohol bio-composite film. Carbohydrate Polymers 2018, 201, 96 -104.

AMA Style

Fanrong Meng, Yijun Zhou, Junyu Liu, Jun Wu, Guoqing Wang, Ruisong Li, Yucang Zhang. Thermal decomposition behaviors and kinetics of carrageenan-poly vinyl alcohol bio-composite film. Carbohydrate Polymers. 2018; 201 ():96-104.

Chicago/Turabian Style

Fanrong Meng; Yijun Zhou; Junyu Liu; Jun Wu; Guoqing Wang; Ruisong Li; Yucang Zhang. 2018. "Thermal decomposition behaviors and kinetics of carrageenan-poly vinyl alcohol bio-composite film." Carbohydrate Polymers 201, no. : 96-104.

Journal article
Published: 01 June 2018 in Composites Part B: Engineering
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This paper presents that carrageenan (CG) extracted with ultrasonic assisted alkali treatment has good physicochemical properties like uniform porosity and high gel-strength. After grafting with polyvinyl alcohol (PVA), the CG-PVA film was novel plasticized and strengthened by bio-polyol and common cation (Ca2+ or K+). The bio-bio- plasticizer derived from liquefied lignocellulosic biomass (banana pseudo-stem). The elongation of the composite film is significantly increased by 439.31% when adding 3wt% bio-polyol. Compared with calcium ion, potassium ion is more effective on promoting copolymer chains helix transition and up to 44.30 MPa higher tensile strength was obtained. FTIR analysis verifies the crosslinking reaction among frameworks of composite films. SEM characterization and contact angle measurement indicate that surface roughness of the hybrid film increases because of CaCO3 deposition caused by Ca2+ reacted with CO2 in the air or artificial produced. TG results show that the thermal stability of the hybrid film is also improved. The renewable and degradable organic-inorganic hybrid film has potential for packaging applications.

ACS Style

Fanrong Meng; Yucang Zhang; Zengheng Xiong; Guoqing Wang; Fangzhou Li; Ling Zhang. Mechanical, hydrophobic and thermal properties of an organic-inorganic hybrid carrageenan-polyvinyl alcohol composite film. Composites Part B: Engineering 2018, 143, 1 -8.

AMA Style

Fanrong Meng, Yucang Zhang, Zengheng Xiong, Guoqing Wang, Fangzhou Li, Ling Zhang. Mechanical, hydrophobic and thermal properties of an organic-inorganic hybrid carrageenan-polyvinyl alcohol composite film. Composites Part B: Engineering. 2018; 143 ():1-8.

Chicago/Turabian Style

Fanrong Meng; Yucang Zhang; Zengheng Xiong; Guoqing Wang; Fangzhou Li; Ling Zhang. 2018. "Mechanical, hydrophobic and thermal properties of an organic-inorganic hybrid carrageenan-polyvinyl alcohol composite film." Composites Part B: Engineering 143, no. : 1-8.

Journal article
Published: 01 June 2018 in Composites Part B: Engineering
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ACS Style

Ruisong Li; Yucang Zhang; Zengheng Xiong; Fengyi Zheng; Fanrong Meng. Liquefied banana pseudo stem-based epoxy composites: Incorporation of phenol derivative and its characterization. Composites Part B: Engineering 2018, 143, 28 -35.

AMA Style

Ruisong Li, Yucang Zhang, Zengheng Xiong, Fengyi Zheng, Fanrong Meng. Liquefied banana pseudo stem-based epoxy composites: Incorporation of phenol derivative and its characterization. Composites Part B: Engineering. 2018; 143 ():28-35.

Chicago/Turabian Style

Ruisong Li; Yucang Zhang; Zengheng Xiong; Fengyi Zheng; Fanrong Meng. 2018. "Liquefied banana pseudo stem-based epoxy composites: Incorporation of phenol derivative and its characterization." Composites Part B: Engineering 143, no. : 28-35.

Journal article
Published: 01 January 2018 in Carbohydrate Polymers
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To expand the applications of fishing industrial wastes, the liquefaction technique was employed to convert chitin into liquids, which were first further used for the modification of polymer materials. Ball-mill treated chitin was effectively liquefied into polyols in polyethylene glycol 400/glycerin mixed solvent. FTIR, (1)H NMR and size exclusion chromatography analyses of liquefied chitin turned out that depolymerization and deacetylation reactions occurred during liquefaction process. The liquefied chitin/polyvinyl alcohol blend membranes with various mixing ratios were prepared and characterized by FTIR and SEM. In addition, transparency, tensile strength, elongation at break, water absorption, water retention and antibacterial properties were thoroughly discussed. The mechanical property and thermal stability were greatly enhanced under the optimized conditions of 25wt% liquefied chitin incorporation to polyvinyl alcohol. Moreover, the blend membranes showed improvements in water absorption and water retention capacity. In particular, the antibacterial activity was significantly improved after incorporation of liquefied chitin.

ACS Style

Jie Zhang; Wen-Rong Xu; Yucang Zhang; Wei Li; Jiadan Hu; Fengyi Zheng; Yangtian Wu. Liquefied chitin/polyvinyl alcohol based blend membranes: Preparation and characterization and antibacterial activity. Carbohydrate Polymers 2018, 180, 175 -181.

AMA Style

Jie Zhang, Wen-Rong Xu, Yucang Zhang, Wei Li, Jiadan Hu, Fengyi Zheng, Yangtian Wu. Liquefied chitin/polyvinyl alcohol based blend membranes: Preparation and characterization and antibacterial activity. Carbohydrate Polymers. 2018; 180 ():175-181.

Chicago/Turabian Style

Jie Zhang; Wen-Rong Xu; Yucang Zhang; Wei Li; Jiadan Hu; Fengyi Zheng; Yangtian Wu. 2018. "Liquefied chitin/polyvinyl alcohol based blend membranes: Preparation and characterization and antibacterial activity." Carbohydrate Polymers 180, no. : 175-181.

Journal article
Published: 27 October 2017 in Electrochimica Acta
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In this work, a counter electrode (CE) made from a composite of electrospun carbon nanofibers (CNs) and MoO2 nanoparticles has been discussed for the first time as an efficient and low-cost Pt-free counter electrode (CE) for dye-sensitized solar cells (DSSCs). MoO2/carbon nanofiber composites (MoO2/CNs) were successfully prepared via a facile one-step hydrothermal method. The obtained MoO2/carbon electrode showed good chemical stability, lower charge transfer resistance and higher electrocatalytic activity as compared to the conventional Pt electrodes. The characteristics of DSSCs based on MoO2/CNs electrodes were analyzed using photocurrent density-voltage, cyclic voltammetry, Tafel polarization curve and electrochemical impedance spectroscopy measurements. The experimental results revealed that the MoO2/CNs electrodes exhibited the optimal electrode characteristics. The DSSCs based on MoO2/CNs electrodes displayed better photovoltaic conversion efficiency (7.6%) than the Pt counter electrodes (7.34%).

ACS Style

Ling Li; Huidong Sui; Kaifeng Zhao; Wenming Zhang; Xiaowei Li; Shuang Liu; Kun Yang; Mingxing Wu; Yucang Zhang. Preparation of carbon nanofibers supported MoO2 composites electrode materials for application in dye-sensitized solar cells. Electrochimica Acta 2017, 259, 188 -195.

AMA Style

Ling Li, Huidong Sui, Kaifeng Zhao, Wenming Zhang, Xiaowei Li, Shuang Liu, Kun Yang, Mingxing Wu, Yucang Zhang. Preparation of carbon nanofibers supported MoO2 composites electrode materials for application in dye-sensitized solar cells. Electrochimica Acta. 2017; 259 ():188-195.

Chicago/Turabian Style

Ling Li; Huidong Sui; Kaifeng Zhao; Wenming Zhang; Xiaowei Li; Shuang Liu; Kun Yang; Mingxing Wu; Yucang Zhang. 2017. "Preparation of carbon nanofibers supported MoO2 composites electrode materials for application in dye-sensitized solar cells." Electrochimica Acta 259, no. : 188-195.

Journal article
Published: 22 July 2017 in Journal of Power Sources
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In this work, MnO2 coated carbon nanofiber (MnO2/CNF) composites have been synthesized using a combination of electrospinning and hydrothermal techniques. First, CNFs are synthesized by electrospinning, then coated them with MnO2 based on the self-limiting reaction between CNFs and KMnO4. The prepared composites of MnO2/CNFs are used as a low-cost counter electrode (CE) for dye-sensitized solar cells (DSSCs). It is found that the composite MnO2/CNFs-3, corresponding to a 100 nm thick MnO2 coating resulted in the highest catalytic activity, moreover the corresponding DSSC shows a power conversion efficiency (PCE) of 8.86%, higher than that of the Pt CE based DSSC (8.27%).

ACS Style

Ling Li; Qi Lu; Junying Xiao; Jianwei Li; Hang Mi; Ruyue Duan; Jingbo Li; Wenming Zhang; Xiaowe Li; Shuang Liu; Kun Yang; Mingxing Wu; Yucang Zhang. Synthesis of highly effective MnO2 coated carbon nanofibers composites as low cost counter electrode for efficient dye-sensitized solar cells. Journal of Power Sources 2017, 363, 9 -15.

AMA Style

Ling Li, Qi Lu, Junying Xiao, Jianwei Li, Hang Mi, Ruyue Duan, Jingbo Li, Wenming Zhang, Xiaowe Li, Shuang Liu, Kun Yang, Mingxing Wu, Yucang Zhang. Synthesis of highly effective MnO2 coated carbon nanofibers composites as low cost counter electrode for efficient dye-sensitized solar cells. Journal of Power Sources. 2017; 363 ():9-15.

Chicago/Turabian Style

Ling Li; Qi Lu; Junying Xiao; Jianwei Li; Hang Mi; Ruyue Duan; Jingbo Li; Wenming Zhang; Xiaowe Li; Shuang Liu; Kun Yang; Mingxing Wu; Yucang Zhang. 2017. "Synthesis of highly effective MnO2 coated carbon nanofibers composites as low cost counter electrode for efficient dye-sensitized solar cells." Journal of Power Sources 363, no. : 9-15.

Paper
Published: 16 March 2017 in SynOpen
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A copper-catalysed, three-component reaction involving cyan­amides, fluoroalcohols and diaryliodonium triflates is disclosed for the synthesis of O-fluoroalkylisoureas. Various O-fluoroalkylisoureas were obtained in good yields by using simple and readily available substrates. Moreover, C–H activation of O-fluoroalkylisoureas mediated by PhI(OAc)2 was established to obtain 2-fluoroalkoxybenzimidazoles in high yields at room temperature.

ACS Style

Jihui Li; Weiguang Yu; Yifeng Hou; Wenxing Fu; Shuying Xu; Yucang Zhang. An Efficient Protocol for the Synthesis of O-Fluoroalkylisoureas through Copper-Catalysed, Three-Component Reaction of Cyan­amides, Fluoroalcohols and Diaryliodonium Triflates. SynOpen 2017, 01, 0076 -0083.

AMA Style

Jihui Li, Weiguang Yu, Yifeng Hou, Wenxing Fu, Shuying Xu, Yucang Zhang. An Efficient Protocol for the Synthesis of O-Fluoroalkylisoureas through Copper-Catalysed, Three-Component Reaction of Cyan­amides, Fluoroalcohols and Diaryliodonium Triflates. SynOpen. 2017; 01 (01):0076-0083.

Chicago/Turabian Style

Jihui Li; Weiguang Yu; Yifeng Hou; Wenxing Fu; Shuying Xu; Yucang Zhang. 2017. "An Efficient Protocol for the Synthesis of O-Fluoroalkylisoureas through Copper-Catalysed, Three-Component Reaction of Cyan­amides, Fluoroalcohols and Diaryliodonium Triflates." SynOpen 01, no. 01: 0076-0083.

Journal article
Published: 04 October 2016 in Electrochimica Acta
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Surface-doped Pt3Ni on carbon nanofibers (Pt3Ni/CN) with molybdenum (Mo-Pt3Ni/CN) was used as counter electrode in dye-sensitized solar cells (DSSC) for the first time. Cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and Tafel polarization results indicate that Mo-Pt3Ni/CN has a high electrocatalytic activity and facilitates rapid charge transfer. The power conversion efficiency (PCE) of the DSSCs with Mo-Pt3Ni/CNs as counter electrode increased to 9.47%, which is significantly higher than the Pt counter electrode (7.1%), measured with simulated full solar intensity (AM1.5 G).

ACS Style

Ling Li; Mingkun Wang; Junying Xiao; Huidong Sui; Wenming Zhang; Xiaowei Li; Kun Yang; Yucang Zhang; Mingxing Wu. Molybdenum-doped Pt 3 Ni on carbon nanofibers as counter electrode for high-performance dye-sensitized solar cell. Electrochimica Acta 2016, 219, 350 -355.

AMA Style

Ling Li, Mingkun Wang, Junying Xiao, Huidong Sui, Wenming Zhang, Xiaowei Li, Kun Yang, Yucang Zhang, Mingxing Wu. Molybdenum-doped Pt 3 Ni on carbon nanofibers as counter electrode for high-performance dye-sensitized solar cell. Electrochimica Acta. 2016; 219 ():350-355.

Chicago/Turabian Style

Ling Li; Mingkun Wang; Junying Xiao; Huidong Sui; Wenming Zhang; Xiaowei Li; Kun Yang; Yucang Zhang; Mingxing Wu. 2016. "Molybdenum-doped Pt 3 Ni on carbon nanofibers as counter electrode for high-performance dye-sensitized solar cell." Electrochimica Acta 219, no. : 350-355.

Original paper
Published: 20 August 2016 in Waste and Biomass Valorization
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Although epoxy resin was developed from liquefied sustainable resources, such as wood, corn bran, bagasse, etc., the use of liquefied biomass for manufacturing high performance epoxy resin has been limited because of the effects of these materials on properties of epoxy resin were unclear. Thus, the liquefied reed-based epoxy resin was synthesized by glycidyl etherification between liquefied reed and epichlorohydrin in this study. The relationship between reed liquefaction behavior and thermodynamic properties of liquefied reed-based epoxy resin was investigated by Gel permeation chromatography (GPC) and Thermogravimetric analysis (TGA), as well as by determination of residue content, phenol content, epoxy index and mechanical performance. The results indicated that not only high content of bound phenol, but also broad molecular weight distribution of liquefied reed would widen molecular weight distribution of synthetic epoxy resin, which was a major cause of low adhesive shear strength and great thermal stability of cured resin.

ACS Style

Ling Li; Mingkun Wang; Qingling Feng; Nuo Wei; Sha Li; Wenming Zhang; Kun Yang; Yucang Zhang. Investigation of the Relationship Between Reed Liquefaction Behavior and Thermodynamic Properties of Epoxy Resin Based on Liquefied Reed. Waste and Biomass Valorization 2016, 8, 1285 -1294.

AMA Style

Ling Li, Mingkun Wang, Qingling Feng, Nuo Wei, Sha Li, Wenming Zhang, Kun Yang, Yucang Zhang. Investigation of the Relationship Between Reed Liquefaction Behavior and Thermodynamic Properties of Epoxy Resin Based on Liquefied Reed. Waste and Biomass Valorization. 2016; 8 (4):1285-1294.

Chicago/Turabian Style

Ling Li; Mingkun Wang; Qingling Feng; Nuo Wei; Sha Li; Wenming Zhang; Kun Yang; Yucang Zhang. 2016. "Investigation of the Relationship Between Reed Liquefaction Behavior and Thermodynamic Properties of Epoxy Resin Based on Liquefied Reed." Waste and Biomass Valorization 8, no. 4: 1285-1294.

Journal article
Published: 08 August 2016 in Materials Research Bulletin
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Flower-like NiO nanoparticles was successfully synthetized by homogeneous precipitation. A novelty modified (CH3)4N)2S/((CH3)4N)2Sn electrolyte was introduced in solar cell successfully and NiS was used as the counter electrode. Moreover, CdSe sensitized p-type NiO was synthesized by chemical bath deposition (CBD) in a precursor solution to ensure the nanosized flower-like NiO films obtain a better uniformity and high penetration. Meanwhile, a series of parallel experiment were designed to investigate the effect of different CdSe deposition layers on the photoelectric characteristic of the cell. The result showed that when the film was eight layers, the maximum efficiency of 1.06% had been achieved, with a significantly open circuit voltage (Voc) of 0.755 V, a fill factor (ff) of 0.27% and a short circuit current density (Jsc) of 5.21 mA cm−2.

ACS Style

Xiaowei Li; Ruixue Chen; Huidong Sui; Xiaoxian Yuan; Meng Li; Kun Yang; Ling Li; Wenming Zhang; Yucang Zhang. Photoelectrochemical properties of CdSe quantum dot sensitized p-type flower-like NiO solar cells with different deposition layer. Materials Research Bulletin 2016, 84, 212 -217.

AMA Style

Xiaowei Li, Ruixue Chen, Huidong Sui, Xiaoxian Yuan, Meng Li, Kun Yang, Ling Li, Wenming Zhang, Yucang Zhang. Photoelectrochemical properties of CdSe quantum dot sensitized p-type flower-like NiO solar cells with different deposition layer. Materials Research Bulletin. 2016; 84 ():212-217.

Chicago/Turabian Style

Xiaowei Li; Ruixue Chen; Huidong Sui; Xiaoxian Yuan; Meng Li; Kun Yang; Ling Li; Wenming Zhang; Yucang Zhang. 2016. "Photoelectrochemical properties of CdSe quantum dot sensitized p-type flower-like NiO solar cells with different deposition layer." Materials Research Bulletin 84, no. : 212-217.

Journal article
Published: 27 April 2016 in European Journal of Organic Chemistry
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A highly efficient copper-catalyzed three-component reaction of cyanamides, amines, and diaryliodonium triflates was developed for the synthesis of guanidines. The mild reaction accommodates both aromatic and aliphatic amines and provides the products in good yields with good functional group tolerance. Moreover, it was demonstrated that C–H activation of the arenes could be realized for the direct preparation of guanidines.

ACS Style

Jihui Li; Hongxing Wang; Yifeng Hou; Weiguang Yu; Shuying Xu; Yucang Zhang. A General and Mild Copper(I)-Catalyzed Three-Component Reaction of Cyanamides, Amines, and Diaryl­iodonium Triflates. European Journal of Organic Chemistry 2016, 2016, 2388 -2392.

AMA Style

Jihui Li, Hongxing Wang, Yifeng Hou, Weiguang Yu, Shuying Xu, Yucang Zhang. A General and Mild Copper(I)-Catalyzed Three-Component Reaction of Cyanamides, Amines, and Diaryl­iodonium Triflates. European Journal of Organic Chemistry. 2016; 2016 (14):2388-2392.

Chicago/Turabian Style

Jihui Li; Hongxing Wang; Yifeng Hou; Weiguang Yu; Shuying Xu; Yucang Zhang. 2016. "A General and Mild Copper(I)-Catalyzed Three-Component Reaction of Cyanamides, Amines, and Diaryl­iodonium Triflates." European Journal of Organic Chemistry 2016, no. 14: 2388-2392.

Journal article
Published: 01 January 2016 in Chinese Journal of Organic Chemistry
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ACS Style

Shuying Xu; Xiaojia Chen; Jihui Li; Wenrong Xu; Yucang Zhang. Recent Advances in Transition Metal-Catalyzed Synthesis of Guanidines. Chinese Journal of Organic Chemistry 2016, 36, 1985 .

AMA Style

Shuying Xu, Xiaojia Chen, Jihui Li, Wenrong Xu, Yucang Zhang. Recent Advances in Transition Metal-Catalyzed Synthesis of Guanidines. Chinese Journal of Organic Chemistry. 2016; 36 (9):1985.

Chicago/Turabian Style

Shuying Xu; Xiaojia Chen; Jihui Li; Wenrong Xu; Yucang Zhang. 2016. "Recent Advances in Transition Metal-Catalyzed Synthesis of Guanidines." Chinese Journal of Organic Chemistry 36, no. 9: 1985.