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	1. Self-assembled graphene films with various thicknesses as supercapacitor electrodes
	ZHU Jianbo,CHEN Wenjing,GUAN Sinan,ZHAO Xiayi,CHEN Xueye,ZU Jiasheng
	Chemical Engineering 03 June 2020
	Show/Hide Abstract \| Cite this paper︱Full-text: PDF (1190K B)

	Abstract:In this paper,Graphene have attracted considerable attention as the supercapacitor material due to its high electronic conductivity and large ion-accessible surface area. Herein, self-assembled reduced grapheneoxide (rGO) films with various controllable thicknesses and mass loadings are facilely prepared via a scalable vacuum filtration method. The rGO film electrodes with considerable mass loading of 6.7 mg cm-2 exhibit high specific capacitance of 173.4 F g-1 (1.16 F cm-2) at 1 A g-1 in 6 M KOH aqueous electrolyte, indicating the high utilization of the rGO active material. Moreover, quasi-solid supercapacitors fabricated with the rGO film electrode and PVA/KOH gel electrolyte shows a high capacitance of 1.03 F cm-2 and a large energy density of 0.073 mWh cm-2 at the power density of 3.3 mW cm-2, as well as excellent cycling stability of 85.6% retention after 10000 cycles. Such remarkable performance suggests that the rGO films are promising electrode materials for supercapacitor application.
	TO cite this article:ZHU Jianbo,CHEN Wenjing,GUAN Sinan, et al. Self-assembled graphene films with various thicknesses as supercapacitor electrodes[OL].[ 3 June 2020] http://en.paper.edu.cn/en_releasepaper/content/4752297


	2. Preparation and Application of CMC-PVA/CS-PVA bipolar membranes modified by PAN-FePc (COOH)8
	LI Zhonggui,CHEN Riyao
	Chemical Engineering 07 April 2015
	Show/Hide Abstract \| Cite this paper︱Full-text: PDF (4K B)

	Abstract:In this paper, the polyacrylonitrile (PAN)-iron octocarboxyphthalocyanine (FePc(COOH)8) nanofibers were prepared using electrospinning technique and introduced into the interlayer of a carboxymethyl cellulose (CMC)-polyvinyl alcohol (PVA)/chitosan (CS)-polyvinyl alcohol bipolar membrane (BPM), which was characterized using SEM, contact angle measurement, current-voltage characteristics, AC impedance spectroscopy and so on. The experimental results showed that after modification by PAN-FePc(COOH)8 nanofibers, the membrane impedance of the BPM and its cell voltage were decreased. That indicated that the water splitting efficiency in the interlayer of the BPM was increased. Then the prepared CMC-PVA/PAN-FePc(COOH)8/CS-PVA BPM was used in the electro-oxidized preparation of dialdehydle starch (DAS). The experimental results indicated that a current density of 20mAocm-2 was suitable to obtain high current efficiency. When the electrolysis time was 3h at a current density of 20 mAocm-2 , the current efficiency of the CMC-PVA/PAN-FePc(COOH)8/CS-PVA BPM-equipped cell was as high as 67%.
	TO cite this article:LI Zhonggui,CHEN Riyao. Preparation and Application of CMC-PVA/CS-PVA bipolar membranes modified by PAN-FePc (COOH)8[OL].[ 7 April 2015] http://en.paper.edu.cn/en_releasepaper/content/4637992


	3. Effects of Carbon on Structure and Electrochemical Performance of Li2FeSiO4 Cathode Materials for Lithium-ion Batteries
	ZUO Pengjian,CHENG Guangyu,WANG Tao,LI Chunxiao,YIN Geping
	Chemical Engineering 02 January 2012
	Show/Hide Abstract \| Cite this paper︱Full-text: PDF (4K B)

	Abstract:Li2FeSiO4/C composite cathode material was prepared by solid-state method with sucrose as carbon source. The effects of carbon content on structure and electrochemical performance of Li2FeSiO4/C cathode materials for lithium-ion batteries were investigated. The materials were characterized comparatively by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), galvanostatic charge-discharge, electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV), respectively. The SEM images showed that the Li2FeSiO4/C consists of partially agglomerated nanoparticles with an average particle size of 100 nm. TEM images confirmed that a carbon layer was formed on the surface of Li2FeSiO4/C particles, which aimed to enhance the electronic conductivity of the material as well as inhibit the agglomeration during annealing process. The electrochemical measurement results revealed that the Li2FeSiO4/C composite with 7.5wt % carbon shows a good electrochemical performance with an initial discharge capacity of 141 mAhog-1 at 0.1C, and remains a discharge capacity of 103.6 mAhog-1 at 0.5C after 50 cycles.
	TO cite this article:ZUO Pengjian,CHENG Guangyu,WANG Tao, et al. Effects of Carbon on Structure and Electrochemical Performance of Li2FeSiO4 Cathode Materials for Lithium-ion Batteries[J].


	4. Effect of anode composition on the electrochemical properties of the direct hydrazine fuel cell
	Ye Liqiang,Li Zhoupeng
	Chemical Engineering 09 June 2010
	Show/Hide Abstract \| Cite this paper︱Full-text: PDF (4K B)

	Abstract:A composite catalyst has been prepared by mixing Ni powder, surface-treated Zr-Ni alloy and Pd/C and used as the anode catalyst in the direct hydrazine fuel cell (DHFC). The catalytic activity of these catalysts is evaluated by linear potential sweep, electrochemical impedance spectra (EIS) analysis, polarization measurement. A maximum power density of 106 mW cm-2 has been achieved by using the composite catalyst as the anode catalyst and Pt/C as the cathode catalyst at 0.407 V under ambient conditions. It is found that the composite catalyst shows lower polarization than other catalysts. Results from linear potential sweep and EIS confirm that the cell performance is determined by the anode electrocatalysis towards the oxidation of hydrazine.
	TO cite this article:Ye Liqiang,Li Zhoupeng. Effect of anode composition on the electrochemical properties of the direct hydrazine fuel cell[OL].[ 9 June 2010] http://en.paper.edu.cn/en_releasepaper/content/4375570

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