文献类型：期刊文献

英文题名：Effect of electrode fabrication methods on the electrode performance for ethanol oxidation

作者：Qin, Yuan-Hang[1];Li, Hui-Cheng[1];Yang, Hou-Hua[1];Zhang, Xin-Sheng[1];Zhou, Xing-Gui[1];Niu, Li[2];Yuan, Wei-Kang[1]

机构：[1]E China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[2]Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Electroanalyt Chem, Changchun 130022, Peoples R China

年份：2011

卷号：196

期号：1

起止页码：159

外文期刊名：JOURNAL OF POWER SOURCES

收录：;EI(收录号：20103613220169);WOS:【SCI-EXPANDED(收录号:WOS:000282493100020)】；

基金：The present study was supported by the open foundation of the State Key Laboratory of Electroanalytical Chemistry (Changchun Institute of Applied Chemistry, Chinese Academy of Sciences), Shanghai Key Laboratory of Green Chemistry and Chemical Process (East China Normal University) and the State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology (Zhejiang University of Technology).

语种：英文

外文关键词：Carbon nanofiber; Palladium; Ethanol oxidation; Electrophoretic deposition; Pulse electrodeposition; Electrode fabrication

摘要：Two palladium/carbon nanofibers modified glassy carbon electrodes, Pd/CNFs/GC-C and Pd/CNFs/GC-E, are fabricated by the conventional powder type method and by the electrophoretic deposition in conjunction with pulse electrodeposition method, respectively. Field emission scanning electron microscopy and high resolution transmission electron microscopy reveal that Pd particles are uniformly dispersed on the two electrodes and X-ray diffraction shows the average Pd particle size of the Pd/CNFs/GC-E electrode is slightly larger than that of the Pd/CNFs/GC-C electrode. Cyclic voltammetric analysis shows that the electrocatalytic activity of Pd/CNFs/GC-E electrode is better than that of Pd/CNFs/GC-C electrode for ethanol oxidation in alkaline media, although the latter has higher Pd loading than the former. This is believed to be due to the higher utilization of Pd catalyst on Pd/CNFs/GC-E electrode than on Pd/CNFs/GC-C electrode, which is confirmed by the electrochemically active surface area measurements. In addition, chronopotentiometric analysis shows the long-term operation stability of Pd/CNFs/GC-E electrode is better than that of Pd/CNFs/GC-C electrode. (c) 2010 Elsevier B.V. All rights reserved.