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学科主题: 物理化学
题名: PREPARATION AND CHARACTERIZATION OF PTSN/C ANODE ELECTROCATALYSTS FOR DIRECT ETHANOL FUEL CELL
作者: Jiang LH(姜鲁华) ;  Zhou ZH(周振华) ;  Zhou WJ(周卫江) ;  Li WZ(李文震) ;  Song SQ(宋树芹) ;  Li HQ(李焕巧) ;  Sun GQ(孙公权) ;  Xin Q(辛勤)
会议名称: 3rd Asia-Pacific Congress on Catlysis
会议日期: 2003-10-12
出版日期: 2003-10-12
会议地点: 中国
其他题名: 直接乙醇燃料电池阳极PtSn/C催化剂的制备及表征
通讯作者: 辛勤
部门归属: 三室
主办者: 大连化学物理研究所
摘要: Highly active PtSn/C catalyst was prepared by a polyol method. The catalyst was reduced in H2/Ar atmosphere at 600 oC for 2 hours in order to obtain different metallic phase. TEM images show uniform dispersion of spherical metal nanoparticles with average diameters of 1.8 nm and 3.9 nm for the as-prepared and treated catalysts, respectively. UV/VIS spectrophotometer is employed to monitor the preparation process and the results show that Pt-Sn complex formed once the precursors of Pt and Sn were mixed. The structure properties of the samples were characterized using X-ray diffraction. The results show that after reduction, the catalyst tends to form PtSn alloy. TPR experiment results show that Sn exists in multivalent state in the as-prepared sample while only zero-valence Sn was detected in the treated sample. Cyclic voltammety (CV) technique and single direct ethanol fuel cell (DEFC) tests indicate that the as-prepared catalyst possesses superior catalytic activity for ethanol oxidation to the treated sample. The results suggest that Pt and multivalence Sn are the active species for ethanol oxidation.
语种: 中文
内容类型: 会议论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/111456
Appears in Collections:中国科学院大连化学物理研究所_会议论文

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Recommended Citation:
Jiang LH,Zhou ZH,Zhou WJ,et al. PREPARATION AND CHARACTERIZATION OF PTSN/C ANODE ELECTROCATALYSTS FOR DIRECT ETHANOL FUEL CELL[C]. 见:3rd Asia-Pacific Congress on Catlysis. 中国. 2003-10-12.
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