DICP OpenIR
Subject Area物理化学
PREPARATION AND CHARACTERIZATION OF PTSN/C ANODE ELECTROCATALYSTS FOR DIRECT ETHANOL FUEL CELL
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)
Conference Name3rd Asia-Pacific Congress on Catlysis
Conference Date2003-10-12
2003-10-12
Conference Place中国
Alternative Title直接乙醇燃料电池阳极PtSn/C催化剂的制备及表征
Pages609/2
Department三室
Funding Organization大连化学物理研究所
AbstractHighly 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.
Language中文
Document Type会议论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/111456
Collection中国科学院大连化学物理研究所
Corresponding AuthorXin Q(辛勤)
Recommended Citation
GB/T 7714
Jiang LH,Zhou ZH,Zhou WJ,et al. PREPARATION AND CHARACTERIZATION OF PTSN/C ANODE ELECTROCATALYSTS FOR DIRECT ETHANOL FUEL CELL[C],2003:609/2.
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