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Preparation and characterization of PtSn/C anode electrocatalysts for direct ethanol fuel cell
Jiang, LH; Sun, GQ; Zhou, ZH; Xin, Q
关键词Electrocatalyst Direct Ethanol Fuel Cell Cyclic Voltammetry
刊名CATALYSIS TODAY
2004-09-01
DOI10.1016/j.cattod.2004.06.029
93-5页:665-670
收录类别ISTP ; SCI
文章类型Article
项目归属305
产权排名1;1
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Applied ; Chemistry, Physical ; Engineering, Chemical
研究领域[WOS]Chemistry ; Engineering
关键词[WOS]PLATINUM-TIN ; CATALYSTS ; METHANOL ; ELECTROOXIDATION ; OXIDATION ; PERFORMANCE ; SURFACES ; ALLOYS
英文摘要Highly active PtSn/C catalyst was prepared by a polyol method. The catalyst was reduced in H-2/Ar atmosphere at 600 degreesC for 2 h in order to obtain different metallic phase. TEM images show uniform dispersion of spherical metal nanoparticles with average diameters of 1.8 and 3.9 nm for the as-prepared and treated catalysts, respectively. UV-vis spectrophotometry is employed to monitor the preparation process and the results indicate that Pt-Sn complex formed once the precursors of Pt and Sn were mixed together. 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, while it could not be excluded that the multivalent tin existed in the treated sample. Cyclic voltammetry (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 multivalent Sn are the active species for ethanol oxidation. (C) 2004 Elsevier B.V. All rights reserved.
语种英语
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WOS记录号WOS:000223973200095
引用统计
被引频次:108[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/81239
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Direct Alcohol Fuel Cell Lab, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
3.Headwaters Nanokineti, Lawrenceville, NJ 08648 USA
4.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
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Jiang, LH,Sun, GQ,Zhou, ZH,et al. Preparation and characterization of PtSn/C anode electrocatalysts for direct ethanol fuel cell[J]. CATALYSIS TODAY,2004,93-5:665-670.
APA Jiang, LH,Sun, GQ,Zhou, ZH,&Xin, Q.(2004).Preparation and characterization of PtSn/C anode electrocatalysts for direct ethanol fuel cell.CATALYSIS TODAY,93-5,665-670.
MLA Jiang, LH,et al."Preparation and characterization of PtSn/C anode electrocatalysts for direct ethanol fuel cell".CATALYSIS TODAY 93-5(2004):665-670.
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