DICP OpenIR
Pt-based anode catalysts for direct ethanol fuel cells; Pt-based anode catalysts for direct ethanol fuel cells
Zhou, WJ; Song, SQ; Li, WZ; Sun, GQ; Xin, Q; Kontou, S; Poulianitis, K; Tsiakaras, P
关键词Direct Ethanol Fuel Cells (Defcs) Direct Ethanol Fuel Cells (Defcs) Carbon Supported Ptsn Catalysts Carbon Supported Ptsn Catalysts Polymer Exchange Electrolyte Polymer Exchange Electrolyte
刊名SOLID STATE IONICS ; SOLID STATE IONICS
2004-11-30 ; 2004-11-30
DOI10.1016/j.ssi.2004.09.055 ; 10.1016/j.ssi.2004.09.055
175期:1-4页:797-803
收录类别ISTP ; ISTP ; SCI ; SCI
文章类型Article ; Article
项目归属305 ; 305
产权排名1;1 ; 1;1
WOS标题词Science & Technology ; Science & Technology ; Physical Sciences ; Physical Sciences
类目[WOS]Chemistry, Physical ; Chemistry, Physical ; Physics, Condensed Matter ; Physics, Condensed Matter
研究领域[WOS]Chemistry ; Chemistry ; Physics ; Physics
关键词[WOS]METHANOL ELECTROOXIDATION ; METHANOL ELECTROOXIDATION ; MASS-SPECTROMETRY ; MASS-SPECTROMETRY ; OXIDATION ; OXIDATION ; RU ; RU ; PERFORMANCE ; PERFORMANCE ; SN ; SN
英文摘要In the present work, several carbon supported PtSn and PtSnRu catalysts were prepared with different atomic ratios and tested in direct ethanol fuel cells (DEFC) operated at lower temperature (T=90 degreesC). XRD and TEM results indicate that all of these catalysts consist of uniform nano-sized particles of narrow distribution and the average particle sizes are always less than 3.0 nm. As the content of Sn increases, the Pt lattice parameter becomes longer. Single direct ethanol fuel cell tests were used to evaluate the performance of carbon supported PtSn catalysts for ethanol electro-oxidation. It was found that the addition of Sn can enhance the activity towards ethanol electro-oxidation. It is also found that a single DEFC of Pt/Sn atomic ratioless than or equal to2, "Pt1Sn1/C, Pt3Sn2/C, and Pt2Sn1/C" shows better performance than those with Pt3Sn1/C and Pt4Sn1/C. But even adopting the least active PtSn catalyst, Pt4Sn1/C, the DEFC also exhibits higher performance than that with the commercial Pt1Ru1/C, which is dominatingly used in PEMFC at present as anode catalyst for both methanol electro-oxidation and CO-tolerance. At 90 degreesC, the DEFC exhibits the best performance when Pt2Sn1/C is adopted as anode catalysts. This distinct difference in DEFC performance between the catalysts examined here is attributed to the so-called bifunctional mechanism and to the electronic interaction between Pt and Sn. It is thought that -OHads, Surface Pt active sites and the ohmic effect of PtSn/C catalyst determines the electro-oxidation activity of PtSn catalysts with different Pt/Sn ratios. (C) 2004 Elsevier B.V. All rights reserved.; In the present work, several carbon supported PtSn and PtSnRu catalysts were prepared with different atomic ratios and tested in direct ethanol fuel cells (DEFC) operated at lower temperature (T=90 degreesC). XRD and TEM results indicate that all of these catalysts consist of uniform nano-sized particles of narrow distribution and the average particle sizes are always less than 3.0 nm. As the content of Sn increases, the Pt lattice parameter becomes longer. Single direct ethanol fuel cell tests were used to evaluate the performance of carbon supported PtSn catalysts for ethanol electro-oxidation. It was found that the addition of Sn can enhance the activity towards ethanol electro-oxidation. It is also found that a single DEFC of Pt/Sn atomic ratioless than or equal to2, "Pt1Sn1/C, Pt3Sn2/C, and Pt2Sn1/C" shows better performance than those with Pt3Sn1/C and Pt4Sn1/C. But even adopting the least active PtSn catalyst, Pt4Sn1/C, the DEFC also exhibits higher performance than that with the commercial Pt1Ru1/C, which is dominatingly used in PEMFC at present as anode catalyst for both methanol electro-oxidation and CO-tolerance. At 90 degreesC, the DEFC exhibits the best performance when Pt2Sn1/C is adopted as anode catalysts. This distinct difference in DEFC performance between the catalysts examined here is attributed to the so-called bifunctional mechanism and to the electronic interaction between Pt and Sn. It is thought that -OHads, Surface Pt active sites and the ohmic effect of PtSn/C catalyst determines the electro-oxidation activity of PtSn catalysts with different Pt/Sn ratios. (C) 2004 Elsevier B.V. All rights reserved.
语种英语 ; 英语
原文出处查看原文 ; 查看原文
WOS记录号WOS:000225990500162 ; WOS:000225990500162
引用统计
被引频次:103[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/321008/81259
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, Dalian 116023, Peoples R China
2.Univ Thessalia, Sch Engn, Dept Mech & Ind Engn, Pedion Areos 38334, Volos, Greece
推荐引用方式
GB/T 7714
Zhou, WJ,Song, SQ,Li, WZ,et al. Pt-based anode catalysts for direct ethanol fuel cells, Pt-based anode catalysts for direct ethanol fuel cells[J]. SOLID STATE IONICS, SOLID STATE IONICS,2004, 2004,175, 175(1-4):797-803, 797-803.
APA Zhou, WJ.,Song, SQ.,Li, WZ.,Sun, GQ.,Xin, Q.,...&Tsiakaras, P.(2004).Pt-based anode catalysts for direct ethanol fuel cells.SOLID STATE IONICS,175(1-4),797-803.
MLA Zhou, WJ,et al."Pt-based anode catalysts for direct ethanol fuel cells".SOLID STATE IONICS 175.1-4(2004):797-803.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
200434H69X550B.pdf(595KB) 开放获取--请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Zhou, WJ]的文章
[Song, SQ]的文章
[Li, WZ]的文章
百度学术
百度学术中相似的文章
[Zhou, WJ]的文章
[Song, SQ]的文章
[Li, WZ]的文章
必应学术
必应学术中相似的文章
[Zhou, WJ]的文章
[Song, SQ]的文章
[Li, WZ]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。