Selective electrocatalysts toward a prototype of the membraneless direct methanol fuel cell
文献类型：期刊论文
| 作者 | Feng, Yan1,2; Yang, Jinhua3; Liu, Hui1,2; Ye, Feng1; Yang, Jun1,3 |
| 刊名 | SCIENTIFIC REPORTS
 |
| 出版日期 | 2014-01-22 |
| 卷号 | 4期号:1 |
| 关键词 | oxygen reduction laminar-flow composite membranes nafion membrane noble-metals crossover platinum electrolyte nanoparticles nanocrystals |
| ISSN号 | 2045-2322 |
| 其他题名 | Sci Rep |
| 中文摘要 | Mastery over the structure of nanomaterials enables control of their properties to enhance their performance for a given application. Herein we demonstrate the design and fabrication of Pt-based nanomaterials with enhanced catalytic activity and superior selectivity toward the reactions in direct methanol fuel cells (DMFCs) upon the deep understanding of the mechanisms of these electrochemical reactions. In particular, the ternary Au@Ag2S-Pt nanocomposites display superior methanol oxidation reaction (MOR) selectivity due to the electronic coupling effect among different domains of the nanocomposites, while the cage-bell structured Pt-Ru nanoparticles exhibit excellent methanol tolerance for oxygen reduction reaction (ORR) at the cathode because of the differential diffusion of methanol and oxygen in the porous Ru shell of the cage-bell nanoparticles. The good catalytic selectivity of these Pt-based nanomaterials via structural construction enables a DMFCto be built without a proton exchange membrane between the fuel electrode and the oxygen electrode. |
| 英文摘要 | Mastery over the structure of nanomaterials enables control of their properties to enhance their performance for a given application. Herein we demonstrate the design and fabrication of Pt-based nanomaterials with enhanced catalytic activity and superior selectivity toward the reactions in direct methanol fuel cells (DMFCs) upon the deep understanding of the mechanisms of these electrochemical reactions. In particular, the ternary Au@Ag2S-Pt nanocomposites display superior methanol oxidation reaction (MOR) selectivity due to the electronic coupling effect among different domains of the nanocomposites, while the cage-bell structured Pt-Ru nanoparticles exhibit excellent methanol tolerance for oxygen reduction reaction (ORR) at the cathode because of the differential diffusion of methanol and oxygen in the porous Ru shell of the cage-bell nanoparticles. The good catalytic selectivity of these Pt-based nanomaterials via structural construction enables a DMFCto be built without a proton exchange membrane between the fuel electrode and the oxygen electrode. |
| WOS标题词 | Science & Technology |
| 类目[WOS] | Multidisciplinary Sciences |
| 研究领域[WOS] | Science & Technology - Other Topics |
| 关键词[WOS] | OXYGEN REDUCTION ; LAMINAR-FLOW ; COMPOSITE MEMBRANES ; NAFION MEMBRANE ; NOBLE-METALS ; CROSSOVER ; PLATINUM ; ELECTROLYTE ; NANOPARTICLES ; NANOCRYSTALS |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000330044700004 |
| 公开日期 | 2014-05-06 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/8200]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Inst Bioengn & Nanotechnol, Singapore 138669, Singapore |
| 推荐引用方式 GB/T 7714 | Feng, Yan,Yang, Jinhua,Liu, Hui,et al. Selective electrocatalysts toward a prototype of the membraneless direct methanol fuel cell[J]. SCIENTIFIC REPORTS,2014,4(1). |
| APA | Feng, Yan,Yang, Jinhua,Liu, Hui,Ye, Feng,&Yang, Jun.(2014).Selective electrocatalysts toward a prototype of the membraneless direct methanol fuel cell.SCIENTIFIC REPORTS,4(1). |
| MLA | Feng, Yan,et al."Selective electrocatalysts toward a prototype of the membraneless direct methanol fuel cell".SCIENTIFIC REPORTS 4.1(2014). |
入库方式： OAI收割
来源：过程工程研究所
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