Pt4ZrO2/C cathode catalyst for improved durability in high temperature PEMFC based on H3PO4 doped PBI
文献类型：期刊论文
| 作者 | Liu, Gang; Zhang, Huamin; Zhai, Yunfeng; Zhang, Yu; Xu, Dongyan; Shao, Zhi-gang |
| 刊名 | electrochemistry communications
 |
| 出版日期 | 2007 |
| 卷号 | 9期号:1页码:135-141 |
| 关键词 | Pt4ZrO2/C oxygen reduction durability potential sweep test high temperature PEMFC |
| 产权排序 | 1;1 |
| 通讯作者 | 张华民 |
| 英文摘要 | in this paper, pt4zro2/c was prepared and compared with commercial pt/c (46.6 wt.% tkk) in terms of the durability as cathode catalyst in a high temperature proton exchange membrane fuel cell (pemfc) based on h3po4 doped polybenzimidazole (pbi) by a potential sweep test. the catalysts before and after the potential sweep test were characterized by rotating disk electrode (rde), xray diffraction (xrd), transmission electron microscopy (tem) and inductively coupled plasma-atomic emission spectroscopy (icp-aes). after 3000 cycles potential sweep test, the overall performance loss of the pt4zro2/c membrane electrode assembly (mea) was less than that of the pt/c mea. the ride results demonstrated that the oxygen reduction reaction (orr) activity of the as-prepared pt4zro2/c is nearly the same as tkk-pt/c. the xrd and tem results showed that pt4zro2/c catalyst presented higher sintering resistance than commercial pt/c catalyst during the potential sweep test. this may be attributed to the addition of zro2, which acts an anchor to inhibit the adjacent platinum particles to agglomerate. the icp-aes results of pt4zro2/c cathode catalyst before and after the potential sweep test showed that the composition of pt and zr were very near the nominal atomic ratio of pt:zr, which reflected that pt4zro2/c catalyst had a good stability during the potential sweep test. in brief, the preliminary results indicate that pt4zro2/c catalyst is a good candidate of pt/c catalyst in high temperature pemfc based on h3po4 doped pbi for achieving longer cell life-time and higher cell performance. (c) 2006 elsevier b.v. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | electrochemistry |
| 研究领域[WOS] | electrochemistry |
| 关键词[WOS] | supported platinum catalysts ; membrane fuel-cells ; surface-area loss ; oxygen reduction ; polymer electrolyte ; phosphoric-acid ; carbon ; alloys ; electrocatalysis |
| 收录类别 | SCI |
| 原文出处 | true |
| 语种 | 英语 |
| WOS记录号 | WOS:000243847600025 |
| 公开日期 | 2010-11-30 |
| 源URL | [http://159.226.238.44/handle/321008/98987]  |
| 专题 | 大连化学物理研究所_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, Lab PEMFC Key Mat & Technol, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Gang,Zhang, Huamin,Zhai, Yunfeng,et al. Pt4ZrO2/C cathode catalyst for improved durability in high temperature PEMFC based on H3PO4 doped PBI[J]. electrochemistry communications,2007,9(1):135-141. |
| APA | Liu, Gang,Zhang, Huamin,Zhai, Yunfeng,Zhang, Yu,Xu, Dongyan,&Shao, Zhi-gang.(2007).Pt4ZrO2/C cathode catalyst for improved durability in high temperature PEMFC based on H3PO4 doped PBI.electrochemistry communications,9(1),135-141. |
| MLA | Liu, Gang,et al."Pt4ZrO2/C cathode catalyst for improved durability in high temperature PEMFC based on H3PO4 doped PBI".electrochemistry communications 9.1(2007):135-141. |
入库方式： OAI收割
来源：大连化学物理研究所
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