A quantitative research on S- and SO2-poisoning Pt/Vulcan carbon fuel cell catalyst
文献类型：期刊论文
| 作者 | Xie, Feng1,2; Shao, Zhi-Gang1; Zhang, Geng1,2; Zhai, Junxiang1,2; Lu, Wangting1,2; Qin, Xiaoping1; Lin, Wenfeng3; Yi, Baolian1 |
| 刊名 | electrochimica acta
 |
| 出版日期 | 2012-04-15 |
| 卷号 | 67页码:50-54 |
| 关键词 | PEMFC Electrocatalyst Sulfur ORR |
| 英文摘要 | a quantitative research on s and so2 poisoning pt/vulcan carbon (pt/vc) catalysts for fuel cells was conducted by the three-electrode method. pt/vc electrodes were contaminated by submersion in a so2-containing solution made up of 0.2 mm na2so3 and 0.5 m h2so4 for different periods of time, and held at 0.05 v (vs. rhe) in 0.5 m h2so4 solutions in order to gain zero-valence sulfur (s-0) poisoned electrodes. the sulfur coverage of pt was determined from the total charge consumed as the sulfur was oxidized from s-0 at 0.05 v (vs. rhe) to sulfate at >1.1 v (vs. rhe). the summation of initial coverage of s-0 (theta(s)) and coverage of h (theta(h)) are approximately equal to 1 (theta(h) + theta(s) = 1) when 0.5 < theta(h) < 1, which gives an easy way to figure out the quantity of sulfur adsorbed on pt/vc. as to so2 poisoned pt/vc, the catalytic activity of oxygen reduction reaction (orr) decreases linearly with the amount of so2 adsorbed on the pt nanoparticles when 0.45 < theta(h) < 0.81. when the adsorbed so2 was reduced to s-0 the mass activity was greatly recovered, and the area specific activity was even higher than the unpoisoned pt/vc. (c) 2012 elsevier ltd. all rights reserved. |
| 类目[WOS] | electrochemistry |
| 研究领域[WOS] | electrochemistry |
| 关键词[WOS] | sulfur-dioxide contamination ; pemfc performance ; electrochemical-behavior ; oxygen reduction ; acidic medium ; electrodes ; oxidation ; recovery ; air ; platinum |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000302841600008 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/142932]  |
| 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, Fuel Cell Syst & Engn Lab, Dalian 116023, Liaoning, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Queens Univ Belfast, Sch Chem & Chem Engn, Belfast BT9 5AG, Antrim, North Ireland |
| 推荐引用方式 GB/T 7714 | Xie, Feng,Shao, Zhi-Gang,Zhang, Geng,et al. A quantitative research on S- and SO2-poisoning Pt/Vulcan carbon fuel cell catalyst[J]. electrochimica acta,2012,67:50-54. |
| APA | Xie, Feng.,Shao, Zhi-Gang.,Zhang, Geng.,Zhai, Junxiang.,Lu, Wangting.,...&Yi, Baolian.(2012).A quantitative research on S- and SO2-poisoning Pt/Vulcan carbon fuel cell catalyst.electrochimica acta,67,50-54. |
| MLA | Xie, Feng,et al."A quantitative research on S- and SO2-poisoning Pt/Vulcan carbon fuel cell catalyst".electrochimica acta 67(2012):50-54. |
入库方式： OAI收割
来源：大连化学物理研究所
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