Kinetic investigation of oxygen reduction reaction in sub-freezing acid media
文献类型：期刊论文
| 作者 | Song, Wei1,2; Hou, Junbo1,2; Yu, Hongmei1; Hao, Lixing1,2; Shao, Zhigang1; Yi, Baolian1 |
| 刊名 | international journal of hydrogen energy
 |
| 出版日期 | 2008-09-01 |
| 卷号 | 33期号:18页码:4844-4848 |
| 关键词 | Proton exchange membrane (PEM) fuel cell Pt/C catalyst Oxygen reduction reaction (ORR) Subzero Cold start |
| 产权排序 | 1;1 |
| 通讯作者 | 俞红梅 |
| 英文摘要 | a three-electrode system with 2 m h(2)so(4) as the electrolyte was developed to investigate the oxygen reduction kinetics on pt/c catalyst at sub-freezing temperatures. this system successfully avoided the ice formation above -10 degrees c. furthermore, the influence of different membrane electrode assembly (mea) status, i.e. the membrane hydration and the electrode structure, on the kinetic results in a sub-freezing fuel cell was diminished in this method. by cyclic voltammetry (cv) test, the electrochemical active surface area (eca) of pvc catalyst at sub-freezing temperatures was obtained. results showed that the eca at sub-freezing temperatures was almost the same as that at room temperature, either the h-desorption or the h-adsorption process at subzero temperatures still took place in the same way. according to the analysis of the linear scan voltammetry (lsv), the kinetics of oxygen reduction on pt/c catalyst at sub-freezing temperatures was explored. the limiting current density decreased as temperature dropped and the exchange current density at subzero temperatures still obeyed the arrhenius theory. (c) 2008 international association for hydrogen energy. published by elsevier ltd. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | chemistry, physical ; electrochemistry ; energy & fuels |
| 研究领域[WOS] | chemistry ; electrochemistry ; energy & fuels |
| 关键词[WOS] | pem fuel-cell ; cold start ; repetitively brought ; electrode-kinetics ; o-2 reduction ; temperature ; performance ; platinum ; dependence ; interface |
| 收录类别 | SCI |
| 原文出处 | true |
| 语种 | 英语 |
| WOS记录号 | WOS:000259894000016 |
| 公开日期 | 2010-11-30 |
| 源URL | [http://159.226.238.44/handle/321008/100527]  |
| 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 Fuel Cells, 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 | Song, Wei,Hou, Junbo,Yu, Hongmei,et al. Kinetic investigation of oxygen reduction reaction in sub-freezing acid media[J]. international journal of hydrogen energy,2008,33(18):4844-4848. |
| APA | Song, Wei,Hou, Junbo,Yu, Hongmei,Hao, Lixing,Shao, Zhigang,&Yi, Baolian.(2008).Kinetic investigation of oxygen reduction reaction in sub-freezing acid media.international journal of hydrogen energy,33(18),4844-4848. |
| MLA | Song, Wei,et al."Kinetic investigation of oxygen reduction reaction in sub-freezing acid media".international journal of hydrogen energy 33.18(2008):4844-4848. |
入库方式： OAI收割
来源：大连化学物理研究所
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