Comparison of the Oxygen Reduction Reaction between NaOH and KOH Solutions on a Pt Electrode: The Electrolyte-Dependent Effect
文献类型:期刊论文
作者 | Jin, Wei1,2; Du, Hao1; Zheng, Shili1; Xu, Hongbin1; Zhang, Yi1 |
刊名 | JOURNAL OF PHYSICAL CHEMISTRY B
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出版日期 | 2010-05-20 |
卷号 | 114期号:19页码:6542-6548 |
关键词 | diffusion coefficient reversible potentials alkaline electrolyte activation-energies surface-properties superoxide anion molecular-oxygen water activation solubility platinum |
ISSN号 | 1520-6106 |
其他题名 | J. Phys. Chem. B |
中文摘要 | The oxygen reduction reaction (ORR) on a polycrystalline Pt surface was studied using cyclic voltammetry techniques, and the influence of reaction media on the ORR is examined by comparing the ORR in NaOH and KOH solutions with concentration ranging from 0.5 to 14 M at 298 K. The results show that, in NaOH and KOH solutions, the ORR, a quasi-reversible diffusion-controlled reaction, is largely dependent on the electrolyte conditions, and KOH solutions are superior to NaOH solutions for the ORR process in both thermodynamic and kinetic consideration. As the alkaline concentration increases, the ORR performance frustrates, and the protonation of superoxide is suppressed; thus, the ORR shifts from a 2e reduction pathway to a le reduction pathway in both solutions. |
英文摘要 | The oxygen reduction reaction (ORR) on a polycrystalline Pt surface was studied using cyclic voltammetry techniques, and the influence of reaction media on the ORR is examined by comparing the ORR in NaOH and KOH solutions with concentration ranging from 0.5 to 14 M at 298 K. The results show that, in NaOH and KOH solutions, the ORR, a quasi-reversible diffusion-controlled reaction, is largely dependent on the electrolyte conditions, and KOH solutions are superior to NaOH solutions for the ORR process in both thermodynamic and kinetic consideration. As the alkaline concentration increases, the ORR performance frustrates, and the protonation of superoxide is suppressed; thus, the ORR shifts from a 2e reduction pathway to a le reduction pathway in both solutions. |
WOS标题词 | Science & Technology ; Physical Sciences |
类目[WOS] | Chemistry, Physical |
研究领域[WOS] | Chemistry |
关键词[WOS] | DIFFUSION COEFFICIENT ; REVERSIBLE POTENTIALS ; ALKALINE ELECTROLYTE ; ACTIVATION-ENERGIES ; SURFACE-PROPERTIES ; SUPEROXIDE ANION ; MOLECULAR-OXYGEN ; WATER ACTIVATION ; SOLUBILITY ; PLATINUM |
收录类别 | SCI |
原文出处 | |
语种 | 英语 |
WOS记录号 | WOS:000277499700036 |
公开日期 | 2013-11-28 |
版本 | 出版稿 |
源URL | [http://ir.ipe.ac.cn/handle/122111/6284] ![]() |
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, Key Lab Green Proc & Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Jin, Wei,Du, Hao,Zheng, Shili,et al. Comparison of the Oxygen Reduction Reaction between NaOH and KOH Solutions on a Pt Electrode: The Electrolyte-Dependent Effect[J]. JOURNAL OF PHYSICAL CHEMISTRY B,2010,114(19):6542-6548. |
APA | Jin, Wei,Du, Hao,Zheng, Shili,Xu, Hongbin,&Zhang, Yi.(2010).Comparison of the Oxygen Reduction Reaction between NaOH and KOH Solutions on a Pt Electrode: The Electrolyte-Dependent Effect.JOURNAL OF PHYSICAL CHEMISTRY B,114(19),6542-6548. |
MLA | Jin, Wei,et al."Comparison of the Oxygen Reduction Reaction between NaOH and KOH Solutions on a Pt Electrode: The Electrolyte-Dependent Effect".JOURNAL OF PHYSICAL CHEMISTRY B 114.19(2010):6542-6548. |
入库方式: OAI收割
来源:过程工程研究所
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