Effect of Polarization on the O-2(g), Au/YSZ Electrode System
文献类型：期刊论文
| 作者 | Wang, Guangwei1,2; Li, Heping1; Xu, Yuanjian2; Xu, Liping1; Zhang, Lei1,3
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| 刊名 | INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
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| 出版日期 | 2013-05-01 |
| 卷号 | 8期号:5页码:6579-6590 |
| 关键词 | Au/YSZ electrode polarization chronoamperometry chronopotentiometry |
| ISSN号 | 1452-3981 |
| 通讯作者 | Wang, GW (reprint author), Chinese Acad Sci, Inst Geochem, Lab High Temp & High Pressure Study Earths Interi, Guiyang 550002, Peoples R China. |
| 英文摘要 | The oxygen electrode reaction at the interface gold/yttria stabilized zirconia (YSZ) was investigated at moderate temperatures of 500 and 600 degrees C under ambient air condition, with emphasis put on the comparative analysis for effect of anodic and cathodic polarization on the electrode. Generally, at the temperature of 500 degrees C, slow monotonous alterations of the absolute currents or potentials result from polarizations were observed, but the response curves exihibited obvious fluctuations at 600 degrees C, which may be ascribed to the progressive transportation processes of the electro-active species in the electrode system. Due to the relatively weak adsorption ability of Au electrode interfaced with YSZ, the oxygen atoms induced by anodic polarization left toward the ambient air rapidly, which consequently led to the improved activity for oxidation reactions. However, while the electrode was under cathodic bias, the oxygen reduced mainly originated from the ambient air, and had to reach the reaction sites located at the two or three boundary interfaces through series of successive processes such as disassociation, adsorption and diffusion, which result in the low transporting efficiency of the active agencies beyond all doubt and consequently decreased activity for reduction reactions at the electrode system. The remarkable enhancement of electrode catalytic activity was only observed from the potentiostatic polarization experiments at 600 degrees C and with anodic polarization, perhaps due to the short polarization times and relatively low experiment temperatures. |
| 资助项目 | National Natural Science Foundation of China[41203047] ; National High-Tech Research and Development Program of China[2010AA09Z207] ; Large-scale Scientific Apparatus Development Program of Chinese Academy of Sciences[YZ200720] |
| WOS研究方向 | Electrochemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000319861000050 |
| 出版者 | ESG |
| 源URL | [http://119.78.100.138/handle/2HOD01W0/613]  |
| 专题 | 中国科学院重庆绿色智能技术研究院 |
| 通讯作者 | Wang, Guangwei |
| 作者单位 | 1.Chinese Acad Sci, Inst Geochem, Lab High Temp & High Pressure Study Earths Interi, Guiyang 550002, Peoples R China 2.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 401122, Peoples R China 3.Inst Geol Surveying & Mapping Anhui Prov, Hefei 230022, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Guangwei,Li, Heping,Xu, Yuanjian,et al. Effect of Polarization on the O-2(g), Au/YSZ Electrode System[J]. INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,2013,8(5):6579-6590. |
| APA | Wang, Guangwei,Li, Heping,Xu, Yuanjian,Xu, Liping,&Zhang, Lei.(2013).Effect of Polarization on the O-2(g), Au/YSZ Electrode System.INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,8(5),6579-6590. |
| MLA | Wang, Guangwei,et al."Effect of Polarization on the O-2(g), Au/YSZ Electrode System".INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE 8.5(2013):6579-6590. |
入库方式： OAI收割
来源：重庆绿色智能技术研究院
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