Enhanced Photoelectrochemical Performance of WO3 Film Electrode under Visible Light by Electrochemical Etching Fluorination in Aqueous Solutions Containing Fluorine
文献类型：期刊论文
| 作者 | Li Wen2; Leng Wen-Hua2; Niu Zhen-Jiang1; Li Xiang2; Fei Hui2; Zhang Jian-Qing2; Cao Chu-Nan2,3 |
| 刊名 | ACTA PHYSICO-CHIMICA SINICA
 |
| 出版日期 | 2009-12-01 |
| 卷号 | 25期号:12页码:2427-2432 |
| 关键词 | WO3 Electrochemical etching Fluorination Photoelectrochemistry Visible light |
| ISSN号 | 1000-6818 |
| DOI | 10.3866/PKU.WHXB20091210 |
| 通讯作者 | Leng Wen-Hua(lengwh@zju.edu.cn) |
| 英文摘要 | A new and simple method of electrochemical etching in acidic aqueous solutions containing fluorine for the electrodeposited WO3 thin films is presented. The samples were characterized by photoelectrochemistry, scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), UV-Vis diffuse reflectance spectroscopy, and photoluminescence (PL). Results showed that the etching increased the specific surface area with a concomitant reduction in the catalyst mass and also a change in the surface status of the electrodes. This modification of the surface status improved the photoelectrochemical performance of the electrodes under visible and UV-Vis light illumination with the same mass and specific surface area. This enhancement can be ascribed to the surface fluorination of the electrodes, which result in a decrease in the surface recombination centers and a negative shift in the flatband potential. The light absorption and crystalline were found to be unchanged by etching. The etched WO3 film electrode shows excellent photoelectrochemical stability in acid solutions. This provides a novel method for increasing the photon electric conversion efficiency of WO3 thin film electrodes. |
| 资助项目 | National Natural Science Foundation of China[20373062] |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000272817500005 |
| 出版者 | PEKING UNIV PRESS |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.imr.ac.cn/handle/321006/97486]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Leng Wen-Hua |
| 作者单位 | 1.Zhejiang Normal Univ, Inst Phys Chem, Jinhua 321004, Zhejiang, Peoples R China 2.Zhejiang Univ, Dept Chem, Hangzhou 310027, Zhejiang, Peoples R China 3.Chinese Acad Sci, Inst Met Res, State Key Lab Corros & Protect Met, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li Wen,Leng Wen-Hua,Niu Zhen-Jiang,et al. Enhanced Photoelectrochemical Performance of WO3 Film Electrode under Visible Light by Electrochemical Etching Fluorination in Aqueous Solutions Containing Fluorine[J]. ACTA PHYSICO-CHIMICA SINICA,2009,25(12):2427-2432. |
| APA | Li Wen.,Leng Wen-Hua.,Niu Zhen-Jiang.,Li Xiang.,Fei Hui.,...&Cao Chu-Nan.(2009).Enhanced Photoelectrochemical Performance of WO3 Film Electrode under Visible Light by Electrochemical Etching Fluorination in Aqueous Solutions Containing Fluorine.ACTA PHYSICO-CHIMICA SINICA,25(12),2427-2432. |
| MLA | Li Wen,et al."Enhanced Photoelectrochemical Performance of WO3 Film Electrode under Visible Light by Electrochemical Etching Fluorination in Aqueous Solutions Containing Fluorine".ACTA PHYSICO-CHIMICA SINICA 25.12(2009):2427-2432. |
入库方式： OAI收割
来源：金属研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。