扫描电化学显微镜在光电能源研究领域的应用
Scanning Electrochemical Microscopy for Photoelectrochemical Energy Research

何辉超 ¹ Berglund Sean P ² Buddie Mullins C ² ^* 周勇 ³ 柯改利 ³ 董发勤 ³ ^*

文摘	作为一种扫描探针技术,扫描电化学显微镜(SECM)在金属防腐、材料表征、生物医学和新能源技术等领域的研究中扮演着重要角色。本文简要介绍了SECM的基本工作原理和常用的两种工作模式:反馈模式和收集/产生模式;综述了SECM在太阳能电池和太阳光解水制氢两个光电能源研究领域的应用进展,同时结合课题组的工作基础,特别是近期利用SECM筛选合适金属离子掺杂改性WO_3光阳极的工作,对SECM在筛选半导体电极材料方面的应用特点进行了实例展示介绍,最后简要总结了SECM在光电能源研究领域的发展及方向。
其他语种文摘	Since introduced by Allen J. Bard and co-workers in 1986, scanning electrochemical microscopy (SECM) has been used as a powerful scanning probe technique in wide variety of fields, such as metal anti-corrosion, material characterization, biomedicine and new energy technology. In recent years, SECM plays a more and more important role in the field of photoelectrochemical energy research. In this paper, we introduce the basic principle as well as feedback and generation-collection operation-modes of SECM and highlight some of the recent advances on SECM applied to studies of solar cell and solar water splitting. SECM coupling with light source used as an effective tool for investigating interfacial charge transfer process and the regeneration kinetics of dyes in dye-sensitized solar cell are described. Additionally, SECM used as a powerful screening technique for developing efficient photocatalysts is discussed. Furthermore, we provide a brief research example that related SECM used as a combinatorial screening technique to investigate Ⅲ A, Ⅳ A and ⅤA group metal ions as dopants for WO_3 for photoelectrochemical water oxidation. This work has been conducted in our group recently, and it is reported for the first time. The details of this work are presented, including preparing doped WO_3 arrays on FTO glass substrate, setting up SECM testing system, photoelectrochemical scanning doped WO_3 arrays, screening scan results and proving scan results on scaled-up films. The SECM screening results show that 2%~4% In~(3+) doped WO_3, 2%~4% Sn~(4+) doped WO_3 and 4%~6% Sb~(5+) doped WO_3 have higher photoelectrochemical activity than un-doped WO_3. On the basis of research results, it is concluded that SECM is a convenient and efficient screening technique, has a promising application prospect in the development of photocatalysts. Finally, we briefly describe and forecast the development trend of SECM in the field of photoelectrochemical energy research.
来源	化学进展 ,2016,28(6):908-916 【核心库】
DOI	10.7536/pc151115
关键词	扫描电化学显微镜 ; 光电能源 ; 应用
地址	1. 西南科技大学材料科学与工程学院, 四川省非金属复合与功能材料重点实验室-省部共建国家重点实验室培育基地;;固体废物处理与资源化教育部重点实验室;;广东矿物物理与材料研究开发重点实验室, 绵阳, 621010 2. 美国德克萨斯大学奥斯汀分校化学化工系, 奥斯汀, 78712 3. 西南科技大学材料科学与工程学院, 四川省非金属复合与功能材料重点实验室-省部共建国家重点实验室培育基地;;固体废物处理与资源化教育部重点实验室, 绵阳, 621010
语种	中文
文献类型	研究性论文
ISSN	1005-281X
学科	化学
基金	广东矿物物理与材料研究开发重点实验室合作研究基金 ; 西南科技大学科研基金项目 ; 国家重点基础研究规划项目(973)项目
文献收藏号	CSCD:5842098