史彦涛

个人信息Personal Information

教授

博士生导师

硕士生导师

性别:男

毕业院校:清华大学

学位:博士

所在单位:化学学院

学科:物理化学. 材料物理与化学. 无机化学

办公地点:西部校区化工综合楼C313

联系方式:0411-84986237

电子邮箱:shiyantao@dlut.edu.cn

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High electrocatalytic activity of W18O49 nanowires for cobalt complex and ferrocenium redox mediators

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论文类型:期刊论文

发表时间:2014-01-01

发表刊物:RSC ADVANCES

收录刊物:SCIE、EI、Scopus

卷号:4

期号:79

页面范围:42190-42196

ISSN号:2046-2069

摘要:Understanding the relationship between the surface of electrocatalysts and the catalytic properties of different redox mediators is beneficial to the rational design of efficient catalysts for use in practical catalytic processes. Previous research observed that surface oxygen vacancies (SOVs) affected the catalytic activity for triiodide/iodide (I-/I-3(-)) and T-2/T- (T- = 5-mercapto-1-methyltetrazole ion) redox mediators in dye-sensitized solar cells (DSCs). However, the electrocatalytic properties of larger and steric metal complex redox mediators (cobalt complex, ferrocenium) on SOVs of W18O49 are unclear and have never been reported. In this study, we investigated the electrocatalytic properties of cobalt complex and ferrocenium redox mediators on SOVs of W18O49. Results indicated that the catalytic performance of W18O49 nanowires (NWs) as a counter electrode for cobalt complex and ferrocenium redox mediators was comparable to that of Pt. After SOVs filling, the reduction reaction activity of the cobalt complex decreases slightly whereas it increases slightly for ferrocenium. These findings enrich our understanding of heterogeneous catalytic reactions on the surface of transition metal complexes for different redox mediators.