Cover Picture: Nature of Conduction Band Tailing in Hydrogenated Titanium Dioxide for Photocatalytic Hydrogen Evolution (ChemCatChem 12/2016)

详细信息    查看全文

• 作者：Jiawei Xue ; Xiaodi Zhu ; Dr. Yi Zhang ; Dr. Wendong Wang ; Wei Xie ; Jilong Zhou ; Prof. Dr. Jun Bao ; Ying Luo ; Xiang Gao ; Dr. Yong Wang ; Dr. Ling-yun Jang ; Prof. Dr. Song Sun and Prof. Dr. Chen Gao
• 刊名：ChemCatChem
• 出版年：2016
• 出版时间：June 21, 2016
• 年：2016
• 卷：8
• 期：12
• 页码：1991
• 全文大小：2508K
• ISSN：1867-3899

文摘

The Front Cover shows that hydrogenated TiO₂ with appropriate hydrogenation time exhibits much higher photocatalytic H₂ evolution activity than TiO₂ with excessive hydrogenation degree. This is attributed to the different roles of oxygen vacancies on the surface and in the bulk. In their Communication, J. Xue et al. report the nature of conduction band tailing in hydrogenated TiO₂, involving effects of oxygen vacancies. They show that by controlling hydrogenation time, the tailing degree can be well controlled to meet the demand of the highest H₂ evolution. This work promotes a better understanding of possible negative consequence in photocatalytic H₂ evolution of hydrogenated semiconductors apart from the positive effect on visible-light responsive ability. More information can be found in the Communication by J. Xue et al. on page 2010 in Issue 12, 2016 (DOI: 10.1002/cctc.201600237).