Defect engineering of two-dimensional WO₃ nanosheets for enhanced electrochromism and photoeletrochemical performance

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• 作者：Xiaofang Zhou ; Xiaoli Zheng ; Bo Yan ; Tao Xu ; Qun Xu ; ^{qunxu@zzu.edu.cn}
• 关键词：Oxygen vacancies ; WO3 ultrathin nanosheets ; Defect engineering ; Electrochromism ; Photocatalytic performance
• 刊名：Applied Surface Science
• 出版年：2017
• 出版时间：1 April 2017
• 年：2017
• 卷：400
• 期：Complete
• 页码：57-63
• 全文大小：2362 K
• 卷排序：400

文摘

We establish a facile strategy by solvothermal reaction and hydrogenation to synthesize 2D WO3 ultrathin nanosheets with abundant oxygen vacancies. We find that the hydrogenated WO3 ultrathin nanosheets exhibit outstanding electrochromism properties. Moreover, the hydrogenated WO3 nanosheets also exhibit remarkable photocatalytic performance. The outstanding electrochromism and photoelectrochemical performances are mainly due to increased oxygen vacancies and narrowed band gap.