Electrodeposited p-type Cu2O as photocatalyst for H2 evolution from water reduction in the presence of WO3

Che Chia Hu, Jun Nan Nian, Hsisheng Teng

研究成果: Article同行評審

183 引文 斯高帕斯(Scopus)

摘要

Different p-type Cu2O powders were prepared from electrodeposition and subjected to analysis of their photocatalytic activity in water reduction. The electrodeposited Cu2O powders were obtained by scraping the deposited films off the substrate. Under illumination the Cu2O powders alone were not able to catalyze H2 generation from water reduction. However, these Cu2O powders exhibited photocatalytic activity in H2 generation when they were coupled with n-type WO3 in suspensions. The coupling was made to avoid back reactions of the photo-induced charges. The electrodeposited Cu2O powders showed higher photocatalytic activity than a commercially available Cu2O powder. The suspension containing electrodeposited Cu2O with a strong [1 1 1] orientation gave a larger amount of H2 evolution than that containing Cu2O with a [1 1 0] orientation. Appropriate crystalline-texture tuning, as well as charge delocalization promotion, is looked to as the key issue for efficient H2 generation from water reduction over p-type Cu2O photocatalysts.

原文English
頁(從 - 到)1071-1076
頁數6
期刊Solar Energy Materials and Solar Cells
92
發行號9
DOIs
出版狀態Published - 2008 九月

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 可再生能源、永續發展與環境
  • 表面、塗料和薄膜

指紋

深入研究「Electrodeposited p-type Cu<sub>2</sub>O as photocatalyst for H<sub>2</sub> evolution from water reduction in the presence of WO<sub>3</sub>」主題。共同形成了獨特的指紋。

引用此