Incorporating nitrogen-doped graphene oxide dots with graphene oxide sheets for stable and effective hydrogen production through photocatalytic water decomposition
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- 作者：Liang-Che Chena ; Te-Fu Yeha ; Yuh-Lang Leea ; Hsisheng Tenga ; b ; hteng@mail.ncku.edu.tw" class="auth_mail" title="E-mail the corresponding author
- 关键词：Water splitting ; Graphene oxide ; Hydrogen production ; Electron transfer ; Photocatalysis
- 刊名：Applied Catalysis A: General
- 出版年：2016
- 出版时间：5 July 2016
- 年：2016
- 卷：521
- 期：Complete
- 页码：118-124
- 全文大小：2312 K
文摘
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Outstanding photocatalytic water-splitting graphene oxide dot-sheet composites based on elements C, H, O, and N.
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Graphene oxide sheets acting as an electron mediator to protect the light-absorbing dots from being attacked by reaction intermediates.
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Graphene oxide sheets acting as an electron sink to facilitate charge separation in the light-absorbing dots.
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An apparent quantum yield of 16.0% in H2 production achieved by the dot-sheet composites under 420-nm light irradiation.
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The dot-sheet composites steadily catalyzing H2 evolution from a triethanolamine aqueous solution for 4 days with little activity decay.