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题名: Graphdiyne: A Metal-Free Material as Hole Transfer Layer To Fabricate Quantum Dot-Sensitized Photocathodes for Hydrogen Production
作者: Li, Jian1; Gao, Xin2; Liu, Bin1; Feng, Qingliang2; Li, Xu-Bing1; Huang, Mao-Yong1; Liu, Zhongfan2; Zhang, Jin2; Tung, Chen-Ho1; Wu, Li-Zhu1
刊名: JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
发表日期: 2016-03-30
卷: 138, 期:12, 页:3954-3957
收录类别: SCI
英文摘要: Graphdiyne (GDY), a novel large pi-conjugated carbon material, for the first time, is introduced as the hole transfer layer into a photoelectrochemical water splitting. cell (PEC). Raman and ultraviolet photoelectron spectroscopic studies indicate the existence of relatively strong pi-pi interactions between GDY and 4-mercaptopyridine surface-functionalized CdSe quantum dots, beneficial to the hole transportation and enhancement of the photocurrent performance. Upon exposure to a Xe lamp, the integrated photocathode produces a current density of nearly -70 mu A cm(-2) at a potential of 0 V vs NHE in neutral aqueous solution. Simultaneously, the photocathode evolves H-2 with 90 +/- 5% faradic efficiency over three times and exhibits good stability within 12 h. All of the results indicate that GDY is a promising hole transfer material to fabricate a PEC device for water splitting by solar energy.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.iccas.ac.cn/handle/121111/35994
Appears in Collections:光化学实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Tech Inst Phys & Chem, Key Lab Photochem Convers & Optoelect Mat, Beijing 100190, Peoples R China
2.Peking Univ, Coll Chem & Mol Engn, Beijing Natl Lab Mol Sci, Beijing Sci & Engn Ctr Nanocarbons,Ctr Nanochem, Beijing 100871, Peoples R China
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