https://scholars.lib.ntu.edu.tw/handle/123456789/628178
標題: | CoSe2 Embedded in C3N4: An Efficient Photocathode for Photoelectrochemical Water Splitting | 作者: | Basu, Mrinmoyee Zhang, Zhi-Wei CHIH-JUNG CHEN Lu, Tzu-Hsiang Hu, Shu-Fen Liu, Ru-Shi |
關鍵字: | C3N4−CoSe2; heterostructure; hydrogen evolution; nanorod; photocathode | 公開日期: | 12-十月-2016 | 出版社: | AMER CHEMICAL SOC | 卷: | 8 | 期: | 40 | 起(迄)頁: | 26690 | 來源出版物: | ACS applied materials & interfaces | 摘要: | An efficient H2 evolution catalyst is developed by grafting CoSe2 nanorods into C3N4 nanosheets. The as-obtained C3N4-CoSe2 heterostructure can show excellent performance in H2 evolution with outstanding durability. To generate phatocathode for photoelectrochemical water splitting CoSe2 grafted in C3N4 was decorated on the top of p-Si microwires (MWs). p-Si/C3N4-CoSe2 heterostructure can work as an efficient photocathode material for solar H2 production in PEC water splitting. In 0.5 M H2SO4, p-Si/C3N4-CoSe2 can afford photocurrent density -4.89 mA/cm2 at "0" V vs RHE and it can efficiently work for 3.5 h under visible light. Superior activity of C3N4-CoSe2 compared to CoSe2 toward H2 evolution is explained with the help of impedance spectroscopy. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/628178 | ISSN: | 1944-8244 | DOI: | 10.1021/acsami.6b06520 |
顯示於: | 重點科技研究學院 |
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