- Enhancement of solar hydrogen evolution from water by surface modification with CdS and TiO2 on porous CuInS2 photocathodes prepared by an electrodeposition-sulfurization method.
Enhancement of solar hydrogen evolution from water by surface modification with CdS and TiO2 on porous CuInS2 photocathodes prepared by an electrodeposition-sulfurization method.
Angewandte Chemie (International ed. in English) (2014-09-12)
Jiao Zhao, Tsutomu Minegishi, Li Zhang, Miao Zhong, Gunawan, Mamiko Nakabayashi, Guijun Ma, Takashi Hisatomi, Masao Katayama, Shigeru Ikeda, Naoya Shibata, Taro Yamada, Kazunari Domen
PMID25209028
ABSTRACT
Porous films of p-type CuInS2, prepared by sulfurization of electrodeposited metals, are surface-modified with thin layers of CdS and TiO2. This specific porous electrode evolved H2 from photoelectrochemical water reduction under simulated sunlight. Modification with thin n-type CdS and TiO2 layers significantly increased the cathodic photocurrent and onset potential through the formation of a p-n junction on the surface. The modified photocathodes showed a relatively high efficiency and stable H2 production under the present reaction conditions.
MATERIALS
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