Department of Chemical System Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656 (Japan); Japan Technological Research Association of Artificial Photosynthetic Chemical Process (ARPChem), 5-1-5 Kashiwanoha, Kashiwa-shi, Chiba 277-8589 (Japan); State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023 (China).
Angew Chem Int Ed Engl. 2014 Oct 27;53(44):11808-12. doi: 10.1002/anie.201406483. Epub 2014 Sep 10.
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.
多孔 p 型 CuInS2 薄膜是通过电沉积金属的硫化制备的，并用 CdS 和 TiO2 的薄层进行表面修饰。这种特殊的多孔电极在模拟太阳光下通过光电化学水还原产生 H2。通过在表面形成 p-n 结，用薄的 n 型 CdS 和 TiO2 层修饰可以显著增加阴极光电流和起始电位。在目前的反应条件下，修饰后的光电极表现出相对较高的效率和稳定的 H2 产生。
