用于高效光电化学水分解的黑色硅掺杂二氧化钛纳米管光阳极。

Black Si-doped TiO nanotube photoanode for high-efficiency photoelectrochemical water splitting.

作者信息

Dong Zhenbiao, Ding Dongyan, Li Ting, Ning Congqin

机构信息

Institute of Electronic Materials and Technology, School of Materials Science and Engineering, Shanghai Jiao Tong University Shanghai 200240 China

State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences Shanghai 200050 China.

出版信息

RSC Adv. 2018 Feb 2;8(11):5652-5660. doi: 10.1039/c8ra00021b.

Black Si-doped TiO (Ti-Si-O) nanotubes were fabricated through Zn metal reduction of the Ti-Si-O nanotubes on Ti-Si alloy in an argon atmosphere. The nanotubes were used as a photoanode for photoelectrochemical (PEC) water splitting. Both Si element and Ti/oxygen vacancies were introduced into the black Ti-Si-O nanotubes, which improved optical absorption and facilitated the separation of the photogenerated electron-hole pairs. The photoconversion efficiency could reach 1.22%, which was 7.18 times the efficiency of undoped TiO. It demonstrated that a Si element and Ti/oxygen vacancy co-doping strategy could offer an effective method for fabricating a high-performance TiO-based nanostructure photoanode for improving PEC water splitting.