Ni-doped TiO2 nanotubes photoanode for enhanced photoelectrochemical water splitting

被引：144

作者：

Dong, Zhenbiao ^{[1
]}

Ding, Dongyan ^{[1
]}

Li, Ting ^{[1
]}

Ning, Congqin ^{[2
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, Inst Elect Mat & Technol, Shanghai 200240, Peoples R China

[2] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2018年 / 443卷

基金：

中国国家自然科学基金;

关键词：

Ti-Ni alloys; Anodization; Ni-doped TiO2 nanotubes; Photoelectrochemical; Water splitting; PHOTOCATALYTIC ACTIVITY; VISIBLE-LIGHT; HYDROGEN EVOLUTION; ARRAYS; FABRICATION; PERFORMANCE; TITANIA; SEMICONDUCTOR; NANOPARTICLES; ARCHITECTURE;

D O I：

10.1016/j.apsusc.2018.03.031

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Photoelectrochemical (PEC) water splitting hydrogen production provides a promising way for sustainable development. In this work, we prepared Ni-doped TiO2 (Ti-Ni-O) nanotubes through anodizing different Ti-Ni alloys and further annealing them at elevated temperatures, and reported their PEC water splitting performance. It was found that Ni doping could improve light absorption and facilitate separation of photo-excited electron-hole pair. The nanotubes fabricated on Ti-1 wt.% Ni alloy and annealed at 550 degrees C exhibited better PEC water splitting performance than those on Ti-10 wt.% Ni alloy. The photoconversion efficiency was 0.67%, which was 3.35 times the photoconversion efficiency of undoped TiO2. It demonstrated that it was feasible to fabricate high-performance Ti-Ni-O nanotubes on Ti-Ni alloys and used as photoanode for improving PEC water splitting. (C) 2018 Elsevier B.V. All rights reserved.

引用

页码：321 / 328

页数：8

共 54 条

[1] Recent progress on photocatalytic and photoelectrochemical water splitting under visible light irradiation [J].