Ni-doped TiO2 nanotubes photoanode for enhanced photoelectrochemical water splitting
Ni-doped TiO2 nanotubes photoanode for enhanced photoelectrochemical water splitting
复制标题
用于增强光电化学水分解的 Ni 掺杂 TiO2 纳米管光电阳极
DOI：
10.1016/j.apsusc.2018.03.031
复制
发表时间：
2018-06-15
影响因子：
6.7
通讯作者：
Ning, Congqin
中科院分区：
文献类型：
--
作者：
Dong, Zhenbiao;Ding, Dongyan;Ning, Congqin
光电化学（PEC）分解水制氢为可持续发展提供了一条很有前途的途径。本工作通过阳极氧化不同的Ti-Ni合金并进一步高温退火制备了Ni掺杂的TiO 2（Ti-Ni-O）纳米管，并报道了它们的PEC水分解性能。结果表明，Ni掺杂可以改善光吸收，促进光激发电子-空穴对的分离。在Ti-1 wt.%上制造的纳米管Ni合金和550 ℃退火的PEC水裂解性能比Ti-10 wt.%镍合金。光转换效率为0.67%，是未掺杂TiO 2光转换效率的3.35倍。结果表明，在Ti-Ni合金上制备高性能Ti-Ni-O纳米管，并将其作为光电阳极用于提高PEC水裂解率是可行的。(C)2018 Elsevier B. V.版权所有。
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.