A novel photoelectrochemical cell with self-organized TiO2 nanotubes as photoanodes for hydrogen generation

被引：49
|
作者：
Li, Yongkun [1 ,2 ]
Yu, Hongmei [1 ]
Song, Wei [1 ]
Li, Guangfu [1 ,2 ]
Yi, Baolian [1 ]
Shao, Zhigang [1 ]
机构：
[1] Chinese Acad Sci, Dalian Inst Chem Phys, Lab Fuel Cells, Dalian 116023, Peoples R China
[2] Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2011年 / 36卷 / 22期
关键词：
Photoelectrochemical cell; Electrochemical anodization; TiO2; nanotubes; Water splitting; Hydrogen production; NANOWIRE ARRAYS; WATER; FILMS;
D O I：
10.1016/j.ijhydene.2011.08.026
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：
A photoelectrochemical (PEC) cell with an innovative design for hydrogen generation via photoelectrocatalytic water splitting is proposed and investigated. It consisted of a TiO2 nanotube photoanode, a Pt/C cathode and a commercial asbestos diaphragm. The PEC could generate hydrogen under ultraviolet (UV) light-excitation with applied bias in KOH solution. The Ti mesh was used as the substrate to synthesize the self-organized TiO2 nanotubular array layers. The effect of the morphology of the nanotubular array layers on the photovoltaic performances was investigated. When TiO2 photocatalyst was irradiated with UV-excitation, it prompted the water splitting under applied bias (0.6 V vs. Normal Hydrogen Electrode, NHE.). Photocurrent generation of 0.58 mA/cm(2) under UV-light irradiation showed good performance on hydrogen production. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：14374 / 14380
页数：7
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