Electrocatalyst of RuO2 decorating TiO2 nanowire arrays for acidic oxygen evolution

被引：17
作者：
Liu, Yueren [1 ]
Duan, Tigang [1 ]
Xu, Likun [1 ]
Gao, Xianze [1 ,2 ]
Xue, Lili [2 ]
Xin, Yonglei [1 ]
Ma, Li [1 ]
Huang, Guosheng [1 ]
Liu, Tengteng [1 ]
机构：
[1] Luoyang Ship Mat Res Inst LSMRI, State Key Lab Marine Corros & Protect, Qingdao 266237, Peoples R China
[2] Harbin Engn Univ, Coll Mat Sci & Chem Engn, Harbin 150001, Peoples R China
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2023年 / 48卷 / 29期
关键词：
RuO2; TiO2; Nanowire; Cyclic voltammetry; Electrodeposition; Oxygen evolution reaction; CHLORINE EVOLUTION; HIGH-PERFORMANCE; BIFUNCTIONAL ELECTROCATALYST; HIERARCHICAL NANOSTRUCTURE; NANOTUBE ARRAYS; HYDROGEN; EFFICIENT; ANODES; COST; ELECTRODES;
D O I：
10.1016/j.ijhydene.2022.12.051
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：
Oxygen evolution reaction (OER) at the anode limits the efficiency of hydrogen produc-tion from water electrolysis substantially. A novel electrocatalyst of RuO2 decorating TiO2 nanowire arrays for OER was successfully prepared using a cyclic voltammetric method with electrodeposition of RuO2 nanoparticles on the TiO2 nanowire (TNW) ar-rays synthesized hydrothermally. Even though the electrodes with the composite elec-trocatalyst have a lower loading of RuO2, they have higher electrocatalytic activity and stability for acidic oxygen evolution than the Ti/RuO2 electrode prepared by conven-tional thermal decomposition method. The core-shell structure of the TNW@RuO2 electrocatalyst not only increases the specific surface area of the electrodes, but also inhibits the adverse effect of the poor conductivity of TiO2. This novel OER electrocatalyst can improve the efficiency and reduce the cost of hydrogen production from electrolytic water splitting.(c) 2022 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：10737 / 10754
页数：18
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