Synthesis and electrochemical analysis of novel IrO2 nanoparticle catalysts supported on carbon nanotube for oxygen evolution reaction

被引：63

作者：

Badam, Rajashekar ^{[1
]}

Hara, Masanori ^{[1
]}

Huang, Hsin-Hui ^{[1
]}

Yoshimura, Masamichi ^{[1
]}

机构：

[1] Toyota Technol Inst, Tempaku Ku, 2-12-1 Hisakata, Nagoya, Aichi 4688511, Japan

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2018年 / 43卷 / 39期

关键词：

Water electrolysis; Oxygen evolution reaction; Iridium oxide; Carbon nanotube; IRIDIUM OXIDE; WATER OXIDATION; HIGH-PERFORMANCE; ELECTROCATALYTIC OXYGEN; RUO2; NANOPARTICLES; FACILE SYNTHESIS; NANOSIZED IROX; METAL OXIDES; ELECTROLYSIS; ELECTRODES;

D O I：

10.1016/j.ijhydene.2018.08.034

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：

In this paper, we report synthesis of novel nanoparticle catalyst of iridium oxide supported on carbon nanotube (IrO2/CNT) and characterization of activity and durability for oxygen evolution reaction (OER). The IrO2/CNT catalyst was prepared from iridium complex and COOH-CNT by hydrothermal method. The synthesized IrO2/CNT catalysts was characterized by transmission electron microscopy, x-ray diffraction, Raman microscopy, Fourier transfer-infrared spectroscopy, x-ray photoelectron spectroscopy, thermogravimetric analysis and electrochemical methods. The average particle size of the IrO2 particles on CNT is 1.7 nm and the loading amount of IrO2 is 4 wt%. The XPS measurement reveals that Ir complex was completely converted to iridium oxide through hydrothermal treatment. The IrO2/CNT catalyst showed sufficient performance for OER activity and durability in sulfuric acid solution. Our results indicate that IrO2/CNT is one of the prospective candidate catalysts for water electrolyzer. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：18095 / 18104

页数：10

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