期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 37, 期 22, 页码 16786-16794出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2012.08.087
关键词
Hydrogenation; Iridium-ruthenium oxide; Oxygen evolution reaction; Solid polymer electrolyte water electrolysis; Template synthesis
资金
- National High Technology Research and Development Program of China (863 Program) [2011AA050705]
- Natural Science Foundation of China [20876154, 20636060, 20936008, 21176234]
IrxRu1-xO2(1 >= x >= 0) with nanorod structure were successfully synthesized by employed pre-filling the Ir and/or Ru guest species into the peripheral-pore of NH2-modified as-synthesized SBA-15 and explored as electrocatalyst for oxygen evolution reaction (OER) in water electrolyzers. Various physicochemical parameters for zeolite template and/or IrxRu1-xO2 were obtained by SEM, TEM, XRD, EDX and N-2 gas absorption/desorption measurements. The morphology for prepared IrxRu1-xO2 samples with individual and/or cluster nanorods was changed with the component difference. Cyclic voltammetry, linear sweep voltammetry, electrochemical impedance spectroscopy, steady state polarization curves and stability tests were performed to investigate the catalytic activity and stability of these electrocatalysts for OER. The cell with catalyst RuO2 showed best catalytic performance with the lowest onset potential (1.374 V at 10 mA cm(-2)), which may be ascribed to regular nanoclusters and larger outer active surface area. Meanwhile, the cell stability tests suggested that the addition of IrO2 in IrxRu1-xO2 improved the stability of the RuO2 catalyst. Copyright (c) 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据