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个人信息Personal Information
教授
博士生导师
硕士生导师
任职 : 现任大连理工大学化工学院教授、博士生导师。同时担任“膜科学与技术”期刊编委，膜学会理事（筹），膜工业协会工程与应用专业委员会及特种分离膜专业委员会委员、中国兵工学会活性炭测试分析与应用研究分会委员等。
性别：男
毕业院校：大连工学院
学位：硕士
所在单位：化工学院
学科：化学工艺. 膜科学与技术. 功能材料化学与化工
办公地点：化工综合楼A201
联系方式：微信/电话 13500711370
电子邮箱：wangth@dlut.edu.cn
In-situ surface selective removal: An efficient way to prepare water oxidation catalyst
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论文类型：期刊论文
发表时间：2019-06-07
发表刊物：INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
收录刊物：SCIE、EI
卷号：44
期号：29
页面范围：14955-14967
ISSN号：0360-3199
关键字：Surface selective removal; Nickel tin; Water oxidation
摘要：The design of cost-efficient earth-abundant catalysts with superior performance for oxygen evolution reaction (OER) is extremely important for future renewable energy production. The synthesis of high-surface-area catalysts with high intrinsic activity remains challenging. In this work, in-situ surface selective removal method by electrochemical oxidation is used to synthesize nickel (oxy)hydroxide covered Ni3Sn2 supported on carbon nanotubes (Ni3Sn2@NiOxHy/CNT), which exhibits 10, 100, 200 and 300 mA cm(-2) at over-potential of 250, 317, 329 and 335 mV in OER, respectively. In-situ surface selective removal of Sn from the crystal lattices and oxidation of Ni under anodic oxidation provide highly active amorphous NiOxHy with abundant surface defects, leading to the high apparent activity (current density) and intrinsic activity (TOF) of the Ni3Sn2@NiOxHy/CNT. This work develops a general method to synthesize high-surface-area water oxidation catalysts, which can be used to prepare a series of catalysts for oxygen evolution reaction in the near future. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.