史彦涛

个人信息Personal Information

教授

博士生导师

硕士生导师

性别:男

毕业院校:清华大学

学位:博士

所在单位:化学学院

学科:物理化学. 材料物理与化学. 无机化学

办公地点:西部校区化工综合楼C313

联系方式:0411-84986237

电子邮箱:shiyantao@dlut.edu.cn

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Micelle-template synthesis of a 3D porous FeNi alloy and nitrogen-codoped carbon material as a bifunctional oxygen electrocatalyst

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论文类型:期刊论文

发表时间:2020-01-20

发表刊物:ELECTROCHIMICA ACTA

收录刊物:EI、SCIE

卷号:331

ISSN号:0013-4686

关键字:Oxygen reduction and evolution reaction; FeNi alloy nanoparticles; N-doped carbon electrocatalyst; Surfactant and soft template

摘要:The sluggish kinetics of oxygen reduction reaction and oxygen evolution reaction (ORR/OER) are the key scientific issues that need to be addressed for the application of renewable energy technologies. Rational coupling transition metal with porous heteroatom-doped carbon is extensively investigated as an efficient strategy to achieve high performance ORR/OER nonprecious metal electocatalysts. In this study, a FeNi alloy coated with N-doped carbon material (namely FeNi/NC) was designed by using triblock copolymer Pluronic F127 as a surfactant co-assembly with g-C3N4. This strategy enabled FeNi/NC possessing a high BET surface area in terms of three-dimensional hierarchical porous structure together with abundant defect sites. The optimized FeNi/NC catalyst displays an excellent oxygen electrode electro-catalytic activity with a potential gap Delta E of 0.77 V in alkaline media which substantially outperformed benchmark Pt/C + RuO2 (Delta E = 0.80 V). Furthermore, it shows almost no decay after long-time cycling tests for ORR/OER. The excellent catalytic performance along with the low cost for FeNi/NC catalyst makes it possible to commercialize the renewable energy devices. (c) 2019 Elsevier Ltd. All rights reserved.