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  • 颜洋 ( 副教授 )

    的个人主页 http://faculty.dlut.edu.cn/2014011146/zh_CN/index.htm

  •   副教授   博士生导师   硕士生导师
论文成果 当前位置: 中文主页 >> 科学研究 >> 论文成果
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.

 

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