Transition Metal Nitride Coated with Atomic Layers of Pt as a Low-Cost, Highly Stable Electrocatalyst for the Oxygen Reduction Reaction

Journal of the American Chemical Society
Xinlong TianRadoslav R Adzic

Abstract

The main challenges to the commercial viability of polymer electrolyte membrane fuel cells are (i) the high cost associated with using large amounts of Pt in fuel cell cathodes to compensate for the sluggish kinetics of the oxygen reduction reaction, (ii) catalyst degradation, and (iii) carbon-support corrosion. To address these obstacles, our group has focused on robust, carbon-free transition metal nitride materials with low Pt content that exhibit tunable physical and catalytic properties. Here, we report on the high performance of a novel catalyst with low Pt content, prepared by placing several layers of Pt atoms on nanoparticles of titanium nickel binary nitride. For the ORR, the catalyst exhibited a more than 400% and 200% increase in mass activity and specific activity, respectively, compared with the commercial Pt/C catalyst. It also showed excellent stability/durability, experiencing only a slight performance loss after 10,000 potential cycles, while TEM results showed its structure had remained intact. The catalyst's outstanding performance may have resulted from the ultrahigh dispersion of Pt (several atomic layers coated on the nitride nanoparticles), and the excellent stability/durability may have been due to the ...Continue Reading

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Citations

Mar 1, 2017·ACS Applied Materials & Interfaces·Yijie DengShijun Liao
Apr 27, 2017·Langmuir : the ACS Journal of Surfaces and Colloids·Jingkun LiSanjeev Mukerjee
Jun 3, 2017·Chemical Communications : Chem Comm·Kevin E FritzJin Suntivich
Oct 21, 2016·Angewandte Chemie·Bingqing ZhangCan Li
May 26, 2017·Angewandte Chemie·Aaron GargYuriy Román-Leshkov
Feb 27, 2018·Chemical Society Reviews·Ritesh UppuluriThomas E Mallouk
Dec 19, 2018·Advanced Materials·Meiling LiuYu Huang
Nov 30, 2018·Chemistry : a European Journal·Jingjie GeYadong Li
Sep 3, 2019·Angewandte Chemie·Guanzhi WangYang Yang
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Mar 20, 2019·Dalton Transactions : an International Journal of Inorganic Chemistry·Kentaro IchihashiMizuki Tada
Jan 1, 2016·Nanomaterials·Giorgio ErcolanoJacques Rozière
Dec 10, 2020·Chemical Society Reviews·Hao WangJong-Min Lee
Apr 30, 2021·Journal of the American Chemical Society·Liang HuangShaojun Dong
Jun 2, 2018·ACS Applied Materials & Interfaces·Jiajun WangChang-Jun Liu
Oct 4, 2019·Chemical Reviews·Chenlu XiePeidong Yang
Mar 5, 2020·ACS Applied Materials & Interfaces·Jun-Hui YuanXiao Cheng Zeng
Jan 27, 2019·Langmuir : the ACS Journal of Surfaces and Colloids·Jing LiuShichun Mu
Nov 11, 2020·Accounts of Chemical Research·Zhi-Peng WuChuan-Jian Zhong
Jan 8, 2021·Accounts of Chemical Research·Lei HuangBao Yu Xia

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