High-index faceted Ni3S2 nanosheet arrays as highly active and ultrastable electrocatalysts for water splitting

Journal of the American Chemical Society
Liang-Liang FengXiaoxin Zou

Abstract

Elaborate design of highly active and stable catalysts from Earth-abundant elements has great potential to produce materials that can replace the noble-metal-based catalysts commonly used in a range of useful (electro)chemical processes. Here we report, for the first time, a synthetic method that leads to in situ growth of {2̅10} high-index faceted Ni3S2 nanosheet arrays on nickel foam (NF). We show that the resulting material, denoted Ni3S2/NF, can serve as a highly active, binder-free, bifunctional electrocatalyst for both the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER). Ni3S2/NF is found to give ∼100% Faradaic yield toward both HER and OER and to show remarkable catalytic stability (for >200 h). Experimental results and theoretical calculations indicate that Ni3S2/NF's excellent catalytic activity is mainly due to the synergistic catalytic effects produced in it by its nanosheet arrays and exposed {2̅10} high-index facets.

References

Jun 9, 2010·Advanced Materials·Yanguang LiYiying Wu
Apr 23, 2011·Journal of the American Chemical Society·Yanguang LiHongjie Dai
May 17, 2012·Accounts of Chemical Research·Zewei QuanJiye Fang
Oct 15, 2013·Journal of the American Chemical Society·Xiaoxin ZouTewodros Asefa
Nov 14, 2013·Journal of the American Chemical Society·Yujie SunChristopher J Chang
May 24, 2014·Chemical Reviews·Gang LiuHui-Ming Cheng
Jun 6, 2014·Journal of the American Chemical Society·Matthew S FaberSong Jin
Feb 11, 2015·Journal of the American Chemical Society·Charles C L McCroryThomas F Jaramillo
Mar 13, 2015·Journal of the American Chemical Society·Kun XuYi Xie
Apr 18, 2015·Chemical Society Reviews·Xiaoxin Zou, Yu Zhang
Jun 24, 2015·Journal of the American Chemical Society·Joseph M FalkowskiYogesh Surendranath

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Citations

Feb 7, 2017·ACS Applied Materials & Interfaces·Jing WangYong Wang
Apr 28, 2017·ACS Applied Materials & Interfaces·Guangxing ZhangFeng Pan
May 27, 2017·Dalton Transactions : an International Journal of Inorganic Chemistry·Xiaoqiang DuYong Ding
Jun 1, 2017·Dalton Transactions : an International Journal of Inorganic Chemistry·Wenjun LiuHuaming Li
Jan 14, 2017·Chemical Society Reviews·Nian-Tzu SuenHao Ming Chen
Feb 24, 2016·Physical Chemistry Chemical Physics : PCCP·Francesca Costanzo
Mar 28, 2018·Chemical Communications : Chem Comm·Hong ZhangJohn Wang
Apr 4, 2018·Chemical Communications : Chem Comm·Fang LiXiao-Jun Lv

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