Electrodeposition of hierarchically structured three-dimensional nickel-iron electrodes for efficient oxygen evolution at high current densities

Nature Communications
Xunyu Lu, Chuan Zhao

Abstract

Large-scale industrial application of electrolytic splitting of water has called for the development of oxygen evolution electrodes that are inexpensive, robust and can deliver large current density (>500 mA cm(-2)) at low applied potentials. Here we show that an efficient oxygen electrode can be developed by electrodepositing amorphous mesoporous nickel-iron composite nanosheets directly onto macroporous nickel foam substrates. The as-prepared oxygen electrode exhibits high catalytic activity towards water oxidation in alkaline solutions, which only requires an overpotential of 200 mV to initiate the reaction, and is capable of delivering current densities of 500 and 1,000 mA cm(-2) at overpotentials of 240 and 270 mV, respectively. The electrode also shows prolonged stability against bulk water electrolysis at large current. Collectively, the as-prepared three-dimensional structured electrode is the most efficient oxygen evolution electrode in alkaline electrolytes reported to the best of our knowledge, and can potentially be applied for industrial scale water electrolysis.

References

May 12, 2010·Proceedings of the National Academy of Sciences of the United States of America·Mircea DincăDaniel G Nocera
Sep 16, 2010·Journal of the American Chemical Society·Yelena Gorlin, Thomas F Jaramillo
Nov 11, 2010·Chemical Reviews·Timothy R CookDaniel G Nocera
Mar 19, 2011·Journal of the American Chemical Society·Boon Siang Yeo, Alexis T Bell
Jan 24, 2013·Journal of the American Chemical Society·Yongye LiangHongjie Dai
Jan 31, 2013·Chemical Society Reviews·Hailiang Wang, Hongjie Dai
Apr 9, 2013·Angewandte Chemie·Jun WangXin-bo Zhang
May 25, 2013·Journal of the American Chemical Society·Ming GongHongjie Dai
Jul 19, 2013·Journal of the American Chemical Society·Mary W Louie, Alexis T Bell
Nov 1, 2013·Journal of the American Chemical Society·Charles C L McCroryThomas F Jaramillo
Feb 2, 2012·The Journal of Physical Chemistry Letters·Youngmin LeeYang Shao-Horn

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Citations

Sep 15, 2015·ACS Applied Materials & Interfaces·Mingxing ChenRui Cao
Jun 28, 2016·Journal of the American Chemical Society·Carlos G Morales-GuioXile Hu
Aug 24, 2016·ACS Applied Materials & Interfaces·Do Hong KimHo Won Jang
Nov 3, 2016·ACS Applied Materials & Interfaces·Ningning BaiHongzhou Dong
Dec 23, 2016·Langmuir : the ACS Journal of Surfaces and Colloids·Naveen Chandrasekaran, Saravanakumar Muthusamy
Jan 25, 2017·Inorganic Chemistry·Jianmei WangXuping Sun
Feb 7, 2017·ACS Applied Materials & Interfaces·Michael T Y PaulByron D Gates
Feb 13, 2016·Scientific Reports·Keliang WangDongfang Chen
Mar 18, 2017·Chemical Reviews·Chaoliang TanHua Zhang
Apr 4, 2017·Chemistry : a European Journal·Ruixiang GeXuping Sun
May 4, 2017·Chemical Communications : Chem Comm·Hideshi OokaRyuhei Nakamura
May 4, 2017·ChemSusChem·Stefan BarweWolfgang Schuhmann
Dec 10, 2015·Chemical Communications : Chem Comm·Yongmei LiXiao Hu

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Methods Mentioned

BETA
scanning electron microscopy
transmission electron microscopy
electron diffraction
X-ray
quartz crystal microbalance

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