Abstract
We present a facile strategy to prepare nanoporous NiO rods self-supported on Ni foam (Ni@NiO) by a hydrothermal approach in oxalic acid solution with subsequent annealing treatment. Their electrocatalytic properties for hydrogen evolution reaction (HER) were then evaluated in alkaline solution. The experimental results reveal that the Ni@NiO materials possessed excellent HER catalytic activity with low overpotential of ~ 190 mV versus reversible hydrogen electrode and current density of 10 mA cm−2. Moreover, the stability of the properties of the Ni@NiO materials was also investigated.
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Acknowledgements
The authors would like to acknowledge funding from the National Natural Science Foundation of China (51702027, 11572057), China Postdoctoral Science Foundation (2018M631082), Foundation of Sichuan Educational Committee (18ZB0139), and Open Foundation of Sichuan Engineering Research Center for Powder Metallurgy (SC-FMYJ2018-10).
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Kong, Q., Feng, W., Ma, S. et al. Hydrothermal Synthesis of Nanoporous NiO Rods Self-Supported on Ni Foam as Efficient Electrocatalysts for Hydrogen Evolution Reaction. JOM 71, 621–625 (2019). https://doi.org/10.1007/s11837-018-3241-1
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DOI: https://doi.org/10.1007/s11837-018-3241-1