Highly Efficient NiS/Ni(OH)x Heterogeneous Structure Electrocatalyst with Regenerative Oxygen Vacancies for Oxygen Evolution Reaction
Yue Qin,
Qingli Xu,
Rong Zhao
et al.
Abstract:Developing low‐cost and highly efficient electrocatalysts toward oxygen evolution reaction (OER) is of vital significance for electrochemical water splitting. Herein, we fabricate a heterostructure NiS/Ni(OH)x electrocatalyst (Ni‐S‐n) with regenerative oxygen vacancies via electro‐deposition on nickel foam (NF) followed by a facile NaBH4 reduction. The resulting Ni‐S‐5 catalyst with appropriate amount of oxygen vacancies (Ovs) exhibits extraordinary activity for alkaline OER with overpotential of 142 mV and 24… Show more
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