Abstract
Abstract At present, there is an urgent need for plentiful non-noble metal catalyst to substitute for valuableness platinum based metal catalyst in electrochemical water splitting. Here, we fabricated a three-demensional (3D) Ni Co NiCo2O4 nanosheets electrocatalyst that directly grew on Ni foam firstly and then were reduced in 0.1 mol dm−3 sodium borohydride solution. This electrode exhibited high activity in 1.0 mol dm−3 KOH solution with an onset potential of ∼40 mV and a tafel slope of 77 mV dec−1. Furthermore, the Ni Co NiCo2O4/NF electrode showed a splendid durability during long-playing electrochemical test. Our work may provide an inexpensive, easy-to-obtain and excellent catalyst candidate for future electrolytic water research and industry studies that may involve hydrogen applications in the future.
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