Abstract
AbstractThe development of highly active electrocatalysts is of great importance toward the practical applications of many meaningful electrocatalytic reactions. In this paper, the synthesis and electrocatalytic properties of a multifunctional ruthenium nickel boride hybrid electrocatalyst are reported for the first time. Compared to pristine nickel boride (Ni‐B) and Ru electrocatalysts, Ru@Ni‐B with trace Ru loading amount of 0.133 mg cm−2 prepared by a simple wet chemical method, shows remarkably improved activity toward the hydrogen evolution reaction, the oxygen evolution reaction, and the glucose oxidation reaction. The electrolytic cell assembled with Ru@Ni‐B/nickel foam electrode as both cathode and anode can deliver 10 mA cm−2 at only 1.42 V for alkaline overall water splitting and 1.24 V for glucose electrolysis. It is further found that the synergistic coupling of ruthenium with nickel boride plays an important role in the superior performance of the hybrid electrocatalyst.
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