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Synergistic Coupling of Nickel Boride with Ru Cluster as a Highly Active Multifunctional Electrocatalyst for Overall Water Splitting and Glucose Electrolysis
Author(s) -
Liu Huixiang,
Zhang Ruiqi,
Chen Lulu,
Wang Lincai,
Guo Yanhui,
Yang Yanjing
Publication year - 2021
Publication title -
advanced sustainable systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.499
H-Index - 24
ISSN - 2366-7486
DOI - 10.1002/adsu.202000184
Subject(s) - electrocatalyst , nickel , electrolysis , ruthenium , electrolysis of water , inorganic chemistry , water splitting , oxygen evolution , materials science , anode , boride , cathode , chemical engineering , electrolyte , catalysis , chemistry , electrode , electrochemistry , metallurgy , organic chemistry , photocatalysis , engineering
The 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.