Constructing Symmetry-Mismatched RuxFe3–xO4 Heterointerface-Supported Ru Clusters for Efficient Hydrogen Evolution and Oxidation Reactions

• DOI: 10.1021/acs.nanolett.3c04690
• Publication Date: 2024-01-12T22:38:53Z
• Authors: Xueqin Mu; Xingyue Zhang; Ziyue Chen; Yun Gao; Min Yu; Ding Chen; Haozhe Pan; Suli Liu; Dingsheng Wang; Shichun Mu

Ru-related catalysts have shown excellent performance for the hydrogen evolution reaction (HER) and oxidation (HOR); however, a deep understanding of Ru-active sites on nanoscale heterogeneous support catalysis is still lacking. Herein, click chemistry strategy proposed to design Ru cluster-decorated nanometer RuxFe3–xO4 heterointerfaces (Ru/RuxFe3–xO4) as highly effective bifunctional catalysts. It found that introducing into nanometric Fe3O4 species breaks symmetry configuration optimizes active site in Ru/RuxFe3–xO4 HER HOR. As expected, catalyst displays prominent alkaline HOR with mass activity much higher than commercial Pt/C well robust stability during because strong interaction between cluster support, optimized adsorption intermediate (Had OHad). This work sheds light promsing approach improving electrocatalysis by breaking atomic dimension symmetry.