Ting Wang, Zhuoya Pei, Dandan Chen, Shujiao Yang, Xiaohan Liu, Jiwu Zhao*, Xue-Peng Zhang*, Rui Cao and Wei Zhang*,
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引用次数: 0
Abstract
Bimetallic-based materials have been considered as prominent electrocatalysts for water oxidation. However, ambiguous concepts about the real active center widely exist in bimetallic electrocatalysts. Here, we prepared CoNi selenite single crystals with nondifferential distribution of Co and Ni metal centers. Compared with traditional solid solutions, single crystals provide an appealing platform to investigate the metal synergic effect in electrocatalytic water oxidation. On the basis of detailed spectral and electrochemical studies, it has been confirmed that Co promotes the formation of high-valent Ni species as the real active sites for water oxidation. Since there are sustained debates on the evolution of active sites in bimetallic materials for water oxidation, the findings in this work are of importance to understand the insights of water oxidation and are valuable in the rational design of functional bimetallic electrocatalysts.
期刊介绍：
ACS Catalysis is an esteemed journal that publishes original research in the fields of heterogeneous catalysis, molecular catalysis, and biocatalysis. It offers broad coverage across diverse areas such as life sciences, organometallics and synthesis, photochemistry and electrochemistry, drug discovery and synthesis, materials science, environmental protection, polymer discovery and synthesis, and energy and fuels.
The scope of the journal is to showcase innovative work in various aspects of catalysis. This includes new reactions and novel synthetic approaches utilizing known catalysts, the discovery or modification of new catalysts, elucidation of catalytic mechanisms through cutting-edge investigations, practical enhancements of existing processes, as well as conceptual advances in the field. Contributions to ACS Catalysis can encompass both experimental and theoretical research focused on catalytic molecules, macromolecules, and materials that exhibit catalytic turnover.
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