화학공학소재연구정보센터
Catalysis Today, Vol.358, 184-195, 2020
Graphene-cobalt based oxygen electrocatalysts
Increasing green energy demands and environmental concerns have promoted extensive research on the development of next-generation energy technologies with high efficiency and environmental friendliness. One big challenge of electrochemical energy conversion and storage is to facilitate the core electrocatalytic oxygen reactions, including oxygen reduction reaction (ORR) and oxygen evolution reaction (OER), which commonly suffering from slow kinetics. In the past decade, great effort has been devoted to the development of next generation oxygen electrocatalysts based on transition metals, among which cobalt-based compounds stand out as one of the most promising candidates for precious metals, as exhibiting highly efficiency, excellent stability, plus low-cost and earth-abundance. Here, recent progresses on the synthesis, structure and performance of various oxygen electrocatalysts of cobalt related, including metallic Co, Co-nonmetallic compounds, Co-metallic compounds and Co single-atom catalysts, are summarized, and the perspectives on the future developments are discussed.