双功能
电催化剂
锌
氧化物
铜
无机化学
化学
材料科学
催化作用
电化学
冶金
电极
有机化学
物理化学
作者
Murugesan Praveen Kumar,Natesan Kumaresan,R.V. Mangalaraja,Irina Zaporotskova,Arunachalam Arulraj,G. Murugadoss,Arivalagan Pugazhendhi
标识
DOI:10.1016/j.envres.2024.119030
摘要
Bifunctional electrocatalysts are the attractive research in the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER) in the overall water-splitting reactions. The design and development of the cost-effective OER/HER bifunctional electrocatalysts with superior catalytic activity are still remaining as the big challenges. Herein, we have developed the CuO-ZnO nanocomposite as a bifunctional OER/HER electrocatalyst via simple chemical precipitation method. The nanocomposite was investigated for its crystalline structure, surface morphology and the functions of elements using XRD, FT-IR, SEM, TEM and XPS characterization techniques, respectively. The nanocomposite exhibited the excellent activity for the overall water-splitting in an alkaline medium. The CuO-ZnO nanocomposite showed the less onset potential of 1.4 and 0.15 V versus RHE in 1M KOH (Tafel slopes value of 0.180 and 0.400 V dec
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