析氧
层状双氢氧化物
双金属片
材料科学
氧化物
过渡金属
化学工程
分解水
无定形固体
无机化学
催化作用
纳米技术
金属
冶金
化学
电极
电化学
氢氧化物
光催化
工程类
物理化学
有机化学
生物化学
作者
Mohammad Etesami,Ahmad Azmin Mohamad,Mai Thanh Nguyen,Tetsu Yonezawa,Rojana Pornprasertsuk,Anongnat Somwangthanaroj,Soorathep Kheawhom
标识
DOI:10.1016/j.jallcom.2021.161738
摘要
High-performing electrocatalysts of oxygen evolution reaction (OER) are essential for various clean energy devices. Due to their excellent OER performance, transition metal layered doubled hydroxides (LDHs) attract increasing interest. Herein, a systematic study of superfast single-step synthesis for a series of carbon-free, binder-free self-supported bimetallic hydroxides on Ni foam (NF) and their associated performance towards OER in alkaline electrolytes is presented. Transition metal hydroxides are directly deposited on NF by a superfast electrodeposition technique. The resultant bimetallic hydroxides are uniformly distributed over NF in short-range order crystalline or amorphous structures. All six electrodes demonstrate significantly greater OER activities than ruthenium oxide (RuO2). The interaction between transition metal LDHs and NF determines OER performance. Applying optimum conditions, the highest activities are accomplished. Overall, results show excellent OER performance. The fast electrodeposition technique provides a systematic and cost-effective way to achieve durable self-supported transition metal LDH structures showing excellent OER performance.
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