纳米复合材料
磷化物
材料科学
镍
催化作用
纳米管
电解质
纳米技术
无定形固体
化学工程
碳纳米管
电极
化学
冶金
有机化学
物理化学
工程类
作者
Shiyuan Gao,Ali Zavabeti,Bin Wang,Rui Ming Ren,Chunhui Yang,Zhongqing Liu,Yichao Wang
出处
期刊:ACS applied nano materials
[American Chemical Society]
日期:2021-04-22
卷期号:4 (5): 4542-4551
被引量:24
标识
DOI:10.1021/acsanm.1c00134
摘要
Nickel phosphide (NiPx)-based nanocomposites emerged as a new class of highly promising non-noble-metal-based electrocatalysts for hydrogen evolution reactions (HER). However, conventional synthesis for this type of nanocomposite involves using harsh organic solvents and multiple complicated procedures as well as the release of concomitant toxic gases, thus significantly restricting their practical applications. To explore a much greener and more sustainable synthesis approach, a facile one-step electrodeposition technique for nanoelectrode toward HER is developed in this research, in which amorphous NiPx is anchored onto TiO2 nanotube arrays to form a nanocomposite material. The synthesized nanocomposites have a synergistic coupling of material properties in two components of the nanocomposites, with an enhanced charge transfer and electrochemically active surface areas. Because of such unique characteristics, the system exhibits a remarkable catalytic reduction activity and superior stability in alkaline electrolytes, requiring overpotentials of 104 and 129 mV to achieve current densities of 10 and 20 mA cm–2, respectively. This method provides an effective and green approach to fabricate NiPx-based nanocomposites with enhanced HER performances.
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