Biomolecule-Assisted Synthesis and Electro-Catalytic Hydrogen Evolution of Flowerlike Nickel Sulfide Nanostructures
Biomolecule-Assisted Synthesis and Electro-Catalytic Hydrogen Evolution of Flowerlike Nickel Sulfide Nanostructures
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花状硫化镍纳米结构的生物分子辅助合成及电催化析氢
DOI：
10.1166/jnn.2019.16335
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发表时间：
2019
影响因子：
--
通讯作者：
Dong Qingsong
中科院分区：
文献类型：
--
作者：
Wang Yuqing;Zou Yizhen;Fang Zhiqiang;Wu Doudou;Yang Shishuai;Hao Zhaomin;Dong Qingsong
在本文中，花状硫化镍材料的合成使用一个简单的液相生物分子辅助的方法在存在的L-半胱氨酸（一种普通的和廉价的氨基酸），这原来是作为硫源和导向分子在硫化镍纳米结构的形成。采用扫描电子显微镜、X射线衍射、X射线光电子能谱和拉曼光谱对产物的形貌、结构和相组成进行了表征。此外，还研究了硫化镍材料作为强碱性介质中析氢反应的电催化剂。所制备的硫化镍具有良好的电催化性能，有望作为非贵金属HER催化剂用于水裂解制氢。
In this paper, flowerlike nickel sulfide materials are synthesized using a facile solution-phase biomolecule-assisted approach in the presence of L-cysteine (an ordinary and cheap amino acid), which turned out to serve as both the sulfur source and the directing molecule in the formation of nickel sulfide nanostructures. The morphology, structure, and phase composition of the assynthesized nickel sulfide products are characterized using scanning electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy and Raman. Moreover, the nickel sulfide materials are investigated as electro catalysts for hydrogen evolution reaction (HER) in strongly alkaline media. The electro catalytic performance of as-prepared nickel sulfide is promising for applications as non-noble-metal HER catalysts with water splitting for hydrogen production.