Facile Dynamic Synthesis of Homodispersed Ni3S2 Nanosheets as a High‐Efficient Bifunctional Electrocatalyst for Water Splitting
Facile Dynamic Synthesis of Homodispersed Ni3S2 Nanosheets as a High‐Efficient Bifunctional Electrocatalyst for Water Splitting
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DOI：
10.1002/cctc.201801960
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发表时间：
2019-02
期刊：
影响因子：
4.5
通讯作者：
Yuting Li;Yunfei Bu;Xiaoyang Chen;T. Zhu;Juan Wang;S. Kawi;Q. Zhong
中科院分区：
文献类型：
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作者：
Yuting Li;Yunfei Bu;Xiaoyang Chen;T. Zhu;Juan Wang;S. Kawi;Q. Zhong
开发高效、稳定的水分解电催化剂是一种极具发展前景的制氢技术，具有重要的现实意义。本文介绍了一种新型的一步动态水热法在泡沫镍上生长出树叶状的Ni3S2纳米片。基于这种新方法，该催化剂在碱性电解液中对析氢反应和析氧反应都表现出了良好的活性和稳定性，且分散均匀。此外，在10 mA cm−2的电流密度下，制备的Ni3S2作为两种全面分解水的电极催化剂表现出显著的双功能活性，电池电压为1.45V。这一工作为优化Ni3S2的生长以提高其电催化性能提供了新的前景。
It is extremely significant but still challenging to develop effective and stable electrocatalysts for water splitting, which is recommended as a promising technology to produce hydrogen. Herein, leaf‐like Ni3S2 nanosheets grown on the nickel foam fabricated by a novel one‐step dynamic hydrothermal method is demonstrated. Based on the new method, such catalyst with high and uniform dispersion exhibits superior activity and stability for both hydrogen evolution reaction and oxygen evolution reaction in basic electrolyte. Moreover, the as‐prepared Ni3S2 as two electrode catalysts of overall water splitting exhibits remarkable bifunctional activities with a small cell voltage of 1.45 V at a current density of 10 mA cm−2. This work can provide a new prospect for optimizing Ni3S2 growth to enhance its electrocatalytic performances.