用于促进光催化析氢的二维双金属氢氧化镍钴单层助催化剂
A 2D bimetallic Ni-Co hydroxide monolayer cocatalyst for boosting photocatalytic H evolution.
作者信息
Su Haiwei, Yu Xiaohui, Wang Weikang, Wang Lele, Tang Hua, Liu Qinqin
机构信息
School of Materials Science and Engineering, Jiangsu University, Zhenjiang, Jiangsu, 212013, P. R. China.
School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, 212100, P. R. China.
出版信息
Chem Commun (Camb). 2022 May 24;58(42):6180-6183. doi: 10.1039/d2cc01557a.
Here, we report two-dimensional (2D) Ni-Co hydroxide monolayers (NiCo-HMs) as a highly active cocatalyst for enhancing the photocatalytic H evolution of 2D g-CN nanosheets. The NiCo-HMs can expand the interface of electron migration, promote the separation of photogenerated carriers, provide synergistic Co-Ni active sites, and optimize atomic hydrogen adsorption to improve the kinetics of the catalytic reaction. The resulting 2D/2D NiCo-HMs/g-CN heterojunction displays a high photocatalytic H evolution of 3.58 mmol g h.
在此，我们报道二维（2D）镍钴氢氧化物单层（NiCo-HMs）作为一种高活性助催化剂，用于增强二维g-CN纳米片的光催化析氢性能。NiCo-HMs能够扩展电子迁移界面，促进光生载流子的分离，提供协同的钴-镍活性位点，并优化原子氢吸附以改善催化反应动力学。所得的二维/二维NiCo-HMs/g-CN异质结表现出3.58 mmol g⁻¹ h⁻¹的高光催化析氢活性。
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