Wang Wenxin, Deng Kai, Mao Qiqi, Yu Hongjie, Wang Ziqiang, Xu You, Li Xiaonian, Wang Liang, Wang Hongjing
State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China.
Nanotechnology. 2022 Nov 7;34(4). doi: 10.1088/1361-6528/ac9b60.
Interface engineering of two-dimensional (2D) materials by conductive polymer modification is one of the valid methods to promote hydrogen evolution reaction (HER) performance. Herein, we report a simple and universal strategy for the synthesis of polypyrrole (PPy) modified Rh metallene (Rh@PPy metallene) towards an efficient pH-universal HER. Due to the unique ultrathin 2D metallene structure and the optimized electronic structure between the metallene-PPy surfaces, the as-prepared Rh@PPy metallene not only exhibits excellent HER activity with low overpotentials of 16, 39 and 42 mV in 0.5 M HSO, 1 M KOH, and 1 M phosphate buffer solution at current density of 10 mA cm, but also displays outstanding stability and durability. This work provides a well-founded pathway to constructe metallene-organic interfaces for various electrocatalytic applications.
通过导电聚合物修饰对二维（2D）材料进行界面工程是提高析氢反应（HER）性能的有效方法之一。在此，我们报道了一种简单通用的策略，用于合成聚吡咯（PPy）修饰的铑金属烯（Rh@PPy金属烯）以实现高效的pH通用HER。由于独特的超薄二维金属烯结构以及金属烯-PPy表面之间优化的电子结构，所制备的Rh@PPy金属烯不仅在0.5 M HSO、1 M KOH和1 M磷酸盐缓冲溶液中，在电流密度为10 mA cm时表现出优异的HER活性，过电位分别为16、39和42 mV，而且还具有出色的稳定性和耐久性。这项工作为构建用于各种电催化应用的金属烯-有机界面提供了一条有充分依据的途径。
