Anouar Aicha, Doménech-Carbó Antonio, Garcia Hermenegildo
Engineering Division, Euromed Research Institute, EuroMed University of Fes (UEMF), Route de Meknes, Rond-Point de Bensouda, Fès 30070, Morocco.
Departamento de Química (UPV), Instituto de Tecnología Química (CSIC-UPV), Universitat Politècnica de València, Av. de los Naranjos s/n, 46022 Valencia, Spain.
Nanomaterials (Basel). 2022 Oct 13;12(20):3597. doi: 10.3390/nano12203597.
Metal phosphides have recently emerged as promising electrocatalysts for hydrogen evolution reaction (HER). Herein, we report the synthesis of ruthenium diphosphide embedded on a dual-doped graphitic carbon by pyrolyzing chitosan beads impregnated with ruthenium chloride and phosphorus pentoxide. The as-synthesized RuP@N-P-C displays a good electrocatalytic activity in acidic, neutral and alkaline media. We show that the HER activity of the electrocatalyst can be tuned by varying the concentration of Li cations. Co-diffusion effects on H exerted by Li on HER in the porous carbon matrix have been observed.
金属磷化物最近已成为用于析氢反应（HER）的有前景的电催化剂。在此，我们报告了通过热解浸渍有氯化钌和五氧化二磷的壳聚糖珠来合成嵌入双掺杂石墨碳中的二磷化钌。所合成的RuP@N-P-C在酸性、中性和碱性介质中均表现出良好的电催化活性。我们表明，通过改变Li阳离子的浓度可以调节电催化剂的HER活性。已经观察到Li在多孔碳基质中对HER施加的对H的共扩散效应。
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