It is important for regenerative fuel cells, rechargeable metal–air batteries and water splitting to find reasonable designed nonprecious metal catalysts, which have efficient and durable electrocatalytic activities for oxygen reduction reaction (ORR), oxygen evolution reaction (OER) and hydrogen evolution reaction (HER). In this work, through a simple hydrothermal method and following annealing process, Mo2C and Ni nanoparticles were encapsulated in a nanoporous hierarchical structure of carbon (Ni/Mo2C/C). The ingenious structure delivers several favorable characteristics including abundant active sites resulting from hollow and mesoporous architecture, boosted reaction kinetics from metallic components, sufficient interfacial effect and synergistic effect from intimate integration of Mo2C, Ni and C. The multifunctional Ni/Mo2C/C hybrid electrocatalyst performs excellently for ORR, OER and HER, better than most of the reported electrocatalysts with three functions. A facile and novel strategy was developed to construct the multifunctional catalysts with excellent electrocatalysis behavior.

中文翻译：

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构建锚定在高孔碳纳米管上的 Ni-Mo2C 纳米杂化物作为高效的多功能电催化剂

寻找合理设计的非贵金属催化剂对可再生燃料电池、可充电金属-空气电池和水分解具有重要意义，它们对氧还原反应（ORR）、析氧反应（OER）和析氢反应具有高效和持久的电催化活性。她）。在这项工作中，通过简单的水热法和随后的退火工艺，Mo2C和Ni纳米粒子被封装在碳的纳米多孔分级结构中（Ni/Mo2C/C)。巧妙的结构提供了几个有利的特性，包括中空和介孔结构产生的丰富活性位点、金属组分提高的反应动力学、充分的界面效应和 Mo 紧密结合产生的协同效应2C、Ni 和 C. 多功能 Ni/Mo2C/C杂化电催化剂在ORR、OER和HER方面表现出色，优于大多数已报道的具有三种功能的电催化剂。开发了一种简便且新颖的策略来构建具有优异电催化性能的多功能催化剂。