Xu Shikai, Li Zhiqiang, Chu Kainian, Yao Ge, Xu Yang, Niu Ping, Zheng Fangcai
Key Laboratory of Structure and Functional Regulation of Hybrid Materials, Anhui University, Ministry of Education, Hefei, Anhui 230601, People's Republic of China.
Dalton Trans. 2020 Oct 12;49(39):13647-13654. doi: 10.1039/d0dt02961k.
The design and fabrication of low-cost, efficient, and robust electrocatalysts for the hydrogen evolution reaction (HER) is of great importance in accelerating the development of water electrolysis technology. Herein, NiRu alloy nanostructures embedded in a nitrogen-doped carbon matrix (NiRu@NC) have been fabricated through a facile metal-organic framework-derived (MOF-derived) strategy. Benefiting from their advantages in the unique structures and components, the resulting NiRu@NC possesses excellent activity and durability towards the HER, which exhibits low overpotentials of 85 and 53 mV at a current density of 10 mA cm-2 in acidic and alkaline electrolytes, respectively. Furthermore, NiRu2@NC-600 also exhibits excellent hydrogen oxidation reaction (HOR) activity in an alkaline electrolyte. Therefore, this work provides a facile MOF-derived strategy for the design and synthesis of low-cost and efficient electrocatalysts for the HER.
设计和制造用于析氢反应（HER）的低成本、高效且坚固的电催化剂对于加速水电解技术的发展具有重要意义。在此，通过一种简便的金属有机框架衍生（MOF衍生）策略制备了嵌入氮掺杂碳基质中的NiRu合金纳米结构（NiRu@NC）。得益于其独特结构和组分的优势，所得的NiRu@NC对HER具有优异的活性和耐久性，在酸性和碱性电解质中，在电流密度为10 mA cm-2时分别表现出85和53 mV的低过电位。此外，NiRu2@NC-600在碱性电解质中也表现出优异的氢氧化反应（HOR）活性。因此，这项工作为设计和合成用于HER的低成本高效电催化剂提供了一种简便的MOF衍生策略。
