Linlin Zhao, Min Hong, Xiaohua Zhang, Cuicui Du, Jinhua Chen
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引用次数: 0
Abstract
The efficiency of electrochemical water splitting for hydrogen production has been enormously impeded by the sluggish anodic oxygen evolution reaction (OER). Hence, it is highly imperative to investigate high-performance and low-cost OER catalysts. Herein, we present a simple route to achieve amorphous nickel cobalt borate in-situ generated and modified nickel cobalt organic framework (NiCoBi/NiCoMOF) electrocatalyst. Benefiting from the rough surface and abundant active sites provided by the unique amorphous-crystalline nanosheet structure, and the modulated electronic structure and enriched oxygen vacancies caused by the introduction of electronegative boronic acid anions, NiCoBi/NiCoMOF demonstrates clearly optimized catalytic activity and gratifying stability towards the oxygen evolution reaction (OER) in 1.0 M KOH. This study not only provides an effective approach for designing transition metal borates using MOF as a precursor, but also introduces a novel method for developing efficient OER catalysts.
电化学水分解制氢的效率受到缓慢的阳极析氧反应（OER）的极大阻碍。因此，研究高性能、低成本的OER催化剂势在必行。本文提出了一种原位生成和修饰镍钴有机骨架（NiCoBi/NiCoMOF）电催化剂的简单方法。得益于独特的非晶纳米片结构提供的粗糙表面和丰富的活性位点，以及引入电负性硼酸阴离子引起的调制电子结构和丰富的氧空位，NiCoBi/NiCoMOF在1.0 M KOH下对析氧反应（OER）表现出明显优化的催化活性和令人满意的稳定性。本研究不仅为设计以MOF为前驱体的过渡金属硼酸盐提供了有效的途径，而且为开发高效的OER催化剂提供了一种新方法。
期刊介绍：
The Journal of Alloys and Compounds is intended to serve as an international medium for the publication of work on solid materials comprising compounds as well as alloys. Its great strength lies in the diversity of discipline which it encompasses, drawing together results from materials science, solid-state chemistry and physics.
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