双金属片
电催化剂
双功能
磷化物
催化作用
纳米棒
分解水
析氧
材料科学
化学工程
双功能催化剂
无机化学
化学
纳米技术
电化学
物理化学
电极
生物化学
光催化
工程类
作者
Yantong Long,Guoliang Zhao,Liuxin Yang,Yuxuan An,Yingming Xu,Chen Xu
标识
DOI:10.1016/j.ijhydene.2023.08.161
摘要
Efficient hydrogen/oxygen evolution reactions (HER/OER) bifunctional catalysts are critical to the overall water splitting efficiency. In this paper, a 1D rod-like structure bifunctional catalyst was firstly prepared, with ultralow Ru (1.19 wt%) loaded into CoNi bimetallic phosphides derived from 1D MOF-74-CoNi nanorods. Due to the strong interface interaction between Co and Ni bimetals which tunes the electronic structure and the Ru loading which increases the number of active sites of the catalyst, the electrocatalytic performance for both HER (8.7mV@10 mA cm−2) and OER (179.4mV@10 mA cm−2) under alkaline condition were significantly improved. The cell voltage of the full water splitting device assembled by the catalysts was only 1.47 V to achieve 10 mA cm−2. The rational materials design of 1D rod-like structured bimetallic phosphide catalysts in this work may suggest a new strategy for the preparation of other bifunctional electrocatalysts.
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