催化作用
析氧
双金属
普鲁士蓝
材料科学
磷化物
硫化物
贵金属
氧气
化学工程
电化学
无机化学
化学
冶金
电极
物理化学
有机化学
工程类
作者
Zhen Cao,Zhou Tingting,Wei Xi,Yunfeng Zhao
标识
DOI:10.1016/j.electacta.2017.11.058
摘要
In order to satisfy the desire of energy shortage for excellent OER catalyst, phosphide (Co0.4Fe0.28P), and sulfide (Co0.37Fe0.26S) nanocubes (NCs) were synthesized by heating CoFe-based Prussian blue analogues (CoFe-PBA) precursors under different atmosphere, respectively. The prepared Co0.4Fe0.28P and Co0.37Fe0.26S NCs have defined stoichiometry and larger surface area, which revealed excellent electrocatalytic activities toward OER in alkaline condition. Co0.4Fe0.28P and Co0.37Fe0.26S nanocubes show an excellent electrocatalytic performance for the OER in 1 M KOH, which are superior to the state-of-the-art commercialized IrOx catalyst and most of MOFs derived OER catalyst. Furthermore, we also briefly study the different electrochemical oxidation driving (EOD) influence of Co0.4Fe0.28P and Co0.37Fe0.26S NCs for exposed more active sites and further discovering that sulfides show a better driving effect. We expect to give some inspiration on the design of OER catalysts with enhanced performance, and catalysts applied in other designs of the new catalyst.
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