Mo/Fe bimetallic pyrophosphates derived from Prussian blue analogues for rapid electrocatalytic oxygen evolution  

作　　者：Jingyi Wang Jiajia Huang Siyu Zhao Ivan PParkin Zhihong Tian Feili Lai Tianxi Liu Guanjie He 

机构地区：[1]School of Chemical Engineering,Zhengzhou University,Zhengzhou,450001,China [2]Department of Chemistry,University College London,London,WC1H 0AJ,UK [3]School of Chemistry,University of Lincoln,Joseph Banks Laboratories,Green Lane,Lincoln,LN67DL,UK [4]Henan University,Jinming Avenue,Kaifeng,475001,China [5]Department of Chemistry,KU Leuven,Celestijnenlaan 200F,Leuven,3001,Belgium [6]Key Laboratory of Synthetic and Biological Colloids,Ministry of Education,School of Chemical and Material Engineering,International Joint Research Laboratory for Nano Energy Composites,Jiangnan University,Wuxi,214122,China

出　　处：《Green Energy & Environment》2023年第5期1450-1458,共9页绿色能源与环境（英文版）

基　　金：This work was supported by National Natural Science Foundation of China(No.51873198);the Engineering and Physical Sciences Research Council(EPSRC,EP/V027433/1);the Royal Society(RGSyR1y211080)。

摘　　要：Efficient and stable oxygen evolution electrocatalysts are indispensable for industrial applications of water splitting and hydrogen production.Herein,a simple and practical method was applied to fabricate(Mo,Fe)P2O7@NF electrocatalyst by directly growing Mo/Fe bimetallic pyrophosphate derived from Prussian blue analogues on three-dimensional porous current collector.In alkaline media,the developed material possesses good hydrophilic features and exhibits best-in-class oxygen evolution reaction(OER)performances.Surprisingly,the(Mo,Fe)P_(2)O_(7)@NF only requires overpotentials of 250 and 290 mV to deliver 100 and 600 mA cm^(-2)in 1 mol L^(-1)KOH,respectively.Furthermore,the(Mo,Fe)P_(2)O_(7)@NF shows outstanding performances in alkaline salty water and 1 mol L^(-1)high purity KOH.A worthwhile pathway is provided to combine bimetallic pyrophosphate with commercial Ni foam to form robust electrocatalysts for stable electrocatalytic OER,which has a positive impact on both hydrogen energy application and environmental restoration.

关 键 词：Oxygen evolution reaction Bimetallic pyrophosphate HETEROSTRUCTURE Self-supported electrocatalyst 

分 类 号：TQ116.2[化学工程—无机化工] TQ426