典型文献
Manipulating Spin Polarization of Defected Co3O4 for Highly Efficient Electrocatalysis
文献摘要：
Electrocatalytic water splitting is limited by kinetics-sluggish oxygen evolution,in which the activity of catalysts depends on their electronic structure.However,the influence of electron spin polarization on catalytic activity is ambiguous.Herein,we successfully regulate the spin polarization of Co3O4 catalysts by tuning the concentration of cobalt defects from 0.8 to 14.5％.X-ray absorption spectroscopy spectra and density functional theory calculations confirm that the spin polarization of Co3O4 is positively correlated with the concentration of cobalt defects.Importantly,the enhanced spin polarization can increase hydroxyl group absorption to significantly decrease the Gibbs free energy change value of the OER rate-determining step and regulate the spin polarization of oxygen species through a spin electron-exchange process to easily produce triplet-state O2,which can obviously increase electrocatalytic OER activity.In specific,Co3O4-50 with 14.5％cobalt defects exhibits the highest spin polarization and shows the best normalized OER activity.This work provides an important strategy to increase the water splitting activity of electrocatalysts via the rational regulation of electron spin polarization.
文献关键词：
中图分类号：
作者姓名：
Yue Li;Tianzuo Wang;Muhammad Asim;Lun Pan;Rongrong Zhang;Zhen-Feng Huang;Zhichao Chen;Chengxiang Shi;Xiangwen Zhang;Ji-Jun Zou
作者机构：
Key Laboratory for Green Chemical Technology of the Ministry of Education,School of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,China;Haihe Laboratory of Sustainable Chemical Transformations,Tianjin 300192,China;Zhejiang Institute of Tianjin University,Ningbo 315201,Zhejiang,China;Collaborative Innovative Center of Chemical Science and Engineering(Tianjin),Tianjin 300072,China
文献出处：
引用格式：
[1]Yue Li;Tianzuo Wang;Muhammad Asim;Lun Pan;Rongrong Zhang;Zhen-Feng Huang;Zhichao Chen;Chengxiang Shi;Xiangwen Zhang;Ji-Jun Zou-.Manipulating Spin Polarization of Defected Co3O4 for Highly Efficient Electrocatalysis)[J].天津大学学报（英文版）,2022(03):163-173
A类：
Defected
B类：
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AB值：
0.557735
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