典型文献
Precisely quantifying bulk transition metal valence evolution in conventional battery electrode by inverse partial fluorescence yield
文献摘要：
Precisely quantifying transition metal(TM)redox in bulk is a key to understand the fundamental of opti-mizing cathode materials in secondary batteries.At present,the commonly used methods to probe TM redox are hard X-ray absorption spectroscopy(hXAS)and soft X-ray absorption spectroscopy(sXAS).However,they are both facing challenges to precisely quantify the valence states of some transition met-als such as Mn.In this paper,Mn-L iPFY(inverse partial fluorescence yield)spectra extracted from Mn-L mRIXS(mapping of resonant inelastic X-ray scattering)is adopted to quantify Mn valence states.Mn-L iPFY spectra has been considered as a bulk-sensitive,non-distorted probe of TM valence states.However,the exact precision of this method is still unclear in quantifying practical battery electrodes.Herein,a series of LiMn204 electrodes with different charge and discharge states are prepared.Based on their electrochemical capacity(generally considered to be very precise),the precision of Mn iPFY in quantifying bulk Mn valence state is confirmed,and the error range is unraveled.Mn-L mRIXS iPFY thus is identified as one of the best methods to quantify the bulk Mn valence state comparing with hXAS and sXAS.
文献关键词：
中图分类号：
作者姓名：
Kehua Dai;Weiwei Shao;Beibei Zhao;Wenjuan Zhang;Yan Feng;Wenfeng Mao;Guo Ai;Gao Liu;Jing Mao;Wanli Yang
作者机构：
College of Chemistry,Tianjin Normal University,Tianjin 300387,China;Advanced Light Source,Lawrence Berkeley National Laboratory,Berkeley,CA 94720,United States;College of Physics and Materials Science,Tianjin Normal University,Tianjin 300387,China;Energy Storage and Distributed Resources Division,Energy Technologies Area,Lawrence Berkeley National Laboratory,Berkeley,CA 94720,United States;School of Materials Science and Engineering,Zhengzhou University,Zhengzhou 450001,Henan,China
文献出处：
引用格式：
[1]Kehua Dai;Weiwei Shao;Beibei Zhao;Wenjuan Zhang;Yan Feng;Wenfeng Mao;Guo Ai;Gao Liu;Jing Mao;Wanli Yang-.Precisely quantifying bulk transition metal valence evolution in conventional battery electrode by inverse partial fluorescence yield)[J].能源化学,2022(06):363-368
A类：
hXAS,sXAS,iPFY,mRIXS,LiMn204
B类：
Precisely,quantifying,bulk,transition,metal,valence,evolution,conventional,battery,by,inverse,partial,fluorescence,yield,TM,redox,key,understand,fundamental,opti,mizing,cathode,materials,secondary,batteries,At,present,commonly,used,methods,probe,hard,ray,absorption,spectroscopy,soft,However,they,both,facing,challenges,precisely,states,some,such,In,this,paper,spectra,extracted,from,mapping,resonant,inelastic,scattering,adopted,has,been,considered,sensitive,distorted,exact,precision,still,unclear,practical,electrodes,Herein,series,different,discharge,prepared,Based,their,electrochemical,capacity,generally,very,confirmed,error,range,unraveled,thus,identified,one,best,comparing
AB值：
0.445995
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