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Temperature dependent local structure of LiCoO2 nanoparticles determined by Co K-edge X-ray absorption fine structure

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Title: Temperature dependent local structure of LiCoO2 nanoparticles determined by Co K-edge X-ray absorption fine structure
Authors: Maugeri, L.1, Simonelli, L.2, Iadecola, A.1,3, Joseph, B.1, Okubo, M.4, Honma, I.5, Wadati, H.6, Mizokawa, T.7,8, Saini, N.L.1 Naurang.Saini@roma1.infn.it
Source: Journal of Power Sources. May2013, Vol. 229, p272-276. 5p.
Subjects: Lithium cobalt oxide, Nanoparticles, Extended X-ray absorption fine structure, Effect of temperature on metals, Chemical bonds, Oxygen
Abstract: Abstract: Temperature dependent Co K-edge extended X-ray absorption fine structure is used to investigate local disorder in LiCoO2 nanoparticles. We find that the nanostructuring has direct influence on the bondlength characteristics. The results reveal a substantial decrease in the force constant of Co–O bonds (the Co–O bonds becoming more flexible), while that for the Co–Co bonds showing hardly any change (or increases slightly) in LiCoO2 nanoparticles with respect to the bulk. Therefore, both random disorder and Co–O bondlength flexibility should be the factors to limit the battery characteristics of the LiCoO2 nanoparticles. [Copyright &y& Elsevier]
Copyright of Journal of Power Sources is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 85174570
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: Temperature dependent local structure of LiCoO<subscript>2</subscript> nanoparticles determined by Co K-edge X-ray absorption fine structure
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Power+Sources%22">Journal of Power Sources</searchLink>. May2013, Vol. 229, p272-276. 5p.
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  Data: <searchLink fieldCode="DE" term="%22Lithium+cobalt+oxide%22">Lithium cobalt oxide</searchLink><br /><searchLink fieldCode="DE" term="%22Nanoparticles%22">Nanoparticles</searchLink><br /><searchLink fieldCode="DE" term="%22Extended+X-ray+absorption+fine+structure%22">Extended X-ray absorption fine structure</searchLink><br /><searchLink fieldCode="DE" term="%22Effect+of+temperature+on+metals%22">Effect of temperature on metals</searchLink><br /><searchLink fieldCode="DE" term="%22Chemical+bonds%22">Chemical bonds</searchLink><br /><searchLink fieldCode="DE" term="%22Oxygen%22">Oxygen</searchLink>
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  Data: Abstract: Temperature dependent Co K-edge extended X-ray absorption fine structure is used to investigate local disorder in LiCoO2 nanoparticles. We find that the nanostructuring has direct influence on the bondlength characteristics. The results reveal a substantial decrease in the force constant of Co–O bonds (the Co–O bonds becoming more flexible), while that for the Co–Co bonds showing hardly any change (or increases slightly) in LiCoO2 nanoparticles with respect to the bulk. Therefore, both random disorder and Co–O bondlength flexibility should be the factors to limit the battery characteristics of the LiCoO2 nanoparticles. [Copyright &y& Elsevier]
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  Data: <i>Copyright of Journal of Power Sources is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.jpowsour.2012.11.127
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        Text: English
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        PageCount: 5
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      – SubjectFull: Extended X-ray absorption fine structure
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      – SubjectFull: Effect of temperature on metals
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      – SubjectFull: Chemical bonds
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      – SubjectFull: Oxygen
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      – TitleFull: Temperature dependent local structure of LiCoO2 nanoparticles determined by Co K-edge X-ray absorption fine structure
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              Text: May2013
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