Dynamic study of (De)sodiation in alpha-MnO2 nanowires
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- 作者：Yifei Yuana ; b ; 1Author Vitae ; Lu Mac ; 1Author Vitae ; Kun Hea ; dAuthor Vitae ; Wentao YaoaAuthor Vitae ; Anmin NiefAuthor Vitae ; Xuanxuan BibAuthor Vitae ; Khalil AminebAuthor Vitae ; Tianpin Wuc ; twu@aps.anl.gov" class="auth_mail" title="E-mail the corresponding authorAuthor Vitae ; Jun Lub ; junlu@anl.gov" class="auth_mail" title="E-mail the corresponding authorAuthor Vitae ; Reza Shahbazian-Yassre ; f ; rsyassar@uic.edu" class="auth_mail" title="E-mail the corresponding authorAuthor Vitae
- 关键词：In situ TEM ; Tunnel ; Alpha-MnO2 ; Sodium ion battery ; Mn valence
- 刊名：Nano Energy
- 出版年：2016
- 出版时间：January 2016
- 年：2016
- 卷：19
- 期：Complete
- 页码：382-390
- 全文大小：3170 K
文摘
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Sub-Å TEM imaging of the tunneled structure of α-MnO2 stabilized by K+.
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Na+ insertion/extraction inside single α-MnO2 nanowire is dynamically tracked.
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Mn valence evolution during (de)sodiation is dynamically quantified.
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Direct comparison between sodiation- and lithiation-resulted tunnel instability.