Potential-Induced Electronic Structure Changes in Supercapacitor Electrodes Observed by In Operando Soft X-Ray Spectroscopy

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Title:	Potential-Induced Electronic Structure Changes in Supercapacitor Electrodes Observed by In Operando Soft X-Ray Spectroscopy
Authors:	Michael Bagge-Hansen;Brandon C. Wood;Tadashi Ogitsu;Trevor M. Willey;Ich C. Tran;Arne Wittstock;Monika M. Biener;Matthew D. Merrill;Marcus A. Worsley;Minoru Otani;Cheng-Hao Chuang;David Prendergast;Jinghua Guo;Theodore F. Baumann;Tony van Buuren;Jürgen Biener;Jonathan R. I. Lee
Contributors:	物理學系暨研究所
Date:	2014-12-15
Issue Date:	2015-03-10 18:22:48 (UTC+8)
Abstract:	The dynamic physiochemical response of a functioning graphene-based aerogel supercapacitor is monitored in operando by soft X-ray spectroscopy and interpreted through ab initio atomistic simulations. Unanticipated changes in the electronic structure of the electrode as a function of applied voltage bias indicate structural modifications across multiple length scales via independent pseudocapacitive and electric double layer charge storage channels.
Relation:	Advanced Materials 27(9), pp.1512-1518
DOI:	10.1002/adma.201403680
Appears in Collections:	[Graduate Institute & Department of Physics] Journal Article

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