Please use this identifier to cite or link to this item:
|Title:||XPS studies on (PEO)nLiCF3SO3 and (PEO)nCu(CF3SO3)2 polymer electrolytes||Authors:||Martin-Vosshage, D.
|Issue Date:||Oct-1995||Citation:||Martin-Vosshage, D.,Chowdari, B.V.R. (1995-10). XPS studies on (PEO)nLiCF3SO3 and (PEO)nCu(CF3SO3)2 polymer electrolytes. Electrochimica Acta 40 (13-14) : 2109-2114. ScholarBank@NUS Repository.||Abstract:||PEOnLiCF3SO3 and PEOnCu(CF3SO3)2 with varying composition of n = 8-128 have been studied using X-ray Photoelectron Spectroscopy (XPS). The binding energies for various core levels of the elements present in these polymer electrolytes and their observed chemical shifts are obtained for different salt concentrations. It is shown that the interaction between PEO and each salt is based on a complexation between the ether oxygen of PEO and the cation of the salt as well as an effective cross-linking between the polymer chains of PEO through the anion of the salt. While in PEO there is only one type of carbon atom, the above interactions in salt added PEO system have lead to the formation of different inequivalent carbon configurations. The observed variations of intensities of various peaks with increased salt concentration are interpreted in terms of varying coordination of the elements present in these polymer electrolytes and their varying strength of interaction. The usefulness and limitations of XPS to unravel the complicated structural aspects in these materials has been demonstrated. © 1995.||Source Title:||Electrochimica Acta||URI:||http://scholarbank.nus.edu.sg/handle/10635/98600||ISSN:||00134686|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.