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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
XPS spectra peak fit results of OxPVA-IKVAV. (a,b) Deconvolution of C1s (a) and O1s (b) spectra; (c) single component spectrum of N1s; (d,e) no significant peak in K2p (d) and Mn2p (e) spectra.