Copper speciation by analytical electron spectroscopies: Case of the intercalation phase Cu0.5V2O5 · 0.5H2O

C Malitesta,J.‐L Parize,L Torsi,D Ballivet‐Tkatchenko,P G Zambonin,J Galy,J M Savariault,L Sabbatini

doi:10.1002/sia.740190195

Copper speciation by analytical electron spectroscopies: Case of the intercalation phase Cu0.5V2O5 · 0.5H2O

C Malitesta, J.‐L Parize + Show 6 more

https://doi.org/10.1002/sia.740190195

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Journal: Surface and Interface Analysis	Publication Date: Jun 1, 1992
Citations: 2

Affiliation: Polytechnic University of Bari, University of Bari Aldo Moro, French National Centre for Scientific Research, Laboratoire de Chimie de Coordination

#X‐ray‐excited Auger Electron Spectroscopy #Intercalation Phase + Show 8 more

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Abstract

AbstractOctahedral‐Cu(II) and Cu(I) species have been found on the surface of the intercalation phase Cu0.5V2O5 · 0.5H2O by XPS and x‐ray‐excited Auger Electron Spectroscopy (XAES). The reduced species appears more abundant in the surface region, as indicated by variable‐angle XPS measurements. Reduction or dehydration of the substance preserve its qualitative composition, confirming Cu speciation and showing that water is not Cu‐bonded. Vanadium chemistry is in good agreement with results obtained on copper speciation, which consider an intermediate electronic strucure between VO2 and V2O5 for the intercalation phase.

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