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Title

Room temperature solid state transformation from Ag2Cu2O3 to Ag2Cu2O4 by Ozone Oxidation.

AuthorsMuñoz Rojas, David ; Fraxedas, J. ; Gómez-Romero, P. ; Casañ Pastor, Nieves
KeywordsOxidation
Ozone
Silver–copper oxides
Issue DateJan-2005
PublisherElsevier
CitationJournal of Solid State Chemistry 178(1): 295-305 (2005)
AbstractThe mixed silver–copper oxide, Ag2Cu2O4 has been previously synthesized by electrochemical oxidation of suspensions of the precursor Ag2Cu2O3 and also by direct oxidation/coprecipitation of soluble salts. This work shows how the transformation from Ag2Cu2O3 to Ag2Cu2O4 can take place in solid state at room temperature by ozonization of the precursor. The final phase is overstoichiometric in oxygen but shows the same structural features of the firstly described phase Ag2Cu2O4. The maximum content of oxygen achieved is 4.34 per unit formula. SEM micrograph of Ag2Cu2O4 nanocrystals obtained by room temperature ozonization of a Ag2Cu2O3 suspension
Publisher version (URL)http://dx.doi.org/10.1016/j.jssc.2004.11.018
URIhttp://hdl.handle.net/10261/15765
DOI10.1016/j.jssc.2004.11.018
ISSN0022-4596
Appears in Collections:(ICMAB) Artículos
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