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Electrochemically induced reversible solid state transformations: electrosynthesis of Ag2Cu2O4 by room temperature oxidation of Ag2Cu2O3

AuthorsMuñoz Rojas, David ; Oró, Judith ; Gómez-Romero, P. ; Fraxedas, J. ; Casañ Pastor, Nieves
KeywordsElectrochemical oxidation
Soft chemistry
Silver copper oxides
Issue DateSep-2002
CitationElectrochemistry Communications 4(9): 684-689 (2002)
AbstractElectrochemical oxidation at room temperature of a slurry of Ag2Cu2O3 yields a new silver copper oxide, formulated as Ag2Cu2O4, with one more atom of oxygen per unit formula, that can in turn revert to the original precursor. The resulting oxide presents a different electronic and crystal structure from its precursor, as shown by XPS, X-ray and electron diffraction. This phase transformation involves a radical structural change from a 3D to a 2D network, as well as electronic changes involving silver and oxygen. The potential of electrochemical techniques to induce crystal-chemical solid state transformations is analyzed.
Publisher version (URL)http://dx.doi.org/10.1016/S1388-2481(02)00433-2
Appears in Collections:(ICMAB) Artículos
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