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

Authors:Muñoz-Rojas, David
Oró Solé, Judith
Gómez-Romero, P.
Fraxedas, J.
Casañ Pastor, Nieves
Keywords:Electrochemical oxidation, Slurries, Soft chemistry, Silver copper oxides
Issue Date:Sep-2002
Citation:Electrochemistry Communications 4: 684-9 (2002)
Abstract:Electrochemical 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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