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The Structure and Properties of TiO2–Cu(II)–EDTA Ternary Surface Complexes

✍ Scribed by C.W. Schläpfer; N.N. Vlasova; S.K. Poznyak; A.I. Kokorin

Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
137 KB
Volume
239
Category
Article
ISSN
0021-9797

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✦ Synopsis

The formation, composition, structure, and electrochemical properties of ternary surface complexes between copper(II) and ethylenediaminetetraacetate adsorbed on TiO 2 xerogels and on thin-film TiO 2 electrodes from solutions of varying pH have been studied by potentiometry, EPR spectroscopy, and electrochemical methods. The results strongly indicate that, in contrast to other organic ligands, B-type ternary surface complexes are formed in this system. The organic ligand forms an isolating layer between the surface of the TiO 2 electrode and the redox-active copper ions.

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