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Electrochemical Properties of [Ru(edta)(H2O)]−Immobilized on a Zirconium(IV) Oxide-Coated Silica Gel Surface

✍ Scribed by Yoshitaka Gushikem; Carlos R.M. Peixoto; Ubirajara P.Rodrigues Filho; Lauro T. Kubota; Eduardo Stadler

Publisher: Elsevier Science
Year: 1996
Tongue: English
Weight: 122 KB
Volume: 184
Category: Article
ISSN: 0021-9797
DOI: 10.1006/jcis.1996.0616

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✦ Synopsis

of the material immersed in a solution of the ligand L (L Å [Ru(edta)(H 2 O)] 0 is strongly adsorbed on a zirconium(IV) SCN 0 , pyridine, 4-cyanopyridine, and pyrazine). oxide-coated silica gel surface. The immobilized complex showed an electrochemical response due to the Ru(II)/Ru(III) redox cou-EXPERIMENTAL ple. By substituting the coordinated water molecule in the adsorbed complex, the midpoint potentials shifted in the order (in Zirconium(IV) Oxide Coated on the Silica Gel Surface mV) water, 0290; thiocyanate, 0200; pyridine, 0180; 4-cyanopyridine, 080; and pyrazine, 050 vs SCE.

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