Home
Resources
Publications
Indium Tin Oxide Electrodes Modified With tris(2,2'-bipyridine-4,4'-dicarboxylic Acid) iron(II) and the Catalytic Oxidation of tris(4,4'-di-tert-butyl-2,2'-bipyridine) cobalt(II)

Indium Tin Oxide Electrodes Modified With tris(2,2'-bipyridine-4,4'-dicarboxylic Acid) iron(II) and the Catalytic Oxidation of tris(4,4'-di-tert-butyl-2,2'-bipyridine) cobalt(II)

C Michael Elliott, Stefano Caramori, Carlo A Bignozzi

Langmuir. 2005 Mar 29;21(7):3022-7.

PMID: 15779980

Abstract:

Indium tin oxide (ITO) electrodes modified by attachment of tris(2,2'-bipyridine-4,4'-dicarboxylic acid) iron(II) are examined. The mode of attachment is believed to be via the COOH functions in a manner similar to attachment of similar carboxylate-containing compounds to TiO2 surfaces. On the surface the complex resides as a stable electrochemically active monolayer. These modified electrodes can efficiently catalyze the oxidation of certain cobalt complexes, specifically, tris(4,4'-di-tert-butyl-2,2'-bipyridine) cobalt(II). On the unmodified ITO surfaces this cobalt complex is essentially electrochemically inert. The catalytic process approaches diffusional control at very slow scan speeds. Also, the electro-catalysis is sufficiently efficient that the peak oxidation current for Co2+, under certain conditions, exceeds the i(p) for the surface oxidation of the adsorbed Fe2+ by >x100 and the current for the uncatalyzed oxidation of Co2+ by considerably more than that.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP6813383	2,2'-Bipyridine-4,4'-dicarboxylic acid		6813-38-3	Price

As a specialist in analytical chemical Products, Alfa Chemistry offers consumers a wealth of raw materials and a full range of technologies and services.

QUICK LINKS

HEADQUARTERS

Tel:

Fax:

Email: