Electrochemical and photoelectrochemical studies of copper and cobalt phthalocyanine-tin oxide electrodes

V. Rogers Shepard, Neal R Armstrong

Research output: Contribution to journalArticle

57 Citations (Scopus)

Abstract

Tetrasulfonated copper and cobalt phthalocyanines have been bound to SnO2 electrode surfaces modified by either (γ-aminopropyl)triethoxysilane or 3-(N-(2-aminoethyl)aminopropyl)trimethoxysilanes. The electrochemical behavior of the surface bound dye was compared with that of the solution and absorbed forms at SnO2 in Me2SO and aqueous media. A stable reversible redox couple was seen on the cobalt phthalocyanine electrodes/SnO2 in aqueous media. Concentrations of surface bound phthalocyanines were easily detected by monitoring the Cu(2p1/2,3/2) and N(1s) X-ray photoelectron transitions. SnO2 electrodes with bound phthalocyanine and SnO2 electrodes in contact with solutions of phthalocyanines showed similar photoelectrochemical response to the oxidation of oxalate or ascorbate.

Original languageEnglish (US)
Pages (from-to)1268-1276
Number of pages9
JournalJournal of Physical Chemistry
Volume83
Issue number10
StatePublished - 1979

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cobalt oxides
Tin oxides
tin oxides
Cobalt
Copper
copper
Electrodes
electrodes
cobalt
Oxalates
oxalates
Electron transitions
Photoelectrons
Contacts (fluid mechanics)
photoelectrons
Coloring Agents
Dyes
dyes
X rays
Oxidation

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

Electrochemical and photoelectrochemical studies of copper and cobalt phthalocyanine-tin oxide electrodes. / Rogers Shepard, V.; Armstrong, Neal R.

In: Journal of Physical Chemistry, Vol. 83, No. 10, 1979, p. 1268-1276.

Research output: Contribution to journalArticle

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