ELECTRON TRANSPORT IN AND ELECTROCATALYSIS WITH POLYMERIC FILMS OF METALLOTETRAPHENYLPORPHYRINS.

Royce W. Murray, B. A. White, A. Bettelheim

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Amino-, hydroxy-, and pyrrole-substituted tetraphenylporphyrins undergo electrooxidative polymerizations analogous to those of aniline, phenol, and pyrrole, to form electroactive poly-porphyrin films on electrode surfaces. The voltammetry of a number of differently metallated forms of the poly-porphyrins has been studied as has the rate of electron-hopping diffusion within the polymers. The electron mobilities form a parallel to heterogenous electron transfer rate constants for corresponding metalloporphyrin monomers at solid electrode surfaces, consistent with lack of dominance of ionic or polymer chain motions on the barrier to electron transfers within the poly-porphyrin films. Films of the cobalt-metallated poly-porphyrins exhibit electrocatalytic activity toward reduction of dioxygen both in solutions and in the solid state.

Original languageEnglish
Title of host publicationPolymeric Materials Science and Engineering, Proceedings of the ACS Division of Polymeric Material
PublisherACS
Pages864
Number of pages1
ISBN (Print)0841210519
StatePublished - 1 Jan 1987
Externally publishedYes

Publication series

NamePolymeric Materials Science and Engineering, Proceedings of the ACS Division of Polymeric Material
Volume56
ISSN (Print)0743-0515

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