Oxygen reduction at the basal plane of stress-annealed pyrolytic graphite in acetonitrile solutions

R. McIntyre, Daniel Alberto Scherson, W. Storck, H. Gerischer

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Abstract

The oxygen reduction process occurring at the basal plane of stress-annealed pyrolytic graphite (SAPG) in acetonitrile containing 0.2 M tetrapropylammonium tetrafluoroborate has been studied by cyclic voltammetry. The first step is reported to be outer-sphere electron transfer to form the superoxide radical anion. The second step is reported to be the reduction of products formed by a following chemical reaction involving the superoxide radical anion and the SAPG surface. Support for this mechanism is based on a comparative study using mercury electrodes.

Original languageEnglish
Pages (from-to)51-53
Number of pages3
JournalElectrochimica Acta
Volume32
Issue number1
DOIs
Publication statusPublished - 1987 Jan 1
Externally publishedYes

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ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Electrochemistry

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