Oxygen reduction in an acid medium - electrocatalysis by CoNPc (1,2) impregnated on a carbon black support - effect of loading and heat treatment

A. Biloul, F. Coowar, O. Contamin, G. Scarbeck, M. Savy, D.M.W. van den Ham, J. Riga, J.J. Verbist

    Research output: Contribution to journalArticleAcademicpeer-review

    22 Citations (Scopus)
    123 Downloads (Pure)

    Abstract

    O2 reduction in an acid medium has been investigated on a transition metal macrocycle, CoNPc(1,2), impregnated on a carbon black support with a high dibutylphthalate adsorption value, using a rotating disk electrode and voltammetry techniques described previously, combined with X-ray photoelectron spectroscopy measurements. Optimal activity was found for a bilayer coverage (n = 2) at 17%-18% w/w loading. Heat treatment seems to be beneficial for n 3: it increases the overall number N of exchanged electrons and improves the electrode wetting. For the most active samples, mixed Co(II)/Co(III) valencies were displayed.
    Original languageEnglish
    Pages (from-to)189-204
    JournalJournal of electroanalytical chemistry
    Volume350
    Issue number1-2
    DOIs
    Publication statusPublished - 1993

    Fingerprint

    Dive into the research topics of 'Oxygen reduction in an acid medium - electrocatalysis by CoNPc (1,2) impregnated on a carbon black support - effect of loading and heat treatment'. Together they form a unique fingerprint.

    Cite this