Electrochemical Study on Decomposition of Hydrogen Peroxide with Fe(II)

Jing Yi Kao, Chong Mou Wang

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Decomposition of H2O2 with Fe2+ was studied with SnO2 electrodes. By chronoamperometric and voltammetric techniques, the diffusion coefficients of Fe3* and H 2O2 were estimated to be 5 × 10‐6 and 2 × 10−5 cm2/s, respectively; the rate of decomposition of H2O2 with Fe2+ was proportional to [H2O2]1/2·[Fe2+]2 at a smaller concentration of Fe2+, but to [H2O2]1/2·[Fe2+] when [Fe2+] was increased, indicating the formation of ferryl ion and the electron exchange between it and Fe2+ playing important roles. This catalytic decomposition. was dependent on pH; the maximum rate was observed to occur about pH = 1.5.

Original languageEnglish
Pages (from-to)533-538
Number of pages6
JournalJournal of the Chinese Chemical Society
Volume41
Issue number5
DOIs
Publication statusPublished - 1994 Oct

Keywords

  • Catalytic disproportionation
  • Electrochemistry
  • Ferryl ion
  • Hydrogen peroxide

ASJC Scopus subject areas

  • Chemistry(all)

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