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Journal of Applied Electrochemistry

, Volume 36, Issue 9, pp 1035–1041 | Cite as

Electrooxidation of benzyl alcohol and benzaldehyde on a nickel oxy-hydroxide electrode in a filter-press type cell

  • A.J. Motheo
  • G. Tremiliosi-Filho
  • E.R. Gonzalez
  • K.B KokohEmail author
  • J.-M. Léger
  • C. Lamy
Article

Abstract

The electrooxidation of benzyl alcohol and benzaldehyde in alkaline medium was carried out in a filter-press type cell on a nickel oxy-hydroxide electrode under different experimental conditions. An overpotential occurs in the presence of organic molecules in the solution shifting oxygen evolution towards higher potentials. The results obtained were conclusive that benzyl alcohol and benzaldehyde electrooxidation on NiOOH layers yielded benzoic acid as the main final reaction product. Chromatographic analysis of the bulk solution showed that the electrocatalytic oxidation of harmful molecules was carried out until the formation of acid compounds (benzoic acid) as an ultimate stage, suggesting that a Ni anode can be used successfully for waste remediation.

Keywords

benzaldehyde benzyl alcohol electrooxidation filter-press cell nickel oxy-hydroxide electrode 

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Notes

Acknowledgements

This work was mainly conducted within under the framework of a collaborative programme between the USP (University of São Paulo) and the COFECUB (Comité Français d’Evaluation de la Coopération Universitaire avec le Brésil). The authors thank Mrs. R Colombo and Miss D. M. dos Anjos for their help during the chromatographic analyses. AJM, GTF and ERG also thank FAPESP, CNPq and CAPES, Brazil.

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Copyright information

© Springer Science+Business Media B.V. 2006

Authors and Affiliations

  • A.J. Motheo
    • 1
  • G. Tremiliosi-Filho
    • 1
  • E.R. Gonzalez
    • 1
  • K.B Kokoh
    • 2
    Email author
  • J.-M. Léger
    • 2
  • C. Lamy
    • 2
  1. 1.Instituto de Química de São CarlosUniversidade de São PauloSão CarlosBrazil
  2. 2.LACCO – Equipe Electrocatalyse, UMR 6503CNRS – Université de PoitiersPoitiers cedexFrance

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