Electroreduction of H 2O 2 by Co 3O 4 and NiCo 2O 4 nanowires and β-Ni(OH) 2 nanoplates grown on Ni foam

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review

4 Scopus Citations
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Author(s)

  • K. N. Hui
  • Cui-Lei Yin
  • K. S. Hui
  • J. Y. Lee
  • Dianxue Cao
  • And 1 others
  • Guiling Wang

Detail(s)

Original languageEnglish
Pages (from-to)3615-3619
Journal / PublicationJournal of Nanoscience and Nanotechnology
Volume12
Issue number4
Publication statusPublished - 2012

Abstract

Nanowires (Co 3O 4 and NiCo 2O 4) and nanoplates (β-Ni(OH) 2) grown on Ni foam are successfully prepared by a template-free method and used as cathode electrodes for the electroreduction of H 2O 2 in an alkaline medium. Catalytic performance is investigated via cyclic voltammetry and chronoamperometry. The Co 3O 4 and NiCo 2O 4 nanowire electrodes exhibit much better catalytic activity, stability, and mass transfer properties for H 2O 2 electroreduction than pressed Co 3O 4 and NiCo 2O 4 nanoparticle/carbon/ PTFE electrodes. A current density of 101.8 mA cm -2 and 122.7 mA cm -2 are respectively achieved on Co 3O 4 and NiCo 2O 4 nanowire electrodes at -0.4 V in 0.4 mol/L H 2O 2 and 3.0 mol/L NaOH solution at room temperature. © 2012 American Scientific Publishers.

Research Area(s)

  • β-Ni(OH) 2 nanoplate, Co 3O 4 nanowire, Fuel cell, NiCo 2O 4 nanowire

Citation Format(s)

Electroreduction of H 2O 2 by Co 3O 4 and NiCo 2O 4 nanowires and β-Ni(OH) 2 nanoplates grown on Ni foam. / Hui, K. N.; Yin, Cui-Lei; Hui, K. S.; Lee, J. Y.; Cao, Dianxue; Wang, Guiling.

In: Journal of Nanoscience and Nanotechnology, Vol. 12, No. 4, 2012, p. 3615-3619.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review