Electroreduction of H2O2 by Co3O4 and NiCo2O4 nanowires and β-Ni(OH)2 nanoplates grown on Ni foam

K. N. Hui; Cui Lei Yin; K. S. Hui; J. Y. Lee; Dianxue Cao; Guiling Wang

doi:10.1166/jnn.2012.5558

Electroreduction of H₂O₂ by Co₃O₄ and NiCo₂O₄ nanowires and β-Ni(OH)₂ nanoplates grown on Ni foam

K. N. Hui, Cui Lei Yin, K. S. Hui, J. Y. Lee, Dianxue Cao, Guiling Wang

Energy Materials Laboratory

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

Nanowires (Co₃O₄ and NiCo₂O₄) 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 H₂O₂ in an alkaline medium. Catalytic performance is investigated via cyclic voltammetry and chronoamperometry. The Co₃O₄ and NiCo₂O₄ nanowire electrodes exhibit much better catalytic activity, stability, and mass transfer properties for H₂O₂ electroreduction than pressed Co₃O₄ and NiCo₂O₄ nanoparticle/carbon/ PTFE electrodes. A current density of 101.8 mA cm^-2 and 122.7 mA cm^-2 are respectively achieved on Co₃O₄ and NiCo₂O₄ nanowire electrodes at -0.4 V in 0.4 mol/L H₂O₂ and 3.0 mol/L NaOH solution at room temperature.

Original language	English
Pages (from-to)	3615-3619
Number of pages	5
Journal	Journal of Nanoscience and Nanotechnology
Volume	12
Issue number	4
DOIs	https://doi.org/10.1166/jnn.2012.5558
Publication status	Published - 1 Apr 2012

Keywords

β-Ni(OH) nanoplate
Co O nanowire
Fuel cell
NiCo O nanowire

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10.1166/jnn.2012.5558

Cite this

@article{e8cbdaa7d32c44baa7fc9429c1f9b1f8,

title = "Electroreduction of H2O2 by Co3O4 and NiCo2O4 nanowires and β-Ni(OH)2 nanoplates grown on Ni foam",

abstract = "Nanowires (Co3O4 and NiCo2O4) 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 H2O2 in an alkaline medium. Catalytic performance is investigated via cyclic voltammetry and chronoamperometry. The Co3O4 and NiCo2O4 nanowire electrodes exhibit much better catalytic activity, stability, and mass transfer properties for H2O2 electroreduction than pressed Co3O4 and NiCo2O4 nanoparticle/carbon/ PTFE electrodes. A current density of 101.8 mA cm-2 and 122.7 mA cm-2 are respectively achieved on Co3O4 and NiCo2O4 nanowire electrodes at -0.4 V in 0.4 mol/L H2O2 and 3.0 mol/L NaOH solution at room temperature.",

keywords = "β-Ni(OH) nanoplate, Co O nanowire, Fuel cell, NiCo O nanowire",

author = "Hui, {K. N.} and Yin, {Cui Lei} and Hui, {K. S.} and Lee, {J. Y.} and Dianxue Cao and Guiling Wang",

year = "2012",

month = apr,

day = "1",

doi = "10.1166/jnn.2012.5558",

language = "English",

volume = "12",

pages = "3615--3619",

journal = "Journal of Nanoscience and Nanotechnology",

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TY - JOUR

T1 - Electroreduction of H2O2 by Co3O4 and NiCo2O4 nanowires and β-Ni(OH)2 nanoplates grown on Ni foam

AU - Hui, K. N.

AU - Yin, Cui Lei

AU - Hui, K. S.

AU - Lee, J. Y.

AU - Cao, Dianxue

AU - Wang, Guiling

PY - 2012/4/1

Y1 - 2012/4/1

N2 - Nanowires (Co3O4 and NiCo2O4) 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 H2O2 in an alkaline medium. Catalytic performance is investigated via cyclic voltammetry and chronoamperometry. The Co3O4 and NiCo2O4 nanowire electrodes exhibit much better catalytic activity, stability, and mass transfer properties for H2O2 electroreduction than pressed Co3O4 and NiCo2O4 nanoparticle/carbon/ PTFE electrodes. A current density of 101.8 mA cm-2 and 122.7 mA cm-2 are respectively achieved on Co3O4 and NiCo2O4 nanowire electrodes at -0.4 V in 0.4 mol/L H2O2 and 3.0 mol/L NaOH solution at room temperature.

AB - Nanowires (Co3O4 and NiCo2O4) 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 H2O2 in an alkaline medium. Catalytic performance is investigated via cyclic voltammetry and chronoamperometry. The Co3O4 and NiCo2O4 nanowire electrodes exhibit much better catalytic activity, stability, and mass transfer properties for H2O2 electroreduction than pressed Co3O4 and NiCo2O4 nanoparticle/carbon/ PTFE electrodes. A current density of 101.8 mA cm-2 and 122.7 mA cm-2 are respectively achieved on Co3O4 and NiCo2O4 nanowire electrodes at -0.4 V in 0.4 mol/L H2O2 and 3.0 mol/L NaOH solution at room temperature.

KW - β-Ni(OH) nanoplate

KW - Co O nanowire

KW - Fuel cell

KW - NiCo O nanowire

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