Template-assisted synthesis of Ni–Co bimetallic nanowires for urea electrocatalytic oxidation

Wei Yan; Dan Wang; Gerardine G. Botte

doi:10.1007/s10800-015-0846-8

Template-assisted synthesis of Ni–Co bimetallic nanowires for urea electrocatalytic oxidation

Wei Yan, Dan Wang, Gerardine G. Botte

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

36 Scopus citations

Abstract

Nickel–cobalt bimetallic nanowire electrocatalyts (NCNE), synthesized through anodic aluminium oxide templates, were evaluated for urea electro-oxidation in alkaline medium for their applications in wastewater remediation, hydrogen production, and fuel cells. Compared to bulk nickel film electrocatalysts (NFE), the NCNE resulted in a ca. 110 mV decrease in the overpotential of urea electro-oxidation. In addition, the NCNE exhibited higher oxidation current density and current efficiency for urea electrolysis than those of NFE and nickel–cobalt bimetallic film electrocatalysts (NCFE). The maximum current efficiency for urea electro-oxidation on the NCNE reached up to 81 %, which is ~25 % higher than those of the NFE and NCFE.

Original language	English
Pages (from-to)	1217-1222
Number of pages	6
Journal	Journal of Applied Electrochemistry
Volume	45
Issue number	11
DOIs	https://doi.org/10.1007/s10800-015-0846-8
State	Published - Nov 1 2015

Keywords

Anodic aluminium oxide (AAO) templates
Hydrogen production
Ni–Co bimetallic nanowires
Urea electro-oxidation
Wastewater remediation

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10.1007/s10800-015-0846-8

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title = "Template-assisted synthesis of Ni–Co bimetallic nanowires for urea electrocatalytic oxidation",

abstract = "Nickel–cobalt bimetallic nanowire electrocatalyts (NCNE), synthesized through anodic aluminium oxide templates, were evaluated for urea electro-oxidation in alkaline medium for their applications in wastewater remediation, hydrogen production, and fuel cells. Compared to bulk nickel film electrocatalysts (NFE), the NCNE resulted in a ca. 110 mV decrease in the overpotential of urea electro-oxidation. In addition, the NCNE exhibited higher oxidation current density and current efficiency for urea electrolysis than those of NFE and nickel–cobalt bimetallic film electrocatalysts (NCFE). The maximum current efficiency for urea electro-oxidation on the NCNE reached up to 81 %, which is ~25 % higher than those of the NFE and NCFE.",

keywords = "Anodic aluminium oxide (AAO) templates, Hydrogen production, Ni–Co bimetallic nanowires, Urea electro-oxidation, Wastewater remediation",

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AB - Nickel–cobalt bimetallic nanowire electrocatalyts (NCNE), synthesized through anodic aluminium oxide templates, were evaluated for urea electro-oxidation in alkaline medium for their applications in wastewater remediation, hydrogen production, and fuel cells. Compared to bulk nickel film electrocatalysts (NFE), the NCNE resulted in a ca. 110 mV decrease in the overpotential of urea electro-oxidation. In addition, the NCNE exhibited higher oxidation current density and current efficiency for urea electrolysis than those of NFE and nickel–cobalt bimetallic film electrocatalysts (NCFE). The maximum current efficiency for urea electro-oxidation on the NCNE reached up to 81 %, which is ~25 % higher than those of the NFE and NCFE.

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