Rhodium electrodeposition on nickel electrodes used for urea electrolysis

Alexander Thomas Miller; Brian Lloyd Hassler; Gerardine G. Botte

doi:10.1007/s10800-012-0478-1

Rhodium electrodeposition on nickel electrodes used for urea electrolysis

Alexander Thomas Miller, Brian Lloyd Hassler, Gerardine G. Botte

Chemical Engineering

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117 Scopus citations

Abstract

A procedure for the constant potential electrodeposition of rhodium onto nickel electrodes, the subsequent surface characterizations, and electrochemical evaluation is presented. The resulting Ni/Rh electrodes were evaluated for their activity as anode catalysts for the electro-oxidation of urea. A detailed procedure for the electrodeposition of Rh onto Ni foil is provided. It is shown that the electrocatalytic performance of Ni/Rh electrodes on the oxidation of urea in alkaline medium is primarily influenced by two electrodeposition parameters: the applied electrodeposition potential and the loading of Rh (mg cm ^-2). An optimization for electrocatalytic performance based on the electrodeposition potential and Rh loading is demonstrated. The effect of these parameters on visual finish, surface morphology, and crystal structure was also studied.

Original language	English
Pages (from-to)	925-934
Number of pages	10
Journal	Journal of Applied Electrochemistry
Volume	42
Issue number	11
DOIs	https://doi.org/10.1007/s10800-012-0478-1
State	Published - Nov 2012

Keywords

Electrodeposition
Fuel cells
Hydrogen production
Urea electrolysis
Wastewater remediation

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10.1007/s10800-012-0478-1

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title = "Rhodium electrodeposition on nickel electrodes used for urea electrolysis",

abstract = "A procedure for the constant potential electrodeposition of rhodium onto nickel electrodes, the subsequent surface characterizations, and electrochemical evaluation is presented. The resulting Ni/Rh electrodes were evaluated for their activity as anode catalysts for the electro-oxidation of urea. A detailed procedure for the electrodeposition of Rh onto Ni foil is provided. It is shown that the electrocatalytic performance of Ni/Rh electrodes on the oxidation of urea in alkaline medium is primarily influenced by two electrodeposition parameters: the applied electrodeposition potential and the loading of Rh (mg cm -2). An optimization for electrocatalytic performance based on the electrodeposition potential and Rh loading is demonstrated. The effect of these parameters on visual finish, surface morphology, and crystal structure was also studied.",

keywords = "Electrodeposition, Fuel cells, Hydrogen production, Urea electrolysis, Wastewater remediation",

author = "Miller, {Alexander Thomas} and Hassler, {Brian Lloyd} and Botte, {Gerardine G.}",

note = "Funding Information: Acknowledgments The authors are thankful for the financial support from the Center for Electrochemical Engineering Research at Ohio University and the Department of Defense through the U.S. Army Construction Engineering Research Laboratory (W9132T-09-1-0001). The content of the work does not reflect the position or the policy of the U.S. government.",

year = "2012",

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doi = "10.1007/s10800-012-0478-1",

language = "English",

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T1 - Rhodium electrodeposition on nickel electrodes used for urea electrolysis

AU - Miller, Alexander Thomas

AU - Hassler, Brian Lloyd

AU - Botte, Gerardine G.

N1 - Funding Information: Acknowledgments The authors are thankful for the financial support from the Center for Electrochemical Engineering Research at Ohio University and the Department of Defense through the U.S. Army Construction Engineering Research Laboratory (W9132T-09-1-0001). The content of the work does not reflect the position or the policy of the U.S. government.

PY - 2012/11

Y1 - 2012/11

N2 - A procedure for the constant potential electrodeposition of rhodium onto nickel electrodes, the subsequent surface characterizations, and electrochemical evaluation is presented. The resulting Ni/Rh electrodes were evaluated for their activity as anode catalysts for the electro-oxidation of urea. A detailed procedure for the electrodeposition of Rh onto Ni foil is provided. It is shown that the electrocatalytic performance of Ni/Rh electrodes on the oxidation of urea in alkaline medium is primarily influenced by two electrodeposition parameters: the applied electrodeposition potential and the loading of Rh (mg cm -2). An optimization for electrocatalytic performance based on the electrodeposition potential and Rh loading is demonstrated. The effect of these parameters on visual finish, surface morphology, and crystal structure was also studied.

AB - A procedure for the constant potential electrodeposition of rhodium onto nickel electrodes, the subsequent surface characterizations, and electrochemical evaluation is presented. The resulting Ni/Rh electrodes were evaluated for their activity as anode catalysts for the electro-oxidation of urea. A detailed procedure for the electrodeposition of Rh onto Ni foil is provided. It is shown that the electrocatalytic performance of Ni/Rh electrodes on the oxidation of urea in alkaline medium is primarily influenced by two electrodeposition parameters: the applied electrodeposition potential and the loading of Rh (mg cm -2). An optimization for electrocatalytic performance based on the electrodeposition potential and Rh loading is demonstrated. The effect of these parameters on visual finish, surface morphology, and crystal structure was also studied.

KW - Electrodeposition

KW - Fuel cells

KW - Hydrogen production

KW - Urea electrolysis

KW - Wastewater remediation

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DO - 10.1007/s10800-012-0478-1

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SN - 0021-891X

VL - 42

SP - 925

EP - 934

JO - Journal of Applied Electrochemistry

JF - Journal of Applied Electrochemistry

IS - 11

ER -

Rhodium electrodeposition on nickel electrodes used for urea electrolysis

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