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Nickel Electrodeposition on Silver for the Development of Solid Oxide Fuel Cell Anodes and Catalytic Membranes

Zadariana Jamil, Enrique Ruiz-Trejo

2017ennickelelectrodepositionsolid oxide fuel cellscatalytic membraneselectrochemistry

Abstract

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Nickel was electrodeposited on porous Ag/GDC (silver/Ce0.9Gd0.1O2-x) scaffolds and dense Ag/GDC composites for the fabrication of solid oxide fuel cell (SOFC) electrodes and catalytic membranes respectively. The objective of this study was to control the distribution and amount of nickel deposition on the Ag/GDC surfaces. A systematic cyclic voltammetry study was performed to understand the influence of operating conditions on the electrodeposition process. The results indicated that suitable operating conditions for nickel electrodeposition include a 1.1 M Ni2+ concentration in a Watts bath, deposition potential of −0.65 to −1.0 V vs. Ag/AgCl, temperature at 55 °C, sodium dodecyl sulfate (SDS) as the surfactant, pH 4.0±0.2, and an agitation rate of 500 rpm. The study also revealed that the nickel surface microstructure changed with deposition current densities due to the co-evolution of H2. It was found that both pulse and continuous electrodeposition modes allowed nickel to be deposited effectively; however, the pulse mode was favored as it resulted in an even distribution of nickel within the porous scaffolds with minimal H2 pitting.

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Cite This Work

@article{775a5f2c-5450-42ac-8a98-5977e44db186,
  title={Nickel Electrodeposition on Silver for the Development of Solid Oxide Fuel Cell Anodes and Catalytic Membranes},
  author={Zadariana Jamil and Enrique Ruiz-Trejo},
  year={2017},
  language={en}
}
TY  - JOUR
TI  - Nickel Electrodeposition on Silver for the Development of Solid Oxide Fuel Cell Anodes and Catalytic Membranes
AU  - Zadariana Jamil
AU  - Enrique Ruiz-Trejo
PY  - 2017
LA  - en
ER  -

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