Modeling CO2 electrolysis in solid oxide electrolysis cell

Narasimhaiah, G and Janardhanan, V (2013) Modeling CO2 electrolysis in solid oxide electrolysis cell. Journal of Solid State Electrochemistry, 17 (8). pp. 2361-2370. ISSN 1432-8488

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A modified Butler-Volmer equation for the reduction of CO2 by considering multi-step single-electron transfer reactions is presented. Exchange current density formulations free from arbitrary order dependency on the partial pressures of reactants and products are proposed for Ni and Pt surfaces. Button cell simulations are performed for Ni-YSZ/YSZ/LSM, Pt-YSZ/YSZ/Pt, and Pt/YSZ/Pt systems using two different electrochemical models, and simulation results are compared against experimental observations. The first electrochemical model considers charge transfer reactions occurring at the interface between the electrode and dense electrolyte, and the second model considers the charge transfer reactions occurring throughout the thickness of the cermet electrode. Single-channel simulations are further performed to asses the O2 production capacity of CO2 electrolysis system

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IITH Creators:
IITH CreatorsORCiD
Janardhanan, V
Item Type: Article
Uncontrolled Keywords: Electrochemistry; Electrolysis; Kinetics; SOEC
Subjects: Chemical Engineering > Biochemical Engineering
Divisions: Department of Chemical Engineering
Depositing User: Team Library
Date Deposited: 28 Nov 2014 06:28
Last Modified: 28 Feb 2019 04:53
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