Modeling of Solid-Oxide Electrolyser Cells: From H2, CO Electrolysis to Co-Electrolysis

Menon, V and Janardhanan, V and Deutschmann, O (2013) Modeling of Solid-Oxide Electrolyser Cells: From H2, CO Electrolysis to Co-Electrolysis. ECS Transactions, 57 (1). pp. 3207-3216. ISSN 1938-5862

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Abstract

In this analysis, we report an in-house model to describe the complex fundamental and functional interactions between various internal physico-chemical phenomena of a SOEC. Electrochemistry at the three-phase boundary is modeled using a modified Butler-Volmer approach that considers H2 and CO, individually, as electrochemically active species. Also, a multi-step elementary heterogeneous reaction mechanism for the thermo-catalytic H2/CO2 electrode chemistry, along with the dusty gas model (DGM) to account for multi-component diffusion of ideal gases through porous media, are used. The model is geometry independent. Results pertaining to detailed chemical processes within the cathode, electrochemical behavior and irreversible losses during SOEC operation are demonstrated.

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IITH Creators:

IITH Creators	ORCiD
Janardhanan, V	http://orcid.org/0000-0002-3458-4169

Item Type:

Article

Additional Information:

We deeply value all the rewarding discussions with Prof. R. J. Kee and Dr. H. Zhu, at the Colorado School of Mines, on SOC modeling. Financial support by the Helmholtz Research School Energy-Related Catalysis is gratefully acknowledged.

Subjects:

Chemical Engineering > Biochemical Engineering

Divisions:

Department of Chemical Engineering

Depositing User:

Team Library

Date Deposited:

18 Mar 2015 11:39

Last Modified:

04 Dec 2017 04:49

URI:

http://raiithold.iith.ac.in/id/eprint/1408