Modeling of an anode-supported Ni–YSZ|Ni–ScSZ|ScSZ|LSM–ScSZ multiple layers SOFC cell

Shi, Yixiang; Cai, Ningsheng; Li, Chen; Bao, Cheng; Croiset, Eric; Qian, Jia; Hu, Qian; Wang, Shaorong

doi:10.1016/j.jpowsour.2007.04.037

Cited by 80 publications

(41 citation statements)

References 31 publications

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“…For example, it may be chosen so that the equilibrium potential of the cathode vanishes and that of the anode becomes equal to the reversible cell potential (Zhu and Kee, 2007), or such that the equilibrium potential at the anode becomes zero and that at the cathode equal to the reversible cell potential (Shi et al, 2007;Wang, 2004).…”

Section: Modeling Of Electrochemistrymentioning

confidence: 99%

Numerical modeling of solid oxide fuel cells

Kosinski

Hoffmann

et al. 2008

Chemical Engineering Science

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This paper presents a numerical model for a planar solid oxide fuel cell (SOFC) with mixed ionic-electronic conducting electrodes. Transport of positive or negative charges, which takes place in the direction of down-or up-gradient electric potential, respectively, within the composite electrodes and through the electrolyte membrane, is mimicked by making use of an algorithm for Fickian diffusion in the commercial software. The output cell voltage, which is the potential difference between the two current collectors, is fixed at a given value. The coupled equations describing the conservation of mass, momentum and energy and the chemical and electrochemical processes are solved using the commercial package Star-CD, augmented with subroutines developed in-house. Results for the concentration of chemical species and the distributions of temperature and current density in an anode-supported SOFC with direct internal reforming are presented and discussed. The potential for using this model as a general numerical tool to study the impact of the detailed processes taking place in solid oxide fuel cells is discussed.

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Section: Modeling Of Electrochemistrymentioning

confidence: 99%

Numerical modeling of solid oxide fuel cells

Kosinski

Hoffmann

et al. 2008

Chemical Engineering Science

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“…The detailed explanation and description can be found in our previous papers [10][11][12][13][14][15] The effective Ni surface area per unit volume (SNi) is based on the particle coordination number theory in binary random packing of spheres and the percolation theory. [16,17] …”

Section: Table 1 Heterogeneous Reaction Mechanism On Ni-based Catalysmentioning

confidence: 99%

“…The governing equations for charge balance and mass balance are summarized in Table 3, which have been described in details in our previous work [10][11][12][13][14][15]. The extended Fick's model (EFM) considering Knudsen diffusion and molecular diffusion [17,18,24,25] is adopted to simulate the mass transfer in the porous electrodes.…”

Section: Governing Equationsmentioning

confidence: 99%

Elementary reaction modeling and experimental characterization of solid oxide fuel-assisted steam electrolysis cells

Luo

Shi

et al. 2014

International Journal of Hydrogen Energy

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“…Modeling of distributed charge transfer is explained in [8,10,7]. An interested reader may also refer [15,[17][18][19] for various aspects of species transport model. Very briefly the button cell model solves reaction diffusion equation for species transport in the electrodes along its thickness.…”

Section: Numerical Modelmentioning

confidence: 99%

Modeling CO2 electrolysis in solid oxide electrolysis cell

Narasimhaiah

Janardhanan

2013

J Solid State Electrochem

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A modified Butler-Volmer equation for the reduction of CO 2 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 O 2 production capacity of CO 2 electrolysis system.

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Modeling of an anode-supported Ni–YSZ|Ni–ScSZ|ScSZ|LSM–ScSZ multiple layers SOFC cell

Cited by 80 publications

References 31 publications

Numerical modeling of solid oxide fuel cells

Numerical modeling of solid oxide fuel cells

Elementary reaction modeling and experimental characterization of solid oxide fuel-assisted steam electrolysis cells

Modeling CO2 electrolysis in solid oxide electrolysis cell

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