Multi-scale Modelling of Electrochemically Promoted Systems
Multi-scale Modelling of Electrochemically Promoted Systems
复制标题
电化学促进系统的多尺度建模
DOI:
10.1016/j.electacta.2014.10.100
复制
发表时间:
2014
影响因子:
6.6
通讯作者:
Fragkopoulos I
中科院分区:
文献类型:
--
作者:
Fragkopoulos I
The objective of this work is the formulation of a multi-scale framework for electrochemically promoted systems. We have constructed a 3-Dimensional, isothermal, solid oxide single pellet, multi-scale framework, which describes the chemical and electrochemical phenomena taking place in a solid oxide single pellet under closed-circuit conditions, while the electrochemically promoted oxidation of CO over Pt/YSZ is used as an illustrative system. The proposed framework combines a 3-D macroscopic model which employs the finite element method (FEM) for the simulation of the charge transport and the electrochemical phenomena taking place in the pellet, and an in-house developed efficient implementation of a 2-D lattice kinetic Monte Carlo method (kMC) for the simulation of the reaction-diffusion micro-processes taking place on the catalytic surface. Comparison between the multi-scale framework and a macroscopic model [1] is carried out for several sets of operating conditions. Differences between the steady-state outputs of the two models are presented and discussed. A subsequent parametric study using the multi-scale framework is performed to investigate the effect of the gaseous species partial pressures and of the temperature on the CO2production rate.
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DOI:
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发表时间:
2001
期刊:
影响因子:
--
作者:
C. G. V. and;G. Pitselis
通讯作者:
G. Pitselis
DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
S. Guerrero;E. Wolf
通讯作者:
E. Wolf
DOI:
--
发表时间:
2008
期刊:
影响因子:
--
作者:
A. Katsaounis
通讯作者:
A. Katsaounis
DOI:
--
发表时间:
1999
期刊:
影响因子:
--
作者:
C. Vayenas;S. Bebelis
通讯作者:
S. Bebelis
DOI:
--
发表时间:
1996
期刊:
影响因子:
--
作者:
Ch. Karavasilis;S. Bebelis;C. Vayenas
通讯作者:
C. Vayenas