Predictive Microkinetic Model for Solid Oxide Fuel Cell Patterned Anode: Based on an Extensive Literature Survey and Exhaustive Simulations

Shixue Liu, Arief Muhammad, Kazuya Mihara, Takayoshi Ishimoto, Tomofumi Tada, Michihisa Koyama

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

A one-dimensional microkinetic model combining H and O migration mechanisms is used to simulate the surface diffusion, chemical and charge-transfer reactions near the triple phase boundary of the Ni/YSZ patterned anode. A number of parameter sets are exhaustively examined in the microkinetic schemes to obtain a proper set for the explanation of experimental observations. We find a set of parameters free from unphysical fitting parameters, and can explain a large activity gap of patterned anodes reported in literature. From our simulation, we found that the lower activity patterned anode is kinetically governed by both H and O migration across the triple phase boundary, while the higher activity patterned anodes are governed by the O migration.

Original languageEnglish
Pages (from-to)19069-19079
Number of pages11
JournalJournal of Physical Chemistry C
Volume121
Issue number35
DOIs
Publication statusPublished - Sep 7 2017

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Energy(all)
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films

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