Theoretical study for properties of SOFC anode using three-dimensional porous structure simulator

T. Ogura, T. Ishimoto, R. Nagumo, Michihisa Koyama

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Anodic microstructure influences overpotential characteristics and the optimization of the microstructure for given anode materials and operating conditions is challenging. In this study, we have tested enormous number of microstructures of Ni-YSZ cermet anode using the porous structure simulator developed previously. As a result of overpotential calculations, we found anode structure giving superior overpotential characteristics with different microstructures. Further, our analyses clarified that consideration of only triple-phase boundary length is not enough to explain the overpotential dependence on microstructures. We therefore introduced a new index to relate overpotential characteristics with porous microstructures by taking into account both triple-phase boundary length and its spatial distribution.

Original languageEnglish
Title of host publicationECS Transactions - Solid Oxide Fuel Cells 11 (SOFC-XI)
Pages1847-1853
Number of pages7
Edition2 PART 3
DOIs
Publication statusPublished - Dec 1 2009
Event11th International Symposium on Solid Oxide Fuel Cells (SOFC-XI)- 216th ECS Meeting - Vienna, Austria
Duration: Oct 4 2009Oct 9 2009

Publication series

NameECS Transactions
Number2 PART 3
Volume25
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Other

Other11th International Symposium on Solid Oxide Fuel Cells (SOFC-XI)- 216th ECS Meeting
CountryAustria
CityVienna
Period10/4/0910/9/09

Fingerprint

Solid oxide fuel cells (SOFC)
Anodes
Simulators
Microstructure
Phase boundaries
Spatial distribution

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Ogura, T., Ishimoto, T., Nagumo, R., & Koyama, M. (2009). Theoretical study for properties of SOFC anode using three-dimensional porous structure simulator. In ECS Transactions - Solid Oxide Fuel Cells 11 (SOFC-XI) (2 PART 3 ed., pp. 1847-1853). (ECS Transactions; Vol. 25, No. 2 PART 3). https://doi.org/10.1149/1.3205726

Theoretical study for properties of SOFC anode using three-dimensional porous structure simulator. / Ogura, T.; Ishimoto, T.; Nagumo, R.; Koyama, Michihisa.

ECS Transactions - Solid Oxide Fuel Cells 11 (SOFC-XI). 2 PART 3. ed. 2009. p. 1847-1853 (ECS Transactions; Vol. 25, No. 2 PART 3).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ogura, T, Ishimoto, T, Nagumo, R & Koyama, M 2009, Theoretical study for properties of SOFC anode using three-dimensional porous structure simulator. in ECS Transactions - Solid Oxide Fuel Cells 11 (SOFC-XI). 2 PART 3 edn, ECS Transactions, no. 2 PART 3, vol. 25, pp. 1847-1853, 11th International Symposium on Solid Oxide Fuel Cells (SOFC-XI)- 216th ECS Meeting, Vienna, Austria, 10/4/09. https://doi.org/10.1149/1.3205726
Ogura T, Ishimoto T, Nagumo R, Koyama M. Theoretical study for properties of SOFC anode using three-dimensional porous structure simulator. In ECS Transactions - Solid Oxide Fuel Cells 11 (SOFC-XI). 2 PART 3 ed. 2009. p. 1847-1853. (ECS Transactions; 2 PART 3). https://doi.org/10.1149/1.3205726
Ogura, T. ; Ishimoto, T. ; Nagumo, R. ; Koyama, Michihisa. / Theoretical study for properties of SOFC anode using three-dimensional porous structure simulator. ECS Transactions - Solid Oxide Fuel Cells 11 (SOFC-XI). 2 PART 3. ed. 2009. pp. 1847-1853 (ECS Transactions; 2 PART 3).
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