Performance of SOFC power unit assisted by paper-structured catalyst

Y. Shiratori, M. Sakamoto, Q. T. Tran, Y. Uchiyama, N. Uchiyama

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

Abstract

Paper-structured catalyst (PSC) is a flexible catalyst material composed of inorganic fiber network loaded with metal catalyst which can be applied into cell stack to assist hydrocarbon reforming. Catalytic performance of PSC was considerably improved by the dispersion of Mg-Al hydrotalcite (HT) in the inorganic fiber network because of the formation of fine Ni particles and suppression of Ni loading on the inorganic fiber (SiO2-Al2O3) to cause coking. High temperature SOFCs can convert chemical energy of a fuel directly to electricity even in the feed of low calorie gas. The use of engine-exhaust, which contains unburned hydrocarbons, H2 and CO, as a fuel for SOFC is promising idea. Recently, a compact SOFC unit operated by the direct feed of engine-exhaust was developed by Atsumitec Co., Ltd. However, performance of the unit can easily deteriorate, unless the fuel is homogeneously supplied into the unit in which several numbers of stacks were arrayed. This study demonstrated that insertion of the HT-dispersed PSC into the real SOFC stack led to large increase in the unit performance because PSCs can boost up the output power of stacks placed at the positions where fuel is not well supplied.

Original languageEnglish
Title of host publicationSolid Oxide Fuel Cells 14, SOFC 2015
EditorsK. Eguchi, S. C. Singhal
PublisherElectrochemical Society Inc.
Pages2783-2788
Number of pages6
Edition1
ISBN (Electronic)9781607685395
DOIs
Publication statusPublished - Jan 1 2015
Event14th International Symposium on Solid Oxide Fuel Cells, SOFC 2015; held as part of the Electrochemical Society, ECS Conference on Electrochemical Energy Conversion and Storage - Glasgow, United Kingdom
Duration: Jul 26 2015Jul 31 2015

Publication series

NameECS Transactions
Number1
Volume68
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Other

Other14th International Symposium on Solid Oxide Fuel Cells, SOFC 2015; held as part of the Electrochemical Society, ECS Conference on Electrochemical Energy Conversion and Storage
CountryUnited Kingdom
CityGlasgow
Period7/26/157/31/15

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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    Shiratori, Y., Sakamoto, M., Tran, Q. T., Uchiyama, Y., & Uchiyama, N. (2015). Performance of SOFC power unit assisted by paper-structured catalyst. In K. Eguchi, & S. C. Singhal (Eds.), Solid Oxide Fuel Cells 14, SOFC 2015 (1 ed., pp. 2783-2788). (ECS Transactions; Vol. 68, No. 1). Electrochemical Society Inc.. https://doi.org/10.1149/06801.2783ecst