In situ tailored nickel nano-catalyst layer for internal reforming hydrocarbon fueled SOFCs

Jae Ha Myung, Dragos Neagu, Mark Tham, John T.S. Irvine

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

2 Citations (Scopus)

Abstract

Conventional Ni cermet anodes suffer from carbon deposition when they are directly used with hydrocarbon fuels due to the negative effects of pyrolysis and Boudouard reactions. In this work, the use of a non-stoichiometric perovskite, La0.8Ce0.1Ni0.4Ti0.6O3, as a reforming layer in reducing atmospheres led to the surface being highly populated with homogeneously exsolved Ni nano particles. This catalyst layer was applied to Ni-GDC anode supported and ScSZ electrolyte supported cells to prevent carbon deposition and to stabilize operation with dry methane. The catalyst layer showed both excellent attachment to the Ni-GDC anode and resistance to carbon deposition. The performance of the Ni-GDC anode-supported cells with the catalyst layer was about 1.1 W/cm2 in hydrogen fuel which is similar to that seen without the use of a catalyst layer. For the ScSZ electrolyte supported cells, the catalyst layer improved the power density and stability when in operation with dry methane.

Original languageEnglish
Title of host publicationSolid Oxide Fuel Cells 14, SOFC 2015
EditorsK. Eguchi, S. C. Singhal
Pages1121-1128
Number of pages8
Edition1
ISBN (Electronic)9781607685395
DOIs
Publication statusPublished - 1 Jan 2015
Externally publishedYes
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: 26 Jul 201531 Jul 2015

Publication series

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

Conference

Conference14th 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
Period26/07/1531/07/15

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Keywords

  • nickel nano-catalyst
  • hydrocarbon fuels
  • carbon deposition

Cite this

Myung, J. H., Neagu, D., Tham, M., & Irvine, J. T. S. (2015). In situ tailored nickel nano-catalyst layer for internal reforming hydrocarbon fueled SOFCs. In K. Eguchi, & S. C. Singhal (Eds.), Solid Oxide Fuel Cells 14, SOFC 2015 (1 ed., pp. 1121-1128). (ECS Transactions; Vol. 68, No. 1). https://doi.org/10.1149/06801.1121ecst