Design of anodes for IT SOFC: Effect of complex oxide promoters and pd on activity and stability in methane steam reforming of Ni/YSZ (ScSZ) cermets

Vladislav A. Sadykov*, Natalia V. Mezentseva, Rimma V. Bunina, Galina M. Alikina, Anton I. Lukashevich, Vladimir A. Rogov, Ella M. Moroz, Vladimir I. Zaikovskii, Arcady Ishchenko, Oleo F. Bobrenok, Alevtina Smirnova, John Irvine, Oleksandr Vasylyev

*Corresponding author for this work

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

6 Citations (Scopus)

Abstract

Effect of fluorite-like or perovskite-like complex oxide promoters and Pd on the performance of Ni/8YSZ and Ni/ScSZ anode materials in CH4 steam reforming (SR) or selective oxidation (SO) by O-2 into syngas was studied. The spatial uniformity of dopants distribution in composites was controlled by TEM combined with EDX analysis, while the lattice oxygen mobility and reactivity were estimated by CH4 and H-2 temperature-programmed reduction (TPR). The oxide promoters suppress the coke deposition even at stoichiometric H2O/CH4 ratio, while doping by Pd ensures a good performance at moderate (similar to 550 degrees C) temperatures required for the Intermediate -Temperature Solid Oxide Fuel Cells (IT SOFC) operation.

Original languageEnglish
Title of host publicationSOLID-STATE IONICS-2006
EditorsE Traversa, TR Armstrong, C Masquelier, Y Sadaoka
Place of PublicationWARRENDALE
PublisherMATERIALS RESEARCH SOCIETY
Pages205-210
Number of pages6
ISBN (Print)978-1-55899-929-9
Publication statusPublished - 2007
EventSymposium on Solid-State Ionics held at the 2006 MRS Fall Meeting - Boston, Morocco
Duration: 27 Nov 20061 Dec 2006

Publication series

NameMaterials Research Society Symposium Proceedings
PublisherMATERIALS RESEARCH SOCIETY
Volume972
ISSN (Print)0272-9172

Conference

ConferenceSymposium on Solid-State Ionics held at the 2006 MRS Fall Meeting
Country/TerritoryMorocco
CityBoston
Period27/11/061/12/06

Keywords

  • NI
  • PERFORMANCE

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