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Initial Characterisation of Cerium Doped Neodymium Cuprates for Solid Oxide Fuel Cell Applications

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Author(s)

M. Cassidy, J. T. S. Irvine

School/Research organisations

Abstract

Electrically conducting ceramics are of great interest for high temperature applications such as current collectors and contacts in solid oxide fuel cells (SOFCs). This paper presents the initial characterisation of the high temperature electrical properties of cerium doped neodymium copper oxide (Nd(2-x)Ce(x)CuO(4+delta)) (NCCO) with respect to Cc content, temperature and oxygen partial pressure for possible SOFC applications. Initial results have shown conductivities in air up to 110cm(-1) at 900 degrees C and 60Scm(-1) at 800 degrees C, with the highest conductivity to date at x = 0.20. With reducing p(O(2)) the conductivity initially rises before dropping significantly. Specimens sintered at 950 degrees C exhibited significant improvement in conductivity with time at temperature suggesting continued in-situ microstructural development. NCCO therefore presents itself as a possible candidate for use as a cathode contact material, sintering to a strong, highly conductive layer at stack operating conditions.

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Details

Original languageEnglish
Title of host publicationSOLID OXIDE FUEL CELLS 10 (SOFC-X), PTS 1 AND 2
EditorsK Eguchi, SC Singhai, H Yokokawa, H Mizusaki
Place of PublicationPENNINGTON
PublisherELECTROCHEMICAL SOCIETY INC
Pages1235-1241
Number of pages7
ISBN (Print)978-1-56677-554-0
DOIs
Publication statusPublished - 2007
Event10th International Symposium on Solid Oxide Fuel Cells - Nara, Japan
Duration: 3 Jun 20078 Jun 2007

Publication series

NameECS Transactions
PublisherELECTROCHEMICAL SOCIETY INC
Volume7
ISSN (Print)1938-5862

Conference

Conference10th International Symposium on Solid Oxide Fuel Cells
CountryJapan
CityNara
Period3/06/078/06/07

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