Preparation and investigation of Cu doped (Pr0.5Nd0.5)0.7Ca0.3CrO3-δ ceramic interconnect materials

Qing Wen Gu, Yong Hong Chen, Dong Tian, Xiao Yong Lu, Yan Zhi Ding, Lin Bin

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

(Pr0.5Nd0.5)0.7Ca0.3Cr1-xCuxO3-δ (PNCCCx x=0, 0.5, 0.1, 0.15, 0.2) interconnect material and electro-lyte powders of Sm0.2Ce0.8O1.9 (SDC) were synthesized by citric acid nitrates self-propagating combustion method.The phase and microstructure of the sintering samples were investigated by X-ray diffraction and scanning electr-on microscope, respectively. The electrical conductivity of the samples were measured by four-probe technique.The results indicated that there is no new-phase were detected after co-firing between Cu-doping PNCC and SDC at 1350°C for 5 h. In air or H2 atmosphere, the conductivity of the sintering ceramics increasing with temperature, as well as the Cu-doped contents. At 800°C, the conductivity for PNCCC0.05 reached 37.54S/cm in air, and themaximum of PNCCC/SDC reached 44.52 S/cm in air 30.68 S/cm in H2, respectively. The average thermal expansion coefficient of the series ceramics is between10.4×10-6 K-1 to 10.8×10-6K-1 at the RT-1000°C, which is close to that of the SDC electrolyte. Our results indicate that the PNCCC compounds is a very promising interconnect material for intermediate solid oxide fuel cells.

Original languageEnglish (US)
Title of host publicationRenewable Energy and Environmental Technology
Pages2950-2958
Number of pages9
DOIs
StatePublished - Jan 1 2014
Event2013 International Conference on Renewable Energy and Environmental Technology, REET 2013 - Jilin, China
Duration: Sep 21 2013Sep 22 2013

Publication series

NameApplied Mechanics and Materials
Volume448-453
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482

Other

Other2013 International Conference on Renewable Energy and Environmental Technology, REET 2013
CountryChina
CityJilin
Period09/21/1309/22/13

Keywords

  • Ceramic interconnect materials
  • Cu dopant
  • Solid oxide fuel cell
  • TEC

ASJC Scopus subject areas

  • Engineering(all)

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