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Fabrication and conductivities of CeO2-based oxygen-ion conductors doped by M2O3 (M=La, Nd, Sm and/or Ga)
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering.
2008 (English)In: Key Engineering Materials, 2008, 244-246 p.Conference paper, Published paper (Refereed)
Abstract [en]

Ceria oxygen-ion conductors doped with M2O3 (M=La, Nd, Sm and/or Ga) were prepared by a wet chemical method. Phases were analyzed by X-ray diffraction method and conductivities were measured by using AC impedance analyzer. The results showed that Ga2O3-CeO 2 solid solution with 17 nm grains and pure fluorite phase had been obtained even at calcination temperature of 800 °C for 5 hs. Conductivities of Ga2O3-La2O3 co-doped CeO2 were higher than that of Sm2O3-doped CeO2, which was reported having the highest conductivity among CeO2-based oxides.

Place, publisher, year, edition, pages
2008. 244-246 p.
Series
Key Engineering Materials, ISSN 1013-9826
Keyword [en]
CeO2-based oxides, Conductivity, PVA polymerized process, Synthesis, Oxygen-ion conductors, Ionic conduction, Lanthanum compounds, Neodymium compounds, Oxygen, X ray diffraction analysis, Cerium compounds
National Category
Materials Chemistry
Identifiers
URN: urn:nbn:se:kth:diva-154469ISI: 000254883200077Scopus ID: 2-s2.0-40949139267OAI: oai:DiVA.org:kth-154469DiVA: diva2:757631
Conference
5th China International Conference on High-Performance Ceramics (CICC-5), Changsha, PEOPLES R CHINA, MAY 10-13, 2007
Note

QC 20141023

Available from: 2014-10-23 Created: 2014-10-20 Last updated: 2017-03-24Bibliographically approved

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