Oxygen diffusion in nanocrystalline CeO2

L. Saraf, V. Shutthanandan, Chongmin Wang, Yanwen Zhang, O. Marina, S. Thevuthasan

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

2 Citations (Scopus)

Abstract

In this study, 18O diffusion and related transport on 1-2 μm thick nanocrystalline ceria films prepared by sol-gel process with an average grain-size in the range of 3-38 nm are studied. Initial 18O diffusion results indicate increased diffusion in 6 nm average grain-size nano-ceria films compared to ∼38 nm average grain-size poly-ceria films. Conductivity values in the case of ∼ 3nm average grain size CeO2 films grown at 573 K observed to be marginally increased compared to ∼ 6 nm average grain size ceria films grown at 723 K. A detailed nano-grain analysis by high-resolution transmission electron microscopy (HRTEM) was carried out to understand the effect of nanocrystallinity on the blocking phenomena.

Original languageEnglish
Title of host publicationProceedings of the IEEE Conference on Nanotechnology
PublisherIEEE Computer Society
Pages477-479
Number of pages3
Volume2
ISBN (Print)0780379764
DOIs
Publication statusPublished - 2003
Externally publishedYes
Event2003 3rd IEEE Conference on Nanotechnology, IEEE-NANO 2003 - San Francisco, United States
Duration: 12 Aug 200314 Aug 2003

Other

Other2003 3rd IEEE Conference on Nanotechnology, IEEE-NANO 2003
CountryUnited States
CitySan Francisco
Period12/8/0314/8/03

Fingerprint

Cerium compounds
grain size
Oxygen
oxygen
sol-gel processes
High resolution transmission electron microscopy
Sol-gel process
conductivity
transmission electron microscopy
high resolution

Keywords

  • Alpha particles
  • Annealing
  • Cerium
  • Coatings
  • Conductive films
  • Grain size
  • Nuclear power generation
  • Oxygen
  • Temperature measurement
  • Transmission electron microscopy

ASJC Scopus subject areas

  • Bioengineering
  • Electrical and Electronic Engineering
  • Materials Chemistry
  • Condensed Matter Physics

Cite this

Saraf, L., Shutthanandan, V., Wang, C., Zhang, Y., Marina, O., & Thevuthasan, S. (2003). Oxygen diffusion in nanocrystalline CeO2 In Proceedings of the IEEE Conference on Nanotechnology (Vol. 2, pp. 477-479). [1230949] IEEE Computer Society. https://doi.org/10.1109/NANO.2003.1230949

Oxygen diffusion in nanocrystalline CeO2 . / Saraf, L.; Shutthanandan, V.; Wang, Chongmin; Zhang, Yanwen; Marina, O.; Thevuthasan, S.

Proceedings of the IEEE Conference on Nanotechnology. Vol. 2 IEEE Computer Society, 2003. p. 477-479 1230949.

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

Saraf, L, Shutthanandan, V, Wang, C, Zhang, Y, Marina, O & Thevuthasan, S 2003, Oxygen diffusion in nanocrystalline CeO2 in Proceedings of the IEEE Conference on Nanotechnology. vol. 2, 1230949, IEEE Computer Society, pp. 477-479, 2003 3rd IEEE Conference on Nanotechnology, IEEE-NANO 2003, San Francisco, United States, 12/8/03. https://doi.org/10.1109/NANO.2003.1230949
Saraf L, Shutthanandan V, Wang C, Zhang Y, Marina O, Thevuthasan S. Oxygen diffusion in nanocrystalline CeO2 In Proceedings of the IEEE Conference on Nanotechnology. Vol. 2. IEEE Computer Society. 2003. p. 477-479. 1230949 https://doi.org/10.1109/NANO.2003.1230949
Saraf, L. ; Shutthanandan, V. ; Wang, Chongmin ; Zhang, Yanwen ; Marina, O. ; Thevuthasan, S. / Oxygen diffusion in nanocrystalline CeO2 Proceedings of the IEEE Conference on Nanotechnology. Vol. 2 IEEE Computer Society, 2003. pp. 477-479
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