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Title: Lattice distortions and oxygen vacancies produced in Au+-irradiated nanocrystalline cubic zirconia

Abstract

The oxygen ion conductivity, attributed to an oxygen vacancy mechanism, of yttria-stabilized zirconia membranes used in solid oxide fuel cells is restricted due to trapping limitations. In this work, a high concentration of oxygen vacancies has been deliberately introduced into nanocrystalline stabilizer-free zirconia through ion-irradiation. Oxygen vacancies with different charge states can be produced by varying irradiation temperatures. Due to the reduced trapping sites and high oxygen vacancy concentration, this work suggests that the efficiency of solid oxide fuel cells can be improved.

Authors:
; ; ;
Publication Date:
Research Org.:
Energy Frontier Research Centers (EFRC) (United States). Materials Science of Actinides (MSA)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1386670
DOE Contract Number:  
SC0001089
Resource Type:
Journal Article
Journal Name:
Scripta Materialia
Additional Journal Information:
Journal Volume: 65; Journal Issue: 8; Related Information: MSA partners with University of Notre Dame (lead); University of California, Davis; Florida State University; George Washington University; University of Michigan; University of Minnesota; Oak Ridge National Laboratory; Oregon state University; Rensselaer Polytechnic Institute; Savannah River National Laboratory; Journal ID: ISSN 1359-6462
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; nuclear (including radiation effects), materials and chemistry by design, synthesis (novel materials), synthesis (self-assembly)

Citation Formats

Edmondson, Philip D., Weber, William J., Namavar, Fereydoon, and Zhang, Yanwen. Lattice distortions and oxygen vacancies produced in Au+-irradiated nanocrystalline cubic zirconia. United States: N. p., 2011. Web. doi:10.1016/j.scriptamat.2011.07.010.
Edmondson, Philip D., Weber, William J., Namavar, Fereydoon, & Zhang, Yanwen. Lattice distortions and oxygen vacancies produced in Au+-irradiated nanocrystalline cubic zirconia. United States. doi:10.1016/j.scriptamat.2011.07.010.
Edmondson, Philip D., Weber, William J., Namavar, Fereydoon, and Zhang, Yanwen. Sat . "Lattice distortions and oxygen vacancies produced in Au+-irradiated nanocrystalline cubic zirconia". United States. doi:10.1016/j.scriptamat.2011.07.010.
@article{osti_1386670,
title = {Lattice distortions and oxygen vacancies produced in Au+-irradiated nanocrystalline cubic zirconia},
author = {Edmondson, Philip D. and Weber, William J. and Namavar, Fereydoon and Zhang, Yanwen},
abstractNote = {The oxygen ion conductivity, attributed to an oxygen vacancy mechanism, of yttria-stabilized zirconia membranes used in solid oxide fuel cells is restricted due to trapping limitations. In this work, a high concentration of oxygen vacancies has been deliberately introduced into nanocrystalline stabilizer-free zirconia through ion-irradiation. Oxygen vacancies with different charge states can be produced by varying irradiation temperatures. Due to the reduced trapping sites and high oxygen vacancy concentration, this work suggests that the efficiency of solid oxide fuel cells can be improved.},
doi = {10.1016/j.scriptamat.2011.07.010},
journal = {Scripta Materialia},
issn = {1359-6462},
number = 8,
volume = 65,
place = {United States},
year = {2011},
month = {10}
}