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

Philip D. Edmondson; William J. Weber; Fereydoon Namavar; Yanwen Zhang

doi:10.1016/j.scriptamat.2011.07.010

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

Philip D. Edmondson, William J. Weber, Fereydoon Namavar, Yanwen Zhang

Orthopaedic Surgery & Rehabilitation

Research output: Contribution to journal › Article › peer-review

28 Scopus citations

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.

Original language	English (US)
Pages (from-to)	675-678
Number of pages	4
Journal	Scripta Materialia
Volume	65
Issue number	8
DOIs	https://doi.org/10.1016/j.scriptamat.2011.07.010
State	Published - Oct 2011

Keywords

Glancing incidence X-ray diffraction
Ion-beam modification
Lattice spacing
Nanocrystalline zirconia
Oxygen vacancy

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

Access to Document

10.1016/j.scriptamat.2011.07.010

Cite this

@article{56db9856a63e4c8fa4abb74d3199692c,

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.",

keywords = "Glancing incidence X-ray diffraction, Ion-beam modification, Lattice spacing, Nanocrystalline zirconia, Oxygen vacancy",

author = "Edmondson, {Philip D.} and Weber, {William J.} and Fereydoon Namavar and Yanwen Zhang",

note = "Funding Information: This work was supported as part of the Materials Science of Actinides, an Energy Frontier Research Center funded by the US Department of Energy, Office of Basic Energy Sciences, Materials Sciences and Engineering Division. A portion of the research was performed at the Environmental Molecular Sciences Laboratory (EMSL), a national scientific user facility sponsored by the Department of Energy{\textquoteright}s Office of Biological and Environmental Research, and located at Pacific Northwest National Laboratory.",

year = "2011",

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doi = "10.1016/j.scriptamat.2011.07.010",

language = "English (US)",

volume = "65",

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T1 - Lattice distortions and oxygen vacancies produced in Au+- irradiated nanocrystalline cubic zirconia

AU - Edmondson, Philip D.

AU - Weber, William J.

AU - Namavar, Fereydoon

AU - Zhang, Yanwen

N1 - Funding Information: This work was supported as part of the Materials Science of Actinides, an Energy Frontier Research Center funded by the US Department of Energy, Office of Basic Energy Sciences, Materials Sciences and Engineering Division. A portion of the research was performed at the Environmental Molecular Sciences Laboratory (EMSL), a national scientific user facility sponsored by the Department of Energy’s Office of Biological and Environmental Research, and located at Pacific Northwest National Laboratory.

PY - 2011/10

Y1 - 2011/10

N2 - 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.

AB - 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.

KW - Glancing incidence X-ray diffraction

KW - Ion-beam modification

KW - Lattice spacing

KW - Nanocrystalline zirconia

KW - Oxygen vacancy

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