Abstract
Exceptional size-dependent electronic-ionic conductivity of nanostructured ceria can significantly alter materials properties in chemical, physical, electronic and optical applications. Using energetic ions, we have demonstrated effective modification of interface volume and grain size in nanocrystalline ceria from a few nm up to ∼25 nm, which is the critical region for controlling size-dependent material property. The grain size increases and follows an exponential law as a function of ion fluence that increases with temperature, while the cubic phase is stable under the irradiation. The unique self-healing response of radiation damage at grain boundaries is utilized to control the grain size at the nanoscale. Structural modification by energetic ions is proposed to achieve desirable electronic-ionic conductivity.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 11946-11950 |
| Number of pages | 5 |
| Journal | Physical Chemistry Chemical Physics |
| Volume | 13 |
| Issue number | 25 |
| DOIs | |
| State | Published - Jul 7 2011 |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
- Physical and Theoretical Chemistry
Cite this
Structural modification of nanocrystalline ceria by ion beams. / Zhang, Yanwen; Edmondson, Philip D.; Varga, Tamas; Moll, Sandra; Namavar, Fereydoon; Lan, Chune; Weber, William J.
In: Physical Chemistry Chemical Physics, Vol. 13, No. 25, 07.07.2011, p. 11946-11950.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Structural modification of nanocrystalline ceria by ion beams
AU - Zhang, Yanwen
AU - Edmondson, Philip D.
AU - Varga, Tamas
AU - Moll, Sandra
AU - Namavar, Fereydoon
AU - Lan, Chune
AU - Weber, William J.
PY - 2011/7/7
Y1 - 2011/7/7
N2 - Exceptional size-dependent electronic-ionic conductivity of nanostructured ceria can significantly alter materials properties in chemical, physical, electronic and optical applications. Using energetic ions, we have demonstrated effective modification of interface volume and grain size in nanocrystalline ceria from a few nm up to ∼25 nm, which is the critical region for controlling size-dependent material property. The grain size increases and follows an exponential law as a function of ion fluence that increases with temperature, while the cubic phase is stable under the irradiation. The unique self-healing response of radiation damage at grain boundaries is utilized to control the grain size at the nanoscale. Structural modification by energetic ions is proposed to achieve desirable electronic-ionic conductivity.
AB - Exceptional size-dependent electronic-ionic conductivity of nanostructured ceria can significantly alter materials properties in chemical, physical, electronic and optical applications. Using energetic ions, we have demonstrated effective modification of interface volume and grain size in nanocrystalline ceria from a few nm up to ∼25 nm, which is the critical region for controlling size-dependent material property. The grain size increases and follows an exponential law as a function of ion fluence that increases with temperature, while the cubic phase is stable under the irradiation. The unique self-healing response of radiation damage at grain boundaries is utilized to control the grain size at the nanoscale. Structural modification by energetic ions is proposed to achieve desirable electronic-ionic conductivity.
UR - http://www.scopus.com/inward/record.url?scp=79960793532&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79960793532&partnerID=8YFLogxK
U2 - 10.1039/c1cp21335k
DO - 10.1039/c1cp21335k
M3 - Article
VL - 13
SP - 11946
EP - 11950
JO - Physical Chemistry Chemical Physics
JF - Physical Chemistry Chemical Physics
SN - 1463-9076
IS - 25
ER -