1 Ocak 2015 Dergi makalesi Açık Erişim

Rodenbough, Philip P.; Song, Junhua; Walker, David; Clark, Simon M.; Kalkan, Bora; Chan, Siu-Wai

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  <dc:creator>Rodenbough, Philip P.</dc:creator>
  <dc:creator>Song, Junhua</dc:creator>
  <dc:creator>Walker, David</dc:creator>
  <dc:creator>Clark, Simon M.</dc:creator>
  <dc:creator>Kalkan, Bora</dc:creator>
  <dc:creator>Chan, Siu-Wai</dc:creator>
  <dc:date>2015-01-01</dc:date>
  <dc:description>We report the crystallite-size-dependency of the compressibility of nanoceria under hydrostatic pressure for a wide variety of crystallite diameters and comment on the size-based trends indicating an extremum near 33 nm. Uniform nano-crystals of ceria were synthesized by basic precipitation from cerium (III) nitrate. Size-control was achieved by adjusting mixing time and, for larger particles, a subsequent annealing temperature. The nano-crystals were characterized by transmission electron microscopy and standard ambient x-ray diffraction (XRD). Compressibility, or its reciprocal, bulk modulus, was measured with high-pressure XRD at LBL-ALS, using helium, neon, or argon as the pressure-transmitting medium for all samples. As crystallite size decreased below 100 nm, the bulk modulus first increased, and then decreased, achieving a maximum near a crystallite diameter of 33 nm. We review earlier work and examine several possible explanations for the peaking of bulk modulus at an intermediate crystallite size. (C) 2015 AIP Publishing LLC.</dc:description>
  <dc:identifier>https://aperta.ulakbim.gov.trrecord/78353</dc:identifier>
  <dc:identifier>oai:zenodo.org:78353</dc:identifier>
  <dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
  <dc:rights>http://www.opendefinition.org/licenses/cc-by</dc:rights>
  <dc:source>APPLIED PHYSICS LETTERS 106(16)</dc:source>
  <dc:title>Size dependent compressibility of nano-ceria: Minimum near 33 nm</dc:title>
  <dc:type>info:eu-repo/semantics/article</dc:type>
  <dc:type>publication-article</dc:type>
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