Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 417, Issue 1-2, Pages 220-223Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2005.08.070
Keywords
zirconia; surfactant-templated synthesis; structural defects; hydrogen spillover
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Nanosized zirconia with structural defects was synthesized by using surfactant-templated method. The average crystallite size, phase composition, cationic defect concentration and structural microstrain in the monoclinic phase of zirconia annealed at 800 degrees C were quantitatively determined by the Rietveld refinement. An unusual behaviour of hydrogen reversibly storing into/releasing from the PdO/ZrO2 nanophases was observed, which related to formation/decomposition of a hydride phase beta-PdH0.76 and to hydrogen storage in the cationic defects of zirconia nanophases by means of hydrogen spillover from Pd metals to zirconia support. (c) 2005 Elsevier B.V. All rights reserved.
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