Extra-low-temperature oxygen storage capacity of CeO2 nanocrystals with cubic facets

Nano Lett. 2011 Feb 9;11(2):361-4. doi: 10.1021/nl102738n. Epub 2011 Jan 4.

Abstract

Herein we demonstrate the extra-low-temperature oxygen storage capacity (OSC) of cerium oxide nanocrystals with cubic (100) facets. A considerable OSC occurs at 150 °C without active species loading. This temperature is 250 °C lower than that of irregularly shaped cerium oxide. This result indicates that cubic (100) facets of cerium oxide have the characteristics to be a superior low-temperature catalyst.

MeSH terms

  • Cerium / chemistry*
  • Cold Temperature
  • Crystallization / methods*
  • Macromolecular Substances / chemistry
  • Materials Testing
  • Molecular Conformation
  • Nanostructures / chemistry*
  • Nanostructures / ultrastructure*
  • Nanotechnology / methods*
  • Oxygen / chemistry*
  • Oxygen / isolation & purification*
  • Particle Size
  • Surface Properties

Substances

  • Macromolecular Substances
  • Cerium
  • ceric oxide
  • Oxygen