Defect engineering in cubic cerium oxide nanostructures for catalytic oxidation

Neil J. Lawrence, Joseph R. Brewer, Lu Wang, Tai Sing Wu, Jamie Wells-Kingsbury, Marcella M. Ihrig, Gonghua Wang, Yun Liang Soo, Wai Ning Mei, Chin Li Cheung

Research output: Contribution to journalArticlepeer-review

235 Scopus citations

Abstract

Traditional nanostructured design of cerium oxide catalysts typically focuses on their shape, size, and elemental composition. We report a different approach to enhance the catalytic activity of cerium oxide nanostructures through engineering high density of oxygen vacancy defects in these catalysts without dopants. The defect engineering was accomplished by a low pressure thermal activation process that exploits the nanosize effect of decreased oxygen storage capacity in nanostructured cerium oxides.

Original languageEnglish (US)
Pages (from-to)2666-2671
Number of pages6
JournalNano Letters
Volume11
Issue number7
DOIs
StatePublished - Jul 13 2011

Keywords

  • Heterogeneous catalysis
  • catalyst activation
  • cerium oxide
  • nanostructures
  • oxygen vacancy defect

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

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