1. Defect engineering in cubic cerium oxide nanostructures for catalytic oxidation
- Author
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Joseph R. Brewer, Neil J. Lawrence, Jamie M. Wells-Kingsbury, Chin Li \\'Barry\\' Cheung, Gonghua Wang, Lu Wang, Marcella M. Ihrig, Yun-Liang Soo, Tai Sing Wu, and Wai-Ning Mei
- Subjects
Cerium oxide ,Nanostructure ,Dopant ,Chemistry ,Surface Properties ,Mechanical Engineering ,Inorganic chemistry ,Temperature ,chemistry.chemical_element ,Bioengineering ,General Chemistry ,Cerium ,Condensed Matter Physics ,Heterogeneous catalysis ,Catalysis ,Nanostructures ,Oxygen ,Catalytic oxidation ,Nanotechnology ,General Materials Science ,Particle size ,Particle Size ,Oxidation-Reduction - 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. more...
- Published
- 2011