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Defect engineering in cubic cerium oxide nanostructures for catalytic oxidation
Neil J Lawrence1, Joseph R Brewer, Lu Wang
1Department of Chemistry, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, United States.
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.
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