Defect engineering in cubic cerium oxide nanostructures for catalytic oxidation |
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Authors: | Lawrence Neil J Brewer Joseph R Wang Lu Wu Tai-Sing Wells-Kingsbury Jamie Ihrig Marcella M Wang Gonghua Soo Yun-Liang Mei Wai-Ning Cheung Chin Li |
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Affiliation: | Department of Chemistry, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, United States. |
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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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