Defect Engineering in Cubic Cerium Oxide Nanostructures for Catalytic Oxidation

作者：Neil J. Lawrence, Joseph R. Brewer, Lu Wang, Tai‐Sing Wu, Jamie Wells-Kingsbury, Marcella M. Ihrig, Gonghua Wang, Y. L. Soo, W. N. Mei, Chin Li Cheung · 发表于：Nano Letters · 年份：2011 · DOI：10.1021/nl200722z · 被引用次数：355 · 研究领域：Catalytic Processes in Materials Science、Copper-based nanomaterials and applications、ZnO doping and properties

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.