Journal
NANO LETTERS
Volume 11, Issue 7, Pages 2666-2671Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl200722z
Keywords
Heterogeneous catalysis; nanostructures; cerium oxide; oxygen vacancy defect; catalyst activation
Categories
Funding
- Nebraska Research Initiative
- Nebraska Center for Energy Sciences Research
- DOD/ARO [W911NF-10-2-0099]
- NSF [EPS-1010674]
- NE EPSCoR NASA
- Office Of The Director
- EPSCoR [1010674] Funding Source: National Science Foundation
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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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