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- Publisher
- Springer Journals
- Copyright
- Copyright © 2009 by Macmillan Publishers Limited. All rights reserved
- Subject
- Science, Humanities and Social Sciences, multidisciplinary; Science, Humanities and Social Sciences, multidisciplinary; Science, multidisciplinary
- ISSN
- 0028-0836
- eISSN
- 1476-4687
- DOI
- 10.1038/nature07877
- Publisher site
- See Article on Publisher Site
Abstract
Tricobalt tetraoxide (Co3O4) has been much investigated as a potential catalyst for the low-temperature oxidation of carbon monoxide, useful for example in automotive emission control. Although this material is active even at sub-zero temperatures, it is highly sensitive to even trace amounts of moisture. Xiaowei Xie et al. now establish that Co3O4 in the form of nanorods shows higher catalytic activity, and enhanced stability in the presence of water; they attribute these improvements to the high density of catalytically active Co3+ sites exposed on the nanorod surface. Health risks associated with cobalt use mean that this specific material might not found widespread application for air purification, but these findings demonstrate the potential for morphological control for improving the performance of transition metal oxide catalysts.
Journal
Nature – Springer Journals
Published: Apr 9, 2009