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Catalysis Letters

, 133:307 | Cite as

Mesostructured CeO2 as an Effective Catalyst for Styrene Synthesis by Oxidative Dehydrogenation of Ethylbenzene

  • Jie Xu
  • Lun-Cun Wang
  • Yong-Mei Liu
  • Yong CaoEmail author
  • He-Yong He
  • Kang-Nian FanEmail author
Article

Abstract

A new type of mesostructured ceria material was synthesized via template-assisted precipitation method and tested for the oxidative dehydrogenation (ODH) of ethylbenzene to styrene by molecular oxygen. The effect of calcination temperature on the catalytic performances of the ceria catalysts has been investigated. Among the catalysts tested, the CeO2-450 sample derived by calcination at 450 °C exhibited the highest ethylbenzene conversion (34%) and styrene selectivity (87%). Comparing the reaction rates for ODH of ethylbenzene (ca. 6.1 mmol ST g cat −1 h−1 at 450 °C) with the highly active nanostructured carbon-based catalysts in the current literature confirmed the very high activity of these new materials. The superior catalytic performance of the CeO2-450 sample can be attributed to its high specific surface area and enhanced redox properties as revealed by H2-TPR measurements.

Keywords

Ceria Mesostructured Oxidative dehydrogenation (ODH) Ethylbenzene Styrene 

Notes

Acknowledgments

This work was financially supported by the National Natural Science Foundation of China (20633030, 20721063, 20803012, and 20873026), the National High Technology Research and Development Program of China (2006AA03Z336), and the National Basic Research Program of China (2009CB623506), Science & Technology Commission of Shanghai Municipality (08DZ2270500, 07QH14003) and the Committee of the Shanghai Education (06SG03).

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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  1. 1.Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative MaterialsFudan UniversityShanghaiPeople’s Republic of China

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