Journal
JOURNAL OF MATERIALS SCIENCE
Volume 50, Issue 11, Pages 3984-3993Publisher
SPRINGER
DOI: 10.1007/s10853-015-8954-8
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Funding
- National Natural Science Foundation of China [21376051, 21106017, 21306023, 51077013]
- Natural Science Foundation of Jiangsu [BK20131288]
- Fund Project for Transformation of Scientific and Technological Achievements of Jiangsu Province of China [BA2011086]
- Specialized Research Fund for the Doctoral Program of Higher Education of China [20100092120047]
- Key Program for the Scientific Research Guiding Found of Basic Scientific Research Operation Expenditure of Southeast University [3207043101]
- Instrumental Analysis Fund of Southeast University
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Ce-doped mesoporous gamma-alumina with different contents of Ce was prepared by the sol-gel synthesis method and applied for the synthesis of propane dehydrogenation catalysts. To investigate the influence of different Ce contents on the properties of the supports, the prepared samples were characterized by several techniques, such as XRD, N-2-physisorption, TEM, XPS, NH3-TPD, and hydrogen chemisorption. The results showed that, by the incorporation of Ce, the pore structure was changed, the acid content was decreased, and the properties of the metallic Pt particles were promoted significantly. Based on these effects, the coke deposits on the active center were suppressed and even migrated to the external surface of the support. As expected, when the content of Ce is suitable (0.6 wt%), the catalytic performance of propane dehydrogenation and the stability of the catalyst were highly promoted.
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