期刊
JOURNAL OF CATALYSIS
卷 341, 期 -, 页码 44-54出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcat.2016.06.004
关键词
Pt dispersion; Single atoms; Small clusters; Hydrotalcite-like compounds; Catalytic reforming
资金
- National Nature Science Foundation of China (NSFC)
- PCSIRT [IRT1205]
- 973 Project [2014CB932104]
- Fundamental Research Funds for the Central Universities [YS1406]
- China National Funds for Distinguished Young Scientists from the NSFC
- Beijing Engineering Center for Hierarchical Catalysts
Conventional supported Pt for industrial catalytic reforming exhibits high conversion, but suffers low selectivity due to the hydrogenolysis reaction. The development of highly dispersed Pt offers the opportunity to settle this problem. Here, a supported Pt, with Pt dispersed in single atoms plus small clusters with fewer than 10 atoms (91%) on Sn-containing mixed metal oxides, has been prepared by the induction of a Sn component confined in the lattices of brucite-like layers of layered double hydroxides. Pt in single-atom and small-cluster dispersion effectively inhibits hydrogenolysis and significantly improves the selectivity to cyclization products in the n-heptane reforming reaction. (C) 2016 Published by Elsevier Inc.
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