Journal
CHEMISTRY-AN ASIAN JOURNAL
Volume 10, Issue 7, Pages 1561-1570Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/asia.201500188
Keywords
heterogeneous catalysis; hydrogenation; platinum; support; supported catalysts
Categories
Funding
- 973 Program [2011CBA00506]
- National Natural Science Foundation of China [21376020, 21271158]
- Beijing Natural Science Foundation [2152022]
- Program for Changjiang Scholars and Innovative Research Team in University [IRT1205]
- Fundamental Research Funds for the Central Universities [YS1406]
- Beijing Engineering Center for Hierarchical Catalysts
Ask authors/readers for more resources
The hydrogenation of ,-unsaturated aldehydes to allylic alcohols or saturated aldehydes provides a typical example to study the catalytic effect on structure-sensitive reactions. In this work, supported platinum nanocatalysts over hydrotalcite were synthesized by an alcohol reduction method. The Pt catalyst prepared by the reduction with a polyol (ethylene glycol) outperforms those prepared with ethanol and methanol in the hydrogenation of cinnamaldehyde. The selectivity towards the C=O bond is the highest over the former, although its mean size of Pt particles is the smallest. The hydroxyl groups on hydrotalcite could act as an internally accessible promoter to enhance the selectivity towards the C=O bond. The optimal Pt catalyst showed a high activity with an initial turnover frequency (TOF) of 2.314s(-1). This work unveils the synergic effect of metal valence and in situ promoter on the chemoselective hydrogenation, which could open up a new direction in designing hydrogenation catalysts.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available