期刊
RUSSIAN CHEMICAL BULLETIN
卷 63, 期 8, 页码 1710-1716出版社
SPRINGER
DOI: 10.1007/s11172-014-0657-9
关键词
organic mesoporous supports; palladium nanoparticles; selective hydrogenation; phenylacetylene; conjugated dienes
资金
- Russian Foundation for Basic Research [14-03-00210]
Palladium catalysts supported on ordered organic mesoporous polymers were synthesized. The catalysts are characterized by the narrow size distribution of palladium nanoparticles with an average particle size of 2.2-5.2 nm. They demonstrate high catalytic activity and selectivity in phenylacetylene hydrogenation (896-2590 min(-1), selectivity 89-98%). High activity and selectivity for alkenes are observed in the hydrogenation of conjugated dienes (for isoprene, TOF = 1850-5000 min(-1), selectivity 99%; for 2,5-dimethyl-2,4-hexadiene, TOF = = 1294-2400 min(-1), selectivity 100%; for 1,4-diphenyl-1,3-butadiene, TOF = 14-22 min(-1), selectivity 7-16%). A dependence of the selectivity on the nature of the support and substrate was found for the hydrogenation of 1,4-diphenyl-1,3-butadiene.
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