Journal
CATALYSIS COMMUNICATIONS
Volume 111, Issue -, Pages 75-79Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.catcom.2018.04.001
Keywords
Supported Pd catalyst; Macroporous silica microspheres; Polystyrene; Hydrogenation
Categories
Funding
- National Natural Science Foundation of China [21576290, 21776048]
- Fujian young top-notch innovative talent project
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Supported Pd catalyst with an enhanced catalytic performance for polystyrene hydrogenation was successfully prepared by using macroporous silica microspheres (MSM) as the support. In order to eliminate the macro molecular diffusion limitation and improve the metal utilization, MSM was treated with steam at 800 degrees C first to remove mesopores and then refluxed with aqueous solutions to increase Si-OH groups on the surface for Pd immobilization. The optimum support was obtained after the steam treatment for 2 h and using ammonia solution as reflux liquors, and the corresponding catalyst showed superior hydrogenation activity with a high conversion of 95%.
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