期刊
RSC ADVANCES
卷 5, 期 52, 页码 41513-41519出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ra02660a
关键词
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资金
- National Basic Research Program of China [2015CB654700(2015CB674705)]
- National Natural Science Foundation of China [51103005, 21403012]
- Beijing Natural Science Foundation [2144053]
- Fundamental Research Funds for the Central Universities in China [JD1513, 1404]
- Beijing Higher Education Young Elite Teacher Project [YETP0493]
- Program of Beijing Excellent Talents [2013D009016000003]
Supported catalysts are an increasingly popular research area because supported catalysts are highly efficient and the catalyst particles can be recovered. In this study, a new silica-supported palladium (Pd/SiO2) nanofiber catalyst was developed. Pd/SiO2 nanofibers were prepared by the electrospinning of a solution mixture of poly(vinyl pyrrolidone) (PVP), TEOS gel, and PdCl2 nanoparticles, followed by the calcination of PdCl2/PVP/TEOS nanofibers at a high temperature and the reduction of PdO/SiO2 nanofibers in a H-2 atmosphere. The results showed that the prepared Pd/SiO2 nanofibers had an average diameter of 500 nm. Pd nanoparticles with a diameter of 20-30 nm were uniformly dispersed on the surface of SiO2 nanofibers. The composite nanofibers had high Brunauer-Emmett-Teller (BET) specific surface area. The hydrogenation reaction for acrylic acid showed that the hydrogenation efficiency was 93.48% in the presence of 0.1 g of Pd/SiO2 nanofibers. These nanofibers could be easily recycled. These features make the Pd/SiO2 nanofibers promising in a wide range of applications in the catalyst industry.
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