Preparation Of Palladium Nanoparticles Stabilized By Cyclodextrins In Aqueous Solution And Their Activity For Hydrogenation Of Palm Oil
Palladium (Pd) nanoparticles were prepared in aqueous solution with different cyclodextrins (CDs) as stabilizer and alcohols as reducing agent. An optimum condition for the preparation of Pd nanoparticles was found to involve the use of 2-propanol as reducing agent at 30oC (room temperature). UV-...
| Main Authors: | , , |
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| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
2010
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| Subjects: | |
| Online Access: | http://umpir.ump.edu.my/id/eprint/1193/ http://umpir.ump.edu.my/id/eprint/1193/1/wulihua_ICAMN__.pdf |
| Summary: | Palladium (Pd) nanoparticles were prepared in aqueous solution with different
cyclodextrins (CDs) as stabilizer and alcohols as reducing agent. An optimum condition for the
preparation of Pd nanoparticles was found to involve the use of 2-propanol as reducing agent at 30oC
(room temperature). UV-visible and FT-IR spectra of the products indicated the presence of
interaction between CD and metallic Pd. The TEM micrographs showed that the nanoparticles were
less than 30 nm in diameter. It was observed that the nanoparticles were stable as colloid solution for
weeks. The CD stabilized Pd nanoparticles shows high catalytic activity towards hydrogenation
reaction of palm oil at room temperature. The C18:2 in palm oil were totally hydrogenated within 20
min of reaction, while γ-CD-Pd was observed to show highest hydrogenation activity. |
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