| Autor: |
Wenhua Zhang, Xue Pin Liao, Bi Shi, Guang Lv, Xin Huang, Chen Chen |
| Rok vydání: |
2012 |
| Předmět: |
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| Zdroj: |
Scopus-Elsevier |
| ISSN: |
0253-2964 |
| DOI: |
10.5012/bkcs.2012.33.2.403 |
| Popis: |
In this study, the homogenous Pd nanoparticles (Pd NPs) were first prepared with bayberry tannin (BT) as the stabilizers. Subsequently, the obtained bayberry tannin-stabilized Pd nanoparticles (BT-Pd) were immobilized onto to prepare heterogeneous -BT-Pd catalysts. Fourier Transformation Infrared Spectrum (FTIR) and X-ray Photoelectron Spectroscopy (XPS) analyses confirmed that the Pd NPs were well stabilized by the phenolic hydroxyl groups of BT. Transmission Electron Microscopy (TEM) observation indicated that the diameter of the Pd NPs can be effectively controlled in the range of 4.2-16.0 nm by varying the amount of BT. It is found that the -BT-Pd catalysts exhibit highly activity for various olefin hydrogenations. For example, the initial TOF (turnover frequency) of the -BT-Pd in the allyl alcohol hydrogenation is as high as . Furthermore, the -BT-Pd can be reused 5 times without significant loss of activity, exhibiting a superior reusability as compared with conventionally prepared -Pd catalysts. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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