Abstract
Graphene oxide functionalized with gamaaminopropyltriethoxysilane, is used as support for the immobilization of homogeneous heteropoly phosphotungstic acid. It is synthesized and characterized by SEM, XPS, XRD, 31P NMR and Raman. The effects of catalyst parameters and reaction conditions on the oxidation reaction of benzyl alcohol are systematically investigated. Under optimal conditions, the catalyst exhibit remarkably enhanced catalytic activity (conversion 76 % and selectivity 99 %). And the catalyst could be separated conveniently. Moreover, the loss of PW12O403- anion from the support under the reaction conditions is responsible for the deactivation of the catalyst.
| Original language | English |
|---|---|
| Pages (from-to) | 314-319 |
| Number of pages | 6 |
| Journal | Catalysis Letters |
| Volume | 144 |
| Issue number | 2 |
| DOIs | |
| State | Published - Feb 2014 |
Keywords
- Benzyl alcohol oxidation
- Graphene oxide
- Phosphotungstic acid