Preparation of platinum nanoparticle and its catalytic activity for toluene oxidation |
| |
Authors: | Kim Sang Chai Shim Wang Geun Lee Man Seung Jung Sang Chul Park Young-Kwon |
| |
Affiliation: | Department of Environmental Education, Mokpo National University, Muan 534-729, Korea. |
| |
Abstract: | Colloidal Pt nanoparticles are prepared using H2PtCl6 as a precursor, polyvinylpyrrolidone (PVP: molecular weight = 10,000 and 40,000) and hydrogen as a stabilizing agent and a reducing agent, respectively. The amounts of the precursor and the stabilizing agent and the molecular weight of PVP have an effect on the formation of Pt nanoparticles. Supported Pt catalyst (CSPt) is prepared from colloidal Pt nanoparticles and y-Al2O3. Another supported Pt catalyst (ISPt) is prepared by using the conventional incipient wetness impregnation method with an aqueous H2PtCl6 solution and gamma-Al2O3. The catalytic activities of CSPt and ISPt catalysts are compared for VOC (toluene) oxidation. Transmission Electron Microscopy (TEM), UV-vis, X-ray diffraction (XRD) and temperature programmed reduction (TPR) are used to characterize CSPt and ISPt catalysts. The experimental results reveal that the catalytic activity of CSPt is superior to that of ISPT. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|