Preparation of H5PMo10V2O40 catalyst immobilized on spherical carbon and its application to the vapor-phase 2-propanol conversion reaction |
| |
Authors: | Kyung Won La Heesoo Kim Ji Chul Jung Joohyung Lee Dong Ryul Park Sang Hee Lee In Kyu Song |
| |
Affiliation: | (1) School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Shinlim-dong, Gwanak-gu, Seoul, 151-744, Korea |
| |
Abstract: | Spherical carbon (SC) with a diameter of ca. 9 μm was synthesized by a hydrothermal method using sucrose as a carbon precursor. The spherical carbon was then modified to have a positive charge, and thus, to provide a site for the immobilization of H5PMo10V2O40 (PMo10V2) catalyst. The PMo10V2 catalyst was immobilized on the surface-modified spherical carbon by taking advantage of the overall negative charge of [PMo10V2O40]5−. The PMo10V2 catalyst immobilized on the spherical carbon (PMo10V2/SC) was applied to the vapor-phase 2-propanol conversion reaction. In the catalytic reaction, the PMo10V2/SC catalyst showed a higher 2-propanol conversion than the unsupported PMo10V2 catalyst. Furthermore, the PMo10V2/SC catalyst showed enhanced oxidation catalytic activity (formation of acetone) and the suppressed acid catalytic activity (formation of propylene and isopropyl ether) compared to the unsupported PMo10V2 catalyst. The enhanced oxidation activity of PMo10V2/SC catalyst was due to the fine dispersion of [PMo10V2O40]5− on the spherical carbon formed via chemical immobilization. |
| |
Keywords: | Heteropolyacid Catalyst Spherical Carbon Chemical Immobilization 2-Propanol Conversion |
本文献已被 SpringerLink 等数据库收录! |
|