High catalytic activity and stability of palladium nanoparticles prepared by the laser electrodispersion method in chlorobenzene hydrodechlorination |
| |
Authors: | E S Lokteva T N Rostovshchikova S A Kachevskii E V Golubina V V Smirnov A Yu Stakheev N S Telegina S A Gurevich V M Kozhevin D A Yavsin |
| |
Institution: | (1) Central Scientific Instruments Organisation, Sector-30C, Chandigarh, India;(2) Panjab University, Sector-14, Chandigarh, India |
| |
Abstract: | Palladium nanoparticles deposited on thermally oxidized silicon and on the carbon support Sibunit by the laser electrodispersion method are extremely active in the gas-phase hydrodechlorination of chlorobenzene at 100–200°C. High conversion of chlorobenzene (above 90%) has been achieved with catalysts with an unusually low metal content (from 10?4 to 10?3 wt %). The cyclohexane-to-benzene ratio in the reaction products depends on the process duration, palladium content, and support nature. According to X-ray photoelectron spectroscopy (XPS) data, palladium in the catalysts retains its metallic state over a long time under the reaction conditions. Possible causes of the high catalytic activity (105 mol (mol Pd)?1 h?1) of the palladium nanoparticles and their stability to chlorination are discussed. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|