Optimization of the Pd/Cu ratio in Pd-Cu-Zn/SiC catalysts for the CO2 hydrogenation to methanol at atmospheric pressure
Abstract
Tri-metallic 37.5PdCuZn/SiC catalyst showed the most active and selective to methanol. Cu inhibits the deposition of Pd0 during catalyst reduction, forming the PdCu alloy. PdCu and PdZn sites led to higher methanol selectivity in tri-metallic catalysts. The active sites of tri-metallic catalysts were better dispersed than bimetallic ones.
- Publication:
-
Journal of CO2 Utilization
- Pub Date:
- December 2017
- DOI:
- 10.1016/j.jcou.2017.09.012
- Bibcode:
- 2017JCOU...22...71D
- Keywords:
-
- CO<SUB loc="post">2</SUB> hydrogenation;
- Methanol synthesis;
- Trimetallic catalysts;
- Pd-Cu-Zn;
- Silicon carbide;
- Atmospheric pressure