EFFECT OF METAL DISPERSION ON CO HYDROGENATION OVER PD HZSM-5 CATALYSTS/

Authors
JEON JK IHM SK
Citation
Jk. Jeon et Sk. Ihm, EFFECT OF METAL DISPERSION ON CO HYDROGENATION OVER PD HZSM-5 CATALYSTS/, Catalysis letters, 31(4), 1995, pp. 341-350
Citations number
23
Categorie Soggetti
Chemistry Physical
Journal title
Catalysis letters → ACNP
ISSN journal
1011372X
Volume
31
Issue
4
Year of publication
1995
Pages
341 - 350
Database
ISI
SICI code
1011-372X(1995)31:4<341:EOMDOC>2.0.ZU;2-C
Abstract
Pd/HZSM-5 catalysts prepared by ion-exchange method using Pd(NH3)(4)(2 +) were calcined and reduced at different temperatures to provide diff erent metal dispersions. The effect of Pd dispersion on CO adsorption characteristics and acidity were observed through FT-IR study. Methano l and dimethyl ether were the main products in CO hydrogenation over P d/HZSM-5 catalyst with small Pd particles on which CO was weakly adsor bed, while the selectivity to methane increased with metal sizes.