A highly dispersed Pd-Mg/SiO2 catalyst active for methanation of CO2

Park, Jung-Nam and McFarland, Eric W. (2009) A highly dispersed Pd-Mg/SiO2 catalyst active for methanation of CO2. Journal of Catalysis, 266 1: 92-97. doi:10.1016/j.jcat.2009.05.018


Author Park, Jung-Nam
McFarland, Eric W.
Title A highly dispersed Pd-Mg/SiO2 catalyst active for methanation of CO2
Journal name Journal of Catalysis   Check publisher's open access policy
ISSN 0021-9517
1090-2694
Publication date 2009-08-15
Sub-type Article (original research)
DOI 10.1016/j.jcat.2009.05.018
Open Access Status
Volume 266
Issue 1
Start page 92
End page 97
Total pages 6
Place of publication Maryland Heights, MO, United States
Publisher Academic Press
Language eng
Abstract A catalyst formed as an aggregate of highly dispersed palladium and magnesium in silica was prepared using a reverse microemulsion synthesis. After calcination, the catalyst consists predominately of Pd containing particles 5 to 10 nm in size distributed within an amorphous oxide of Mg and Si. The catalytic activity and selectivity of the Pd-Mg/SiO2 catalyst for CO2 methanation were characterized and compared to several other catalyst preparations. At 450 °C, the Pd-Mg/SiO2 catalyst had greater than 95% selectivity to CH4 at a carbon dioxide conversion of 59%, while similar catalysts without Mg have activity only for CO2 reduction to CO, and the Mg- and Si-containing oxide (without a transition metal) are relatively inactive. The results support a synergistic effect between the Pd and the Mg/Si oxide.
Keyword CO2 activation
Methanation
Mg
Pd
Reverse microemulsion
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Chemical Engineering Publications
 
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