Characterization of Model Superacid Catalysts
EMSL Project ID
44091
Abstract
The isomerization of n-alkanes is of much interest for the formation of branched hydrocarbons for improved quality fuels. Sulfated-zirconia is a promising next generation catalyst for these and other important reactions. The high surface acidity of these materials are critical for high isomerization yield and selectivity, however details on the specific role of promoters, acid sites, and reaction mechanisms still require further study. We have developed chemistries to produce high-quality spin-coated sulfated-zirconia and sulfated-hafnia model catalysts, and we propose to investigate the following: (1) the characterization of the model sulfated catalysts; (2) the adsorption and desorption chemistries of probe molecules to evaluate surface acidity and reactivity; and (3) the adsorption and desorption chemistries of n-butane and isobutane on the model sulfated catalysts for further understanding of isomerization reactions.
Project Details
Project type
Exploratory Research
Start Date
2011-03-14
End Date
2012-03-18
Status
Closed
Released Data Link
Team
Principal Investigator
Team Members
Related Publications
Rajachidambaram MS, T Varga, L Kovarik, RP Sanghavi, V Shutthanandan, S Thevuthasan, S Han, C Chang, and GS Herman. 2012. "Formation of zinc oxide films using submicron zinc particle dispersions." Journal of Vacuum Science and Technology B--Microelectronics and Nanometer Structures 30(4):Article No. 041805. doi:10.1116/1.4731255