Subnanometer and nanometer catalysts, method for preparing size-selected catalysts
Abstract
Highly uniform cluster based nanocatalysts supported on technologically relevant supports were synthesized for reactions of top industrial relevance. The Pt-cluster based catalysts outperformed the very best reported ODHP catalyst in both activity (by up to two orders of magnitude higher turn-over frequencies) and in selectivity. The results clearly demonstrate that highly dispersed ultra-small Pt clusters precisely localized on high-surface area supports can lead to affordable new catalysts for highly efficient and economic propene production, including considerably simplified separation of the final product. The combined GISAXS-mass spectrometry provides an excellent tool to monitor the evolution of size and shape of nanocatalyst at action under realistic conditions. Also provided are sub-nanometer gold and sub-nanometer to few nm size-selected silver catalysts which possess size dependent tunable catalytic properties in the epoxidation of alkenes. Invented size-selected cluster deposition provides a unique tool to tune material properties by atom-by-atom fashion, which can be stabilized by protective overcoats.
- Inventors:
-
- Lisle, IL
- Naperville, IL
- Elmhurst, IL
- Downers Grove, IL
- Roggentin, GR
- Issue Date:
- Research Org.:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1039199
- Patent Number(s):
- 8143189
- Application Number:
- 12/402,948
- Assignee:
- UChicago Argonne, LLC (Chicago, IL)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES
- DOE Contract Number:
- W-31-109-ENG-38
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 77 NANOSCIENCE AND NANOTECHNOLOGY
Citation Formats
Vajda, Stefan, Pellin, Michael J, Elam, Jeffrey W, Marshall, Christopher L, Winans, Randall A, and Meiwes-Broer, Karl-Heinz. Subnanometer and nanometer catalysts, method for preparing size-selected catalysts. United States: N. p., 2012.
Web.
Vajda, Stefan, Pellin, Michael J, Elam, Jeffrey W, Marshall, Christopher L, Winans, Randall A, & Meiwes-Broer, Karl-Heinz. Subnanometer and nanometer catalysts, method for preparing size-selected catalysts. United States.
Vajda, Stefan, Pellin, Michael J, Elam, Jeffrey W, Marshall, Christopher L, Winans, Randall A, and Meiwes-Broer, Karl-Heinz. Tue .
"Subnanometer and nanometer catalysts, method for preparing size-selected catalysts". United States. https://www.osti.gov/servlets/purl/1039199.
@article{osti_1039199,
title = {Subnanometer and nanometer catalysts, method for preparing size-selected catalysts},
author = {Vajda, Stefan and Pellin, Michael J and Elam, Jeffrey W and Marshall, Christopher L and Winans, Randall A and Meiwes-Broer, Karl-Heinz},
abstractNote = {Highly uniform cluster based nanocatalysts supported on technologically relevant supports were synthesized for reactions of top industrial relevance. The Pt-cluster based catalysts outperformed the very best reported ODHP catalyst in both activity (by up to two orders of magnitude higher turn-over frequencies) and in selectivity. The results clearly demonstrate that highly dispersed ultra-small Pt clusters precisely localized on high-surface area supports can lead to affordable new catalysts for highly efficient and economic propene production, including considerably simplified separation of the final product. The combined GISAXS-mass spectrometry provides an excellent tool to monitor the evolution of size and shape of nanocatalyst at action under realistic conditions. Also provided are sub-nanometer gold and sub-nanometer to few nm size-selected silver catalysts which possess size dependent tunable catalytic properties in the epoxidation of alkenes. Invented size-selected cluster deposition provides a unique tool to tune material properties by atom-by-atom fashion, which can be stabilized by protective overcoats.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Mar 27 00:00:00 EDT 2012},
month = {Tue Mar 27 00:00:00 EDT 2012}
}
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