Unique Capabilities at ORNL
ORNL offers a unique combination of skilled staff members and state-of-the-art characterization facilities for catalysis research. ORNL has a variety of capabilities from synthesis and characterization to performance testing on one campus.
Synthesis:
ORNL has expertise in catalyst preparation using a wide variety of synthesis methods. In house synthesis expertise is available for designing and executing many catalyst preparations:
- Porous Materials - oxides and carbon
- Sol-gel materials - oxides and hybrid materials
- Surface functionalization of oxides and carbons
- Chemical synthesis of nanoparticles (metals, oxides, semiconductors)
- Chemical synthesis of 1-dimensional materials (metals, oxides)
- Atomic layer deposition (ALD and surface sol-gel processing for conformal functionalization of support surfaces
- Hydrothermal and solvothermal synthesis
- Graphitization and carbonization
- Physical vapor deposition of metals and metal oxides on thin films and powders
- Traditional impregnation type methods for catalyst synthesis
Structural Characterization:
- Thermal gravimetric analyzer and differential scanning analysis
- Nanozetameter with high-temperature capability
- Volumetric gas adsorption
- Raman Spectroscopy
- ICP for composition analysis
- 500 MHz Liquid/Solid NMR Spectroscopy
- 700 MHz Solid State MAS-NMR with capability to measure quadrupolaqr nuclei
- In-situ X-ray Powder Diffraction
- Ex-situ and in-situ electron microscopy (High-resolution, Aberration Corrected)
(back to Characterization)
Surface Science:
- Multiple UHV systems for surface studies featuring capabilities to
- Reflection absorption infra-red spectroscopy
- X-ray photoelectron spectroscopy
- Temperature programmed desorption
- High resolution electron energy loss spectroscopy
- In-situ metal vapor deposition
- Synchrotron capabilities: ORNL group maintains a surface chemistry end station at U-12b beamline at National Synchrotron Light Source :
- Soft X-ray photoelectron spectroscopy
- Near edge X-ray absorption spectroscopy
- Temperature programmed desorption
- In-situ metal vapor deposition
- Directed gas dosing
- Sample T control 100<T<100K
- Scanned probe techniques : Omicon variable temperature scanning probe microscopy
Catalyst Performance Characterization:
- Plug-flow gas phase catalytic reactor
- Pulsed catalytic reactor
- High pressure flow reactor
- Temperature programmed transformations
- Pulsed Chemisorption
- Plug flow reactor
- Automated potentialmetric surface acid/base titration
- Electrocatalysis
Emission Control:
- Bench-top flow reactor for testing catalysts employing simulated diesel or gasoline engine exhaust, coal-gasification stream etc.
- Five double-ended engine dynamometer
- Three engine dynamometer stands with one/two cylinder engines
- Vehicle chassis dynamometers
(back to Automotive Emissions)
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