High Throughput Screening for the Discovery of More Efficient Catalysts for Emissions Control
High-throughput synthesis and screening methods have been developed for the discovery of highly active catalysts for the control of emissions from stationary and mobile sources. Low temperature CO oxidation, CO methanation, NOx abatement and the destruction of Volatile Organic Compounds (VOCs) will be discussed. The discovery libraries for primary screening consisted of both 11x11 and 16x16 catalyst arrays on 3 inch and 4 inch quartz wafers, respectively. Catalysts were prepared by robotic liquid dispensing techniques and screened for catalytic activity in Symyx's Scanning Mass Spectrometer. The screening protocols encompassed mixed metal oxides, perovskites and supported base and noble metals. Active hits were further optimized in focus libraries using shallower compositional gradients. The ScanMS is a fast serial screening tool that uses flat wafer catalyst surfaces, local laser heating, a scanning/sniffing nozzle and a quadrupolar mass spectrometer to compare relative catalytic activities. The temperature range from 200C to 600C is accessible. Typically, 256 catalysts can be screened per day and about 100,000 experiments conducted annually.
- Research Organization:
- Symyx Technologies, Inc., Santa Clara, CA (US)
- Sponsoring Organization:
- Sponsor not identified (US)
- OSTI ID:
- 826135
- Resource Relation:
- Conference: 227th American Chemical Society Meeting, Anaheim, CA (US), 03/29/2004--04/01/2004; Other Information: PBD: 31 Mar 2004
- Country of Publication:
- United States
- Language:
- English
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