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High Surface Area Oxide Powders by Coprecipitation

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Nanosized oxide materials with high surface area are of interest for a wide range of applications including gas sensors, abrasives, electrode materials for solid oxide fuel cells, etc. Various solution based coprecipitation methods for synthesizing these nanosized oxide materials have been reported. These conventional coprecipitation methods use chemicals such as ammonium hydroxide and hydrazine hydrate, urea, etc as the precipitation agents. However, each of these conventional methods has the disadvantage that hard agglomerates are formed.

Researchers at the University of Maryland have come up with a novel coprecipitation method for the preparation of nanocrystalline oxide particles with uniform size distribution. The advantages of the above novel coprecipitation method are as follows:
1) Precipitation occurs at room temperature.
2) As synthesized materials are crystalline.
3) No further annealing is needed for crystallization.
4) Particle size ranging from 1.5-3 nm.
5) Relatively inexpensive.
6) No formation of hard agglomerates during preparation.

For additional information, please contact the Office of Technology Commercialization, University of Maryland College Park, via phone at (301) 405 -3947 or e-mail at

Contact Info

Office of Technology Commercialization
2130 Mitchell Building
7999 Regents Dr.
University of Maryland
College Park, MD 20742
Phone: (301) 405-3947 | Fax: (301) 314-9502