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Synthesis of High Surface Area Foams for Functional and Structural Applications

Ames Laboratory

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Technology Marketing SummaryA substantially higher surface area is very desirable in porous metallic bulk materials for functional applications such as catalysts, hydrogen storage or high-sensitivity sensors. Traditionally, high surface area functional materials are prepared as powders. The development of this new process made it possible to fabricate them into a useable monolithic structure with high levels of connected, exposed surface areas.DescriptionIowa State University and Ames Laboratory researchers developed a synthesis method which provides flexibility to control pore morphology, size, and distribution in alloys. The method provides the opportunity to achieve pore sizes several orders of magnitude smaller than currently achievable. The process is not limited metallic glass-forming compositions, and therefore, opens the process to a wide range of alloy compositions.

In addition to porous metallic structures, the method opens opportunities to obtain porous monolithic ceramic structures used for high temperature gas and particulate filters, which cannot readily be processed in the liquid state. It is also possible to produce biocompatible materials with low density as well as chemical and biological inertness.
BenefitsControl of pore morphology and size with the option of an extremely high surface area that may be easily produced.Applications and IndustriesMonolithic catalyst, hydrogen storage, sensors, biocompatible porous materials (implants which promote bone and tissue growth).More InformationPublication: "Nanoporous metallic glass with high surface area" M. H. Lee and D. J. Sordelet Scripta Materiala 55, 947 (2006). "Synthesis of Bulk Metallic Glass Foam by Powder Extrusion with a Fugitive Second Phase" M. H. Lee and D. J. Sordelet Applied Physics Letters, 89, 021921 (2006).Technology Status
Technology IDDevelopment StageAvailabilityPublishedLast Updated
3389Development - Synthesis routes have been defined and materials have been produced. Patent application has been filed.Available12/07/201012/15/2010

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