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Spontaneous routes to porous and biphasic nanostructured materials through processing
Keywords: Ceramics, Nanostructures, Spontaneous Patterning
Spontaneous – meaning thermodynamically downhill – approaches to nanostructured materials offer the promise of being scalable, allowing nanostructured materials to be easily prepared simply by selecting appropriate gas-solid reaction conditions in their processing. I will illustrate this with examples of hierarchically porous oxide materials, where the finest scale in pore hierarchy displays interesting crystallographic patterns. These spontaneous routes to porous materials are easily modified to yield biphasic functional materials as well, as illustrated by the preparation of biphasic nanocomposite materials that display exchange-biased magnetic behavior. The processing routes developed here have significant implications for preparing ceramic materials that could be used across a number of energy-related applications.
Ram Seshadri, Professor
University of California, Santa Barbara
Santa Barbara, CA

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