Synthesis of β"-Alumina Polymer Precursor and Ultrafine β"-Alumina

Chapter 14

Synthesis of β"-Alumina Polymer Precursor and Ultrafine β"-Alumina Composition Powders 1

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Downloaded by PENNSYLVANIA STATE UNIV on June 8, 2012 | http://pubs.acs.org Publication Date: December 15, 1997 | doi: 10.1021/bk-1998-0681.ch014

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David R. Treadwell , Anthony C. Sutorik , Siew Siang Neo , Richard M. Laine , and Robert C. Svedberg 2

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Departments of Chemistry and Materials Science and Engineering, University of Michigan, 2300 Hayward Avenue, Ann Arbor, MI 48109-2136 Advanced Modular Power Systems, Inc., 4667 Freedom Avenue, Ann Arbor, MI 48108 2

β"-Alumina, an important high-temperature solid electrolyte, was synthesized from inexpensive starting materials via a polymeric, metalloorganic precursor. The precursor, made by reacting NaOH, LiOH, Al(OH) , and triethanolamine (TEA) in ethylene glycol (EG) while distilling off product water, is a glassy thermoplastic at room temperature, and dissolves in polar solvents, e.g. ethanol. Spheroidal, particles of