Aerogel and xerogel synthesis of solid oxide fuel cell materials through a non-alkoxide sol-gel method

Christopher N. Chervin, Brady J. Clapsaddle, Alexander E. Gash, Robert S. Glass, Joe H. Satcher, Susan M. Kauzlarich

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Sol-gel synthesis of transition and rare earth metal oxide materials used in advanced electrochemical devices, such as solid oxide fuel cells (SOFC), is desirable because of the homogeneous, nanocrystalline nature of the resulting ceramics. Development of non-alkoxide sol-gel methods may prove beneficial for the fabrication of SOFC devices. Aerogels and xerogels of the SOFC materials Y 2O 3-stabilized ZrO 2 and La 0.85Sr 0.15MnO 3 were prepared using a non-alkoxide, proton scavenging sol-gel method. This method was conducted in water or other polar solvents using metal chloride precursors with epoxides, such as trimethylene oxide or propylene oxide, acting to scavenge protons from the system. The resulting pH gradient allows for the relatively slow hydrolysis of the cations and leads to stable gel formation. The resulting gels are converted to aerogels by supercritical drying with CO 2 or to xerogels by slow drying in an ambient atmosphere. This is an abstract of a paper presented at the 229th ACS National Meeting (San Diego, CA 3/13-17/2005).

Original languageEnglish (US)
Title of host publicationACS National Meeting Book of Abstracts
Volume229
Edition1
StatePublished - 2005
Event229th ACS National Meeting - San Diego, CA., United States
Duration: Mar 13 2005Mar 17 2005

Other

Other229th ACS National Meeting
CountryUnited States
CitySan Diego, CA.
Period3/13/053/17/05

ASJC Scopus subject areas

  • Chemistry(all)

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    Chervin, C. N., Clapsaddle, B. J., Gash, A. E., Glass, R. S., Satcher, J. H., & Kauzlarich, S. M. (2005). Aerogel and xerogel synthesis of solid oxide fuel cell materials through a non-alkoxide sol-gel method. In ACS National Meeting Book of Abstracts (1 ed., Vol. 229)