The Influences of Excess Sodium on Low‐Temperature NaSICON Synthesis. Issue 12 (11th August 2014)

• Record Type: Journal Article
• Authors: Bell, Nelson S.; Edney, Cynthia; Wheeler, Jill S.; Ingersoll, David; Spoerke, Erik D.; Gouma, P.
• Is Part Of: Journal of the American Ceramic Society. Volume 97:Issue 12(2014)
• Page Start: 3744
• Page End: 3748
• Publication Date: 2014-08-11
• Subjects: Ceramics -- Periodicals; 620.1405
• DOI: 10.1111/jace.13167
• Languages: English
• ISSNs: 0002-7820

Abstract

<abstract abstract-type="main" id="jace13167-abs-0001"> <title> <x xml:space="preserve">Abstract</x> </title> <p>Controlling the materials chemistry of the solid‐state ion conductor NaSICON is key to realizing its potential utility in emerging sodium‐based battery technologies. We describe here the influence of excess sodium on phase evolution of sol‐gel synthesized NaSICON. Alkoxide‐based sol‐gel processing was used to produce powders of Na₃Zr₂PSi₂O₁₂ NaSICON with 0‐2 atomic % excess sodium. Phase formation and component volatility were studied as a function of temperature. NaSICON synthesis at temperatures between 900‐1100°C with up to 2% excess sodium significantly reduced the presence of zirconia, sodium phosphate, and sodium silicate secondary phases in fired NaSICON powders. Insights into the role of sodium on the phase chemistry of sol‐gel processed NaSICON may inform key improvements in NaSICON development.</p> </abstract>