Structure and enhanced proton conductivity in composites of antimony(III) oxide and mordenite

✍ Scribed by Robert C.T. Slade; Gary B. Hix; Bernard Ducourant

• Book ID: 104296735
• Publisher: Elsevier Science
• Year: 1997
• Tongue: English
• Weight: 551 KB
• Volume: 99
• Category: Article
• ISSN: 0167-2738
• DOI: 10.1016/s0167-2738(97)00246-4

✦ Synopsis

Composite proton-conducting materials containing mordenite and micro-particulate hydrous Sb,O, have been prepared. Materials characterisation employed X-ray powder diffractometry (XRD), 29Si and 27A1 MAS-NMR, "'Sb Mijssbauer spectroscopy and a.c. conductivity studies. Sb,O,-mordenite composites show conductivity enhancements (relative to parent Na mordenite) similar to those reported for 'tin mordenite'; components in both systems comprise a hydrous oxide and de-aluminated zeolite. Both XRD and MAS-NMR reveal de-aluminationldisruption of the framework of the zeolite to be less extensive than in previously investigated composites of antimonic acid and mordenite; which did not exhibit conductivity enhancements.