Ionic conductivity of new ambient temperature alkali metal glasses A1C1{sub 3}/NaN(CN){sub 2}.
Ambient temperature alkali glassy salt mixtures, x[AlCl{sub 3}]/(1 - x)[NaN(CN){sub 2}] (x = 0.4-0.75), were prepared. A large increase in the C{triple_bond}N stretching frequencies for these materials indicate complex formation between the anion [N(CN){sub 2}]{sup -} and AlCl{sub 3} molecule. Ab initio calculations confirm the assignments of the vibrational frequencies. The 1:1 adduct has a glass transition at 27 {sup o}C, and the glassy state persists for 4 weeks at room temperature. The room temperature ionic conductivity of this glass is 6.6 x 10{sup -6} S/cm, and it increases as the AlCl{sub 3} content increases. The temperature dependence of the conductivity follows the Vogel-Tamman-Fulcher equation, suggesting that ion transport is coupled to local motion in the glassy salt mixture system.
- Research Organization:
- Argonne National Laboratory (ANL)
- Sponsoring Organization:
- SC; DOD
- DOE Contract Number:
- AC02-06CH11357
- OSTI ID:
- 942775
- Report Number(s):
- ANL/CHM/JA-34524
- Journal Information:
- Chem. Mater., Journal Name: Chem. Mater. Journal Issue: 6 ; Jun. 2000 Vol. 12; ISSN CMATEX; ISSN 0897-4756
- Country of Publication:
- United States
- Language:
- ENGLISH
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