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Williamson, M. J., Southall, J. P., Hubbard, H. V.St. A., Johnston, Sean F., Davies, G. R., and Ward, I. M. (1998) NMR measurements of ionic mobility in model polymer electrolyte solutions. Electrochimica Acta, 43 (10-11). pp. 1415-1420. ISSN 0013-4686 (doi:10.1016/S0013-4686(97)10077-9)
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Abstract
19-F and 7-Li pulsed field gradient (PFG) NMR measurements have been undertaken to determine anion and cation diffusion coefficients of tetraethylene glycol dimethyl ether/LiCF3SO3 and N,N dimethyl formamide/LiCF3SO3 solutions over a range of temperatures and concentration. The diffusion of the solvent molecules has been determined by 1-H PGF NMR measurements. In addition, viscosity and ionic conductivity conductivity measurements have been undertaken. The ionic diffusion and ionic conductivity data are discussed in terms of the Nernst-Einstein equation and the relationship between ionic diffusion and viscosity are considered in terms of the Stokes-Einstein equation. Finally NMR T1 data are considered in terms of diffusion and rotation of solvent molecules.
| Item Type: | Article |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s): | Johnston, Prof Sean |
| Authors: | Williamson, M. J., Southall, J. P., Hubbard, H. V.St. A., Johnston, Sean F., Davies, G. R., and Ward, I. M. |
| Subjects: | Q Science > QC Physics Q Science > QD Chemistry T Technology > TP Chemical technology |
| College/School: | College of Social Sciences > School of Interdisciplinary Studies |
| Journal Name: | Electrochimica Acta |
| ISSN: | 0013-4686 |
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