ISSN:
1572-879X
Keywords:
Nafion
;
acid sites
;
hydronium ions
;
MAS NMR
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract Broad-line1H NMR at 4 K shows that, when Nafion-H interacts with water molecules at low concentrations, the only species formed is the hydronium ion. The chemical shift of the unsolvated hydronium ion in Nafion-H with 1 H2O/SO 3 − , determined by1H MAS NMR at room temperature, is 10.4 ppm relative to external TMS.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00807011
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