FTIR spectroscopic study of the interaction between NH4+ and DMSO in Nafion.
Spectrochim Acta A Mol Biomol Spectrosc
; 215: 381-388, 2019 May 15.
Article
em En
| MEDLINE
| ID: mdl-30856582
ABSTRACT
Nafion-NH4+ membranes plasticized with dimethyl sulfoxide (DMSO and DMSO-d6) have been investigated at room temperature using the vacuum ATR-FTIR and FTIR absorption spectroscopic technique in the range 50-4000â¯cm-1. The amount of the plasticizer corresponds to the molecular ratio nâ¯=â¯DMSO/NH4+â¯=â¯2.7-13.8. The mutual association of free DMSO molecules in Nafion leads to appearance of weak band at 86â¯cm-1 assigned to dipole-dipole interactions. Also the Raman spectra of dry Nafion-NH4+ membranes were investigated.
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MEDLINE
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En
Ano de publicação:
2019
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Article