Nature of intramolecular dynamics in protic ionic glass-former: insight from ambient and high pressure Brillouin spectroscopy

Proton conducting materials play an important role in a variety of electrochemical devices. Especially, the class of protic ionic glass-formers with fast water-independent proton transport within the Grotthuss mechanism has been envisioned as promising fuel cell electrolytes. Nevertheless, despite a...

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Bibliographic Details
Published in:Journal of molecular liquids 2019-05, Vol.282, p.51-56
Main Authors: Pochylski, M., Gapiński, J., Wojnarowska, Z., Paluch, M., Patkowski, A.
Format: Article
Language:English
Subjects:
Brillouin scattering
High pressure
Intramolecular dynamics
Ionic liquids
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Summary:Proton conducting materials play an important role in a variety of electrochemical devices. Especially, the class of protic ionic glass-formers with fast water-independent proton transport within the Grotthuss mechanism has been envisioned as promising fuel cell electrolytes. Nevertheless, despite a number of reports on protic ionic glasses the description of proton transport phenomenon in these systems is still incomplete. Herein, we employed the Brillouin scattering technique to investigate the intramolecular dynamics of acebutolol hydrochloride, protic ionic glass-former with isomerization ability. The studies performed at ambient and elevated pressure revealed the fast relaxation dynamics that may control the proton conductivity, especially at temperatures T 
ISSN:0167-7322
1873-3166
DOI:10.1016/j.molliq.2019.02.131