Synthesis and Characterization of New Pyrrolidinium Based Protic Ionic Liquids. Good and Superionic Liquids

Autor:	Daniel Lemordant, Yosra Dridi, Mérièm Anouti, Magaly Caillon-Caravanier, Hervé Galiano
Rok vydání:	2008
Předmět:	Inorganic chemistry Protonation Electrochemistry Pyrrolidine Surfaces Coatings and Films chemistry.chemical_compound Fragility chemistry Ionic liquid Materials Chemistry Ionic conductivity Physical and Theoretical Chemistry Brønsted–Lowry acid–base theory Electrochemical window
Zdroj:	The Journal of Physical Chemistry B. 112:13335-13343
ISSN:	1520-5207 1520-6106
DOI:	10.1021/jp805992b
Popis:	New pyrrolidinium-cation-based protic acid ionic liquids (PILs) were prepared through a simple and atom-economic neutralization reactions between pyrrolidine and Brønsted acids, HX, where X is NO 3 (-), HSO 4 (-), HCOO (-), CH 3COO (-) or CF 3COO (-) and CH 3(CH 2) 6COO (-). The thermal properties, densities, electrochemical windows, temperature dependency of dynamic viscosity and ionic conductivity were measured for these PILs. All protonated pyrrolidinium salts studied here were liquid at room temperature and possess a high ionic conductivity (up to 56 mS cm (-1)) at room temperature. Pyrrolidinium based PILs have a relatively low cost, a low toxicity and exhibit a large electrochemical window as compared to other protic ionic liquids (up 3 V). Obtained results allow us to classify them according to a classical Walden diagram and to determinate their "Fragility". Pyrrolidinium based PILs are good or superionic liquids and shows extremely fragility. They have wide applicable perspectives for fuel cell devices, thermal transfer fluids, and acid-catalyzed reaction media as replacements of conventional inorganic acids.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::28d4f03498e8b87853058a68ba6f13bb https://doi.org/10.1021/jp805992b Zobrazit plný text záznamu