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

被引:148
作者
Anouti, Meriem [1 ]
Caillon-Caravanier, Magaly [1 ]
Dridi, Yosra [1 ]
Galiano, Herve [2 ]
Lemordant, Daniel [1 ]
机构
[1] Univ Tours, Equipe Chim Phys Interfaces & Milieux Electrolyt, Lab PCMB, EA 4244, F-37200 Tours, France
[2] CEA, Lab Synth & Transformat Polymeres, LE RIPAULT, F-37260 Monts, France
关键词
D O I
10.1021/jp805992b
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
New pyrrolidinium-cation-based protic acid ionic liquids (PILs) were prepared through a simple and atom-economic neutralization reactions between pyrrolidine and Bronsted acids, HX, where X is NO3-, HSO4-, HCOO-, CH3COO- or CF3COO- and CH3(CH2)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 transger fluids, and acid-catalyzed reaction media as replacements of conventional inorganic acids.
引用
收藏
页码:13335 / 13343
页数:9
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