Correlation between configurational entropy, excess entropy, and ion dynamics in imidazolium-based ionic liquids: Test of the Adam–Gibbs model

2021 ◽  
Vol 154 (4) ◽  
pp. 044502
Author(s):  
S. Cheng ◽  
Z. Wojnarowska ◽  
M. Musiał ◽  
M. Paluch
Keyword(s):  
Ionic Liquids ◽  
Excess Entropy ◽  
Configurational Entropy ◽  
Ion Dynamics ◽  
Gibbs Model

scholarly journals Adam-Gibbs model in the density scaling regime and its implications for the configurational entropy scaling

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
Elżbieta Masiewicz ◽  
Andrzej Grzybowski ◽  
Katarzyna Grzybowska ◽  
Sebastian Pawlus ◽  
Jürgen Pionteck ◽  
...  
Keyword(s):  
Configurational Entropy ◽  
Gibbs Model

Non-Spherical Ion Dynamics and Rotational Diffusion for Imidazolium Based Ionic Liquids

ChemPhysChem ◽  
2011 ◽  
Vol 12 (4) ◽  
pp. 757-760 ◽  
Author(s):  
Gordon W. Driver ◽  
Petri Ingman
Keyword(s):  
Ionic Liquids ◽  
Rotational Diffusion ◽  
Ion Dynamics

Applicability of Free Volume Concept to Relaxation Phenomena in the Glass Transition Range

1968 ◽  
Vol 41 (3) ◽  
pp. 555-563
Author(s):  
A. J. Kovacs
Keyword(s):  
Glass Transition ◽  
Free Volume ◽  
Excess Entropy ◽  
Heat Content ◽  
Configurational Entropy ◽  
Wide Distribution ◽  
Dielectric Constants ◽  
Experimental Point ◽  
Transition Range ◽  
Glass Transition Range

Abstract Except for discrepancies mentioned with respect to pressure investigations, which need future clarification, we can conclude in a general way, as follows. As far as only average parameters of macroscopic specimens are considered (complex moduli, or dielectric constants, volume or heat content etc...), the free volume concept can relate variations of molecular mobility to changes of an average free volume in a semiquantitative way. This average free volume can no longer fully characterize the wide variety of molecular motions involved in the kinetics of redistribution of holes in the liquid during recovery experiments. These kinetic processes involve a wide distribution of retardation times, which may be associated with local distribution of holes, or with that of cooperating groups of molecules, or molecular segments. On the other hand, free volume is not necessarily the fundamental molecular parameter which controls rate of configurational changes, characterized by variation of entropy of the liquid. Even if this is the case, most of the above discussion may be applied to any other average excess parameter, as far as the Doolittle equation is formally adopted, in which f/b is expressed in terms of the new parameter, rather than that of free volume. However, since relaxational free volume, as determined from the WLF equation, and independently measured volume changes are often in close agreement, this means that variations of excess entropy, or those of configurational free energy, and changes in volume are closely related. This conclusion is in agreement with that of Eisenberg and Saito, who found that the Gibbs—Dimarzio theory, based on configurational entropy, is practically equivalent with the free-volume approach. Thus, the free volume concept remains still a valuable tool for unifying different kinds of rate processes from both a theoretical and an experimental point of view, especially in the glass transition range.

Ion Dynamics and Transport Properties of Lewis-Acidic Imidazolium Chloroaluminate Ionic Liquids

2021 ◽  
Author(s):  
Tyler Cosby ◽  
Michael J. Schnabel ◽  
David P Durkin ◽  
Robert Mantz ◽  
Paul Trulove
Keyword(s):  
Ionic Liquids ◽  
Transport Properties ◽  
Ion Dynamics

scholarly journals A Combined Theoretical and Experimental Study of the Influence of Different Anion Ratios on Lithium Ion Dynamics in Ionic Liquids

2014 ◽  
Vol 118 (26) ◽  
pp. 7367-7375 ◽  
Author(s):  
Volker Lesch ◽  
Sebastian Jeremias ◽  
Arianna Moretti ◽  
Stefano Passerini ◽  
Andreas Heuer ◽  
...  
Keyword(s):  
Experimental Study ◽  
Ionic Liquids ◽  
Lithium Ion ◽  
Ion Dynamics

Probing Nanoscale Ion Dynamics in Ultrathin Films of Polymerized Ionic Liquids by Broadband Dielectric Spectroscopy

2016 ◽  
Vol 5 (9) ◽  
pp. 1065-1069 ◽  
Author(s):  
Maximilian Heres ◽  
Tyler Cosby ◽  
Emmanuel Urandu Mapesa ◽  
Joshua Sangoro
Keyword(s):  
Ionic Liquids ◽  
Dielectric Spectroscopy ◽  
Ultrathin Films ◽  
Ion Dynamics ◽  
Broadband Dielectric Spectroscopy
Sign in / Sign up

Export Citation Format

Share Document