scholarly journals Ionic conductivity and relaxation dynamics in plastic crystals with nearly globular molecules

2020 ◽  
Vol 153 (1) ◽  
pp. 014502
Author(s):  
D. Reuter ◽  
K. Seitz ◽  
P. Lunkenheimer ◽  
A. Loidl
Keyword(s):  
Ionic Conductivity ◽  
Relaxation Dynamics ◽  
Plastic Crystals

scholarly journals Mixed Ionic-Electronic Conductors Based on PEDOT:PolyDADMA and Organic Ionic Plastic Crystals

Polymers ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 1981
Author(s):  
Rafael Del Olmo ◽  
Nerea Casado ◽  
Jorge L. Olmedo-Martínez ◽  
Xiaoen Wang ◽  
Maria Forsyth
Keyword(s):  
Energy Storage ◽  
Ionic Conductivity ◽  
Electronic Devices ◽  
Electronic Conductivity ◽  
Ionic Conductivities ◽  
New Materials ◽  
Plastic Crystals ◽  
Energy Storage Applications ◽  
Mixed Ionic Electronic Conductors ◽  
Electronic Conductors

Mixed ionic-electronic conductors, such as poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS) are postulated to be the next generation materials in energy storage and electronic devices. Although many studies have aimed to enhance the electronic conductivity and mechanical properties of these materials, there has been little focus on ionic conductivity. In this work, blends based on PEDOT stabilized by the polyelectrolyte poly(diallyldimethylammonium) (PolyDADMA X) are reported, where the X anion is either chloride (Cl), bis(fluorosulfonyl)imide (FSI), bis(trifluoromethylsulfonyl)imide (TFSI), triflate (CF3SO3) or tosylate (Tos). Electronic conductivity values of 0.6 S cm−1 were achieved in films of PEDOT:PolyDADMA FSI (without any post-treatment), with an ionic conductivity of 5 × 10−6 S cm−1 at 70 °C. Organic ionic plastic crystals (OIPCs) based on the cation N-ethyl-N-methylpyrrolidinium (C2mpyr+) with similar anions were added to synergistically enhance both electronic and ionic conductivities. PEDOT:PolyDADMA X / [C2mpyr][X] composites (80/20 wt%) resulted in higher ionic conductivity values (e.g., 2 × 10−5 S cm−1 at 70 °C for PEDOT:PolyDADMA FSI/[C2mpyr][FSI]) and improved electrochemical performance versus the neat PEDOT:PolyDADMA X with no OIPC. Herein, new materials are presented and discussed including new PEDOT:PolyDADMA and organic ionic plastic crystal blends highlighting their promising properties for energy storage applications.

scholarly journals Ionic conductivity of deep eutectic solvents: the role of orientational dynamics and glassy freezing

2019 ◽  
Vol 21 (13) ◽  
pp. 6801-6809 ◽  
Author(s):  
Daniel Reuter ◽  
Catharina Binder ◽  
Peter Lunkenheimer ◽  
Alois Loidl
Keyword(s):  
Ionic Conductivity ◽  
Dielectric Spectroscopy ◽  
Deep Eutectic Solvents ◽  
Relaxation Dynamics ◽  
Dipolar Relaxation ◽  
Orientational Dynamics

Dielectric spectroscopy reveals that the ionic conductivity of deep eutectic solvents is closely coupled to their reorientational dipolar relaxation dynamics.

Enhancement of Ionic Conductivity in Organic Ionic Plastic Crystals by Introducing Racemic Ammonium Ions

2018 ◽  
Vol 47 (4) ◽  
pp. 497-499 ◽  
Author(s):  
Masaya Matsuki ◽  
Teppei Yamada ◽  
Shun Dekura ◽  
Hiroshi Kitagawa ◽  
Nobuo Kimizuka
Keyword(s):  
Ionic Conductivity ◽  
Ammonium Ions ◽  
Plastic Crystals

Ionic liquids and plastic crystals utilising the oxazolidinium cation: the effect of ether functionality in the ring

2021 ◽  
Author(s):  
Colin S. M. Kang ◽  
Ruhamah Yunis ◽  
Haijin Zhu ◽  
Cara M. Doherty ◽  
Oliver E. Hutt ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Ionic Conductivity ◽  
Plastic Crystals

The synthesis and characterisation of a series of new oxazolidinium-based salts shows that ether functionality in the ring can have beneficial impacts on properties including ionic conductivity.

Synthesis of pyrrolidinium-based plastic crystals exhibiting high ionic conductivity at ambient temperature

2019 ◽  
Vol 43 (10) ◽  
pp. 4008-4012 ◽  
Author(s):  
Shun Yamaguchi ◽  
Hiromasa Yamada ◽  
Yuko Takeoka ◽  
Masahiro Rikukawa ◽  
Masahiro Yoshizawa-Fujita
Keyword(s):  
Ionic Conductivity ◽  
Ambient Temperature ◽  
High Ionic Conductivity ◽  
Plastic Crystals

Pyrrolidinium-based plastic crystals were synthesised with various anions to investigate the effect of the anion structure on the properties.

Ionic Conductivity and Relaxation Dynamics in Li$_{2}$B$_{4}$O$_{7}$-ZnO Compound Glasses

2016 ◽  
Vol 66 (1) ◽  
pp. 6-12
Author(s):  
Young Hoon RIM ◽  
Mac KIM ◽  
Yong Suk YANG
Keyword(s):  
Ionic Conductivity ◽  
Relaxation Dynamics

The influence of anion chemistry on the ionic conductivity and molecular dynamics in protic organic ionic plastic crystals

2018 ◽  
Vol 20 (6) ◽  
pp. 4579-4586 ◽  
Author(s):  
Jun Rao ◽  
R. Vijayaraghavan ◽  
Yundong Zhou ◽  
Patrick C. Howlett ◽  
Douglas R. MacFarlane ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Ionic Conductivity ◽  
Plastic Crystals ◽  
Magnitude Difference

Protic organic ionic plastic crystals based on different anions exhibit more than two orders of magnitude difference in conductivity.

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