Structural Changes and Electrochemical Stability of Ionogel Incorporating Tetraethyl Orthosilicate and PVDF-HFP

Ji Wei Suen; Naveen Elumalai; Sujan Debnath; Nabisab Mubarak; Chye ing Lim; Reddy Mohan

doi:10.1051/matecconf/202337701006

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Structural Changes and Electrochemical Stability of Ionogel Incorporating Tetraethyl Orthosilicate and PVDF-HFP

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Structural Changes and Electrochemical Stability of Ionogel Incorporating Tetraethyl Orthosilicate and PVDF-HFP

Ji Wei Suen, Naveen Elumalai, Sujan Debnath, Nabisab Mubarak, Chye ing Lim and Reddy Mohan

MATEC Web of Conferences, Vol.377, pp.1-8

Curtin Global Campus Higher Degree by Research Colloquium, 2022 (Miri Sarawak, Malaysia, 12-Dec-2022–13-Dec-2022)

EDP Sciences

2023

DOI: https://doi.org/10.1051/matecconf/202337701006

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Abstract

Compatibility

Incompatibility

Ion currents

Ionic liquids

Lithium-ion batteries

Microscopy

Optical microscopy

Polymers

Porous media

Tetraethyl orthosilicate

Thermal stability

Thermophysical properties

Ionogels are emerging hybrid materials and are widely studied due to the combination of thermophysical properties from ionic liquid and mechanical integrity from the polymer matrix. Ionic liquid has received wide attention due to its promising properties, high ionic conductivity, and thermal stability. The liquid nature of ionic liquid has restricted its application. Thus, the confinement of ionic liquid within a polymer matrix has allowed ionogel to be applied in strain sensors and lithium-ion batteries. Nevertheless, the compatibility between the polymer matrix and ionic liquid is crucial for ionogel. Incompatibility between polymer host and ionic liquid results in low ionic conductivity, poor mechanical strength, and undesired for practical application. The interaction between polymer matrix and ionic liquid is studied in this study through optical microscopy. The addition of ionic liquid resulted in the disappearance of the polymer matrix’s highly porous nature, as evidenced by the optical microscopy images. This disappearance of the porous nature suggests the compatibility of the polymer matrix with ionogel. Furthermore, the electrochemical stability of the ionogel is also examined through linear sweep voltammetry technique and achieved 2.3V.

Details

Title: Structural Changes and Electrochemical Stability of Ionogel Incorporating Tetraethyl Orthosilicate and PVDF-HFP
Authors: Ji Wei Suen - Curtin University Sarawak
Naveen Elumalai - Charles Darwin University
Sujan Debnath - Curtin University Sarawak
Nabisab Mubarak - Universiti Teknologi Brunei
Chye ing Lim - Curtin University Sarawak
Reddy Mohan - Curtin University Sarawak
Publication details: MATEC Web of Conferences, Vol.377, pp.1-8
Conference details: Curtin Global Campus Higher Degree by Research Colloquium, 2022 (Miri Sarawak, Malaysia, 12-Dec-2022–13-Dec-2022)
Publisher: EDP Sciences
Date published: 2023
DOI: 10.1051/matecconf/202337701006
ISSN: 2261-236X
Copyright note: © The Authors, published by EDP Sciences. This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0/).
Grant note: The authors would like to acknowledge the funding support given by the Fundamental Research Grant Scheme (Reference Code: FRGS/1/2020/TK0/CURTIN/03/2; Project ID: 18019) from the Ministry of Higher Education Malaysia (MOHE), Malaysia.
Organisation Unit: School of Science, Technology and Engineering
Language: English
Record Identifier: 991216649402621
Output Type: Conference paper

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