Influence of Counteranion on the Properties of Polymerized Ionic Liquids/Ionic Liquids Proton-Exchange Membranes
Source abstract
Abstract
In this work, we developed a family of proton-exchange membranes based on the composites of polymerized ionic liquids and protic ionic liquids using 1-methyl-imidazolium as the cation. The influence of anion groups on physical properties was investigated. Among three composites with bis(trifluoromethanesulfonyl)imide (TFSI), triflate (OTf), and H2PO4 anions, the composite with TFSI anion presents the best ion conductivity. A synergistic effect has been observed for the composite with both TFSI and OTf mixed anion, which showed significantly enhanced ionic conductivity compared to the composites with either anion alone, reaching 1.47 mS/cm at 120 °C. This work highlights the combination of TFSI and OTf anion as a facile and efficient strategy for improving ionic conductivity and shows a promising prospect of polyILs/protic ILs composites as proton-conducting membrane materials.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Fuel Cells and Related Materials · Ionic liquids properties and applications · Advanced battery technologies research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
ARC Centre of Excellence for Electromaterials Science, Institute for Frontier Materials, Deakin University, Geelong, VIC 3216, Australia
POLYMAT, University of the Basque Country UPV/EHU, Joxe Mari Korta Center, Avda. Tolosa 72, Donostia-San Sebastian 20018, Spain
Funding
H2020 Marie Sk??odowska-Curie Actions · Australian Research Council · Centre National de la Recherche Scientifique
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