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The influence of interfacial interactions on the conductivity and phase behaviour of organic ionic plastic crystal/polymer nanoparticle composite electrolytes
dc.contributor.author | Nti, Frederick | |
dc.contributor.author | Porcarelli, Luca | |
dc.contributor.author | Greene, George W. | |
dc.contributor.author | Zhu, Haijin | |
dc.contributor.author | Makhlooghiazad, Faezeh | |
dc.contributor.author | Mecerreyes Molero, David | |
dc.contributor.author | Howlett, Patrick C. | |
dc.contributor.author | Forsyth, Maria | |
dc.contributor.author | Wang, Xiaoen | |
dc.date.accessioned | 2021-03-01T19:36:47Z | |
dc.date.available | 2021-03-01T19:36:47Z | |
dc.date.issued | 2020-02-21 | |
dc.identifier.citation | Journal of Materials Chemistry A 8(10) : 5350-5362 (2020) | es_ES |
dc.identifier.issn | 2050-7496 | |
dc.identifier.uri | http://hdl.handle.net/10810/50406 | |
dc.description | Unformatted postprint | es_ES |
dc.description.abstract | Organic ionic plastic crystals (OIPCs) have been recognised as promising solid-state electrolyte materials for next-generation energy storage devices. Recently, the addition of polymer nanofillers to OIPCs has led to the design of OIPC-based solid-state electrolytes with enhanced mechanical stability and ion conductivity. However, the mechanisms of enhancement and the influence of different polymer surface chemistries on the ion dynamics are not yet well understood, which has hindered the further development of high-performance OIPC-based electrolytes. In this work, we selected two different polymer nanoparticles, poly(vinylidene fluoride) (PVDF) and polystyrene (PS), and investigated the effects of the polymer surfaces on the thermal behaviour and ion transport properties of the OIPC, N-ethyl N-methyl pyrrolidinium bis(fluorosulfonyl)imide ([C2mpyr][FSI]). We found significantly different thermal behaviours, as well as ion transport properties in the OIPC/nanoparticle composites. Specifically, compared with pure [C2mpyr][FSI], the addition of PVDF nanoparticles effectively enhanced the ion conductivity of the OIPC composite, with the optimum achieved near the percolation threshold of PVDF nanoparticles. In contrast, the addition of PS nanoparticles to the OIPC led to a slight enhancement at low concentrations and then a significant decrease in conductivity at higher concentrations. DSC, FTIR and EIS confirm that the interaction between the PVDF nanoparticles and the OIPC induces the formation of less ordered OIPC layers on the PVDF surfaces, leading to the conductivity enhancement. Finally, different structure models based on the results of this work are proposed, which provide principle guidelines for the design of future OIPC-based highly conductive electrolyte materials. | es_ES |
dc.description.sponsorship | The authors would like to thank Dr Wesley A. Henderson for his valuable discussion and the US Army Research Office (ARO) for financial support (W911NF1710560). The Australian Research Council (ARC) is acknowledged for support through the Australian Postgraduate Awards and Deakin University postgraduate research scholarships. L. P. received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Skłodowska–Curie grant agreement No. 797295. Dr Ruhamah Yunis is also acknowledged for her help with plastic crystal synthesis. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Royal Society of Chemistry | es_ES |
dc.relation | info:eu-repo/grantAgreement/EC/H2020/797295 | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.title | The influence of interfacial interactions on the conductivity and phase behaviour of organic ionic plastic crystal/polymer nanoparticle composite electrolytes | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.holder | © The Royal Society of Chemistry 2020 | es_ES |
dc.relation.publisherversion | https://doi.org/10.1039/C9TA12827A | es_ES |
dc.identifier.doi | 10.1039/C9TA12827A | |
dc.departamentoes | Polímeros y Materiales Avanzados: Física, Química y Tecnología | es_ES |
dc.departamentoeu | Polimero eta Material Aurreratuak: Fisika, Kimika eta Teknologia | es_ES |