13 documents found, page 1 of 2
Enhanced performance of solid polymer electrolytes combining poly(vinylidene fl...
Macedo, V. M.; Barbosa, J. C.; Salazar, H.; Fidalgo-Marijuan, A.; Gajjala, R. K. R.; Almásy, L.; Gonçalves, B. F.; Petrenko, V. I.; Silva, M. M.The search for sustainable and high-performance materials for lithium-ion batteries is leading to significant advances in solid polymer electrolyte (SPE) technology. However, the current drawbacks of this approach prove the need for further research and development in the field. Herein, novel ternary solid polymer electrolytes have been developed using varying loads of MOF-808 metal-organic framework and [BMIM]...
Iron oxide/poly (vinylidene fluoride-hexafluoropropylene) membranes for lithium...
Serra, J. P.; Salazar, H.; Fidalgo-Marijuan, A.; Gonçalves, Renato Ferreira; Martins, Pedro M.; Lanceros-Mendez, S.; Costa, Carlos Miguel SilvaThe here presented experiments report on bi-functional iron oxide (Fe3O4)/poly (vinylidene fluoride-hexafluoropropylene) - PVDF-HFP porous membranes prepared through thermal-induced phase separation (TIPS) for As(III) and As(V) adsorption and posterior second life as a lithium-ion battery (LIB) separator considering a circular economy paradigm. The bi-functional membranes' physical-chemical properties, their ab...
Molecular design of functional polymers for organic radical batteries
Barbosa, J. C.; Fidalgo-Marijuan, A.; Dias, J. C.; Gonçalves, Renato Ferreira; Salado, M.; Costa, Carlos Miguel Silva; Lanceros-Méndez, S.The growing demand for energy storage devices calls for the development of more efficient and sustainable systems. As the current lithium-ion batteries present several safety issues, as well as environmental hazards, some alternatives need to be taken into consideration. The area of organic materials based batteries is gaining interest as they allow for the replacing of the currently used metals, with significa...
Silk fibroin and sericin polymer blends for sustainable battery separators
Reizabal, A.; Fidalgo-Marijuan, A.; Gonçalves, R.; Gutiérrez-Pardo, A.; Aguesse, F.; Pérez-Álvarez, L.; Vilas-Vilela. J. L.; Costa, C. M.Natural polymers are a promising alternative for reducing the environmental impact of batteries. For this reason, it is still necessary to study their behavior and implement its use in these devices, especially in separator membranes. This work reports on new separator membranes based on silk fibroin (SF) and silk sericin (SS) prepared by salt leaching method. The effect of the different SS relative content on ...
Sustainable lithium-ion battery separators based on poly(3-Hydroxybutyrate-Co-H...
Barbosa, J. C.; Correia, Daniela Maria Silva; Fidalgo-Marijuan, A.; Gonçalves, R.; Fernandes, M.; de Zea Bermudez, V.; Silva, M. M.; Lanceros-Méndez, S.To address the environmental issues related to lithium-ion batteries, environmentally friendlier separators based on poly(hydroxybutyrate-co-hydroxyvalerate) (PHBV) membranes are prepared by electrospinning. Cobalt ferrite (CFO) fillers can be incorporated to improve the electrochemical properties of the membranes and it is shown that fiber orientation and CFO filler addition have no relevant effect on the phys...
Solid polymer electrolytes based on gellan gum and ionic liquid for sustainable...
Alves, R.; Fidalgo-Marijuan, A.; Campos-Arias, L.; Gonçalves, R.; Silva, Maria Manuela; Del Campo, F. J.; Costa, Carlos Miguel SilvaMaterials sustainability is becoming increasingly relevant in every developed technology and, consequently, environmentally friendly solid polymer electrolytes (SPEs) based on gellan gum and different quantities of ionic liquid (IL) 1- Ethyl-3-methyl-imidazolium-thiocyanate [Emim][SCN] have been prepared and applied in electrochromic devices (ECDs). The addition of the IL does not affect the crystalline phase o...
Metal organic framework modified poly(vinylidene fluoride-co-hexafluoropropylen...
Barbosa, J.; Gonçalves, R.; Valverde, A.; Martins, P. M.; Petrenko, Viktor I.; Márton, Markó; Fidalgo-Marijuan, A.; Fernández de Luis, R.; Costa, C. M.The use of metal-organic frameworks in the separator membrane of lithium-ion batteries is an interesting subject of study for the next generation of energy storage devices. In this work, different poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) / metalorganic framework (MOF) based separators were prepared using three distinct MOFs, and the properties of these membranes were studied. The selected MOF...
Crystal morphology control of synthetic giniite for enhanced photo-Fenton activ...
Martins, Pedro Manuel Abreu; Salazar, H.; Aoudjit, L.; Gonçalves, Renato Ferreira; Zioui, D.; Fidalgo-Marijuan, A.; Costa, Carlos Miguel SilvaMetronidazole (MNZ) is a recalcitrant antibiotic with toxic and carcinogenic effects in aquatic environments. In this work, Fe-5(FO4)(4)(OH)(3)center dot 2H(2)O (giniite) particles were synthesised with three different alkaline cations (Li+, Na+ and K+) and used as Fenton catalysts for MNZ removal. It is shown that the addition of different cations during the hydrothermal synthesis process promote different mor...
High-Performance room temperature Lithium-Ion battery solid polymer electrolyte...
Barbosa, J. C.; Correia, Daniela M.; Fernández, E. M.; Fidalgo-Marijuan, A.; Barandika, G.; Gonçalves, Renato Ferreira; Ferdov, S.; De Zea Bermudez, V.The demand for more efficient energy storage devices has led to the exponential growth of lithium-ion batteries. To overcome the limitations of these systems in terms of safety and to reduce environmental impact, solid-state technology emerges as a suitable approach. This work reports on a three-component solid polymer electrolyte system based on poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP), the ...
Metal-organic frameworks and zeolite materials as active fillers for lithium-io...
Barbosa, J. C.; Gonçalves, Renato Ferreira; Costa, C. M.; De Zea Bermudez, V.; Fidalgo-Marijuan, A.; Zhang, Q.; Lanceros-Méndez, S.The efforts to decarbonize the economies, with particular focus on renewable energies, must be accompanied by the development of more efficient and environmentally friendlier energy storage systems. In this context, all solid-state batteries emerge as one of the most promising candidates for this purpose due to their potentially higher energy density and improved safety with respect to conventional systems. Wit...