Encontrados 11 documentos, a visualizar página 1 de 2
Natural polymer based multifunctional materials for sensing, actuators and batt...
Serra, João Pedro CruzAtualmente, a sociedade está caracterizada por um estilo de vida tecnologicamente sofisticado; no entanto, este avanço na qualidade de vida levou a níveis preocupantes de poluição. Este impacto ambiental é, em parte, o resultado do aumento populacional, mas também à crescente industrialização, e está a tornar-se um problema cada vez mais impactante. De acordo com a Agenda 2030 da ONU, vários países introduziram...
Tailoring poly(vinylidene fluoride-trifluoroethylene-chlorofluoroethylene) memb...
Pinto, Rafael S.; Serra, João Pedro Cruz; Barbosa, João Carlos Pacheco; Silva, Maria Manuela; Salado, Manuel; Fidalgo Marijuan, Arkaitz; Amayuelas, EderNovel battery separators based on poly(vinylidene fluoride-co-trifluoroethylene-chlorofluoroethylene)- P(VDF-TrFE-CFE)- were produced by different processing techniques (non-solvent and thermally induced phase separation, salt leaching and electrospinning), in order to evaluate their effect on separator morphology, degree of porosity and pore size, electrochemical parameters and battery cycling behavior. It has...
Biobased polymers for advanced applications: towards a sustainable future
Gonçalves, Renato Ferreira; Serra, João Pedro Cruz; Reizabal, A.; Correia, D. M.; Fernandes, L. C.; Pereira, R. Brito; Lizundia, E.Rapid technological developments in biomedicine, sensors, actuators and energy areas are taken place in the context of the global digital transformation, supported by the “Industry 4.0″ and “Internet of Things” (IoT) concepts. Those developments must include circular economy considerations in the scope of the 2030 sustainable developments goals to ensure easy access to affordable, sustainable, reliable, and mod...
Lithium based battery systems: technological and environmental challenges and o...
Barbosa, João Carlos Pacheco; Pinto, Rafael Santos; Serra, João Pedro Cruz; Costa, Carlos Miguel Silva; Lanceros-Mendez, S.; Gonçalves, Renato FerreiraThe United Nations has prioritized decarbonization and the reduction of greenhouse gas emissions, leading many countries to implement a roadmap and policies to increase the use of renewable energy sources. This shift has led to a growing demand for efficient energy storage systems, such as rechargeable batteries, which are essential for modern lifestyles, including powering portable devices and electric vehicle...
Improving thermal regulation of lithium-ion batteries by poly(vinylidene fluori...
Serra, João Pedro Cruz; Antunes, Guilherme; Fidalgo-Marijuan, Arkaitz; Salado, Manuel; Gonçalves, Renato Ferreira; He, Weidong; Lanceros-Mendez, S.Separator membranes with thermal regulation properties have been developed for battery systems by the addition of phase change material (PCM) microspheres within the polymer separator. Separator membranes based on PCM microspheres (acrylic core–shell particle) and polymer (poly(vinylidene fluoride-co-hexafluoropropylene)), PVDF-HFP, composites were obtained by thermally induced phase separation (TIPS) with diff...
Next generation sustainable lithium-ion batteries: Micro and nanostructured mat...
Costa, Carlos Miguel Silva; Pinto, Rafael Santos; Serra, João Pedro Cruz; Barbosa, João Carlos Pacheco; Gonçalves, Renato Ferreira; Lanceros-Mendez, S.There is a drive to reduce fossil fuels dependence of society through the implementation of eco-friendlier renewable energy generation systems. However, the energy generated from renewable sources must be properly managed to guarantee the daily energy supply in different scenarios and conditions. To achieve that, energy storage systems, such as electrochemical batteries, can be implemented due to their high per...
Lithium-ion battery separators based on sustainable collagen and chitosan hybri...
Andonegi, Mireia; Serra, João Pedro Cruz; Silva, Maria Manuela; Gonçalves, Renato Ferreira; Costa, Carlos Miguel Silva; Lanceros-Mendez, S.; Caba, KoroThis work focuses on the production of sustainable membranes based on collagen and chitosan as separators in lithium-ion batteries. Membranes were prepared by freeze-drying with varying collagen and chitosan contents. All membranes show interconnected pores with different pore sizes and porosity above 90 %, allowing high values of electrolyte uptake. As for thermal and mechanical characteristics, the addition o...
Metal-Organic Framework functionalized Chitosan/Pectin membranes for solar-driv...
Salazar, Hugo; Rosales, Maibelin; Zarandona, Iratxe; Serra, João Pedro Cruz; Gonçalves, Bruna F.; Valverde, Ainara; Cavalcanti, Leide P.The presence of arsenic as neutral arsenite and oxoanionic arsenate species are a worldwide issue that requires an effective remediation technology capable to remove both As<sup>III</sup> and As<sup>V</sup> from water. In this research we propose the assembly of a membrane build up from chitosan/pectin (CHIPEC) composite biopolymer and the UiO-66-NH<inf>2</inf> porous and photo-active metal–organic framework. C...
Sustainable lithium-ion battery separator membranes based on carrageenan biopol...
Serra, João Pedro Cruz; Fidalgo-Marijuan, Arkaitz; Teixeira, João; Hilliou, L.; Gonçalves, Renato Ferreira; Urtiaga, Karmele; Gutiérrez-Pardo, AntonioAiming to improve the sustainability of materials for lithium-ion batteries (LIBs), this work reports on the development of novel membranes based on iota-carrageenan biopolymer and their suitability as separator in LIBs applications. The membranes are prepared by freeze-drying and its morphology, thermal, mechanical, and electrochemical properties are evaluated as a function of polymer concentration in the solu...
Lithium-Ion battery solid electrolytes based on poly(vinylidene fluoride)-metal...
Serra, João Pedro Cruz; Fidalgo-Marijuan, Arkaitz; Barbosa, João C.; Correia, Daniela Maria Silva; Gonçalves, Renato Ferreira; Porro, José M.Solid polymer electrolytes (SPEs) are required to improve battery safety through the elimination of the liquid electrolyte solution in current batteries. This work reports on the development of an SPE based on poly(vinylidene fluoride), PVDF, with the magnetic ionic liquid (MIL)1-butyl-3-methylimidazolium cobalt(II) isothiocyanate, [BMIM]2[(SCN)4Co], and its battery cycling behavior at room temperature. The add...