790 documents found, page 1 of 79
Sustainable lignin-reinforced chitosan membranes for efficient Cr(VI) water rem...
Castro, Ana S.; Cruz, Bárbara D. D.; Correia, Daniela M.; Lanceros-Méndez, S.; Martins, Pedro M.The pollution of aquatic environments is a growing problem linked to population growth and intense anthropogenic activities. Because of their potential impact on human health and the environment, special attention is paid to contaminants of emerging concern, namely heavy metals. Thus, this work proposes the use of naturally derived materials capable of adsorbing chromium (VI) (Cr(VI)), a contaminant known for i...
Solid electrolytes based on i-carrageenan and different ionic liquids for susta...
Polícia, R.; Serra, J. P.; del Campo, Francisco Javier; Vilas-Vilela, J. L.; Correia, Daniela M.; Costa, Carlos Miguel Silva; Lanceros-Méndez, S.The increase in electronic waste (e-waste) is a significant global concern due to fast technological development in which products rapidly become obsolete. To mitigate this problem in the field of electrochromic devices, four different types of solid polymer electrolytes (SPEs) were developed based on iota-carrageenan, a water-soluble biopolymer, and 40 wt% concentration of different ionic liquids (ILs): 1-buty...
Toward sustainable electroluminescent devices for lighting and sensing
Polícia, Rita; Peřinka, Nikola; Mendes‐Felipe, Cristian; Martins, Pedro; Correia, Daniela M.; Lanceros-Méndez, S.In today’s rapidly evolving technological landscape, electroluminescentdevices have emerged as pivotal components, illuminating a path towardenergy-efficient lighting solutions, advanced displays, and integrated sensingtechnologies, profoundly impacting sectors ranging from consumerelectronics to sustainable urban development. Based in suchsocio-scientific-economic scenario, and in the pursuit of sustainable anden...
Thermochromic poly(L-lactic acid) based materials and their printability on dif...
Cruz, B. D. D.; Silva, I. R.; Pereira, N.; Fernandes, L. C.; Tubio, C. R.; Tariq, M.; Esperança, J. M. S. S.; Botelho, Gabriela; Lanceros-Méndez, S.Ionic liquids (ILs) have been combined with different polymer matrixes to develop smart and functional mate rials. Due to their versatility, hybrid materials with specific tailor made properties can be obtained, including printable thermochromic materials, with a strong potential for sensing applications. In this context, the thermochromic IL bis(1-butyl-3-methylimidazolium) tetrachloronickelate ([Bmim]2[ NiCl4...
Theoretical simulation of solid polymer electrolytes based on poly(vinylidene f...
Miranda, D.; Barbosa, J.C.; Gonçalves, R.; Miranda, Francisco; Vilaça, J.; Costa, C.M.; Lanceros-Méndez, S.Solid polymer electrolyte composited by poly(vinylidene fluoride) and lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) has been optimized for solid-state lithium-ion batteries taking into account the LiTFSI concentration. Computer simulations of battery systems was used to evaluate the influence of LiTFSI concentration at different battery operation temperatures (278.15 K, and 353.15 K) and different dischar...
Photoluminescent ionic liquid-poly(vinylidene fluoride) hybrid materials for UV...
Cruz, B. D. D.; Pereira, N.; García Díez, Ander; Botelho, G.; Lanceros-Méndez, S.; Bermudez, V. de Zea; Correia, Daniela M.Smart multifunctional materials have been increasingly applied in different fields of knowledge. In particular, photoluminescent materials have been explored for displays, radiation detection, lamps or anti-counterfeiting applications, among others. This work reports the development of photoluminescent materials based on poly (vinylidene fluoride) (PVDF) polymer incorporating different contents (0, 5, 10, and 2...
Printable ionic liquid modified cellulose acetate for sustainable chromic and r...
Cruz, B. D. D.; Castro, A. S.; Fernandes, L. C.; Pereira, N.; Mendes-Felipe, C.; Tariq, M.; Esperança, J. M. S. S.; Martins, P. M.; Lanceros-Méndez, S.Sustainable technologies and the circular economy paradigms require a reduction of waste, and therefore, research is focusing on the development of sustainable materials and devices capable of being reused, refurbished or recycled. In the present work, printable ionic liquid (IL)-based polymer composites with thermochromic properties have been developed through a more sustainable approach to mitigate the negati...
Influence of ionic liquid characteristics on the performance of ternary solid p...
Barbosa, João Carlos; Correia, Daniela Maria Silva; Nunes, Paulo; Fernandes, Mariana; Fidalgo-Marijuan, Arkaitz; Gonçalves, Renato FerreiraSolid polymer electrolytes (SPEs) are the necessary step towards solid-state lithium-ion batteries (LIBs). Their function as separator and electrolyte allows to increase the safety of energy storage devices by the elimination of the liquid components. In this work, three-component SPEs based on poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) as host polymer, clinoptilolite zeolite, and different ion...
Ionic liquids in the scope of lithium-ion batteries: from current separator mem...
Barbosa, J. C.; Correia, Daniela Maria Silva; Gonçalves, Renato Ferreira; de Zea Bermudez, V.; Lanceros-Méndez, S.; Costa, Carlos Miguel SilvaA relevant issue associated with the environmental impact of current and future technologies is the balance between performance and sustainability. In this regard, there is an effort to increase the sustainability of energy storage systems and, in particular, of lithium-ion batteries, by replacing the most harmful battery components with environmentally friendlier ones. The application of ionic liquids, both as...
Solid polymer electrolytes based on a high dielectric polymer and ionic liquids...
Barbosa, João C.; Pinto, Rafael S.; Correia, Daniela Maria Silva; Tubio, Carmen R.; Gonçalves, Renato Ferreira; Costa, Carlos Miguel SilvaSolid-state batteries were produced using new solid polymer electrolytes (SPEs) based on the high dielectric constant polymer poly(vinylidene fluoride-trifluoroethylene-chlorofluoroethylene), P(VDF-TrFE-CFE) and 40 wt% of different ionic liquids (IL) sharing the same bis(trifluoromethylsulfonyl)imide [TFSI] anion and different cations. The morphological, thermal, mechanical and electrochemical properties of the...