Examinar por departamento (eus.) "Kimika ez-organikoa"
Now showing items 21-40 of 77
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Flat-shaped carbon-graphene microcomposites as electrodes for high energy supercapacitors
(Royal Society of Chemistry, 2019-06-28)Herein, we report a simple approach for the preparation of phosphate-functionalized carbonaceous graphene-based composites. The homogeneous deposition of a thin layer of phenolic resin on the surface of graphene oxide (GO) ... -
Funcionalización y estudio de nanopartículas de magnetita para su aplicación en terapias de hipertermia magnética
(2015-12-18)La compatibilidad de tamaño de las estructuras nanométricas con las dimensiones de los sistemas biológicos han posibilitado el desarrollo de una serie de estrategias terapeúticas y de diagnosis que podrían evitar muchos ... -
Graphene as Vehicle for Ultrafast Lithium Ion Capacitor Development Based on Recycled Olive Pit Derived Carbons
(Electrochemical Society, 2019-08-21)Herein we report a series of lithium ion capacitors (LICs) with extraordinary energy-to-power ratios based on olive pit recycled carbons and supported on graphene as a conducting matrix. LICs typically present limited ... -
Graphene-coffee waste derived carbon composites as electrodes for optimized lithium ion capacitors Author links open overlay panel
(Pergamon-Elsevier, 2020-06)Herein we report an easy, ecofriendly and cheap synthetic approach for the preparation of carbon composites from the pyrolysis and activation of coffee waste and graphene oxide, and their evaluation as potential electrodes ... -
Graphene-related materials for electrochemical capacitors
(2016-11-18)The research described throughout this doctoral thesis has been carried out at CICenergiGUNE, an Energy Cooperative Research Centre, located in Miñano (Alava,Spain).Doctor Javier Carretero-González and Professor Teófilo ... -
High voltage cathodes for Na-ion batteries: Na3V2O2x(PO4)2F3-2x system
(2014-07-14)Batteries are one of the most promising energy storage devices. Among them, sodium-ion batteries are presented as the best alternative to lithium-ion batteries especially in the field of stationary energy storage due to ... -
High Voltage Mg-Doped Na 0.67 Ni 0.3 − x Mg x Mn 0.7 O 2 ( x = 0.05, 0.1) Na- Ion Cathodes with Enhanced Stability and Rate Capability
(American Chemical Society, 2016-07-26)Magnesium substituted P2-structure Na0.67Ni0.3Mn0.7O2 materials have been prepared by a facile solid-state method and investigated as cathodes in sodium-ion batteries. The Mg-doped materials described here were characterized ... -
Highly packed graphene–CNT films as electrodes for aqueous supercapacitors with high volumetric performance
(Royal Society of Chemistry, 2018-01-24)The increasing complexity of portable electronics demands the development of energy storage devices with higher volumetric energy and power densities. In this work we report a simple strategy for the preparation of partially ... -
Hybrid polyoxometalates: synthesis, crystal structures, thermostructural behavior and anchoring to tailored polymeric surfaces
(2017-09-08)Los polioxometalatos (POMs) son una familia de clústeres aniónicos que presentan una gran diversidad estructural, topológica, electrónica y reactiva. La preparación de materiales híbridos en base POM constituye uno de los ... -
Immobilization of Polyoxometalates on Tailored Polymeric Surfaces
(MDPI, 2018-03)Herein we describe the preparation of hybrid polymer-inorganic interfaces by the immobilization of polyoxometalate nanoclusters on functionalized polymer surfaces. The polymeric surfaces were made of polystyrene-b-poly(acrylic ... -
Incommensurate crystal structure, thermal expansion study and magnetic properties of (dimethylimidazolium)2[Fe2Cl6(μ-O)]
(IOP, 2020-01-01)A thorough characterization of the title compound, (dimim)(2)[Fe2Cl6(mu-O)], consisting of a (mu-oxido)-bridged binuclear iron(III) complex and 1,3-dimethylimiazolium (dimim) cation, has been performed using a wide range ... -
Ionothermal Synthesis of Cadmium Coordination Polymers: Ionic Liquid Effects on the Synthesis, Structural, and Thermal Characterization
(MDPI, 2019-11-09)Ionothermal synthesis is a little used method for the preparation of coordination polymers. By this method, two cadmium compounds were synthesized, 1, with formula Cd-3(ox)F-2(Ina)(2) (Ina = isonicotinate) and 2, Cd(NO3)(2)(4,4 ... -
Isoreticular chemistry and applications of supramolecularly assembled copper−adenine porous materials
(American Chemical Society, 2023-11-01)The useful concepts of reticular chemistry, rigid and predictable metal nodes together with strong and manageable covalent interactions between metal centers and organic linkers, have made the so-called metal–organic ... -
Low and high voltage stability of Na-ion battery materials: study of structural, transport and interfacial properties
(2016-10-14)El proyecto de tesis aquí expuesto trata sobre del estudio de las propiedades estructurales y de transporte, así como de las interfases, en tres materiales de electrodo de bajo y alto voltaje para baterías de ion-sodio ... -
Magnetic and Photoluminescent Sensors Based on Metal-Organic Frameworks Built up from 2-aminoisonicotinate
(2020-06-01)In this work, three isostructural metal-organic frameworks based on first row transition metal ions and 2-aminoisonicotinate (2ain) ligands, namely, {[M(mu-2ain)2]·DMF}n [MII=Co (1), Ni (2), Zn (3)], are evaluated for their ... -
Métodos no convencionales para la preparación de polímeros de coordinación porosos. Una aproximación económica, medioambientalmente amigable y escalable
(2015-07-16)En la última década, se ha puesto de relieve una nueva clase de material cristalino poroso con esqueleto híbrido, formado por la unión de iones o clústeres metálicos a través de ligandos puentes, los MOFs (Metal-Organic ... -
Microwave Resonant and Zero-Field Absorption Study of Doped Magnetite Prepared by a Co-Precipitation Method
(MDPI, 2014-06)Fe3O4 and ZnxFe3-xO4 pure and doped magnetite magnetic nanoparticles (NPs) were prepared in aqueous solution (Series A) or in a water-ethyl alcohol mixture (Series B) by the co-precipitation method. Only one ferromagnetic ... -
Na-Ion Batteries—Approaching Old and New Challenges
(Wiley, 2020-10-11)The last 10 years established the beginning of a post-lithium era in the field of energy storage, with the renaissance of Na-ion batteries (NIBs) as alternative for Li-based systems. The development of this technology has ... -
Naphthyl-Containing Organophosphonate Derivatives of Keggin-Type Polyoxotungstates
(MDPI, 2016-06)New organophosphonate derivatives of monovacant Keggin-type polyoxotungstates that contain naphthyl groups have been synthesized and characterized in both solid state and solution. Single-crystal structural analysis shows ... -
Natural and recyclable alginate hydrogels as extracting media for recovering valuable metals of spent lithium-ion batteries from a deep eutectic solvent
(Elsevier, 2023-09-07)With the aim of achieving carbon neutrality, new policies to promote electric vehicle (EV) deployment have been announced in various countries. As EV sales gain market-share, the demand for batteries is growing very rapidly, ...