Examinar por departamento (eus.) "Kimika ez-organikoa"
Now showing items 21-40 of 65
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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 ... -
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 ... -
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 ... -
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 ... -
Nd3+-Doped Lanthanum Oxychloride Nanocrystals as Nanothermometers
(American Chemical Society, 2021-09-16)The development of optical nanothermometers operating in the near-infrared (NIR) is of high relevance toward temperature measurements in biological systems. We propose herein the use of Nd3+-doped lanthanum oxychloride ... -
Non-aqueous Li- and Na-O2 batteries: Study and analysis of electrochemical processes
(2016-12-14)Las baterías M-oxígeno, siendo M un metal alcalino, son conocidas por su extraordinaria densidad energética teórica. En esta tesis se estudian en detalle las reacciones que tienen lugar en las baterías de litio y de sodio ... -
Nuevas arquitecturas de MOSFs ysupraMOFs, basadas en la interacción de complejos de cobre con ligandos carboxilato o polioxoaniones.
(2019-06-21)El desarrollo y mejora de los materiales supone un constante reto para la Ciencia y Tecnología deMateriales. En este sentido, los materiales porosos, en concreto los materiales de tipo MOF y supraMOF,son objeto de gran ... -
Nuevos vanadatos híbridos de metales de transición. Síntesis hidrotermal, estudio estructural y de sus propiedades espectroscópicas y magnéticas
(Servicio Editorial de la Universidad del País Vasco/Euskal Herriko Unibertsitateko Argitalpen Zerbitzua, 2009-05-11)En la búsqueda de nuevos materiales con posibles aplicaciones tecnológicas, los compuestos derivados de los óxidos de vanadio se presentan como una opción idónea, dada la gran versatilidad estructural de este tipo de ... -
On the Recovery of PLP-Molar Mass Distribution at High Laser Frequencies: A Simulation Study
(MDPI, 2019-08)Due to the inherent difficulties in determination of the degree of branching for polymers produced in pulsed laser polymerization (PLP) experiments, the behavior of the degree of branching and backbiting reaction in high ... -
On the Road to Sustainable Energy Storage Technologies: Synthesis of Anodes for Na-Ion Batteries from Biowaste
(MDPI, 2022-03-22)Hard carbon is one of the most promising anode materials for sodium-ion batteries. In this work, new types of biomass-derived hard carbons were obtained through pyrolysis of different kinds of agro-industrial biowaste ... -
Performance improvement of electrochemical capacitors through the integration of advanced materials and the cell configuration assessment
(2020-10-23)The electrochemical capacitors or supercapacitors are envisioned as potential next-generation energy storage systems because of their excellent storage capacity, power density, and long-term durability. However, all these ... -
Phosphorus-Functionalized Graphene for Lithium-Ion Capacitors with Improved Power and Cyclability
(Wiley, 2021-03)Herein, we report an easy approach for the preparation of graphene-based materials suitable as electrodes for lithium-ion capacitors (LICs). To the best of our knowledge, this is the first time that phosphorus-functionalized ...