Exploració per tema "Electròlits"
Ara es mostren els items 1-18 de 18
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Aqueous electrolytes confined within functionalized silica nanopores
(2011-09-09)
Article
Accés obertMolecular dynamics simulations have been carried out to investigate structural and dynamical characteristics of NaCl aqueous solutions confined within silica nanopores in contact with a “bulk-like” reservoir. Two types of ... -
Determinación del coeficiente de difusión de colorantes directos y su relación con la concentración del electrolito.
(Instituto de Investigación Textil y Cooperación Industrial, 1969-04)
Article
Accés obertEste trabajo consta de dos partes. La primera de ellas consiste en establecer una técnica adecuada para las determinaciones de los coeficientes de difusión, y la segunda parte es el estudio de la influencia del electrolito ... -
Disseny i caracterització de biosensors pel monitoratge de marcadors en l'entorn esportiu i sanitari
(Universitat Politècnica de Catalunya, 2023-07-21)
Treball Final de Grau
Accés obert
Realitzat a/amb: Onalabs Inno-HubCurrently, the sports community is in search of portable devices with the ability to monitor their training and recovery process accurately and continuously, with the primary goal of maximizing their physical performance ... -
Efecto de la temperatura en los electrolitos de YSZ obtenidos por proyección térmica para las pilas de combustible de óxido solido
(Universitat Politècnica de Catalunya, 2015-02)
Projecte/Treball Final de Carrera
Accés obertLas pilas de combustible son sistemas electroquímicos en los cuales la energía química se transforma directamente en electricidad a través de una reacción redox. Una pila de combustible permite producir electricidad en ... -
Evaluación de un sistema electrónico de monitorización fisiológica en plantas
(Universitat Politècnica de Catalunya, 2021-10-28)
Treball Final de Grau
Accés obertElectrical impedance spectroscopy (EIS) is a technique widely used to obtain electrical characteristics of a tissue or material, without the need to destroy the sample. Measurements can be made extracellularly or ... -
Experimental and theoretical study of nanofiltration of weak electrolytes: SO4 2–/HSO4 –/H+ system
(2018-03-15)
Article
Accés obert© 2018 Elsevier B.V. Over recent years, nanofiltration (NF) has been considered as an effective way to improve processing steps in metallurgical and hydrometallurgy applications dealing with mixtures of metal ions in ... -
Inkjet printing in polymer electrolyte membrane electrolysis
(Universitat Politècnica de Catalunya / University of Alberta, 2016)
Projecte Final de Màster Oficial
Accés obertIn proton exchange membrane fuel cells (PEFCs), the catalyst and electrolyte loading have been shown to have an important effect in the performance and efficiency of the device. On the contrary, literature analyzing ... -
Nanofiltration of multi-ion solutions: Quantitative control of concentration polarization and interpretation by solution-diffusion-electro-migration model
(Multidisciplinary Digital Publishing Institute (MDPI), 2021-04-01)
Article
Accés obertFor effective use of advanced engineering models of nanofiltration quality of experimental input is crucial, especially in electrolyte mixtures where simultaneous rejections of various ions may be very different. In ... -
Nanoporous copper ribbons prepared by chemical dealloying of a melt-spun ZnCu alloy
(American Chemical Society (ACS), 2021-12-29)
Article
Accés restringit per política de l'editorialDealloying is a powerful and versatile method to fabricate three-dimensional nanoporous (np) materials with high surface area. In this work, we investigated the dealloying processes of Zn80Cu20 alloy ribbons in acidic and ... -
Nonlinear observer for online concentration estimation in vanadium flow batteries based on half-cell voltage measurements
(Elsevier, 2024-06)
Article
Accés obertThis paper presents a nonlinear observer to estimate the active species concentrations in vanadium flow batteries. To conduct the estimation, the observer relies only on current, flow rate and two half-cell voltage ... -
Self-Diffusion, Phase Behavior, and Li+ Ion Conduction in Succinonitrile-Based Plastic Cocrystals
(2015-11-11)
Article
Accés obertWe study the temperature-dependent molecular dynamics, ion conduction, and phase behavior of plastic-crystal electrolytes based on the succinonitrile molecule. We employ calorimetry and dielectric spectroscopy to probe ... -
Solvation structure and dynamics of the dimethylammonium cation diluted in liquid water: a molecular dynamics approach
(American Institute of Physics (AIP), 2020-06-21)
Article
Accés obertClassical molecular dynamics simulation techniques were employed to investigate the local solvation structure and related dynamics of the dimethylammonium cation diluted in liquid water at ambient conditions. The translational ... -
Specific ion effects in aqueous eletrolyte solutions confined within graphene sheets at the nanometric scale
(2012-08-14)
Article
Accés restringit per política de l'editorialThe underlying mechanisms of specific ion effects on structure and dynamics of aqueous solutions have been long debated. On the other hand, the role of polarization at hydrophobic interfaces when aqueous electrolytes are ... -
The bridge functions of molten salts
(2001-09)
Article
Accés obertThe bridge functions of molten NaCl and AgI near melting were obtained by using the model potentials of Born–Huggins–Mayer for NaCl and Vashishta–Rahman for AgI. The calculations of the bridge functions involved molecular ... -
Universal ion-transport descriptors and classes of inorganic solid-state electrolytes
(Royal Society of Chemistry (RSC), 2023-02-09)
Article
Accés obertSolid-state electrolytes (SSEs) with high ion conductivity are pivotal for the development and large-scale adoption of green-energy conversion and storage technologies such as fuel cells, electrocatalysts and solid-state ... -
Use of nanoparticles to enhance polymer electrolytes
(Universitat Politècnica de Catalunya, 2021-10-27)
Treball Final de Grau
Accés restringit per acord de confidencialitat -
Vanadium redox flow batteries real-time State of Charge and State of Health estimation under electrolyte imbalance condition
(Elsevier, 2023-09-15)
Article
Accés obertThis paper presents a novel observer architecture capable to estimate online the concentrations of the four vanadium species present in a vanadium redox flow battery (VRFB). The proposed architecture comprises three main ... -
Vanadium redox flow battery capacity loss mitigation strategy based on a comprehensive analysis of electrolyte imbalance effects
(2024-02)
Article
Accés obertElectrolyte imbalance is the main cause of capacity loss in vanadium redox flow batteries. It has been widely reported that imbalance caused by vanadium crossover can be readily recovered by remixing the electrolytes, while ...