Browsing by Subject "Hidrogen"
Now showing items 21-40 of 127
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Colloidal Ni2-: XCoxP nanocrystals for the hydrogen evolution reaction
(Royal Society of Chemistry (RSC), 2018-05-11)
Article
Open AccessA cost-effective and scalable approach was developed to produce monodisperse Ni2-xCoxP nanocrystals (NCs) with composition tuned over the entire range (0 = x = 2). Ni2-xCoxP NCs were synthesized using low-cost, stable and ... -
Comparative sustainability study of energy storage technologies using data envelopment analysis
(Elsevier, 2022-06-28)
Article
Open AccessThe transition to energy systems with a high share of renewable energy depends on the availability of technologies that can connect the physical distances or bridge the time differences between the energy supply and demand ... -
Computer simulation study of ion-water and water-water hydrogen bonds in sulfuric acid solutions at low temperatures
(2022-02-01)
Article
Open AccessMolecular dynamics simulations of sulfuric acid solutions at several temperatures (230, 250, 273 and 298 K) and concentrations (10, 20, 30 and 40 wt%) have been carried out. The dissociation of the acid has been explicitly ... -
Desarrollo de nuevas vías de obtención de Hidrógeno en estado sólido
(Universitat Politècnica de Catalunya, 2019-07-08)
Bachelor thesis
Open AccessThe aim of this project was to activate Magnesium powders by ball milling and create a system to test hydrogen absorbance. Moreover, after literature review, FeTi compound was found to be a possible substitute for Magnesium ... -
Desenvolupament d'una eina d'anàlisis sobre un procés d'obtenció d'hidrogen a partir de metanol amb un equip CMR experimental
(Universitat Politècnica de Catalunya, 2023-07-03)
Bachelor thesis
Open AccessAquest projecte de final de grau té com a objectiu desenvolupar una eina d'anàlisi per al procés d'obtenció d'hidrogen a partir del reformat de metanol utilitzant un reactor de membrana catalítica (CMR) experimental dissenyat ... -
Design of a liquid organic hydrogen carrier (LOHC) reactor for X-ray absorption spectroscopy (XAS) analysis
(Universitat Politècnica de Catalunya, 2023-09)
Master thesis
Open Access -
Design of linear controllers applied to an ethanol steam reformer for PEN fuel cell applications
(2013-06-01)
Article
Restricted access - publisher's policyThis paper focuses on the design of a controller for a low temperature ethanol steam reformer for the production of hydrogen to feed a protonic exchange membrane (PEM) fuel cell. It describes different control structures ... -
Development of new materials for hydrogen storage
(Universitat Politècnica de Catalunya, 2020-02-14)
Master thesis
Open Access
Covenantee: Université de LorraineHydrogen could be one the most efficient source of energy in the future. The problem which is remaining about this energy is storage. Indeed, it is still very hard to store hydrogen due to the volume that it takes in its ... -
Dimensionament d’un sistema híbrid de producció d’hidrogen verd i electricitat
(Universitat Politècnica de Catalunya, 2023-07-07)
Bachelor thesis
Open AccessEl present document està dedicat al disseny i càlcul d’una instal·lació de generació d’hidrogen verd, la qual pretén substituir el gas natural consumit en el procés productiu d’una empresa industrial durant l’any 2022. ... -
Disseny d'una planta basada en electrolitzadors PEM i fotocatàlisi per a l'obtenció d'hidrogen a partir d'aigua
(Universitat Politècnica de Catalunya, 2022-07-19)
Bachelor thesis
Restricted access - author's decisionEn el present treball s’ha dissenyat una planta per produir hidrogen a partir d’aigua mitjançant un reactor híbrid format per tres electrolitzadors PEM en sèrie i un reactor fotocatalític. En el disseny, també s’ha inclòs ... -
Disseny d'una planta portàtil per l’obtenció de hidrogen a partir d’aigua
(Universitat Politècnica de Catalunya, 2022-07-13)
Bachelor thesis
Open AccessLa idea principal del projecte que es presenta en aquest treball es el disseny de una planta portàtil autònoma de obtenció d’hidrogen a partir d’aigua, amb subministre de energia verda en aquest cas energia solar, mitjançant ... -
Dynamic modelling of alkaline self-pressurized electrolyzers: a phenomenological-based semiphysical approach
(2020-01-01)
Article
Open AccessThis paper proposes a phenomenological based semiphysical model (PBSM) for a self-pressurized alkaline electrolyzer. The model, based on mass and energy balances, represents the dynamic behaviour of hydrogen and oxygen ... -
Dynamic photocatalytic hydrogen production from ethanol-water mixtures in an optical fiber honeycomb reactor loaded with Au/TiO2
(2014-01-01)
Article
Restricted access - publisher's policyCordierite honeycombs loaded with different amounts of Au/TiO2 have been used in an optical fiber photoreactor illuminated with UV LEDs to produce hydrogen from ethanol and water-ethanol mixtures. The photoreactions have ... -
Dynamic simulation of pure hydrogen production via ethanol steam reforming in a catalytic membrane reactor
(2016-12-15)
Article
Open AccessEthanol steam reforming (ESR) was performed over Pd-Rh/CeO2 catalyst in a catalytic membrane reactor (CMR) as a reformer unit for production of fuel cell grade pure hydrogen. Experiments were performed at 923 K, 6–10 bar, ... -
Effect of hydrogen addition to methane-air jet flame based on Sandia flame D
(Scipedia, 2022)
Conference report
Open AccessThe present study investigates the effect of hydrogen addition to methane-air jet flame based on Sandia flame D. For this purpose, RANS simulations with a global four-step mechanism were first compared with other reduced ... -
Effect of TiO 2 nanoshape on the photoproduction of hydrogen from water-ethanol mixtures over Au 3 Cu/TiO 2 prepared with preformed Au-Cu alloy nanoparticles
(2019-07-05)
Article
Open AccessA series of TiO2 nanoshapes (microurchins, nanobelts, nanowires, microrods and nanotubes) were prepared and decorated with preformed nanoparticles of Au-Cu alloy (Au:Cu¿=¿3:1 molar, 1¿wt.% metal content). The resulting ... -
Electrochemical wastewater treatment with simultaneous hydrogen production in textile industry
(Asociación Española de Ingeniería de Proyectos (AEIPRO), 2023)
Conference report
Open AccessThe textile industry is a major contributor to water consumption and greenhouse gas emissions, ranking 4th and 5th respectively in terms of impact in the EU. The process of major concern are the finishing operations, such ... -
Electrolyzer market deployment: policies and ancillary services
(Universitat Politècnica de Catalunya, 2024-09-11)
Master thesis
Open AccessHydrogen is gaining popularity due to its potential as a carbon-neutral energy carrier and its role in reducing Europe’s reliance on fossil fuels. Both the Intergovernmental Panel on Climate Change (IPCC) and the International ... -
Ens pot moure l’aigua?
(Universitat Politècnica de Catalunya, 2019-07-02)
Bachelor thesis
Open Access[CATALÀ] Aquest projecte tracta de la creació de la motocicleta del futur. Una motocicleta que funcioni amb hidrogen i gasolina. L’objectiu és poder-la crear a la realitat i que funcioni correctament. Partint d’una Derbi ... -
Estrategias de monitorización de la electrólisis de hidrógeno en electrolizadores PEM
(Publicacions de la Universitat Jaume I, 2023)
Conference lecture
Open Access