Browsing by Subject "Catàlisi"
Now showing items 1-20 of 113
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1-Butanol absorption in poly(styrene-divinylbenzene) ion exchange resins for catalysis
(2015-01-01)
Article
Open AccessThe swelling behaviour of poly(styrene-co-divinylbenzene), P(S-DVB), ion exchange resins in 1-butanol (BuOH) has been studied by means of atomistic classical molecular dynamics simulations (MD). The topological characteristics ... -
3D Printed TiO2 / Pt photocatalyst for VOC elimination
(Universitat Politècnica de Catalunya, 2020-06)
Bachelor thesis
Open AccessFinding a way to clean the environment from the current pollution levels has become one of the most important matters throughout the past years. As it has been shown during the confinement due to Coronavirus, the moment ... -
3D Printing of alumina for catalysis applications
(Universitat Politècnica de Catalunya, 2023-02-13)
Master thesis
Open AccessAquest projete presenta un estudi detallat sobre l'ús de la técnica d’impressió “Direct Ink Writing” (DIW) per a la fabricació de monòlits d'alumina per a aplicacions de catalisis. L'objectiu principal d'aquesta investigació ... -
A CrMnFeCoNi high entropy alloy boosting oxygen evolution/reduction reactions and zinc-air battery performance
(Elsevier, 2023-04-01)
Article
Restricted access - publisher's policyThe development of cost-effective, high-activity and stable bifunctional catalysts for the oxygen reduction and evolution reactions (ORR/OER) is essential for zinc–air batteries (ZABs) to reach the market. Such catalysts ... -
A high conductivity 1D p–d conjugated metal–organic framework with efficient polysulfide trapping-diffusion-catalysis in lithium–sulfur batteries
(John Wiley & sons, 2022-03-10)
Article
Open AccessThe shuttling behavior and sluggish conversion kinetics of the intermediate lithium polysulfides (LiPS) represent the main obstructions to the practical application of lithium–sulfur batteries (LSBs). Herein, a 1D p–d ... -
A+B=0 reaction with different initial patterns
(American Chemical Society, 1996-10-10)
Article
Restricted access - publisher's policyWe present a detailed study of the chemical reaction A + B f 0 in two dimensions for different initial distributions of reactants as characterized by the structure function. We argue that the long-wavelength components ... -
Al2O3-supported Pt/Rh catalysts for NOx removal under lean conditions
(2019-07-05)
Article
Open AccessIn this work the reactivity of Pt-Rh NOx storage-reduction (NSR) catalysts in the reduction of NOx under lean conditions is investigated. It is found that significant amounts of NOx are stored on both Rh- and Pt-based ... -
Alcohols and bio-alcohols steam and autothermal reforming in a membrane reactor
(2014-11-28)
Part of book or chapter of book
Restricted access - publisher's policyConsiderable work has been reported concerning catalytic steam reforming, partial oxidation and oxidative steam reforming (autothermal reforming) aimed at hydrogen generation from alcohol-water mixtures. They include ... -
Ambient pressure photoemission spectroscopy reveals the mechanism of carbon soot oxidation in ceria-based catalysts
(2016-06-27)
Article
Open AccessRemoving soot is one of the most important challenges in minimizing the impact of combustion engines on the environment. Catalysts based on CeO2 have proved suitable to oxidize soot due to their capacity to store and release ... -
Bimetallic NiFe nanoparticles supported on CeO2 as catalysts for methane steam reforming
(American Chemical Society, 2023-05-12)
Article
Open AccessNi-Fe nanocatalysts supported on CeO2 have been prepared for the catalysis of methane steam reforming (MSR) aiming for coke-resistant noble metal-free catalysts. The catalysts have been synthesized by traditional incipient ... -
Bimetallic Ru–Pd supported on CeO2 for the catalytic partial oxidation of methane into syngas
(2023-02-15)
Article
Open AccessA series of monometallic Ru, Pd, and bimetallic Ru–Pd catalysts loaded on CeO2 support have been prepared via mechanochemical and conventional incipient wetness impregnation methods and used in the partial oxidation of ... -
Bio-nanohybrid catalysts based on L-leucine immobilized in hydrotalcite and their activity in aldol reaction
(2016-06-05)
Article
Open AccessNanohybrid materials based on L-leucine (L-Leu) and hydrotalcites (HT) were prepared by the ion exchange and reconstruction method, under mild synthesis conditions. The location, amount and the form of the immobilized L-Leu ... -
Bioactive films
(Universitat Politècnica de Catalunya, 2023-10-19)
Bachelor thesis
Open AccessAquest projecte de recerca explora el desenvolupament de pel·lícules biocatalítiques mitjançant una novel·la enfocament quimioenzimàtic i iniciat per la superfície. Els nostres resultats demostren que fins i tot en ... -
Breaking-down the catalyst used for the electrophotosynthesis of amino acids by nitrogen and carbon fixation
(2020-09-01)
Article
Open AccessThe electrophotocatalytic synthesis of Glycine and Alanine from a simple gas mixture containing N2, CO2, CH4 and H2O under mild reaction conditions (95 °C and 6 bar) was recently developed using a catalyst formed by ... -
Carbonaceous catalysts from orange pulp for limonene oxidation
(2019-01-01)
Article
Open AccessThe possibility of orange pulp utilization for nanoporous carbons production was investigated. Moreover, processing the obtained materials as limonene oxidation catalysts was studied as well. Limonene was separated from ... -
Catalytic ammonia decomposition over Ni-Ru supported on CeO2 for hydrogen production: Effect of metal loading and kinetic analysis
(Elsevier, 2021-06-05)
Article
Open AccessCeria-supported Ni-Ru bimetallic catalysts with different metal loadings have been prepared by co-impregnation, characterized and tested in the production of hydrogen from the catalytic decomposition of ammonia. The ... -
Catalytic decomposition of ammonia by a mechanochemical approach
(Universitat Politècnica de Catalunya, 2021-06-18)
Master thesis
Open AccessL’hidrogen sorgeix com a una de les millors opcions per conduir el canvi cap a una societat sense cap emissió, al 2050. Tot i això, l’emmagatzematge presenta certs problemes quan s’apliquen a aplicacions mòbils. Es suggereix ... -
Catalytic partial oxidation of methane over bimetallic Ru–Ni supported on CeO2 for syngas production
(Elsevier, 2024-01-02)
Article
Open AccessMethane (CH4) is the second most abundant greenhouse gas (GHG) after carbon dioxide (CO2) and is widely recognized as one of the most destructive GHGs, exerting negative impacts on the Earth's atmosphere. In order to ... -
Catalytic performance of bulk and Al2O3-supported molybdenum oxide for the production of biodiesel from oil with high free fatty acids content
(2020-02)
Article
Open AccessNon-edible vegetable oils are characterized by high contents of free fatty acids (FFAs) that prevent from using the conventional basic catalysts for the production of biodiesel. In this work, solid acid catalysts are used ... -
Catalytic performance of zinc-supported copper and nickel catalysts in the glycerol hydrogenolysis
(2020-03-01)
Article
Open AccessGas-phase catalytic conversion of glycerol to value added chemicals was investigated over zinc-supported copper and nickel catalysts. The addition of aluminum in the support was also investigated in glycerol conversion and ...
