Exploració per tema "Materials magnètics"
Ara es mostren els items 1-12 de 12
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4-Mercaptophenyldiphenylphosphine as linker to immobilize Pd onto the surface of magnetite nanoparticles. Excellent catalytic efficiency of the system after partial linker removal
(2015-10-27)
Article
Accés obertThis journal is © The Royal Society of Chemistry. The molecule 4-mercaptophenyldiphenylphosphine (Sdp) has been synthesized for use as a linker to immobilize Pd nanoparticles onto the surface of magnetite nanoparticles. ... -
Banco experimental de ondas torsionales generadas bajo el principio de magnetostricción para la detección de defectos en estructuras cilíndricas
(Universitat Politècnica de Catalunya, 2018-06-26)
Treball Final de Grau
Accés obertDebido a las altas cargas que soportan las estructuras es probable que con el tiempo aparezcan grietas y, si no se controlan minuciosamente, se pueda llegar al colapso de la estructura. El colapso sin ... -
Cation distribution and high field magnetisation study of SrFe12-xCrxO19
(1984-09-10)
Article
Accés restringit per política de l'editorial -
From Au(i) organometallic hydrogels to well-defined Au(0) nanoparticles
(Royal Society of Chemistry, 2013)
Article
Accés restringit per política de l'editorialThe reaction of water soluble phosphine 3,7-diacetyl-1,3,7-triaza-5- phosphabicyclo[3.3.1]nonane (DAPTA) with [Au(CC-C5H 4N)]n yields a luminescent water soluble phosphine gold(i) alkynyl complex [Au(4-pyridylethynyl)(DAPTA)] ... -
Influència dels materials magnètics en diverses màquines elèctriques rotatives
(Universitat Politècnica de Catalunya, 2005-11)
Projecte/Treball Final de Carrera
Accés restringit per decisió de l'autorEl fenomen del magnetisme ha anat agafant protagonisme en el camp de les màquines elèctriques, ja que els materials magnètics aporten bones qualitats al seu funcionament. L’objectiu d’aquest treball és analitzar el ... -
Magnetic propulsion of recyclable catalytic nano-cleaners for pollutant degradation
(2017)
Article
Accés restringit per política de l'editorialElectrochemically fabricated magnetic mesoporous CoNi@Pt nanorods are excellent nanomotors with controlled magnetic propulsion and excellent catalytic properties. The core–shell structure allows a double functionality: (i) ... -
Magnetite-supported palladium single-atoms do not catalyse the hydrogenation of alkenes but small clusters do
(2016-01-01)
Article
Accés obertThe activity of supported noble metal catalysts strongly depends on the particle size. The ultimate small-size limit is the single-atom catalyst (SAC), which maximizes the catalytic efficiency in the majority of the examples. ... -
Martensitic transformation, thermal analysis and magnetocaloric properties of Ni-Mn-Sn-Pd alloys
(2020-12-01)
Article
Accés obertMartensitic transition and magnetic response of Ni50-x Pdx,y Mn36 Sn14-y (x = 0, 1, 2 and y = 0, 1) Heusler alloys were analysed. The crystalline structure of each composition was solved by X-ray diffraction pattern fitting. ... -
Modelling magnetostructural textures in magnetic shape-memory alloys: Strain and magnetic glass behaviour
(2014-10-01)
Article
Accés restringit per política de l'editorialIn this paper, we propose a model that combines a Landau free energy part and a micromagnetic free energy part aimed at describing a magnetostructural multiferroic. We show that in the limit of high-elastic anisotropy and ... -
Refredament magnètic: ordre i desordre d'imants atòmics
(2011)
Article
Accés obertS’ha comprovat que la refrigeració magnètica que utilitza un sistema magnètic és energèticament eficient i competitiva amb la tecnologia refrigerant basada en la compressió de gasos en el rang de temperatures proper a ... -
Spatially correlated disorder in self-organized precursor magnetic nanostructures
(2007-08-20)
Article
Accés restringit per política de l'editorialWe study the scaling behavior of the characteristic length of precursor magnetic nanostructures above the Curie temperature with the correlation length of quenched-in disorder. We found that the modulation length of the ... -
The JOREK non-linear extended MHD code and applications to large-scale instabilities and their control in magnetically confined fusion plasmas
(2021-06-01)
Article
Accés obertJOREK is a massively parallel fully implicit non-linear extended magneto-hydrodynamic (MHD) code for realistic tokamak X-point plasmas. It has become a widely used versatile simulation code for studying large-scale plasma ...