Exploració per tema "Platinum"
Ara es mostren els items 1-8 de 8
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Aplicación de dos técnicas de separación de Minerales del Grupo del Platino (EPD + HS y Superpanning) en muestras de cromitas y de placeres
(Universitat Politècnica de Catalunya, 2010-07-02)
Tesina
Accés obertEl superpanning (SP) y la hidroseparación (HS) son dos técnicas de separación de minerales del grupo del platino (MGP) que permiten concentrar estos minerales sin contaminar la muestra. La HS se suele usar en combinación ... -
Automated image analysis for single-atom detection in catalytic materials by transmission electron microscopy
(2022-03-25)
Article
Accés obertSingle-atom catalytic sites may have existed in all supported transition metal catalysts since their first application. Yet, interest in the design of single-atom heterogeneous catalysts (SACs) only really grew when advances ... -
Cation-exchange membrane as nanoreactor: intermatrix synthesis of platinum-copper core-shell nanoparticles
(2007-12)
Article
Accés restringit per política de l'editorialThe physical and chemical properties of metal nanoparticles (MNPs) are distinct from those of both bulk metal and isolated atoms. The main drawback of MNP is their instability and high trend for aggregation. Without ... -
Intermatrix synthesis of polymer-stabilized PGM@Cu core–shell nanoparticles with enhanced electrocatalytic properties
(2011-05-27)
Article
Accés restringit per política de l'editorialThis paper is dedicated to the further development of the Intermatrix synthesis (IMS) technique, which permits to produce a wide variety of polymer–metal nanocomposites (PMNCs) containing monometallic or bimetallic ... -
Photocatalytic hydrogen production from alcohol aqueous solutions over TiO2-activated carbon composites decorated with Au and Pt
(2022-03)
Article
Accés obertNanocomposites based on titanium dioxide loaded with metal nanoparticles (Au and Pt) and activated carbon were synthesized and tested for hydrogen photogeneration in the gas phase using a mixture of alcohol-water (methanol, ... -
Relevant parameters for the mechanochemical synthesis of bimetallic supported catalysts
(Multidisciplinary Digital Publishing Institute (MDPI), 2023-12-14)
Article
Accés obertMechanochemical synthesis for the preparation of bimetallic catalysts is gaining increasing interest, and in recent years, some important milestones have been reached. However, the complexity of mechanochemically prepared ... -
Room temperature oxidation of formaldehyde on Pt-based catalysts: A comparison between ceria and other supports (TiO2, Al2O3 and ZrO2)
(2015-09-15)
Article
Accés obertPlatinum-based catalysts for the room temperature removal of formaldehyde are prepared on ceria and other supports (TiO2, Al2O3 and ZrO2) for comparison, starting from chloride and nitrate precursors. The behaviour towards ... -
Structural evolution of bimetallic PtPd/CeO2 methane oxidation catalysts prepared by dry milling
(2021-06-02)
Article
Accés obertBimetallic Pt–Pd catalysts supported on ceria have been prepared by mechanochemical synthesis and tested for lean methane oxidation in dry and wet atmosphere. Results show that the addition of platinum has a negative effect ...