14 research outputs found

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    Séptimo desafío por la erradicación de la violencia contra las mujeres del Institut Universitari d’Estudis Feministes i de Gènere "Purificación Escribano" de la Universitat Jaume

    Characterization of polymer-derived ceramers subjected to wet-etching and the evolution of the carbon phase during thermal conversion

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    [Èn] The present work is focused on revealing the structural, textural and electrochemical characteristics of the carbon phases developed during the pyrolysis of commercial preceramic precursors in the presence of cobalt. At intermediate pyrolysis temperature, Cobalt is capable of forming labile carbides into the preceramic polymer network that, upon decomposition, lead to the formation of ordered carbonaceous structures during the thermal conversion. Etching with HF removes the undesirable SiO-like phase allowing, for the first time, to detect the presence of Co-carbon nano-onions (Co@CNO) in silicon oxycarbide ceramers. These ordered Co@CNO were formed at pyrolysis temperatures ranged between 700 and 800 °C but a further increase of the temperature induces a significant disorder into the carbon phase and incorporation of the C in the ceramic structure, as deduced from the spectroscopic characterization of these materials.A. Tamayo acknowledges the financial support from Fundacion General CSIC and the COMFUTURO program. This work was developed under the frame of the project MAT2016-78700-

    Bases per al Projecte I-II [m] Geometries habitables

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    Presentació de curs a càrrec de Daniel García-Escudero, professor coordinador de Bases per al Projecte I-II [m], i els docents que també imparteixen l'assignatur

    9SGP domestic

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    Conferència a càrrec de Daniel García-Escudero (Departament de Projectes Arquitectònics ETSAB | UPC), per l'assignatura Bases Projectes I-II [m], Q1 2022-2023

    Més enllà de les "Texas Houses"

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    Conferència a càrrec de Daniel García-Escudero (Departament de Projectes Arquitectònics ETSAB | UPC), professor coordinador de l'assignatura Bases per al Projecte I-II Matins
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