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Mostrando ítems 11-20 de 37
Artículo
Technological proposals for recycling industrial wastes for environmental applications
(MDPI, 2014)
A two-fold objective is proposed for this research: removing hazardous and unpleasant wastes and mitigating the emissions of green house gasses in the atmosphere. Thus, the first aim of this work is to identify, characterize ...
Artículo
Nanostructured sonogels
(Trans Tech Publications Ltd, 2009)
Acoustic cavitation effects in sol-gel liquid processing permits to obtain nanostructured materials, with size-dependent properties. The so-called "hot spots" produce very high temperatures and pressures which act as ...
Artículo
Reinforced silica-carbon nanotube monolithic aerogels synthesised by rapid controlled gelation
(Springer Nature, 2018)
This work introduces a new synthesis procedure for obtaining homogeneous silica hybrid aerogels with carbon nanotube contents up to 2.50 wt.%. The inclusion of nanotubes in the highly porous silica matrix was performed by ...
Artículo
Propiedades mecánicas de aerogeles híbridos de sílice
(Sociedad Espanola de Ceramica y Vidrio, 2005)
Se han obtenido aerogeles híbridos de sílice orgánico-inorgánico por aplicación de ultrasonidos de alta potencia en los precursores líquidos y posterior secado del gel húmedo en condiciones supercríticas en etanol. Las ...
Artículo
Modelos estructurales del empaquetamiento aleatorio de partículas esféricas de Tobermorita: una aproximación computacional sencilla
(Inst. de Ciencias de la Construccion Eduardo Torroja, 2010)
En este trabajo y con el objetivo de conjugar el punto de vista atomístico y coloidal, presentamos un método com- putacional Monte Carlo que reproduce el empaqueta- miento coloidal de nano-partículas esféricas cristalinas ...
Artículo
Removal of basic yellow cationic dye by an aqueous dispersion of Moroccan stevensite
(Elsevier, 2013)
The aim of this study was to investigate the adsorption of basic yellow, a cationic dye, from aqueous solution by natural stevensite, with 104m2/g of specific surface area. The kinetics and the effects of several experimental ...
Artículo
Recent insights into xerogel and aerogel mineral composites for CO 2 mineral sequestration
(Springer Nature, 2011)
Supercritically dried composites have already been analysed and proposed as carbon dioxide sequesters. However, the economical and energetic costs of the supercritical drying process had to be re-evaluated, and were ...
Artículo
Colloidal crystals and water: Perspectives on liquid–solid nanoscale phenomena in wet particulate media
(Elsevier BV, 2016)
Solid colloidal ensembles inherently contain water adsorbed from the ambient moisture. This water, confined in the porous network formed by the building submicron spheres, greatly affects the ensemble properties. Inversely, ...
Artículo
Mechanical characterization of sol-gel alumina-based ceramics with intragranular reinforcement of multiwalled carbon nanotubes
(Elsevier, 2020)
Multiwalled carbon nanotubes (MWCNTs) have been widely considered for mechanical reinforcement of ceramic matrix composites. Nevertheless, the efficiency of this reinforcement strategy is under debate due to fabrication ...
Artículo
Changes on the nanostructure of cementitius calcium silicate hydrates (C-S-H) induced by aqueous carbonation
(Kluwer Academic Publishers, 2012)
The nanostructure of the main binding phase of the hydrated cements, the calcium silicate hydrates (C-S-H), and their structural changes due to aqueous carbonation have been characterized using TEM, nitrogen physisorption, ...