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Mostrando ítems 11-20 de 28
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
Environmental Impact of Phosphogypsum-Derived Building Materials
(2020)
The aim of the present work was to characterize the products obtained from the treatment of phosphogypsum residue by means of two recovery routes, and also to evaluate the concentrations of heavy metals and radionuclides ...
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
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
Hybrid aerogels and bioactive aerogels under uniaxial compression: an in situ saxs study
(2010)
The complex structure of hybrid organic/inorganic aerogels is composed by an inorganic phase covalently bonded to an organic chain forming a copolymer. Conventional hybrid aerogels were studied as well as bioactive hybrid ...
Artículo
Flue gas adsorption by single-wall carbon nanotubes: A Monte Carlo study
(American Institute of Physics Publising LLC, 2016)
Adsorption of flue gases by single-wall carbon nanotubes (SWCNT) has been studied by means of Monte Carlo simulations. The flue gas is modeled as a ternary mixture of N2, CO2, and O2, emulating realistic compositions of ...
Artículo
Absorption capacity, kinetics and mechanical behaviour in dry and wet states of hydrophobic DEDMS/TEOS-based silica aerogels
(Springer Nature, 2017)
This work is a new approach to the study of the structural, mechanical and absorption properties of hybrid organic/inorganic silica-based aerogels. Diethoxydimethylsilane and tetraethoxysilane have been used as precursors. ...