Functional silica aerogel from metastable lamellar composite

Guo, Yizhu; Guadalupe, Ana R.

doi:10.1039/a807762b

Cited by 10 publications

(4 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…According to [136] the interaction of the colloidal particles of silica in water in the presence of SDS when they have formed a sufficient amount of micelles changes from repulsion to mutual strong attraction. In [137] it was shown that after drying at room temperature such silica composites form three-dimensional porous structures.…”

Section: Optical Characteristics Of Silver Nanoparticles On the Surfamentioning

confidence: 99%

Silver and gold nanoparticles in silica matrices: synthesis, properties, and application

et al. 2010

View full text Add to dashboard Cite

Methods of synthesis, optical characteristics, morphology, and catalytic and bactericidal characteristics of composite materials based on silica (films and powders) containing nanoparticles of silver, gold, and their binary compounds with alloy or core-shell structure are examined. The photochemical reduction of Au 3+ and Ag + with a photocatalyst (a film of SiO 2 with adsorbed benzophenone) makes it possible to generate stable nanoparticles of gold and silver in solutions for subsequent introduction into adsorbents and catalysts. Examples of the use of nanosized composites in catalysis and in microbiological experiments are presented.

show abstract

Section: Optical Characteristics Of Silver Nanoparticles On the Surfamentioning

confidence: 99%

Silver and gold nanoparticles in silica matrices: synthesis, properties, and application

et al. 2010

View full text Add to dashboard Cite

show abstract

“…A highly desirable goal in aerogel preparation is the elimination of the supercritical drying process. For example, Guo and Guadalupe have succeeded in synthesizing a silica based aerogel from a metastable lamellar composite through cooperative interaction between silica and surfactant species [65]. The surfactant molecules used to generate pores can be removed from the silica network through conventional solvent extraction.…”

Section: Limitations Of Aerogelsmentioning

confidence: 99%

Aerogels as Promising Thermal Insulating Materials: An Overview

Thapliyal

Singh

2014

Journal of Materials

129

View full text Add to dashboard Cite

Aerogels are solids with high porosity (<100 nm) and hence possess extremely low density (∼0.003 g/cm3) and very low conductivity (∼10 mW/mK). In recent years, aerogels have attracted more and more attention due to their surprising properties and their existing and potential applications in wide range of technological areas. An overview of aerogels and their applications as the building envelope components and respective improvements from an energy efficiency perspective including performance is given here. This overview covers thermal insulation properties of aerogels and studies regarding structural features which will be helpful in buildings envelope. The improvements of thermal insulation systems have future prospects of large savings in primary energy consumption. It can be concluded that aerogels have great potential in a wide range of applications as energy efficient insulation, windows, acoustics, and so forth.

show abstract

“…For example, Guo and Guadalupe have succeeded in synthesizing a silica-based aerogel from a metastable lamellar composite through cooperative interaction between silica and surfactant species. 4 The surfactant molecules used to generate pores can be removed from the silica network through conventional solvent extraction. The porous structure is stable during this procedure, and no supercritical extraction is used.…”

mentioning

confidence: 99%