Results 31 to 40 of about 242,659 (303)

Tapered fibers embedded in silica aerogel [PDF]

open access: yesOptics Letters, 2009
We have embedded thin tapered fibers (with diameters down to 1 microm) in silica aerogel with low loss. The aerogel is rigid but behaves refractively like air, protecting the taper without disturbing light propagation along it. This enables a new class of fiber devices exploiting volume evanescent interactions with the aerogel itself or with dopants or
Xiao, L M   +6 more
openaire   +2 more sources

Comparative Study of Microwave-Assisted and Supercritical Drying for the Synthesis of Highly Porous Silica Aerogel: A Promising Adsorbent for Phenol Removal from Wastewater [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering
The removal of phenol from wastewater is crucial because of its harmful influences on human health, soil quality, and aquatic ecosystems. Among the different methods used for phenol removal, adsorption has gained popularity as an affordable and effective
Hamid Kazemi Hakki   +4 more
doaj   +1 more source

Recent Advances in Research on the Synthetic Fiber Based Silica Aerogel Nanocomposites

open access: yesNanomaterials, 2017
The presented paper contains a brief review on the synthesis and characterization of silica aerogels and its nanocomposites with nanofibers and fibers based on a literature study over the past twenty years and my own research.
Agnieszka Ślosarczyk
doaj   +1 more source

Eco-friendly approach for preparation of water-based superhydrophobic silica aerogels via ambient pressure drying

open access: yesMaterials Research Express, 2021
In this work, superhydrophobic methyltrimethoxysilane (MTMS)-based silica aerogels were fabricated via water-based sol–gel reaction by ambient pressure drying (APD) method in the presence of surfactant.
Xiaoling Yuan   +5 more
doaj   +1 more source

Nitrogen sorption as a tool for the characterisation of polysaccharide aerogels [PDF]

open access: yes, 2011
Supercritically dried aerogels of several polysaccharides (chitin, chitosan, alginate, alginic acid, k- carrageenan, and agar) have been characterised by physisorption ofN2. Surface areas as high as 570m2 g−1 have been measured.
Boissière, M.   +7 more
core   +3 more sources

Transparent thermal insulation silica aerogels

open access: yesNanoscale Advances, 2020
This review explores the synthesis and properties of transparent thermal insulation silica aerogels.
Jieyu Wang, Donald Petit, Shenqiang Ren
openaire   +3 more sources

Preparation of Silica Aerogel and Its Adsorption Performance to Organic Molecule

open access: yesAdvances in Materials Science and Engineering, 2014
Hydrophobic and lipophilic silica aerogel was prepared from water-glass by gelling, aging, silylation, and drying under atmospheric pressure and characterized by FT-IR and SEM.
Hong-xin Shi   +3 more
doaj   +1 more source

Using of aerogel to improve thermal insulating properties of windows [PDF]

open access: yes, 2018
For the best possible thermal-technical properties of building structures it is necessary to use materials with very low thermal conductivity. Due to the increasing thermal-technical requirements for building structures, the insulating materials are ...
Panovec, Vladan   +3 more
core   +1 more source

NMR measurements of hyperpolarized 3He gas diffusion in high porosity silica aerogels

open access: yes, 2005
Hyperpolarized 3He is used to nondestructively probe by NMR the structure of custom-made and commercial silica aerogels (97% and 98.5% porous). Large spin-echo signals are obtained at room temperature and very low magnetic field (2mT) even with small ...
Nacher, Pierre-Jean   +1 more
core   +3 more sources

Trombe walls with nanoporous aerogel insulation applied to UK housing refurbishments [PDF]

open access: yes, 2014
There is an opportunity to improve the efficiency of passive Trombe walls and active solar air collectors by replacing their conventional glass covers with lightweight polycarbonate panels filled with nanoporous aerogel insulation.
Ashby M.   +13 more
core   +2 more sources

Home - About - Disclaimer - Privacy