Results 51 to 60 of about 242,895 (228)

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

Porosity Engineering of MXene Architectures: Toward High‐Performance Aqueous Electrochemical Energy Storage

open access: yesAdvanced Materials, EarlyView.
This review systematically summarizes recent advances in porosity engineering of MXenes, with a focused discussion on their structure‐governed energy storage properties. A critical analysis of structure–property relationships is presented across alkali‐ion batteries, multivalent‐ion batteries, and supercapacitors.
Shude Liu   +8 more
wiley   +1 more source

Transparent silica aerogels for window insulation

open access: yesSolar Energy Materials, 1983
Abstract Supercritically drying a colloidal gel of silica produces a porous material called an aerogel. These aerogels not only are excellent thermal insulators, but also can be highly transparent. We investigate the microstructure and optical properties of transparent silica aerogels and calculate the energy transfer through hypothetical aerogel ...
Rubin, M., Lampert, C.M.
openaire   +2 more sources

Superfluid Phase Stability of $^3$He in Axially Anisotropic Aerogel [PDF]

open access: yes, 2008
Measurements of superfluid $^3$He in 98% aerogel demonstrate the existence of a metastable \emph{A}-like phase and a stable \emph{B}-like phase.
B Reddy   +11 more
core   +1 more source

Strong Lateral Confinement of Hydrophilic Silica Nanoparticles on Mg‐Al Layered Double Hydroxides Nanoflakes for Enhanced Thermal Properties

open access: yesAdvanced Materials Interfaces, EarlyView.
A nanostructured, naturally flame‐retardant, and non‐toxic inorganic composite is introduced, which is laterally associated with silica nanoparticles to induce the restacking of the LDH lamella structure, thereby serving as an efficient thermal insulator.
Gayani Pathiraja   +7 more
wiley   +1 more source

Thermal Gelation for Synthesis of Surface-Modified Silica Aerogel Powders

open access: yesGels, 2021
A spherical silica aerogel powder with hydrophobic surfaces displaying a water contact angle of 147° was synthesized from a water glass-in-hexane emulsion through ambient pressure drying. Water glass droplets containing acetic acid and ethyl alcohol were
Kyoung-Jin Lee   +3 more
doaj   +1 more source

Study on thermal conductivity of gas phase in nano-porous aerogel [PDF]

open access: yes, 2014
This paper was presented at the 4th Micro and Nano Flows Conference (MNF2014), which was held at University College, London, UK. The conference was organised by Brunel University and supported by the Italian Union of Thermofluiddynamics, IPEM, the ...
4th Micro and Nano Flows Conference (MNF2014)   +4 more
core  

Morphology‐Controlled Silica Nanoparticle Coatings for Transparent Radiative Cooling

open access: yesAdvanced Materials Interfaces, EarlyView.
Transparent radiative cooling coatings are achieved by immobilizing solid and hollow silica spheres on glass. Particle morphology within sub‐monolayer coatings is shown to govern the trade‐off between visible and atmospheric window reflectance. Hollow‐sphere structures enable reduced thermal emission losses while preserving transparency, highlighting ...
Jefferson A. S. Lam   +8 more
wiley   +1 more source

Experiments and numerical study on heat transfer of moist silica aerogel composites at high temperatures

open access: yesEnergy Storage and Saving
Silica aerogel composites have promising applications in high-temperature heat storage insulation. However, the impact of high temperatures and moisture on their insulation performance remains unclear.
Dong Li   +4 more
doaj   +1 more source

Effects of aerogel-like disorder on the critical behavior of O(m)-vector models. Recent simulations and experimental evidences [PDF]

open access: yes, 2006
We review some results on the effect of a specific type of quenched disorder on well known O(m)-vector models in three dimension. Evidences of changes of criticality in both systems, when confined in aerogel pores, are briefly referenced. The 3DXY model (
Paredes, Ricardo, Vasquez, Carlos
core   +3 more sources

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