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Issue 12, 2020
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Transparent thermal insulation silica aerogels

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Abstract

Silica aerogels have received much attention due to their unique nanoporous networks, which consist of nanoscale connective silica particles and high-volume nanoscale pores. This lightweight superinsulation solid materials are synthesized by a ‘sol–gel’ process involving precursor preparation, gelation, aging and drying. By controlling their synthesis and processing, silica aerogels demonstrate good thermal and acoustic insulation, mechanical strength and optical transparency. In recent years, incorporating transparent and thermal insulation silica aerogels in energy-saving windows is of great interest for both scientific and technological applications. This review introduces the basic principles of thermal and optical properties of silica aerogels and highlights their tunability via synthetic and processing control. In addition, the use of silica aerogels in transparent thermal insulation windows is discussed.

Graphical abstract: Transparent thermal insulation silica aerogels

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Article information


Submitted
08 Aug 2020
Accepted
31 Oct 2020
First published
31 Oct 2020

This article is Open Access

Nanoscale Adv., 2020,2, 5504-5515
Article type
Minireview

Transparent thermal insulation silica aerogels

J. Wang, D. Petit and S. Ren, Nanoscale Adv., 2020, 2, 5504
DOI: 10.1039/D0NA00655F

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