Articles with "supercritical drying" as a keyword



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Constructing efficient polyimide(PI)/Ag aerogel photocatalyst by ethanol supercritical drying technique for hydrogen evolution

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Published in 2020 at "Applied Surface Science"

DOI: 10.1016/j.apsusc.2019.144187

Abstract: Abstract As one kind of promising photocatalyst, polyimide (PI) still suffers from poor light absorption, low charge transfer efficiency and small specific surface area. Herein, PI/Ag aerogel photocatalysts were designed by the sol-gel method and… read more here.

Keywords: polyimide; photocatalyst; supercritical drying; ethanol supercritical ... See more keywords
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Highly absorbent cellulose nanofibrils aerogels prepared by supercritical drying.

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Published in 2020 at "Carbohydrate polymers"

DOI: 10.1016/j.carbpol.2019.115560

Abstract: In this paper, strictly speaking aerogels of cellulose nanofibrils (CNFs) and TEMPO-oxidized CNFs (TO-CNFs) were obtained from an optimized supercritical drying processes and cryogels were prepared after freeze-drying. The cryogels and aerogels were characterized and… read more here.

Keywords: nanofibrils aerogels; supercritical drying; absorbent cellulose; highly absorbent ... See more keywords
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The relationship between the silica wet-gels relative optical transmittance at 500 nm and structural features of silica aerogels

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Published in 2017 at "Ceramics International"

DOI: 10.1016/j.ceramint.2017.04.112

Abstract: Abstract Aerogels are usually synthesized from supercritical drying of wet-gels. High quality aerogels are usually characterized with high specific surface area (measured by BET method here) and high degree of polymerization of silicate (characterized by… read more here.

Keywords: wet gels; quality; supercritical drying; relative optical ... See more keywords
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Synthesis and Characterization of High Surface Area Transparent SiOC Aerogels from Hybrid Silicon Alkoxide: A Comparison between Ambient Pressure and Supercritical Drying

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Published in 2022 at "Materials"

DOI: 10.3390/ma15041277

Abstract: In this article, highly porous and transparent silicon oxycarbide (SiOC) gels are synthesized from Bis(Triethoxysilyl) methane (BTEM). The gels are synthesized by the sol-gel technique followed by both ambient pressure and supercritical drying. Then, the… read more here.

Keywords: transparent; btem; pressure supercritical; high surface ... See more keywords
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NiO-Based Aerogels—Unexpected Formation of Metallic Nickel Nanoparticles during Supercritical Drying Process

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Published in 2022 at "Nanomaterials"

DOI: 10.3390/nano12224033

Abstract: The aim of the study is to investigate the influence of the solvents applied both in sol–gel process and for supercritical drying (SCD) on NiO aerogels’ properties. NiO aerogels were synthesized using methanol and 2-methoxy-ethanol… read more here.

Keywords: based aerogels; nio based; formation; supercritical drying ... See more keywords