Results 1 to 10 of about 13,503 (229)

Passive Daytime Radiative Cooling of Silica Aerogels [PDF]

open access: yesNanomaterials, 2023
Silica aerogels are one of the most widely used aerogels, exhibiting excellent thermal insulation performance and ultralow density. However, owing to their plenitude of Si-O-Si bonds, they possess high infrared emissivity in the range of 8–13 µm and are ...
Bingjie Ma   +4 more
doaj   +2 more sources

Evolutionary Progress of Silica Aerogels and Their Classification Based on Composition: An Overview [PDF]

open access: yesNanomaterials, 2023
Aerogels are highly porous materials with fascinating properties prepared using sol-gel chemistry. Due to their unique physical and chemical properties, aerogels are recognized as potential candidates for diverse applications, including thermal ...
Puttavva Meti   +5 more
doaj   +2 more sources

Study on the Influence of the Preparation Method of Konjac Glucomannan-Silica Aerogels on the Microstructure, Thermal Insulation, and Flame-Retardant Properties [PDF]

open access: yesMolecules, 2023
Natural polysaccharides with high viscosity, good thermal stability, and biocompatibility can improve the mechanical properties of inorganic silica aerogels and enhance their application safety.
Ying Kuang   +10 more
doaj   +2 more sources

Solvent-regulable interfacial groups enable on-demand superhydrophobic/superhydrophilic silica aerogels [PDF]

open access: yesNature Communications
Silica aerogel, as the earliest synthetic and commercially available one among all known aerogels, holds significant value in fields including thermal and acoustic insulation, optics, catalysis, sorption, etc.
Lixiao Chen, Lishan Li, Xuetong Zhang
doaj   +2 more sources

Silica Aerogels in Nano Drug Delivery Systems: A Comprehensive Review from Preparation to Medical Applications [PDF]

open access: yesGels
Silica aerogel has garnered significant attention in the biomedical field, primarily due to its unique combination of a three-dimensional structure, low density, tunable nanoscale pores, and an extensive surface area. These intrinsic properties render it
Xinran Qian   +9 more
doaj   +2 more sources

The Synthesis and Spectroscopic Characterization of Structural Changes in Hydrophobic Silica Aerogels upon Encapsulation of the LCC ICCG Enzyme [PDF]

open access: yesGels
Silica aerogels are highly porous materials known for their low density and extensive surface area, making them ideal for applications in thermal insulation, catalysis, and environmental remediation.
Tatiana Alpízar-Rojas   +6 more
doaj   +2 more sources

One-Pot Sol–Gel Synthesis of Highly Insulative Hybrid P(AAm-CO-AAc)-Silica Aerogels with Improved Mechanical and Thermal Properties [PDF]

open access: yesGels, 2023
Silica aerogels and their derivatives have outstanding thermal properties with exceptional values in the thermal insulation industry. However, their brittle nature restricts their large-scale commercialization.
Akshay A. Ransing   +11 more
doaj   +2 more sources

Mechanically Reinforced Silica Aerogels via Thermally Induced Phase Separation of Poly(ethylene-co-vinyl Alcohol) [PDF]

open access: yesGels
Silica aerogels are highly attractive due to their outstanding properties, including their low density, ultralow thermal conductivity, large porosity, high optical transparency, and strong sorption activity.
Hainan Ma   +3 more
doaj   +2 more sources

Morphology control of nickel nanoparticles prepared in situ within silica aerogels produced by novel ambient pressure drying [PDF]

open access: yesScientific Reports, 2020
Silica aerogels are low density solids with high surface area and high porosity which are ideal supports for catalyst materials. The main challenge in aerogel production is the drying process, which must remove liquid from the pores of the wet gel while ...
Jialu Lu   +6 more
doaj   +2 more sources

The Influence of Reinforced Fibers and Opacifiers on the Effective Thermal Conductivity of Silica Aerogels [PDF]

open access: yesGels
Fiber–particle-reinforced silica aerogels are widely applied in thermal insulation. Knowing their effective thermal conductivity (ETC) and radiative characteristics under high temperatures is necessary to improve their performance.
Binghuan Huang   +4 more
doaj   +2 more sources

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