Nitridation of SiO2–B2O3 aerogels

Szaniawska, K.; Gładkowski, M.; Wicikowski, L.; Murawski, L.

doi:10.1016/j.jnoncrysol.2008.06.072

Cited by 8 publications

(2 citation statements)

References 3 publications

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“…Table 2 lists a series of different species that can be used to fabricate oxide gels and/or for usage in sol‐gel techniques that sometimes yield non‐gel products. [ 2,25–41 ] Some of these reactants are liquids at room temperature, some are solids, and some are dissolved (or suspended) in a secondary liquid, which is typically an alcohol (e.g., methanol, ethanol, isopropanol). The hydrolysis rates of metal alkoxides vary widely where some compounds are quite stable in air (e.g., TEOS) while others can hydrolyze readily in air [e.g., aluminum tri‐ sec ‐butoxide or Al(OBu s ) 3 , sodium ethoxide or NaOEt] and require storage and handling in an inert atmosphere such as a nitrogen glovebox.…”

Section: Synthesis Methodsmentioning

confidence: 99%

Environmental Remediation with Functional Aerogels and Xerogels

Riley

Chong

2020

Global Challenges

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Zn 2+). These sorbents have unique properties, which include high specific surface areas, high pore volumes, a range of pore sizes, and functionalities that provide methods for binding radionuclides and other contaminants, generally through physisorption, chemisorption, or a combination thereof. This combination of properties and functionalities makes these types of materials ideal for use as sorbents for capturing radionuclides. The primary base materials that will be discussed in this paper include Ag 0-functionalized silica aerogels, Ag +-impregnated aluminosilicate aerogels, Ag 0-functionalized aluminosilicate aerogels, metal-impregnated (non-Ag) aluminosilicate aerogels and xerogels, sulfide-based aerogels, and carbon-based aerogel composites. For the capture of I 2(g) , the materials reported herein show some of the highest iodine loadings ever reported for inorganic sorbents. For the capture of ionic species, these materials also show promise as next-generation materials for active radionuclide remediation. This progress report describes materials fabrication, general properties, and environmental remediation applications.

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Section: Synthesis Methodsmentioning

confidence: 99%

Environmental Remediation with Functional Aerogels and Xerogels

Riley

Chong

2020

Global Challenges

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“…In this range an overlap of asymmetric stretching of Si-O and B-O vibrations takes place. It has been turned out that the absorption band at 1000-1500 cm -1 is characteristic for triangular BO 3 units [17]. This indicates that boron ions in Na 2 O-B 2 O 3 -SiO 2 aerogel are three coordinated.…”

Section: Resultsmentioning

confidence: 99%

A Novel Building Thermal Insulation Material: Expanded Perlite Modified by Aerogel

Wang

Gao

et al. 2011

AMR

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Aerogel is regarded as one kind of super thermal insulation materials which could be large-scalely used as building materials. However, the aerogel’s production cost and poor mechanical property limit the its applications. In this paper, we put forward a new low cost way to produce a novel building thermal insulation material: synthesized the aerogel within the expanded perlite’s pores, and using sodium silicate as precursor without adopting supercritical fluid drying and surface modification. The thermal conductivity of expanded perlite was successfully decreased after modified by aerogel.

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