Green synthesis of low-silica CHA zeolite without organic structural directing agents, fluoride media and seeds
Sign Up to like & getrecommendations! Published in 2021 at "Microporous and Mesoporous Materials"
DOI: 10.1016/j.micromeso.2020.110618
Abstract: Abstract To spare the use of OSDA and fluorides, for the sake of reducing cost and environmental conservation, a green and efficient synthesis recipe of low-silica CHA zeolites has been demonstrated, without using seeds or… read more here.
Keywords: low silica; synthesis; cha; silica cha ... See more keywords
Pure silica CHA-type zeolite membranes for dry and humidified CO2/CH4 mixtures separation
Sign Up to like & getrecommendations! Published in 2018 at "Separation and Purification Technology"
DOI: 10.1016/j.seppur.2017.12.060
Abstract: Abstract Dense and thin pure silica CHA-type zeolite (Si-CHA) membranes have been synthesized on porous α-alumina supports and investigated for CO2 permeation and CO2/CH4 separation performance under dry and humidified conditions. Si-CHA membranes with ultra-high… read more here.
Keywords: silica cha; ch4; co2 ch4; pure silica ... See more keywords
Transcription-induced formation of paired Al sites in high-silica CHA-type zeolite framework using Al-rich amorphous aluminosilicate.
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DOI: 10.1039/d1cc05401e
Abstract: The paired Al species pre-formed in Al-rich amorphous aluminosilicates were transcribed into high-silica CHA-type zeolite frameworks under hydrothermal conditions, which offers a new approach to creating paired Al sites in zeolite frameworks. This Al-pair-rich CHA… read more here.
Keywords: zeolite; silica cha; cha; high silica ... See more keywords
Fluoride-free synthesis of high-silica CHA-type aluminosilicates by seed-assisted aging treatment for starting gel.
Sign Up to like & getrecommendations! Published in 2022 at "Chemical communications"
DOI: 10.1039/d2cc04032h
Abstract: High-silica CHA-type aluminosilicates (Si/Al molar ratio >100) were synthesized hydrothermally in the absence of fluoride media, where the seed-assisted aging treatment played an important role on the crystallization. These aluminosilicates showed a long catalytic lifetime… read more here.
Keywords: type aluminosilicates; high silica; silica cha; seed ... See more keywords