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Issue 5, 2016
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Impact of chabazite SSZ-13 textural properties and chemical composition on CO2 adsorption applications

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Abstract

Chabazite SSZ-13 samples with varying silica content (Si/Al from 5 to ∼20) were synthesized under both stirring and static conditions to obtain materials with changing particle size and morphology and thoroughly analysed using various characterization techniques. The role of particle size and chemical compositions in CO2 and N2 adsorption measurements was investigated. The Si/Al ratio played a major role in CO2 adsorption; Al-rich SSZ-13 demonstrated a higher CO2 uptake than an Al-poor material. This was attributed to the high density of active charged species in the chabazite cage. The particle size also played a role in the sorption capacities; smaller particles, obtained under stirring conditions, showed enhanced CO2 uptake compared to larger particles of similar chemical composition. This was associated with a higher contribution of micropores containing active sites for CO2 adsorption.

Graphical abstract: Impact of chabazite SSZ-13 textural properties and chemical composition on CO2 adsorption applications

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Supplementary files

Article information


Submitted
14 Nov 2015
Accepted
21 Mar 2016
First published
01 Apr 2016

New J. Chem., 2016,40, 4375-4385
Article type
Paper
Author version available

Impact of chabazite SSZ-13 textural properties and chemical composition on CO2 adsorption applications

S. Prodinger, R. S. Vemuri, T. Varga, B. Peter McGrail, R. K. Motkuri and M. A. Derewinski, New J. Chem., 2016, 40, 4375
DOI: 10.1039/C5NJ03205A

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