Shang, Jin Li, Gang Singh, Ranjeet Xiao, Penny Liu, Jefferson Z. Webley, Paul A. Potassium Chabazite: A Potential Nanocontainer for Gas Encapsulation Gas storage in a safe and economical way is an important aspect of modern life. This study reports on the behavior of the zeolite potassium chabazite (Si/Al = 2.2) as a nanocontainer to store N<sub>2</sub> and CH<sub>4</sub> by a “temperature” controlled nanovalve. We reveal the effect of extra-framework cation type and density on the adsorption characteristics by measuring a series of isotherms. Temperature programmed desorption (TPD) experiments are conducted to identify the working temperature for gas storage. The results show a N<sub>2</sub> storage capacity of 3.02 mmol/g if loaded above 266 K and 5 MPa and held below 223 K and at atmospheric pressure. For CH<sub>4</sub> storage, a more mild working temperature (i.e., above 279 K) is observed due to its larger molecular size than that of N<sub>2</sub>. Chabazite is a promising gas storage container because its features can be tailored to encapsulate a series of gases of different size by tuning its extra-framework cation type and density. 279 K;cation;results show;CH 4;Potential Nanocontainer;density;store N 2;TPD;series;type;Gas EncapsulationGas storage;gas storage;CH 4 storage;Potassium Chabazite;5 MPa;zeolite potassium chabazite;study reports;N 2 storage capacity;gas storage container;266 K;223 K;N 2. Chabazite;adsorption characteristics 2010-12-23
    https://acs.figshare.com/articles/media/Potassium_Chabazite_A_Potential_Nanocontainer_for_Gas_Encapsulation/2702800
10.1021/jp107456w.s002