A series of four novel alkaline earth metal-organic frameworks constructed of Ca(II), Sr(II), Ba(II) ions and tetrahedral MTB linker: structural diversity, stability study and low/high-pressure gas adsorption properties
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F20%3A10415810" target="_blank" >RIV/00216208:11310/20:10415810 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=TWCg1SZU1i" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=TWCg1SZU1i</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/d0ra05145d" target="_blank" >10.1039/d0ra05145d</a>
Alternative languages
Result language
angličtina
Original language name
A series of four novel alkaline earth metal-organic frameworks constructed of Ca(II), Sr(II), Ba(II) ions and tetrahedral MTB linker: structural diversity, stability study and low/high-pressure gas adsorption properties
Original language description
A series of four novel microporous alkaline earth metal-organic frameworks (AE-MOFs) containing methanetetrabenzoate linker (MTB) with composition {[Ca(4)(μ(8)-MTB)(2)] . 2DMF . 4H2O}(n)(UPJS-6), {[Ca(4)(μ(4)-O)(μ(8)-MTB)(3/2)(H2O)(4)] . 4DMF . 4H2O}(n)(UPJS-7), {[Sr(3)(μ(7)-MTB)(3/2)] . 4DMF . 7H2O}(n)(UPJS-8) and {[Ba(3)(μ(7)-MTB)(3/2)(H2O)(6)] . 2DMF . 4H2O}(n)(UPJS-9) (UPJS = University of Pavol Jozef Safarik) have been successfully prepared and characterized. The framework stability and thermal robustness of prepared materials were investigated using thermogravimetric analysis (TGA) and high-energy powder X-ray diffraction (HE-PXRD). MOFs were tested as adsorbents for different gases at various pressures and temperatures. Nitrogen and argon adsorption showed that the activated samples have moderate BET surface areas: 103 m(2)g(-1)(N(2))/126 m(2)g(-1)(Ar) for UPJS-7'', 320 m(2)g(-1)(N(2))/358 m(2)g(-1)(Ar) for UPJS-9'' and UPJS-8'' adsorbs only a limited amount of N(2) and Ar. It should be noted that all prepared compounds adsorb carbon dioxide with storage capacities ranging from 3.9 to 2.4 wt% at 20 degrees C and 1 atm, and 16.4-13.5 wt% at 30 degrees C and 20 bar. Methane adsorption isotherms show no adsorption at low pressures and with increasing pressure the storage capacity increases to 4.0-2.9 wt% of CH(4) at 30 degrees C and 20 bar. Compounds displayed the highest hydrogen uptake of 3.7-1.8 wt% at -196 degrees C and 800 Torr among MTB containing MOFs.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10402 - Inorganic and nuclear chemistry
Result continuities
Project
<a href="/en/project/EF15_003%2F0000417" target="_blank" >EF15_003/0000417: Center for Advanced Materials: Design, Synthesis, and Applications</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
RSC Advances
ISSN
2046-2069
e-ISSN
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Volume of the periodical
10
Issue of the periodical within the volume
54
Country of publishing house
GB - UNITED KINGDOM
Number of pages
12
Pages from-to
32323-32334
UT code for WoS article
000567492100006
EID of the result in the Scopus database
2-s2.0-85090770758