Enhancing CO2 Adsorption and Separation Properties of Aluminophosphate Zeolites by Isomorphous Heteroatom Substitutions
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F18%3A10389557" target="_blank" >RIV/00216208:11310/18:10389557 - isvavai.cz</a>
Výsledek na webu
<a href="https://doi.org/10.1021/acsami.8b11235" target="_blank" >https://doi.org/10.1021/acsami.8b11235</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acsami.8b11235" target="_blank" >10.1021/acsami.8b11235</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Enhancing CO2 Adsorption and Separation Properties of Aluminophosphate Zeolites by Isomorphous Heteroatom Substitutions
Popis výsledku v původním jazyce
Mg, Co-substituted aluminophosphate zeolites with ERI framework topology (denoted as MgAPO-ERI and CoAPO-ERI) have been synthesized under hydrothermal conditions by using N,N,N',N'-tetramethyl-1,6-hexanediamine as organic template. Their CO2 adsorption properties are investigated in comparison to those of the pure aluminophosphate counterpart AlPO-ERI. CoAPO-ERI shows the highest CO2 uptake of 57.3 cm(3) g(-1) (273 K and 1 bar) and the highest isosteric heat of 39.0 kJ mol(-1) among the three samples. Importantly, the incorporation of Mg(2+) and Co(2+) ions in the framework of AlPO-ERI can greatly improve the adsorption selectivities of CO2 over CH4 and N-2. Whereafter, transient breakthrough simulations were investigated and further proved the advantages of heteroatoms for separations. These results demonstrate that isomorphous heteroatom substitutions in aluminophosphate zeolites play a key role in enhancing CO2 adsorption and separation abilities.
Název v anglickém jazyce
Enhancing CO2 Adsorption and Separation Properties of Aluminophosphate Zeolites by Isomorphous Heteroatom Substitutions
Popis výsledku anglicky
Mg, Co-substituted aluminophosphate zeolites with ERI framework topology (denoted as MgAPO-ERI and CoAPO-ERI) have been synthesized under hydrothermal conditions by using N,N,N',N'-tetramethyl-1,6-hexanediamine as organic template. Their CO2 adsorption properties are investigated in comparison to those of the pure aluminophosphate counterpart AlPO-ERI. CoAPO-ERI shows the highest CO2 uptake of 57.3 cm(3) g(-1) (273 K and 1 bar) and the highest isosteric heat of 39.0 kJ mol(-1) among the three samples. Importantly, the incorporation of Mg(2+) and Co(2+) ions in the framework of AlPO-ERI can greatly improve the adsorption selectivities of CO2 over CH4 and N-2. Whereafter, transient breakthrough simulations were investigated and further proved the advantages of heteroatoms for separations. These results demonstrate that isomorphous heteroatom substitutions in aluminophosphate zeolites play a key role in enhancing CO2 adsorption and separation abilities.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10403 - Physical chemistry
Návaznosti výsledku
Projekt
—
Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2018
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
ACS Applied Materials & Interfaces
ISSN
1944-8244
e-ISSN
—
Svazek periodika
10
Číslo periodika v rámci svazku
50
Stát vydavatele periodika
US - Spojené státy americké
Počet stran výsledku
8
Strana od-do
43570-43577
Kód UT WoS článku
000454383500030
EID výsledku v databázi Scopus
2-s2.0-85058552519