Porous 10-and 12-vertex (bi)-p-dicarba-closo-boranedicarboxylates of cobalt and their gas adsorptive properties
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F18%3A39912587" target="_blank" >RIV/00216275:25310/18:39912587 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/68378271:_____/18:00498677
Výsledek na webu
<a href="http://dx.doi.org/10.1016/j.micromeso.2018.05.031" target="_blank" >http://dx.doi.org/10.1016/j.micromeso.2018.05.031</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.micromeso.2018.05.031" target="_blank" >10.1016/j.micromeso.2018.05.031</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Porous 10-and 12-vertex (bi)-p-dicarba-closo-boranedicarboxylates of cobalt and their gas adsorptive properties
Popis výsledku v původním jazyce
Two new porous coordination polymers, [Co-3(mu(3)-OH)(Bcb10DC)(2.5)(DEF)(3)(EtOH)(1.5)(H2O)(0.5)] center dot DEF center dot EtOH (3b) and [Co-2(Bcb12DC)(2)(DMF)(4)(EtOH)] center dot 2EtOH (4) based on 10- and 12-vertex p-bicarboranedicarboxylic acids, 1,1'-bi-(1,10-dicarba-closo-decaborane)-10,10'-dicarboxylic acid (H(2)Bcb10DC) and 1,1'-bi-(1,12-dicarba-closo-decaborane)-12,12'-dicarboxylic acid (H(2)Bcb12DC) were synthesized. Their properties were compared with the two known analogues based on shorter ligand-homologues, [Co(cb10DC)(DMF)] (1) and [Co-4(OH)(2)(cb12DC)(3)(DMF)(2)(H2O)(4)] center dot 3DMF center dot EtOH (2). The structure of 3b is based on a trinuclear cluster and has a 3D structure with a 5-c bnn underlying net, while 4 is based on a binuclear cluster and composed of stacked 2D sql layers. Activated 3' with altered structure has S-BET(N-2) of 1012 m(2) g(-1) and 4' with mostly retained structure 920 m(2) g(-1). Gas adsorption by 3' and 4' at 1 bar is: 80.1 cm(3) g(-1) (0.72%(wt)) and 81.3 cm(3) g(-1) (0.73%(wt)) H-2 at 77 K; 16.7 and 21.9 cm(3) g(-1) CO2 at 273 K; 6.2 and 10.0 cm(3) g(-1) of CH4 at 273 K. The isosteric heat of adsorption Q(st) at zero coverage are respectively: 5.0 and 4.5 kJ mol(-1) for H-2, 16.7 and 21.9 for CO2; 6.2 and 10.0 for CH4. 2' with similar to 645 m(2) g(-1) (calc. 883 m(2) g(-1)) has the highest mass-specific H-2 adsorption, > 30% than other compounds, while Q(st) is close to 1' and slightly higher than for 3' and 4'. Adsorption of CO2 and CH4 and Q(st) are similar to 1.5-2 times lower for 3' and 4' compared to 1' and 2'. The surface area specific adsorption of H-2, CO2 and CH4 is the highest for 1'. The CO2/CH4 LAST selectivities (0.15/0.85; 1 bar, 298 K) are in 2-4.5 range. 3' and 4' retain a significant part of porosity after soaking in water unlike 1' and 2'.
Název v anglickém jazyce
Porous 10-and 12-vertex (bi)-p-dicarba-closo-boranedicarboxylates of cobalt and their gas adsorptive properties
Popis výsledku anglicky
Two new porous coordination polymers, [Co-3(mu(3)-OH)(Bcb10DC)(2.5)(DEF)(3)(EtOH)(1.5)(H2O)(0.5)] center dot DEF center dot EtOH (3b) and [Co-2(Bcb12DC)(2)(DMF)(4)(EtOH)] center dot 2EtOH (4) based on 10- and 12-vertex p-bicarboranedicarboxylic acids, 1,1'-bi-(1,10-dicarba-closo-decaborane)-10,10'-dicarboxylic acid (H(2)Bcb10DC) and 1,1'-bi-(1,12-dicarba-closo-decaborane)-12,12'-dicarboxylic acid (H(2)Bcb12DC) were synthesized. Their properties were compared with the two known analogues based on shorter ligand-homologues, [Co(cb10DC)(DMF)] (1) and [Co-4(OH)(2)(cb12DC)(3)(DMF)(2)(H2O)(4)] center dot 3DMF center dot EtOH (2). The structure of 3b is based on a trinuclear cluster and has a 3D structure with a 5-c bnn underlying net, while 4 is based on a binuclear cluster and composed of stacked 2D sql layers. Activated 3' with altered structure has S-BET(N-2) of 1012 m(2) g(-1) and 4' with mostly retained structure 920 m(2) g(-1). Gas adsorption by 3' and 4' at 1 bar is: 80.1 cm(3) g(-1) (0.72%(wt)) and 81.3 cm(3) g(-1) (0.73%(wt)) H-2 at 77 K; 16.7 and 21.9 cm(3) g(-1) CO2 at 273 K; 6.2 and 10.0 cm(3) g(-1) of CH4 at 273 K. The isosteric heat of adsorption Q(st) at zero coverage are respectively: 5.0 and 4.5 kJ mol(-1) for H-2, 16.7 and 21.9 for CO2; 6.2 and 10.0 for CH4. 2' with similar to 645 m(2) g(-1) (calc. 883 m(2) g(-1)) has the highest mass-specific H-2 adsorption, > 30% than other compounds, while Q(st) is close to 1' and slightly higher than for 3' and 4'. Adsorption of CO2 and CH4 and Q(st) are similar to 1.5-2 times lower for 3' and 4' compared to 1' and 2'. The surface area specific adsorption of H-2, CO2 and CH4 is the highest for 1'. The CO2/CH4 LAST selectivities (0.15/0.85; 1 bar, 298 K) are in 2-4.5 range. 3' and 4' retain a significant part of porosity after soaking in water unlike 1' and 2'.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
20501 - Materials engineering
Návaznosti výsledku
Projekt
Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
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
Microporous and Mesoporous Materials
ISSN
1387-1811
e-ISSN
—
Svazek periodika
271
Číslo periodika v rámci svazku
November
Stát vydavatele periodika
NL - Nizozemsko
Počet stran výsledku
11
Strana od-do
284-294
Kód UT WoS článku
000442975100030
EID výsledku v databázi Scopus
2-s2.0-85048824111