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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&apos;-bi-(1,10-dicarba-closo-decaborane)-10,10&apos;-dicarboxylic acid (H(2)Bcb10DC) and 1,1&apos;-bi-(1,12-dicarba-closo-decaborane)-12,12&apos;-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&apos; with altered structure has S-BET(N-2) of 1012 m(2) g(-1) and 4&apos; with mostly retained structure 920 m(2) g(-1). Gas adsorption by 3&apos; and 4&apos; 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&apos; with similar to 645 m(2) g(-1) (calc. 883 m(2) g(-1)) has the highest mass-specific H-2 adsorption, &gt; 30% than other compounds, while Q(st) is close to 1&apos; and slightly higher than for 3&apos; and 4&apos;. Adsorption of CO2 and CH4 and Q(st) are similar to 1.5-2 times lower for 3&apos; and 4&apos; compared to 1&apos; and 2&apos;. The surface area specific adsorption of H-2, CO2 and CH4 is the highest for 1&apos;. The CO2/CH4 LAST selectivities (0.15/0.85; 1 bar, 298 K) are in 2-4.5 range. 3&apos; and 4&apos; retain a significant part of porosity after soaking in water unlike 1&apos; and 2&apos;.

  • 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&apos;-bi-(1,10-dicarba-closo-decaborane)-10,10&apos;-dicarboxylic acid (H(2)Bcb10DC) and 1,1&apos;-bi-(1,12-dicarba-closo-decaborane)-12,12&apos;-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&apos; with altered structure has S-BET(N-2) of 1012 m(2) g(-1) and 4&apos; with mostly retained structure 920 m(2) g(-1). Gas adsorption by 3&apos; and 4&apos; 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&apos; with similar to 645 m(2) g(-1) (calc. 883 m(2) g(-1)) has the highest mass-specific H-2 adsorption, &gt; 30% than other compounds, while Q(st) is close to 1&apos; and slightly higher than for 3&apos; and 4&apos;. Adsorption of CO2 and CH4 and Q(st) are similar to 1.5-2 times lower for 3&apos; and 4&apos; compared to 1&apos; and 2&apos;. The surface area specific adsorption of H-2, CO2 and CH4 is the highest for 1&apos;. The CO2/CH4 LAST selectivities (0.15/0.85; 1 bar, 298 K) are in 2-4.5 range. 3&apos; and 4&apos; retain a significant part of porosity after soaking in water unlike 1&apos; and 2&apos;.

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