Improvement of Methane-Framework Interaction by Controlling Pore Size and Functionality of Pillared MOFs

Sayed Ali Akbar Razavi, Mohammad Yaser Masoomi, Timur Islamoglu, Ali Morsali, Yan Xu, Joseph T Hupp, Omar K. Farha, Jun Wang, Peter C. Junk

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

The rational design of functionalized porous metal-organic frameworks (MOFs) for gas adsorption applications has been applied using three spacer ligands H2DPT (3,6-di(pyridin-4-yl)-1,4-dihydro-1,2,4,5-tetrazine), DPT (3,6-di(pyridin-4-yl)-1,2,4,5-tetrazine), and BPDH (2,5-bis(4-pyridyl)-3,4-diaza-2,4-hexadiene) to synthesize TMU-34, [Zn(OBA)(H2DPT)0.5]n·DMF, TMU-34(-2H), [Zn(OBA)(DPT)0.5]n·DMF, and TMU-5, [Zn(OBA)(BPDH)0.5]n·1.5DMF, respectively. By controlling the pore size and chemical functionality of these three MOFs, we can improve the interactions between CO2 and especially CH4 with the frameworks. Calculated Qst(CH4) for TMU-5, TMU-34, and TMU-34(-2H) are 27, 23, and 22 kJ mol-1, respectively. These Qst values are among the highest for CH4-framework interactions. For systematic comparison, two reported frameworks, TMU-4 and TMU-5, have been compared with TMU-34 and TMU-34(-2H) in CO2 adsorption.

Original languageEnglish
Pages (from-to)2581-2588
Number of pages8
JournalInorganic Chemistry
Volume56
Issue number5
DOIs
Publication statusPublished - Mar 6 2017

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Methane
Pore size
methane
Metals
hexadiene
porosity
Gas adsorption
adsorption
metals
spacers
interactions
Ligands
Adsorption
ligands
gases

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry

Cite this

Improvement of Methane-Framework Interaction by Controlling Pore Size and Functionality of Pillared MOFs. / Razavi, Sayed Ali Akbar; Masoomi, Mohammad Yaser; Islamoglu, Timur; Morsali, Ali; Xu, Yan; Hupp, Joseph T; Farha, Omar K.; Wang, Jun; Junk, Peter C.

In: Inorganic Chemistry, Vol. 56, No. 5, 06.03.2017, p. 2581-2588.

Research output: Contribution to journalArticle

Razavi, SAA, Masoomi, MY, Islamoglu, T, Morsali, A, Xu, Y, Hupp, JT, Farha, OK, Wang, J & Junk, PC 2017, 'Improvement of Methane-Framework Interaction by Controlling Pore Size and Functionality of Pillared MOFs', Inorganic Chemistry, vol. 56, no. 5, pp. 2581-2588. https://doi.org/10.1021/acs.inorgchem.6b02758
Razavi, Sayed Ali Akbar ; Masoomi, Mohammad Yaser ; Islamoglu, Timur ; Morsali, Ali ; Xu, Yan ; Hupp, Joseph T ; Farha, Omar K. ; Wang, Jun ; Junk, Peter C. / Improvement of Methane-Framework Interaction by Controlling Pore Size and Functionality of Pillared MOFs. In: Inorganic Chemistry. 2017 ; Vol. 56, No. 5. pp. 2581-2588.
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AU - Morsali, Ali

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AU - Farha, Omar K.

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AB - The rational design of functionalized porous metal-organic frameworks (MOFs) for gas adsorption applications has been applied using three spacer ligands H2DPT (3,6-di(pyridin-4-yl)-1,4-dihydro-1,2,4,5-tetrazine), DPT (3,6-di(pyridin-4-yl)-1,2,4,5-tetrazine), and BPDH (2,5-bis(4-pyridyl)-3,4-diaza-2,4-hexadiene) to synthesize TMU-34, [Zn(OBA)(H2DPT)0.5]n·DMF, TMU-34(-2H), [Zn(OBA)(DPT)0.5]n·DMF, and TMU-5, [Zn(OBA)(BPDH)0.5]n·1.5DMF, respectively. By controlling the pore size and chemical functionality of these three MOFs, we can improve the interactions between CO2 and especially CH4 with the frameworks. Calculated Qst(CH4) for TMU-5, TMU-34, and TMU-34(-2H) are 27, 23, and 22 kJ mol-1, respectively. These Qst values are among the highest for CH4-framework interactions. For systematic comparison, two reported frameworks, TMU-4 and TMU-5, have been compared with TMU-34 and TMU-34(-2H) in CO2 adsorption.

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