Mn-CUK-1: A Flexible MOF for SO 2 , H 2 O, and H 2 S Capture.

Autor: Dunning SG; Department of Chemistry, The University of Texas at Austin, Welch Hall 2.204, 105 CE. 24th St. Stop A5300, Austin Texas 78712-1224, United States., Gupta NK; Laboratorio de Fisicoquímica y Reactividad de Superficies (LaFReS), Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior s/n, CU, Coyocán, 04510 Ciudad de México, Mexico.; University of Science and Technology (UST), Daejeon 34113, Republic of Korea.; Department of Land, Water, and Environment Research, Korea Institute of Civil Engineering and Building Technology (KICT), Goyang 10223, Republic of Korea., Reynolds JE 3rd; Department of Chemistry, The University of Texas at Austin, Welch Hall 2.204, 105 CE. 24th St. Stop A5300, Austin Texas 78712-1224, United States.; Sandia National Laboratories, 7011 East Avenue, Livermore California 94550, United States., Sagastuy-Breña M; Laboratorio de Fisicoquímica y Reactividad de Superficies (LaFReS), Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior s/n, CU, Coyocán, 04510 Ciudad de México, Mexico., Flores JG; Laboratorio de Fisicoquímica y Reactividad de Superficies (LaFReS), Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior s/n, CU, Coyocán, 04510 Ciudad de México, Mexico., Martínez-Ahumada E; Laboratorio de Fisicoquímica y Reactividad de Superficies (LaFReS), Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior s/n, CU, Coyocán, 04510 Ciudad de México, Mexico., Sánchez-González E; Laboratorio de Fisicoquímica y Reactividad de Superficies (LaFReS), Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior s/n, CU, Coyocán, 04510 Ciudad de México, Mexico., Lynch VM; Laboratorio de Fisicoquímica y Reactividad de Superficies (LaFReS), Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior s/n, CU, Coyocán, 04510 Ciudad de México, Mexico., Gutiérrez-Alejandre A; UNICAT, Departamento de Ingeniería Química, Facultad de Química, Universidad Nacional Autónoma de México (UNAM), 04510 Ciudad de México, Mexico., Aguilar-Pliego J; Universidad Autónoma Metropolitana-Azcapotzalco, 02200 Ciudad de México, Mexico., Kim KS; University of Science and Technology (UST), Daejeon 34113, Republic of Korea.; Department of Land, Water, and Environment Research, Korea Institute of Civil Engineering and Building Technology (KICT), Goyang 10223, Republic of Korea., Ibarra IA; Laboratorio de Fisicoquímica y Reactividad de Superficies (LaFReS), Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior s/n, CU, Coyocán, 04510 Ciudad de México, Mexico., Humphrey SM; Department of Chemistry, The University of Texas at Austin, Welch Hall 2.204, 105 CE. 24th St. Stop A5300, Austin Texas 78712-1224, United States.
Jazyk: angličtina
Zdroj: Inorganic chemistry [Inorg Chem] 2022 Sep 26; Vol. 61 (38), pp. 15037-15044. Date of Electronic Publication: 2022 Sep 09.
DOI: 10.1021/acs.inorgchem.2c02012
Abstrakt: The environmentally benign metal-organic framework (MOF) CUK-1 based on 2,4-pyridine dicarboxylate has been prepared for the first time using Mn(II) as the inorganic node and water as the only solvent. Mn-CUK-1 shows reversible and efficient capture of H 2 O, SO 2 , and H 2 S. Compared to previously studied Co(II) and Mg(II) versions of the same MOF, Mn-CUK-1 also exhibited unique temperature-induced structural flexibility due to organic linker torsion, as detailed by variable-temperature single-crystal X-ray diffraction studies. Owing to this inherent solid-state flexibility, Mn-CUK-1 showed stepwise adsorption for polar gases, which induce structural deformations upon adsorption, while the nonpolar guest adsorbates were reversibly sorbed in a more classical manner. Notably, Mn-CUK-1 demonstrates the highest reported H 2 S capacity-to-surface area ratio among MOFs that are chemically stable toward this reactive acidic molecule. Moreover, Mn-CUK-1 displays exceptional structural stability in the presence of high relative humidity and corrosive gases and shows soft crystalline behavior triggered by changes in both the adsorption temperature and guest molecule identity.
Databáze: MEDLINE
Externí odkaz: