TY - JOUR

T1 - Water Vapor Adsorption on CAU-10- X

T2 - Effect of Functional Groups on Adsorption Equilibrium and Mechanisms

AU - Solovyeva, Marina V.

AU - Shkatulov, Alexandr I.

AU - Gordeeva, Larisa G.

AU - Fedorova, Elizaveta A.

AU - Krieger, Tamara A.

AU - Aristov, Yuri I.

N1 - Funding Information: This work was supported by the Russian Foundation of Basic Researches (Grant 18-29-04033) and budget project AAAA-A17-117041110045-9 for the Boreskov Institute of Catalysis. The authors are grateful to Dr. S.J.F. Erich for help with NMR measurements. Publisher Copyright: © 2021 American Chemical Society. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.

PY - 2021/1/19

Y1 - 2021/1/19

N2 - Metal-organic frameworks (MOFs) possess unique flexibility of structure and properties, which drives them toward applications as water adsorbents in many emerging technologies, such as adsorptive heat transformation, water harvesting from the air, dehumidification, and desalination. A deep understanding of the surface phenomena is a prerequisite for the target-oriented design of MOFs with the required adsorption properties. In this work, we comprehensively study the effect of functional groups on water adsorption on a series CAU-10-X substituted with both hydrophilic (X = NH2) and hydrophobic (X = NO2) groups in the linker. The adsorption equilibrium is measured at P = 7.6-42 mbar and T = 5-100 °C. The study of water adsorption by a set of mutually complementary physicochemical methods (TG, XRD in situ, FTIR, and 1H NMR relaxometry) elucidates the nature of primary adsorption sites and water adsorption mechanisms.

AB - Metal-organic frameworks (MOFs) possess unique flexibility of structure and properties, which drives them toward applications as water adsorbents in many emerging technologies, such as adsorptive heat transformation, water harvesting from the air, dehumidification, and desalination. A deep understanding of the surface phenomena is a prerequisite for the target-oriented design of MOFs with the required adsorption properties. In this work, we comprehensively study the effect of functional groups on water adsorption on a series CAU-10-X substituted with both hydrophilic (X = NH2) and hydrophobic (X = NO2) groups in the linker. The adsorption equilibrium is measured at P = 7.6-42 mbar and T = 5-100 °C. The study of water adsorption by a set of mutually complementary physicochemical methods (TG, XRD in situ, FTIR, and 1H NMR relaxometry) elucidates the nature of primary adsorption sites and water adsorption mechanisms.

UR - http://www.scopus.com/inward/record.url?scp=85100190703&partnerID=8YFLogxK

U2 - 10.1021/acs.langmuir.0c02729

DO - 10.1021/acs.langmuir.0c02729

M3 - Article

C2 - 33412006

AN - SCOPUS:85100190703

VL - 37

SP - 693

EP - 702

JO - Langmuir

JF - Langmuir

SN - 0743-7463

IS - 2

ER -