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Observing the Effects of Shaping on Gas Adsorption in Metal‐Organic Frameworks
Author(s) -
Chanut Nicolas,
Wiersum Andrew D.,
Lee UHwang,
Hwang Young Kyu,
Ragon Florence,
Chevreau Hubert,
Bourrelly Sandrine,
Kuchta Bogdan,
Chang JongSan,
Serre Christian,
Llewellyn Philip L.
Publication year - 2016
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201600410
Subject(s) - chemistry , adsorption , mesoporous material , chemical engineering , spheres , metal , metal organic framework , inorganic chemistry , catalysis , organic chemistry , physics , astronomy , engineering
A series of four micro‐ or mesoporous metal‐organic frameworks [UiO‐66(Zr), UiO‐66(Zr)_NH 2 , MIL‐100(Fe), MIL‐127(Fe)] were synthesized in powder form and pelletized in the form of spheres by using a polyvinyl‐based binder. The effect of pelletization on the adsorption of a series of gasses (N 2 , CO, CO 2 , CH 4 , C 2 H 6 , C 3 H 8 , C 3 H 6 , C 4 H 10 ) at 303 K was evidenced in the adsorption isotherms and the enthalpies of adsorption measured by using microcalorimetric analysis. As expected, uptakes of gas per gram of material were lower for the spheres than for the powder. However, taking into account the bulk density, this tendency was inverted, suggesting that the spherical materials are of distinct interest for gas‐based applications. Nevertheless, other effects including partial pore restriction and active site “protection” may equally be evidenced for some pelletized materials, suggesting that the polyvinyl binder may play a more complex role.