Adsorption of water on three-dimensional pillared-layer metal organic frameworks |
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Authors: | Kondo Atsushi Daimaru Takamichi Noguchi Hiroshi Ohba Tomonori Kaneko Katsumi Kanoh Hirofumi |
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Institution: | Graduate School of Science and Technology, Chiba University, Yayoi, Inage, Chiba 263-8522, Japan. |
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Abstract: | We showed water adsorption isotherms at 303 K on water-resistant three-dimensional (3-D) pillared-layer metal organic frameworks (MOFs) with 1-D semi-rectangular pores, of which size depends on the length of ligand. The shapes of all three adsorption isotherms are type I by IUPAC classification showing strong water-MOFs interaction. The adsorbed amount of water molecules on the hydrophilic site of carboxylic group in 2-D sheets coincided with the crystal water amount. The adsorption on the hydrophilic sites occurs at similar relative pressure even if the used ligand is different. |
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