Hydrogen Storage in a Potassium‐Ion‐Bound Metal–Organic Framework Incorporating Crown Ether Struts as Specific Cation Binding Sites | Zendy

Lim DaeWoon | Zendy; Chyun Seung An | Zendy; Suh Myunghyun Paik | Zendy

Premium

Hydrogen Storage in a Potassium‐Ion‐Bound Metal–Organic Framework Incorporating Crown Ether Struts as Specific Cation Binding Sites

Author(s) -

Lim DaeWoon,

Chyun Seung An,

Suh Myunghyun Paik

Publication year - 2014

Publication title -

angewandte chemie international edition

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 1433-7851

DOI - 10.1002/anie.201404265

Subject(s) - adsorption , moiety , hydrogen storage , chemistry , inorganic chemistry , sorption , crown ether , metal organic framework , metal , hydrogen , potassium , supercritical fluid , ether , metal ions in aqueous solution , binding energy , hydrogen bond , ion , crystallography , molecule , stereochemistry , organic chemistry , physics , nuclear physics

To develop a metal–organic framework (MOF) for hydrogen storage, SNU‐200 incorporating a 18‐crown‐6 ether moiety as a specific binding site for selected cations has been synthesized. SNU‐200 binds K + , NH 4 + , and methyl viologen(MV 2+ ) through single‐crystal to single‐crystal transformations. It exhibits characteristic gas‐sorption properties depending on the bound cation. SNU‐200 activated with supercritical CO 2 shows a higher isosteric heat ( Q st ) of H 2 adsorption (7.70 kJ mol −1 ) than other zinc‐based MOFs. Among the cation inclusions, K + is the best for enhancing the isosteric heat of the H 2 adsorption (9.92 kJ mol −1 ) as a result of the accessible open metal sites on the K + ion.

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here

Accelerating Research