Orientated growth of copper-based MOF for acetylene storage

Wang, Zhanke and Ge, Lei and Li, Mengran and Lin, Rijia and Wang, Hao and Zhu, Zhonghua (2019) Orientated growth of copper-based MOF for acetylene storage. Chemical Engineering Journal, 357. pp. 320-327. ISSN 1385-8947


Manipulating crystal growth of metal-organic frameworks (MOFs) has great potential in achieving unique
properties for adsorption, separation and catalysis applications. For the first time, we used Mg/Al layered double hydroxide (LDH) nanosheets as modulators to tune the growth orientation of HKUST-1 without either pore
blockage or crystallinity degradation. Through the introduction of LDH during hydrothermal process, HKUST-1
crystal shape transfers from octahedron with fully exposed {1 1 1} facets to tetrakaidecahedron with both {1 0 0}
and {1 1 1} facets. The exposure of {1 0 0} facet with large pore size facilitates the activation of MOF, thereby
providing more open metal sites. As a result, the micropore volume and BET surface area increase remarkably
from 0.75 cm3/g to 1.01 cm3/g and 2255m2/g to 3001m2/g, respectively. The tetrakaidecahedral HKUST-1
exhibits high acetylene uptake of 275 cm3 (STP)/g at 298 K and 1 atm, which is the highest value ever reported
to the best of our knowledge.

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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Permanent restricted access to Published version, in accordance with the copyright policy of the publisher.
Faculty/School / Institute/Centre: Current - Institute for Advanced Engineering and Space Sciences - Centre for Future Materials
Date Deposited: 08 Oct 2018 23:44
Last Modified: 05 Apr 2019 02:06
Uncontrolled Keywords: metal-organic frameworks; orientated growth; crystal shape; layered double hydroxide; acetylene adsorption
Fields of Research : 03 Chemical Sciences > 0303 Macromolecular and Materials Chemistry > 030304 Physical Chemistry of Materials
09 Engineering > 0904 Chemical Engineering > 090404 Membrane and Separation Technologies
Socio-Economic Objective: D Environment > 96 Environment > 9602 Atmosphere and Weather > 960201 Atmospheric Composition (incl. Greenhouse Gas Inventory)
Identification Number or DOI: 10.1016/j.cej.2018.09.148
URI: http://eprints.usq.edu.au/id/eprint/34888

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