Structural-failure resistance of metal-organic frameworks toward multiple-cycle CO2 sorption

Zhigang Hu; Yao Sun; Kaiyang Zeng; Dan Zhao

doi:10.1039/c7cc04313a

Structural-failure resistance of metal-organic frameworks toward multiple-cycle CO₂ sorption

Chem Commun (Camb). 2017 Aug 11;53(62):8653-8656. doi: 10.1039/c7cc04313a. Epub 2017 Jul 12.

Authors

Zhigang Hu¹, Yao Sun², Kaiyang Zeng², Dan Zhao¹

Affiliations

¹ Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585 Singapore. chezhao@nus.edu.sg.
² Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, 117576 Singapore. mpezk@nus.edu.sg.

PMID: 28702599
DOI: 10.1039/c7cc04313a

Abstract

We present the first study on the structural-failure of MOFs induced by multiple-cycle CO₂ adsorption and desorption, wherein UiO-66(Zr) demonstrates a much better resistance than HKUST-1 in 500-cycle CO₂ adsorption-desorption tests. This conclusion is supported by the higher elastic modulus of UiO-66(Zr) (ca. 28 GPa) and retention of elastic modulus (100%) than HKUST-1 (ca. 19 GPa, 64%) measured via multifrequency atomic force microscopy (MAFM).