Tolerance of Flexible MOFs toward Repeated Adsorption Stress

Volodymyr Bon; Negar Kavoosi; Irena Senkovska; Stefan Kaskel

doi:10.1021/acsami.5b05456

Tolerance of Flexible MOFs toward Repeated Adsorption Stress

ACS Appl Mater Interfaces. 2015 Oct 14;7(40):22292-300. doi: 10.1021/acsami.5b05456. Epub 2015 Oct 5.

Authors

Volodymyr Bon¹, Negar Kavoosi¹, Irena Senkovska¹, Stefan Kaskel¹

Affiliation

¹ Department of Inorganic Chemistry, Technische Universität Dresden , Bergstrasse 66, 01062 Dresden, Germany.

PMID: 26397165
DOI: 10.1021/acsami.5b05456

Abstract

The adsorption/desorption cyclability of four flexible MOFs, namely, MIL-53(Al), ELM-11, DUT-8(Ni), and SNU-9, was studied at 298 K using n-butane as adsorptive. The detailed analysis of thermal response curves, physisorption isotherm data, powder X-ray diffraction patterns, as well as SEM images revealed the highly stable switching performance of MIL-53(Al) and ELM-11 materials during 100 adsorption/desorption cycles. In contrast, for DUT-8(Ni) and SNU-9, the multiple adsorption/desorption stress leads to the reduction of crystallite size, causing changes in the switching behavior in the initial 10 physisorption runs, and a characteristic shift of the "gate-opening" pressure to higher values is observed.

Keywords: DUT-8(Ni); ELM-11; InfraSORP; MIL-53(Al); SNU-9; adsorption stress; flexible metal−organic frameworks.

Publication types

Research Support, Non-U.S. Gov't