Tolerance of Flexible MOFs toward Repeated Adsorption Stress

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

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.

Details

Original languageEnglish
Pages (from-to)22292-22300
Number of pages9
JournalACS Applied Materials and Interfaces
Volume7
Issue number40
Publication statusPublished - 14 Oct 2015
Peer-reviewedYes

Keywords

ASJC Scopus subject areas

Keywords

  • adsorption stress, DUT-8(Ni), ELM-11, flexible metal-organic frameworks, InfraSORP, MIL-53(Al), SNU-9