Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 7, Issue 40, Pages 22292-22300Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.5b05456
Keywords
flexible metal-organic frameworks; InfraSORP; adsorption stress; DUT-8(Ni); MIL-53(Al); ELM-11; SNU-9
Funding
- German Federal Ministry of Science and Education (BMBF) [05K13OD3]
- excellence initiative by the German federal and state government
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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.
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