Fabrication and separation performance evaluation of a metal–organic framework based microseparator device

A microseparator device containing a metal–organic framework (MOF) as functional adsorbent coating was fabricated and tested. Microchannels were milled into PEEK covered copper sheets and a thin coating of Cu-BTC (copper-benzene-1,3,5-tricarboxylate) MOF was electrochemically synthesized on the expo...

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Vydáno v:Chemical engineering science Ročník 95; s. 65 - 72
Hlavní autoři: Van Assche, Tom R.C., Denayer, Joeri F.M.
Médium: Journal Article
Jazyk:angličtina
Vydáno: Elsevier Ltd 24.05.2013
Témata:
Adsorbents
Adsorption
Chemical engineering
Coating
Copper
Devices
Metal-organic frameworks
Metal–organic framework
methanol
Methyl alcohol
Microdevice
Microstructure
Packed bed
Polyetheretherketones
Rate constants
Separations
vapors
Metal–organic framework
Packed bed
Adsorption
Microstructure
Microdevice
Separations
ISSN:0009-2509, 1873-4405
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Shrnutí:A microseparator device containing a metal–organic framework (MOF) as functional adsorbent coating was fabricated and tested. Microchannels were milled into PEEK covered copper sheets and a thin coating of Cu-BTC (copper-benzene-1,3,5-tricarboxylate) MOF was electrochemically synthesized on the exposed copper surface. These microseparator sheets were stacked inside a holder employing the PEEK layer as a gasket. Methanol and n-hexane vapors were successfully separated on the microdevice in breakthrough experiments. The breakthrough profiles of the microseparator were modeled using a linear driving force model and their rate constants (KLDF) determined. A comparison to a packed bed was made. Sharp breakthrough profiles were found for the microseparator compared to the packed bed. [Display omitted] •Cu-BTC coated microchannels are fabricated using electrochemical synthesis.•PEEK layers serve a dual function as electrode mask and sealing gasket.•Methanol and n-hexane vapors are successfully separated.•Adsorption uptake rates of the microdevice are higher compared to a packed bed.
Bibliografie:http://dx.doi.org/10.1016/j.ces.2013.03.006
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ISSN:0009-2509
1873-4405
DOI:10.1016/j.ces.2013.03.006