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09:35
Preparation of a Corannulene-functionalized Hexahelicene by Copper(I)-catalyzed Alkyne-azide Cycloaddition of Nonplanar Polyaromatic Units
Published on: September 18, 2016
Liquid phase separation of polyaromatics on [Cu2(BDC)2(dabco)]
Michael Maes1, Stijn Schouteden, Kenji Hirai
1Centre for Surface Chemistry and Catalysis, Katholieke Universiteit Leuven, Arenbergpark 23, B-3001 Leuven, Belgium.
Langmuir : the ACS Journal of Surfaces and Colloids
|June 24, 2011
Summary
This study shows a porous coordination polymer (PCP) can selectively adsorb methylnaphthalenes. This material enables the separation of specific polyaromatic compounds based on methyl group interactions.
Area of Science:
- Materials Science
- Chemical Engineering
- Separation Science
Background:
- Porous coordination polymers (PCPs) offer tunable structures for selective adsorption.
- Separating isomers like methylnaphthalenes is challenging in chemical processes.
Purpose of the Study:
- To investigate the adsorption capabilities of the PCP [Cu(2)(BDC)(2)(dabco)] for methylnaphthalenes.
- To evaluate the PCP's potential for separating specific polyaromatic hydrocarbon fractions.
Main Methods:
- Gas/vapor phase adsorption experiments were conducted using the synthesized PCP.
- Adsorption capacities and selectivity factors were determined for various polyaromatic hydrocarbons.
Main Results:
- The PCP selectively adsorbed up to 25 wt % of 1-methylnaphthalene and 2-methylnaphthalene.
- Significantly lower uptakes (7-13 wt %) were observed for naphthalene and 1,4-dimethylnaphthalene.
- High separation factors (up to 2.6) were achieved for the 1-methylnaphthalene/2-methylnaphthalene mixture.
Conclusions:
- The PCP [Cu(2)(BDC)(2)(dabco)] demonstrates high selectivity for monomethyl substituted polyaromatics.
- Specific interactions between the methyl group and the PCP lattice are crucial for adsorption selectivity.
- This PCP shows promise for separating valuable methylnaphthalene isomers from complex mixtures.
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