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Keywords:

  • crystal growth;
  • metal–organic frameworks;
  • porous coordination polymers;
  • separation;
  • surface modification
Thumbnail image of graphical abstract

Crystal extractor: Heterostructured porous coordination polymer crystals fabricated using epitaxial growth have two contradictory porous functions, namely size selectivity and high storage. The crystals not only extract linear petroleum molecules from a mixture with its branched isomer, even at very low concentrations of linear isomer (1 wt %), but also shows improved accumulation of the molecules in its pores.