Deposition of metal-organic frameworks by liquid-phase epitaxy: The influence of substrate functional group density on film orientation

  • chair:

    Liu, J. / Shekhah, O. / Stammer, X. / Arslan, H. / Liu, B. / Schüpbach, B. / Terfort, A. / Wöll, C. (2012)
  • place:

     Materials 9 (2012), 5, 1581-1592
  • Date: 2012

  • Liu, J. / Shekhah, O. / Stammer, X. / Arslan, H. / Liu, B. / Schüpbach, B. / Terfort, A. / Wöll, C. (2012): „Deposition of metal-organic frameworks by liquid-phase epitaxy: The influence of substrate functional group density on film orientation“. In: Materials 9 (2012), 5, 1581-1592

Abstract

The liquid phase epitaxy (LPE) of the metal-organic framework (MOF) HKUST-1 has been studied for three different COOH-terminated templating organic surfaces prepared by the adsorption of self-assembled monolayers (SAMs) on gold substrates. Three different SAMs were used, mercaptohexadecanoic acid (MHDA), 4’-carboxyterphenyl-4-methanethiol (TPMTA) and 9-carboxy-10-(mercaptomethyl)triptycene (CMMT).

The XRD data demonstrate that highly oriented HKUST-1 SURMOFs with an orientation along the (100) direction was obtained on MHDA-SAMs. In the case of the TPMTA-SAM, the quality of the deposited SURMOF films was found to be substantially inferior. Surprisingly, for the CMMT-SAMs, a different growth direction was obtained; XRD data reveal the deposition of highly oriented HKUST-1 SURMOFs grown along the (111) direction.

 

 

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