Deposition of Metal-Organic Frameworks by Liquid-Phase Epitaxy: The Influence of Substrate Functional Group Density on Film Orientation

Materials

Jinxuan Liu²  Osama Shekhah¹  Xia Stammer²  Hasan K. Arslan²  Bo Liu³  Björn Schüpbach⁴  Andreas Terfort⁴ 

[1] Advanced Membranes & Porous Materials Center, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia; E-Mail:;Institute of Functional Interfaces, Karlsruhe Institute of Technology, Hermann-von-Helmholty-Platz 1, B 330, Eggenstein-Leopoldshafen D-76344, Germany; E-Mails:;Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, UK; E-Mail:;Institute of Inorganic and Analytical Chemistry, Goethe-University Frankfurt am Main, Frankfurt 60438, Germany; E-Mails:

关键词: HKUST-1;    SAMs;    MOF thin film;   

DOI  :  10.3390/ma5091581

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2012 by the authors; licensee MDPI, Basel, Switzerland.