Steffen Hausdorf
Freiberg University of Mining and Technology
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Publication
Featured researches published by Steffen Hausdorf.
Journal of Physical Chemistry A | 2008
Steffen Hausdorf; Jörg Wagler; Regina Moβig; Florian Mertens
The contributions of terephthalic acid and Zn(2+)-coordinated water in N,N-diethylformamide (DEF) to the overall proton activity in the synthesis of MOF-5 (Zn4O(BDC)3, BDC = 1,4-benzenedicarboxylate) were quantitatively determined by combined electrochemical and UV-vis spectroscopic measurements. Structural transformations of zinc carboxylate-based metal organic frameworks due to their exposure to environments with variable water concentrations and the chemical means necessary to revert these transitions have been investigated. It was found that the water-induced structural transition of MOF-5 to the hydroxide structure Zn3(OH)2(BDC)2 x 2 DEF (MOF-69c) can be reverted by a thermal treatment of the obtained compound and its subsequent exposure to anhydrous DEF. MOF-5 syntheses from simple carboxylates as well as a water-free synthesis based on nitrate decomposition are presented. The latter demonstrates that nitrate can serve as the sole source for the oxide ion in MOF-5.
Journal of the American Chemical Society | 2010
Steffen Hausdorf; Felix Baitalow; Tony Böhle; David Rafaja; Florian Mertens
A simple two-component procedure was developed to synthesize not only classical zinc-based IRMOFs represented by MOF-5 but also the cobalt and beryllium homologues of this most prominent MOF. The procedure is the first manifestation of mirroring the IRMOF series with other metal centers taken from main-group as well as transition-metal elements. Because of the existence of many suitable precursors, the procedure promises the generation of a large number of IRMOF homologues. Since the IRMOF series together with the MIL series is the MOF group with the largest number of representatives, the possibility of choosing the metal centers of the secondary building units from an extended set will tremendously expand the number of obtainable structures in a predictive, crystal-engineering-type way. Use of metal centers other than zinc will allow the addition of new features to the existing IRMOF structures, such as magnetic properties in the example of cobalt.
International Journal of Hydrogen Energy | 2008
Steffen Hausdorf; Felix Baitalow; G. Wolf; Florian Mertens
Journal of Physical Chemistry A | 2007
Steffen Hausdorf; Felix Baitalow; Jürgen Seidel; Florian Mertens
Microporous and Mesoporous Materials | 2012
Alexander S. Münch; Maria S. Lohse; Steffen Hausdorf; Gerhard Schreiber; Denise Zacher; Roland A. Fischer; Florian Mertens
Dalton Transactions | 2009
Steffen Hausdorf; Wilhelm Seichter; Edwin Weber; Florian Mertens
Archive | 2007
Gert Wolf; Felix Baitalow; Gerhard Roewer; Steffen Hausdorf; Gerd Arnold; Ulrich Eberle; Dieter Hasenauer; Florian Mertens
Archive | 2012
Steffen Hausdorf; Florian Mertens; Felix Baitalow; Jürgen Seidel; Roland Fischer
Archive | 2010
Steffen Hausdorf; Florian Mertens; Felix Baitalow; Jürgen Seidel; Roland Fischer
Archive | 2009
Steffen Hausdorf; Florian Mertens; Felix Baitalow; Jürgen Seidel