M. Sc. Werner Heinz
Joined the team in January 2017
Graduated at Technical University Munich (TUM) under the guidance of Dr. Sergei Vagin and Prof. Dr. Bernhard Rieger in 2016
Room No.: 4036
Phone: 089 289 54130
Research topic: Paddle-Wheel based 3D-connected Metal-Organic Frameworks – Defect Engineering and Metal Substitution
This PhD project focusses on precious-group metal (PGM)-based metal-organic frameworks (MOFs) of the archetypal HKUST-1 structure [M3(BTC)2]. Compared to their analogues of the 3d row, PGMs possess rather inert ligand substitution kinetics hampering the self-assembly towards ordered (crystalline) extended structures. As a consequence, PGM-MOFs have rather moderate crystallinity and pronounced defectiveness. Recent years have shown that, defects can have a significantly beneficial impact on material properties in the fields of catalysis and sorption.
Therefore, this project is targeted to find ways to manipulate and "engineer" the defective structure of PGM-MOFs (termed defect-engineering (DE)). Two main approaches are under investigation: a.) The de novo synthesis of DE-MOFs via the (truncated) mixed-linker approach and b.) a postsynthetic thermal defect-engineering of pristine PGM-MOF samples. Extensive material characterizations (SC- and P-XRD, gas sorption and pore size analysis, FT-IR, Raman, UV/VIS, NMR, elemental analysis, TGA, DFT calculations, TGA-MS, XPS, HR-TEM incl elemental mapping, EDS) allow in-depth comprehension to correlate structure-property relations towards several catalytic test reactions such as hydrogen transfer, ethylene dimerization, cyclopropanation reactions.
W. R. Heinz, I. Aguirrezabal-Telleria, R. Junk, J. Berger, J. Wang, D. I. Sharapa, M. Gil-Calvo, I. Luz, M. Soukri, F. Studt, Y. Wang, C. Wöll, H. Bunzen, M. Drees, R. A. Fischer ACS Appl. Mater. Interfaces 2020 ASAP (Thermal Defect-Engineering of Precious Group Metal-Organic Frameworks: A Case Study on Ru/Rh-HKUST-1 Analogues)
K. Epp, I. Luz, W. R. Heinz, A. Rapeyko, F. X. Llabrés i Xamena, R. A. Fischer ChemCatChem 2020, 12 (8), 1720-1725 (Defect-Engineered Ruthenium MOFs as Versatile Heterogeneous Hydrogenation Catalysts).
W. R. Heinz, T. Kratky, M. Drees, A. Wimmer, O. Tomanec, S. Günther, M. Schuster, R. A. Fischer, Dalton Trans., 2019, 48, 12031-12039. DOI: 10.1039/C9DT01198F (Mixed precious-group metal–organic frameworks: a case study of the HKUST-1 analogue[RuxRh3−x(BTC)2]).
S. Dissegna, K. Epp, W. R. Heinz, G. Kieslich, R. A. Fischer, Adv. Mater., 2018, 30, 1704501 (Defective Metal-Organic Frameworks).
C. Schwarzenböck, S. I. Vagin, W. R. Heinz, P. J. Nelson, B. Rieger Macromol. Rapid Commun., 2018, 39, 1800259. (Studies on the Biocompatibility of Poly(diethyl vinylphosphonate) with a New Fluorescent Marker)
S. Lane, S. Vagin, H. Wang, W. R. Heinz, W. Morrish, Y. Zhao, B. Rieger, A. Meldrum Light: Science & Applications, 2018, 7, 101. (Wide-gamut lasing from a single organic chromophore)
H. Wang, S. I. Vagin, S. Lane, W. Lin, V. Shyta, W. R. Heinz, C. Van Dyck, A. J. Bergren, K. Gardner, B. Rieger, A. Meldrum Chem. Mat., 2019 doi: 10.1021/acs.chemmater.9b01897 (Metal–Organic Framework with Color-Switching and Strongly Polarized Emission)