Collaborative Research Center 1333
Molecular Heterogeneous Catalysis
in Confined Geometries
Metal-selective investigation of trimetallic systems using hard X-ray spectroscopy
Project C10 applies diverse XAS/XES and XRD protocols to establish a comprehensive reference library of homogeneous W/Mo-NHC, Rh-hydride and Cr-MIL systems, studied in solid state and solution. Static and Time-correlated ex-situ and in-situ spectroscopy (XAS/XES/HERFD-XANES, EXAFS, XRD) will then elucidate confinement effects, structure-reactivity relationships and reaction mechanisms in mono-, bi- and trimetallic Cr-MIL catalysts, resolving subtle changes at individual metal centers during the reaction cascade including ethylene oligomerization, -isomerization and -cross-metathesis.
Research focus in the second funding period (2022-2026):
Reaction mechanisms in confinement by advanced hard X-ray spectroscopy
In project C10 established and recent hard X-ray methods available at synchrotron radiation sources were developed and applied to study fundamental confinement effects in two dedicated cases: Cu- catalyzed CO2 hydrogenation and Cr-catalyzed oligomerization of ethylene.
Preliminary investigations took place within the service project S01 – X-Ray Spectroscopy from 2018-2022.
L. Rautenbach, M. Nandeshwar, E. Goldstein, M. Högler, M. Häußler, A. Allgaier, A. Bauer, D. Hornung, A. Beck, C. Franke, J. Osterbrink, J. R. Bruckner, J. Kästner, J. van Slageren, J. Pleiss, N. Hansen, M. R. Buchmeiser and R. Peters
ACS Catal 2026, 16, 11, 10371–10384.
S. Bhattacharya, M. Högler, J. R. Bruckner, B. Atwi, N. Hansen, F. R. Fischer, M. R. Buchmeiser
Catal. Sci. Technol. 2026, 16, 2170-2184.
A. Allgaier, F. Fischer, S. Bhattacharya, K. Balliet, M. R. Buchmeiser, M. Bauer, J. van Slageren
Inorg. Chem. 2026, accepted.
A. Rodríguez-Camargo, E. Yildiz, D. Juela, F. R. Fischer, D. Graf, B. B. Rath, Ch. Ochsenfeld, M. Bauer, M. Sitti, L. Yao and B. V. Lotsch
J. Am. Chem. Soc. 2025, 147, 37, 33472–33481.
P. Probst, M. Lindemann, J. R. Bruckner, B. Atwi, D. Wang, F. R. Fischer, M. Högler, M. Bauer, N. Hansen, M. Dyballa and M. R. Buchmeiser
J. Am. Chem. Soc. 2025, 147, 8741–8750.
M. Benz, O. Bunjaku, M. Nowakowski, A. Allgaier, I. Biswas, J. van Slageren, M. Bauer and D. P. Estes
Catal. Sci. Technol., 2024, 14, 5854-5863.
L.Fritsch, P. Rehsies, W. Barakat, D. P. Estes and M. Bauer
Chem. Eur. J.2024, e202400357.
F. Ziegler, J. R. Bruckner, M. Nowakowski, M. Bauer, P. Probst, B. Atwi, M. R. Buchmeiser
ChemCatChem, 2023,15 (21), e202300871.
M. Kirchhof, K. Gugeler, A.-K. Beurer, F. R. Fischer, D. Batman, S. M. Bauch, S. Kolin, E. Nicholas, R. Schoch, Ch. Vogler, S. R. Kousik, A. Zens, B. Plietker, P. Atanasova, S. Naumann, M. Bauer, J. R. Bruckner, Y. Traa, J. Kästner and Sabine Laschat
Catal. Sci. Technol., 2023, 13, 3709-3724.
© University Stuttgart 2026
