B1 - Synthesis and Characterization of Metal Oxide Supports with Anisotropic Shape
Objective
Project B1 aims at the synthesis and characterization of metal oxide supports (CeO2, Al2O3, TiO2) with anisotropic shape. This includes materials with well-faceted crystal surfaces (e.g. tetrahedra, octahedra, cubes) and those with high surface area (nanoplates, nanorods, nanotubes, hollow nanospheres) as well as the thermal, structural and chemical stability of composite catalysts (i.e. metal oxide support with deposited Pt/Pd) under transient conditions. Electron microscopy and electron spectroscopy (e.g. electron energy loss spectroscopy, tomography, pair-distribution analysis) will be used to characterize the 2D/3D morphology, the local oxidation state and the metal-support interaction.
Project-related publications by participating researchers
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D. Bartenbach, O. Wenzel, R. Popescu, L.-P. Faden, A. Reiß, M. Kaiser, A. Zimina, J.-D. Grunwaldt, D. Gerthsen, C. Feldmann, Liquid-Phase Synthesis of Highly Reactive Rare-Earth Metal Nanoparticles. Angew. Chem. Int. Ed. 2021, 60, 17373-17377; |
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J. Hochstrasser, E. Juère, F. Kleitz, W. Wang, C. Kübel, U. Tallarek, Insights into the intraparticle morphology of dendritic mesoporous silica nanoparticles from electron tomographic reconstructions, J. Coll. Int. Sci. 2021, 592, 296-309; |
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X. Huang, D. Hlushkou, D. Wang, U. Tallarek, C. Kübel, Quantitative Analysis of Mesoporous Structures by Electron Tomography: A Phantom Study, Ultramicroscopy 2023, 243, 113639; |
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M. Liebertseder, D. Wang, G. Cavusoglu, M. Casapu, S. Wang, S. Behrens, C. Kübel, J.-D. Grunwaldt, C. Feldmann, NaCl-template-based Synthesis of TiO2-Pd/Pt Hollow-Nanosphere Catalyst for H2O2 Direct Synthesis and CO Oxidation. Nanoscale 2021, 13, 2005-2011; DOI: 10.1039/D0NR08871D |
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M. Liebertseder, C. B. Maliakkal, M. Crone, G. Nails, M. Casapu, J.-D. Grunwaldt, M. Türk, C. Kübel, C. Feldmann, TiO2-CeOx-Pt Hollow Nanosphere Catalyst for Low-Temperature CO Oxidation. Chem. Cat. Chem. 2023, online; |
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F. Maurer, A. Beck, J. Jelic, W. Wang, S. Mangold, M. Stehle, D. Wang, P. Dolcet, A. Gänzler, C. Kübel, F. Studt, M. Casapu, J.-D. Grunwaldt, Surface noble metal concentration on ceria as key descriptor for efficient catalytic CO oxidation, ACS Catal. 2022, 12, 2473–2486; |
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U. Tallarek, J. Hochstrasser, F. Ziegler, X. Huang, C. Kübel, M.R. Buchmeiser, Olefin ring-closing metathesis under spatial confinement: Morphology–transport relationships, ChemCatChem 2021, 13, 281-292; |
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L. Warmuth, G. Nails, M. Casapu, S. Wang, S. Behrens, J.-D. Grunwaldt, C. Feldmann, Catalytic CO Oxidation and H2O2 Direct Synthesis over Pd and Pt-Impregnated Titania Nanotubes. Catalysts 2021, 11, 949(1-11); |
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L. Warmuth, P. Lott, O. Deutschmann, C. Feldmann, MOx@VOx-Pd-type Nanorods and Nanotubes as Catalysts for Selective Reduction of NO. Chem. Cat. Chem. 2023, 15, e202201354(110); |
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S. Weber, R.T. Zimmermann, J. Bremer, K.L. Abel, D. Poppitz, N. Prinz, J. Ilsemann, S. Wendholt, Q. Yang, R. Pashminehazar, F. Monaco, P. Cloetens, X. Huang, C. Kübel, E. Kondratenko, M. Bauer, M. Bäumer, M. Zobel, R. Gläser, K. Sundmacher, T.L. Sheppard, Digitization in Catalysis Research: Towards a Holistic Description of a Ni/Al2O3 Reference Catalyst for CO2 Methanation, ChemCatChem 2022, e202101878; |