roland dittmeyer ∂does-not-exist.kit edu

C1 - Novel reactor and catalyst concepts via 3D-printing and supercritical fluid reactive deposition

Objective

This project investigates the synthesis and deposition of mono- and bimetallic PtPd nanoparticles by supercritical fluid reactive deposition on various types of monoliths washcoated with optimized catalyst supports. Advanced structured monoliths with complex flow geometries designed for efficient catalyst coating and fast mass transfer at low pressure drop by will be developed based on simulation linked to digital fabrication via powder-bed metal 3D printing. The resulting new catalytic converters will be benchmarked against established catalytic honeycomb converters equipped with the same support materials and catalysts, and structure-property relationships will be established.

Project-related publications by participating researchers

Project- and subject-related list of publications
M. Crone, M. Türk, Thermodynamics of adsorption of carbon dioxide on different metal oxides at temperatures from 313 to 353 K and pressures up to 25 MPa. J. Supercrit. Fluids 2022, 182, 105461. DOI: 10.1016/j.supflu.2021.105461
M. Crone, M. Türk, Adsorption of Precursors on Substrates in the Presence of scCO₂ for the Synthesis of Supported Metallic Nanoparticles: Experiments and Modeling. Fluids 2023, 8 (4), 121. DOI: 10.3390/fluids8040121
F. Grinschek, A. Charles, A. Elkaseer, C. Klahn, S. G. Scholz, R. Dittmeyer, Gas-tight means zero defects-design considerations for thin-walled fluidic devices with overhangs by laser powder bed fusion. Materials and Design, 2022, 223, 111174. DOI: 10.1016/j.matdes.2022.111174
M. Liebertseder, C.B. Maliakkal, M. Crone, G. Nails, M. Casapu, J.-D. Grunwaldt, M. Türk, C. Kübel, C. Feldmann, TiO₂‐CeO_x‐Pt Hollow Nanosphere Catalyst for Low‐Temperature CO Oxidation. Chem. Cat. Chem. 2023, DOI: 10.1002/cctc.202301358
F. Mehdipour, T. Delrieux, F. Maurer, J.-D. Grunwaldt, C. Klahn, R. Dittmeyer, R. Opportunities and limitations of metal additive manufacturing of structured catalytic converters. Catal. Commun., 2024, DOI: 10.1016/j.catcom.2024.106873
P.F. Siril, M. Türk, Synthesis of Metal Nanostructures Using Supercritical Carbon Dioxide: A Green and Upscalable Process. Small 2020, 16 (49), 2001972, DOI: 10.1002/smll.202001972
L.L. Trinkies, M. Crone, M. Türk, M. Kraut, R. Dittmeyer, Supercritical deposition of mono- and bimetallic Pd and Pt on TiO₂ coated additively manufactured substrates for the application in the direct synthesis of hydrogen peroxide. Chem. Eng. Process 2024, 109618. DOI: 10.1016/j.cep.2023.109618

Project- and subject-related list of publications

M. Crone, M. Türk, Thermodynamics of adsorption of carbon dioxide on different metal oxides at temperatures from 313 to 353 K and pressures up to 25 MPa. J. Supercrit. Fluids 2022, 182, 105461.

DOI: 10.1016/j.supflu.2021.105461

M. Crone, M. Türk, Adsorption of Precursors on Substrates in the Presence of scCO₂ for the Synthesis of Supported Metallic Nanoparticles: Experiments and Modeling. Fluids 2023, 8 (4), 121.

DOI: 10.3390/fluids8040121

F. Grinschek, A. Charles, A. Elkaseer, C. Klahn, S. G. Scholz, R. Dittmeyer, Gas-tight means zero defects-design considerations for thin-walled fluidic devices with overhangs by laser powder bed fusion. Materials and Design, 2022, 223, 111174.

DOI: 10.1016/j.matdes.2022.111174

M. Liebertseder, C.B. Maliakkal, M. Crone, G. Nails, M. Casapu, J.-D. Grunwaldt, M. Türk, C. Kübel, C. Feldmann, TiO₂‐CeO_x‐Pt Hollow Nanosphere Catalyst for Low‐Temperature CO Oxidation. Chem. Cat. Chem. 2023,

DOI: 10.1002/cctc.202301358

F. Mehdipour, T. Delrieux, F. Maurer, J.-D. Grunwaldt, C. Klahn, R. Dittmeyer, R. Opportunities and limitations of metal additive manufacturing of structured catalytic converters. Catal. Commun., 2024,

DOI: 10.1016/j.catcom.2024.106873

P.F. Siril, M. Türk, Synthesis of Metal Nanostructures Using Supercritical Carbon Dioxide: A Green and Upscalable Process. Small 2020, 16 (49), 2001972,

DOI: 10.1002/smll.202001972

L.L. Trinkies, M. Crone, M. Türk, M. Kraut, R. Dittmeyer, Supercritical deposition of mono- and bimetallic Pd and Pt on TiO₂ coated additively manufactured substrates for the application in the direct synthesis of hydrogen peroxide. Chem. Eng. Process 2024, 109618.

DOI: 10.1016/j.cep.2023.109618

Project Area C - Catalytic reactors