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

Prof. Dr.-Ing. habil. Roland Dittmeyer

R. Dittmeyer, T. Boeltken, P. Piermartini, M. Selinsek, M. Loewert, F. Dallmann, Micro and micro membrane reactors for advanced applications in chemical energy conversion. Curr. Opin. Chem. Eng. 2017, 17, 108-125

DOI: 10.1016/j.coche.2017.08.001

M. Siebert. R.R. Zimmermann, M. Armbrüster, R. Dittmeyer, Inkjet printing of GaPd2 into micro-channels for selective hydrogenation of acetylene. ChemCatChem, 2017, 9, 3733-3742

DOI: 10.1002/cctc.201700288

E. Hansjosten, A. Wenka, A. Hensel, W. Benzinger, M. Klumpp, R. Dittmeyer, Custom-designed 3D printed metallic fluid guiding elements for enhanced heat transfer at low pressure drop. Chem. Eng. Proc.: Process Intensif. 2018, 130, 119-126

DOI: 10.1016/j.cep.2018.05.022

F. Grinschek, D. Xie, M. Klumpp, M. Kraut, E. Hansjosten, R. Dittmeyer, Regular microstructured elements for intensification of gas−liquid contacting made by selective laser melting. Ind. Eng. Chem. Res. 2019, 59, 3736-3743

DOI: 10.1021/acs.iecr.9b04548

G. Baracchini, A.G.F. Machoke, M. Klumpp, R. Wen, P. Arnold, W. Schwieger, R. Dittmeyer, Structured catalysts for the direct synthesis of dimethyl ether from synthesis gas: a comparison of core@shell versus hybrid catalyst configuration. Catal. Today2020, 342, 46-58

DOI: 10.1016/j.cattod.2019.07.016

Prof. Dr.-Ing. Michael Türk

M. Türk, C. Erkey, Synthesis of supported nanoparticles in supercritical fluids by supercritical fluid reactive deposition: current state, further perspectives and needs. J. Supercrit. Fluids2018, 134, 176-183

DOI: 10.1016/j.supflu.2017.12.010

M. Türk, particle formation with supercritical fluids. Elsevier, Amsterdam, 2014

S. Müller, M. Türk, Production of supported gold and gold-silver nanoparticles by supercritical fluid reactive deposition: effect of substrate properties. J. Supercrit. Fluids2015, 96, 287-297

DOI: 10.1016/j.supflu.2014.09.035

M. Casapu, A. Fischer, A. Gänzler, R. Popescu, M. Crone, D. Gerthsen, M. Türk, J.-D. Grunwaldt, Origin of the normal and inverse hysteresis behavior during CO oxidation over Pt/Al2O3. ACS Catal. 2017, 7, 343-355

DOI: 10.1021/acscatal.6b02709

E. Ogel, M. Casapu, D. E. Doronkin, R. Popescu, H. Störmer, C. Mechler, G. Marzun, S. Barcikowski, M. Türk, J.-D. Grunwaldt, Impact of preparation method and hydrothermal aging on particle size distribution of Pt/γ-Al2O3 and its performance in CO and NO oxidation. J. Phys. Chem. C2019, 123, 5433-5446

DOI: 10.1021/acs.jpcc.8b11065