TY - JOUR A1 - Kaluza, Stefan A1 - Schröter, Marie Katrin A1 - Naumann d'Alnoncourt, Raoul A1 - Reinecke, Thomas A1 - Muhler, Martin T1 - High Surface Area ZnO Nanoparticles via a Novel Continuous Precipitation Route JF - Advanced Functional Materials Y1 - 2008 U6 - https://doi.org/10.1002/adfm.200800457 SN - 1616-3028 N1 - The authors gratefully acknowledge fruitful discussions with Malte Behrens and Robert Schlögl, and financial support by the BMBF (Bundesministerium für Bildung und Forschung, project 01RI05028 “Entwicklung von Methanolsynthesekatalysatoren als Basis für nachhaltige Ressourcennutzung”). Supporting Information is available online from Wiley InterScience or from the author. VL - 18 IS - 22 SP - 3670 EP - 3677 ER - TY - JOUR A1 - Kaluza, Stefan A1 - Muhler, Martin T1 - On the Role of Aging, Washing, and Drying in the Synthesis of Polycrystalline Zinc Oxide by Precipitation: Combining Fast Continuous Mixing, Spray Drying and Freeze Drying to Unravel the Solid-State Transformations of the Precipitate JF - Catalysis Letters Y1 - 2009 UR - 1572-879X U6 - https://doi.org/10.1007/s10562-008-9818-5 N1 - The authors gratefully acknowledge fruitful discussions with Malte Behrens and Robert Schlögl, and the financial support by the BMBF (Bundesministerium für Bildung und Forschung) within the scope of the project 01RI05028 “Entwicklung von Methanolsynthesekatalysatoren als Basis für nachhaltige Ressourcennutzung” VL - 129 IS - 3-4 SP - 287 EP - 292 PB - Springer ER - TY - JOUR A1 - Kaluza, Stefan A1 - Muhler, Martin T1 - On the precipitation mechanism and the role of the post-precipitation steps during the synthesis of binary ZnO–Al2O3 composites with high specific surface area JF - Journal of Materials Chemistry KW - FBMV Y1 - 2009 U6 - https://doi.org/10.1039/b902004g SN - 1364-5501 VL - 19 IS - 23 SP - 3914 EP - 3922 PB - Royal Society of Chemistry (RSC) ER - TY - JOUR A1 - Kaluza, Stefan A1 - Behrens, Malte A1 - Schiefenhövel, Nora A1 - Kniep, Benjamin A1 - Fischer, Richard A1 - Schlögl, Robert A1 - Muhler, Martin T1 - A Novel Synthesis Route for Cu/ZnO/Al2O3 Catalysts used in Methanol Synthesis: Combining Continuous Consecutive Precipitation with Continuous Aging of the Precipitate JF - ChemCatChem Y1 - 2011 U6 - https://doi.org/10.1002/cctc.201000329 SN - 1867-3899 VL - 3 IS - 1 SP - 189 EP - 199 PB - Wiley ER - TY - JOUR A1 - Junge Puring, Kai A1 - Piontek, Stefan A1 - Smialkowski, Mathias A1 - Burfeind, Jens A1 - Kaluza, Stefan A1 - Doetsch, Christian A1 - Apfel, Ulf-Peter T1 - Simple Methods for the Preparation of Non-noble Metal Bulk-electrodes for Electrocatalytic Applications JF - Journal of visualized experiments : JoVE N2 - The rock material pentlandite with the composition Fe4.5Ni4.5S8 was synthesized via high temperature synthesis from the elements. The structure and composition of the material was characterized via powder X-ray diffraction (PXRD), Mössbauer spectroscopy (MB), scanning electron microscopy (SEM), differential scanning calorimetry (DSC) and energy dispersive X-ray spectroscopy (EDX). Two preparation methods of pentlandite bulk electrodes are presented. In the first approach a piece of synthetic pentlandite rock is directly contacted via a wire ferrule. The second approach utilizes pentlandite pellets, pressed from finely ground powder, which is immobilized in a Teflon casing. Both electrodes, whilst being prepared by an additive-free method, reveal high durability during electrocatalytic conversions in comparison to common drop-coating methods. We herein showcase the striking performance of such electrodes to accomplish the hydrogen evolution reaction (HER) and present a standardized method to evaluate the electrocatalytic performance by electrochemical and gas chromatographic methods. Furthermore, we report stability tests via potentiostatic methods at an overpotential of 0.6 V to explore the material limitations of the electrodes during electrolysis under industrial relevant conditions. Y1 - 2017 UR - http://www.ncbi.nlm.nih.gov/pubmed/28671654 U6 - https://doi.org/10.3791/56087 SN - 1940-087X IS - 124 PB - JoVE ER - TY - JOUR A1 - Heeskens, Denise A1 - Aghaei, Pedram A1 - Kaluza, Stefan A1 - Strunk, Jennifer A1 - Muhler, Martin T1 - Selective oxidation of ethanol in the liquid phase over Au/TiO 2 JF - physica status solidi (b) Y1 - 2013 U6 - https://doi.org/10.1002/pssb.201248440 SN - 1521-3951 VL - 250 IS - 6 SP - 1107 EP - 1118 PB - Wiley ER - TY - CHAP A1 - Hamel, Christian A1 - Kaluza, Stefan A1 - Unger, Christoph ED - Ernst, Stefan T1 - Catalytic tar reforming of biomass-derived synthesis gas: Influence of the catalyst, gas composition and sulfur poisoning T2 - Preprints of the DGMK-Conference "Synthesis Gas Chemistry",October 7 - 9, 2015, Dresden Y1 - 2015 SN - 978-3-941721-56-2 VL - DGMK Tagungsbericht, 2015,2 SP - 139 EP - 146 PB - DGMK CY - Hamburg ER - TY - JOUR A1 - Girod, Kai A1 - Breitkreuz, Klaas A1 - Gerstner, Andrea A1 - Marzi, Thomas A1 - Schulzke, Tim A1 - Kaluza, Stefan T1 - Close‐to‐Practice Investigations of Heterogeneously Catalyzed Syngas Conversions in Slurry and Fixed‐Bed Reactor Systems JF - Chemie Ingenieur Technik Y1 - 2018 U6 - https://doi.org/10.1002/cite.201700143 SN - 1522-2640 VL - 90 IS - 5 SP - 690 EP - 695 PB - Wiley ER - TY - JOUR A1 - Engeldahl, Barthel A1 - Özaslan, Mehtap A1 - Marschall, Roland A1 - Rose, Marcus A1 - Kaluza, Stefan A1 - Titus, Juliane A1 - Sprung, Christoph T1 - Weimar 2015: Catalysing Tomorrow’s Solutions JF - ChemCatChem Y1 - 2015 U6 - https://doi.org/10.1002/cctc.201500435 SN - 1867-3899 VL - 7 IS - 12 SP - 1794 EP - 1796 PB - Wiley ER - TY - JOUR A1 - Engel, Rebecca V. A1 - Kaluza, Stefan A1 - Oezaslan, Mehtap A1 - Peitz, Stephan T1 - German Catalysis Meeting - 50 Years and as Young as Ever JF - ChemCatChem Y1 - 2017 U6 - https://doi.org/10.1002/cctc.201700683 SN - 1867-3899 VL - 9 IS - 11 SP - 2018 EP - 2020 PB - Wiley ER -