TY - GEN A1 - Walter, Reni A1 - Klepel, Olaf A1 - Erler, Thomas A1 - Bron, Michael A1 - Niebrzydowska, Paula A1 - Wach, Anna A1 - Kuśtrowski, Piotr T1 - First steps on the way to a modular concept for the preparation of carbon based catalysts T2 - Catalysis Letters Y1 - 2013 SN - 1572-879X VL - 143 IS - 7 SP - 642 EP - 650 ER - TY - GEN A1 - Utgenannt, Stephan A1 - Hansen, Felix A1 - Klepel, Olaf A1 - Jarczewski, Sebastian A1 - Wach, Anna A1 - Kuśtrowski, Piotr T1 - Control of porosity and composition of carbon based catalysts prepared by template assisted routes T2 - Catalysis Today KW - Heterogeneous catalysis Y1 - 2015 U6 - https://doi.org/10.1016/j.cattod.2014.10.036 SN - 0920-5861 VL - Vol. 249 SP - 38 EP - 44 ER - TY - CHAP A1 - Klepel, Olaf A1 - Walter, Reni A1 - Günther, David A1 - Niebrzydowska, Paula A1 - Wach, Anna A1 - Kuśtrowski, Piotr T1 - Carbon materials prepared by template assisted routes as catalysts for oxidative dehydrogenation of ethylbenzene T2 - 5th International Sypmosium on “Carbon on Catalysis”, Books of abstracts, Bressanone/Brixen, 2012 Y1 - 2012 SP - S. 92 ER - TY - CHAP A1 - Utgenannt, Stephan A1 - Hansen, Felix A1 - Klepel, Olaf A1 - Jarczewski, Sebastian A1 - Wach, Anna A1 - Kustrowski, Piotr A1 - Erler, Thomas A1 - Bron, Michael T1 - A modular concept for the preparation of carbon based catalysts T2 - Carbon 2015 : innovation with carbon materials; the Annual World Conference on Carbon, Dresden, Germany, July 12 - 17, 2015 Y1 - 2015 SP - S. 294 PB - Deutsche Keramische Gesellschaft e.V. CY - Köln ER - TY - CHAP A1 - Walter, Reni A1 - Günther, David A1 - Klepel, Olaf A1 - Niebrzydowska, Paula A1 - Wach, Anna A1 - Kuśtrowski, Piotr T1 - Carbon catalysts obtained by template assisted routes for oxidative dehydrogenation of ethylbenzene T2 - Annual World Conference on Carbon : (Carbon 2012) Krakow, Poland 17-22 June 2012 Y1 - 2012 SN - 978-1-62993-436-5 VL - 1 PB - Curran CY - Red Hook, NY ER - TY - CHAP A1 - Utgenannt, Stephan A1 - Vormelchert, Carolin A1 - Klepel, Olaf A1 - Jarczewski, Sebastian A1 - Drozdek, Michal A1 - Kustrowski, Piotr A1 - Erler, Thomas A1 - Rümmler, Stephan A1 - Bron, Michael T1 - Template assisted synthesis of porous carbon catalysts with systematically varied properties T2 - The zeolites : materials with engineered properties : book of abstracts / 7th FEZA Conference, July 3-7, 2017, Sofia, Bulgaria Y1 - 2017 SP - S. 199 CY - Sofia ER - TY - GEN A1 - Klepel, Olaf A1 - Utgenannt, Stephan A1 - Vormelchert, Carolin A1 - König, Mark A1 - Meißner, André A1 - Hansen, Felix A1 - Bölte, Jens-Henning Ingo Holger A1 - Sieber, Tim A1 - Heinemann, Robert A1 - Bron, Michael A1 - Rokicinska, Anna A1 - Jarczewski, Sebastian A1 - Kustrowski, Piotr T1 - Redox catalysts based on amorphous porous carbons T2 - Microporous Mesoporous Materials Y1 - 2021 U6 - https://doi.org/10.1016/j.micromeso.2021.111257 SN - 1387-1811 VL - 323 ER - TY - GEN A1 - Bölte, Jens-Henning A1 - Utgenannt, Stephan A1 - Schmidt, Max A1 - Klepel, Olaf A1 - Bron, Michael A1 - Rokicińska, Anna A1 - Jarczewski, Sebastian A1 - Kuśtrowski, Piotr T1 - S-doped and N+S-co-doped carbon catalysts in redox reactions T2 - Microporous and mesoporous materials N2 - In this contribution, the effects of heteroatom doping of porous carbon materials with S and N on their ability to catalyze redox-reactions involving the activation of molecular oxygen were investigated. For this purpose, a library of in total 54 undoped, S-doped and N + S-co-doped porous carbons was obtained via a template-based synthesis procedure using mesoporous silica gel as the template. To understand the influence of S on the properties of the doped carbons three different S-containing precursors, namely dimethyl sulfoxide (DMSO), p-toluene sulfonic acid and thiophene, were used. In order to investigate possible synergistic effects of S- and N-co-doping, urea was employed as the sole N-containing precursor. The obtained carbon catalysts were characterized by selected methods such as N2-physisorption at 77 K, X-ray diffraction (XRD), Raman spectroscopy, elemental analysis and X-ray photoelectron spectroscopy (XPS). Each carbon catalyst was tested in the oxidation of sulfurous acid (OSA) to sulfuric acid, the electrochemical oxygen reduction (ORR) and the oxidative dehydrogenation (ODH) of ethylbenzene. Owing to the similar textural and structural properties achieved through template-based synthesis of the carbon catalyst library, the results of the catalytic redox-reactions could directly be related to the respective heteroatom dopant. The observed trends indicate that in these redox-reactions S-species behave somewhat similar to O-species bound on the carbon surface. Furthermore, it can be shown that N + S co-doping rather combines the positive and negative effects of the individual dopants on the activity, than creating a synergistic effect that surpasses the individual contribution. KW - Porous carbon KW - Heteroatom-doping KW - Redox-reactions KW - Catalysis KW - Oxidation of sulfurous acid KW - Oxygen reduction reaction KW - Oxidative dehydrogenation of ethylbenzene Y1 - 2026 U6 - https://doi.org/10.1016/j.micromeso.2026.114129 SN - 1873-3093 VL - 407 SP - 1 EP - 11 PB - Elsevier BV CY - Amsterdam ER -