Support effects on the activity of Ni catalysts for the propane steam reforming reactionSupport effects on the activity of Ni catalysts for the propane steam reforming reaction Peer-Reviewed Journal Publication Δημοσίευση σε Περιοδικό με Κριτές 2022-10-112021enThis research has been co-financed by the European Union and Greek national funds through the Operational Program Competitiveness, Entrepreneurship and Innovation, under the call RESEARCH–CREATE–INNOVATE (project code: T1EDK–02442).The catalytic performance of supported Ni catalysts for the propane steam reforming reaction was investigated with respect to the nature of the support. It was found that Ni is much more active when supported on ZrO2 or YSZ compared to TiO2, whereas Al2O3− and CeO2-supported catalysts exhibit intermediate performance. The turnover frequency (TOF) of C3H8 conversion increases by more than one order of magnitude in the order Ni/TiO2 < Ni/CeO2 < Ni/Al2O3 < Ni/YSZ < Ni/ZrO2, accompanied by a parallel increase of the selectivity toward the intermediate methane produced. In situ FTIR experiments indicate that CHx species produced via the dissociative adsorption of propane are the key reaction intermediates, with their hydrogenation to CH4 and/or conversion to formates and, eventually, to CO, being favored over the most active Ni/ZrO2 catalyst. Long term stability test showed that Ni/ZrO2 exhibits excellent stability for more than 30 h on stream and thus, it can be considered as a suitable catalyst for the production of H2 via propane steam reforming.http://creativecommons.org/licenses/by/4.0/Nanomaterials118Kokka_et_al_Nanomaterials_11(8)_2021.pdfChania [Greece]Library of TUC2022-10-11application/pdf3.2 MBfree Kokka Aliki Κοκκα Αλικη Petala Athanasia Panagiotopoulou Paraskevi Παναγιωτοπουλου Παρασκευη MDPI Propane steam reforming H2 production Ni TiO2 CeO2 YSZ ZrO2 Al2O3 Drifts