TY - JOUR A1 - Friberg, I. A1 - Clark, A. H. A1 - Ho, P. A1 - Sadokhina, N. A1 - Smales, Glen Jacob A1 - Woo, J. A1 - Auray, X. A1 - Ferri, D. A1 - Nachtegaal, M. A1 - Krocher, O. A1 - Olsson, L. T1 - Structure and performance of zeolite supported Pd for complete methane oxidation N2 - The influence of zeolite support materials and their impact on CH4 oxidation activity was studied utilizing Pd supported on H-beta and H-SSZ-13. A correlation between CH4 oxidation activity, Si/Al ratio (SAR), the type of zeolite framework, reduction-oxidation behaviour, and Pd species present was found by combining catalytic activity measurements with a variety of characterization methods (operando XAS, NH3-TPD, SAXS, STEM and NaCl titration). Operando XAS analysis indicated that catalysts with high CH4 oxidation activity experienced rapid transitions between metallic- and oxidized-Pd states when switching between rich and lean conditions. This behaviour was exhibited by catalysts with dispersed Pd particles. By contrast, the formation of ion-exchanged Pd2+ and large Pd particles appeared to have a detrimental effect on the oxidation-reduction behaviour and the conversion of CH4. The formation of ion-exchanged Pd2+ and large Pd particles was limited by using a highly siliceous beta zeolite support with a low capacity for cation exchange. The same effect was also found using a small-pore SSZ-13 zeolite due to the lower mobility of Pd species. It was found that the zeolite support material should be carefully selected so that the well-dispersed Pd particles remain, and the formation of ion-exchanged Pd2+ is minimized. KW - SAXS KW - Zeolites KW - Methane Oxidation KW - XAS KW - Catalysis PY - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:b43-529606 VL - 382 SP - 3 EP - 12 PB - Elsevier B.V. AN - OPUS4-52960 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Bonsiepen, L. A1 - Ferri, D. A1 - de Günther, S. A1 - Kaes, F. A1 - Krug, Sonja A1 - Lauer, R. A1 - Sleczek, E. T1 - LunchTalk Bericht: Sammlungserschließung N2 - Das Basisprojekt »Sammlungserschießung« erforscht exemplarisch einen bisher unerschlossenen Sammlungsbereich der Lipperheideschen Kostümbibliothek, angesiedelt an der Kunstbibliothek der Staatlichen Museen zu Berlin. KW - Restaurierung KW - Konservierungswissenschaft KW - Informatik KW - Interaction Design KW - Kunstgeschichte KW - Modegeschichte KW - Erschließung KW - Museum KW - Sammlung PY - 2013 IS - 44 SP - 3 EP - 6 AN - OPUS4-30292 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -