Influence of internal and external surface area on impregnation and activity of 3D printed catalyst carriers

Paula F. Großmann, Markus Tonigold, Normen Szesni, Richard W. Fischer, Alexander Seidel, Klaus Achterhold, Franz Pfeiffer, Bernhard Rieger

Research output: Contribution to journalArticlepeer-review

Abstract

Direct ink writing as additive manufacturing technique was used to print two different boehmite based shapes, cylinders and monoliths, serving as catalyst carriers. These were wet impregnated targeting 0.3–0.9 wt% platinum loadings. ICP-OES, μCT and microscopy revealed dependencies from calcination temperature, geometry and platinum loading. Dehydrogenation reactions of perhydro dibenzyltoluene as liquid organic hydrogen carrier were performed examining the catalytic performance. Differences when executing full particle measurements led to the conclusion that direct ink writing as shaping technique for catalyst carriers and the respective impregnation is highly beneficial as more complex shapes can be obtained, resulting in higher activities.

Original languageEnglish
Article number106610
JournalCatalysis Communications
Volume175
DOIs
StatePublished - Feb 2023

Keywords

  • 3D printing
  • Additive manufacturing
  • Ceramics
  • Dehydrogenation reaction
  • Direct ink writing
  • Heterogeneous catalysis
  • Impregnation
  • Liquid organic hydrogen carrier

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