Catalytic Ammonia Decomposition Over Ruthenium Nanoparticles Supported on Nano-Titanates

Asbjørn Klerke, Søren Kegnæs Klitgaard, Rasmus Fehrmann

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Nanosized Na2Ti3O7, K2Ti6O13 and Cs2Ti6O13 materials were prepared and used as supports of ruthenium nanoparticles for catalytic ammonia decomposition. It is shown that these catalysts exhibit higher catalytic activity than ruthenium supported on TiO2 nanoparticles promoted with cesium. The difference is attributed to the use of nanostructured materials with incorporated alkali metals in the crystal lattice, which apparently gives a higher effect of the promoter. All samples were characterized by X-ray powder diffraction, transmission electron microscopy and N-2 physisorption measurements. Furthermore, the effect of ruthenium loading on the catalytic decomposition of ammonia was investigated.
Original languageEnglish
JournalCatalysis Letters
Volume130
Issue number3-4
Pages (from-to)541-546
ISSN1011-372X
DOIs
Publication statusPublished - 2009

Keywords

  • Hydrogen production
  • Ruthenium nanoparticles
  • Titanate nanowires
  • Ammonia decomposition
  • Titanate nanotubes

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