Promoted Ru on high-surface area graphite for efficient miniaturized production of hydrogen from ammonia

Rasmus Zink Sørensen, Asbjørn Klerke, Ulrich Quaade, Søren Jensen, Ole Hansen, Claus H. Christensen

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Promoted Ru/C catalysts for decomposition of ammonia are incorporated into micro-fabricated reactors for the first time. With the reported preparation technique, the performance is increased more than two orders of magnitude compared to previously known micro-fabricated reactors for ammonia decomposition. The catalytic activities for production of hydrogen from ammonia are determined for different promoters and promoter levels on graphite supported ruthenium catalysts. The reactivity trends of the Ru/C catalysts promoted with Cs and Ba are in excellent agreement with those known from earlier studies of both ammonia synthesis and decomposition, and it is shown how proper promotion can facilitate ammonia decomposition at temperatures below 500 K.
Original languageEnglish
JournalCatalysis Letters
Volume112
Issue number1-2
Pages (from-to)77-81
ISSN1011-372X
DOIs
Publication statusPublished - 2006

Keywords

  • Ammonia decomposition
  • Hydrogen production
  • Ruthenium catalyst
  • Promotion
  • Graphite support
  • Micro-fabricated reactors

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