Synchrotron X-ray microprobe and computed microtomography for characterization of nanocatalysts

K. W. Jones, H. Feng, A. Lanzirotti, D. Mahajan

Research output: Contribution to journalArticle

8 Scopus citations

Abstract

Gas-to-liquids (GTL) is a viable pathway for synthesis of clean fuels from natural gas. One of the attractive synthesis options is the Fischer-Tropsch (F-T) method using an iron catalyst to yield a broad range of hydrocarbons. We collected catalyst samples during three separate F-T runs that utilized nanophase (mean particle diameter (MPD): 3 nm and 20-80 nm) and micrometer-sized (32.5 μm) Fe2O3 that served as catalyst precursors. The collected samples were characterized with micro-X-ray fluorescence and computed microtomography at the National Synchrotron Light Source (NSLS). Results found with two different measurement techniques indicated that there was heterogeneity on a spatial scale corresponding to volumes of roughly 10 3 μm3.

Original languageEnglish
Pages (from-to)331-334
Number of pages4
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume241
Issue number1-4
DOIs
StatePublished - 1 Dec 2005

Keywords

  • Catalysts
  • Computed Microtomography
  • Fischer-Tropsch
  • Hydrocarbons
  • Synchrotron X-ray microprobe

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