Microprobe applications for the characterization of catalyst systems

E. Taglauer, H. Knözinger, S. Günther

Research output: Contribution to journalConference articlepeer-review

4 Scopus citations

Abstract

The characterization of heterogeneous catalysts by ion beam and microprobe methods is briefly reviewed. Typical properties regarding composition and structure of supported catalysts are considered. These are often favorable for ion beam analysis (heavy adsorbate on light substrate) and have morphological structures in the regime of microprobe resolution (μm). Ion beam methods have promising potential (quantification, depth information) for catalyst characterization but they are not yet extensively used in this field. Microprobe analysis has to be compared with other spatially resolving methods, particularly electron microscopy. The advantage of ion microprobes lies in the possibility to obtain mass sensitive lateral information. As a special topic the investigation of material spreading as a case of solid-solid wetting is discussed, which has been investigated by low and high energy ion scattering, laser Raman microscopy (LRM) and recently with scanning photoelectron microscopy (SPEM). Spreading opens a possibility for an interesting new way to catalyst preparation.

Original languageEnglish
Pages (from-to)638-646
Number of pages9
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume158
Issue number1
DOIs
StatePublished - 2 Sep 1999
Externally publishedYes
EventProceedings of the 1998 6th International Conference on Nuclear Microprobe Technology and Applications (ICNMTA) - Cape Town, S Afr
Duration: 11 Oct 199816 Oct 1998

Fingerprint

Dive into the research topics of 'Microprobe applications for the characterization of catalyst systems'. Together they form a unique fingerprint.

Cite this