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Characterization of Supported Gold Catalysts with 197Au Mössbauer Effect Spectroscopy

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Abstract

We report on a 197Au Mössbauer study of several types of supported gold catalysts. Differences in particle size show up in the Mössbauer spectra by a change in the relative weight of the spectral contribution of the surface atoms. The presence of ionic gold in active gold catalysts is not observed. The spectra can be interpreted in terms of bulk-like contributions from the inner-core atoms plus contributions from the outermost atoms at the surface of the particles.

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Goossens, A., Crajé, M.W.J., van der Kraan, A.M. et al. Characterization of Supported Gold Catalysts with 197Au Mössbauer Effect Spectroscopy. Hyperfine Interactions 139, 59–66 (2002). https://doi.org/10.1023/A:1021231310835

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