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Dr. Mathijs W. Zandbergen, Dr. Simon D. M. Jacques, Prof. Dr. Bert M. Weckhuysen and Dr. Andrew M. Beale Chemical Probing within Catalyst Bodies by Diagonal Offset Raman Spectroscopy Angewandte Chemie International Edition 51

Version of Record online: 8 DEC 2011 | DOI: 10.1002/anie.201107175

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A vibrational fingerprint: A Raman technique has been developed to retrieve spatiotemporal chemical information from millimeter-sized catalyst bodies under preparation. An incipient wetness impregnation of γ-Al2O3 catalysts with ammonium heptamolybdate was followed. Diagonal offset Raman spectroscopy was able to distinguish between surface, subsurface, and bulk phase of the catalyst bodies (see picture).

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