Journal Article

PUBDB-2016-02027

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Characterisation of the surface of freshly prepared precious metal catalysts

Parker, S. F. (Corresponding author) ; Adroja, D. ; Jiménez-Ruiz, M. ; Tischer, M.DESY* ; Möbus, K. ; Wieland, S. D. ; Albers, P.

2016
RSC Publ. Cambridge

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Please use a persistent id in citations: doi:10.1039/C6CP01027J  doi:10.3204/PUBDB-2016-02027

Abstract: A combination of electron microscopy, X-ray and neutron spectroscopies and computational methods has provided new insights into the species present on the surface of freshly prepared precious metal catalysts. The results show that in all cases, at least half of the surface is metallic or nearly so, with the remainder covered by oxygen, largely as hydroxide. Water is also present and is strongly held; weeks of pumping under high vacuum is insufficient to remove it. The hydroxyls are reactive as shown by their reaction with or displacement by CO and can be removed by hydrogenation. This clearly has implications for how precious metal catalysts are activated after preparation.

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Contributing Institute(s):

1. FS-Undulator Systeme (FS-US)

Research Program(s):

1. 6214 - Nanoscience and Materials for Information Technology (POF3-621) (POF3-621)

Experiment(s):

1. DORIS Beamline E4 (DORIS III)
2. DORIS Beamline X1 (DORIS III)

Appears in the scientific report 2016

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Database coverage:
; ; ; Allianz-Lizenz / DFG ; Current Contents - Physical, Chemical and Earth Sciences ; IF < 5 ; JCR ; NCBI Molecular Biology Database ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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