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An SiO2-Embedded Nanoscopic Pd/Au Alloy Colloid

MPS-Authors
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Bönnemann,  H.
Research Group Bönnemann, Max-Planck-Institut für Kohlenforschung, Max Planck Society;

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Endruschat,  U.
Research Group Bönnemann, Max-Planck-Institut für Kohlenforschung, Max Planck Society;

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Tesche,  Bernd
Service Department Tesche (EM), Max-Planck-Institut für Kohlenforschung, Max Planck Society;

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Rufinska,  Anna
Service Department Farès (NMR), Max-Planck-Institut für Kohlenforschung, Max Planck Society;

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Lehmann,  Christian W.
Service Department Lehmann (EMR), Max-Planck-Institut für Kohlenforschung, Max Planck Society;

Wagner,  F. E.
Research Group Bönnemann, Max-Planck-Institut für Kohlenforschung, Max Planck Society;

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Citation

Bönnemann, H., Endruschat, U., Tesche, B., Rufinska, A., Lehmann, C. W., Wagner, F. E., et al. (2000). An SiO2-Embedded Nanoscopic Pd/Au Alloy Colloid. European Journal of Inorganic Chemistry, 2000(5), 819-822. doi:10.1002/(SICI)1099-0682(200005)2000:5<819:AID-EJIC819>3.0.CO;2-F.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0024-65AE-A
Abstract
A bimetallic, fully alloyed Pd/Au colloid of 3.0 nm particle size, obtained by the co-reduction of Pd and Au salts with tetraalkylammonium triethylhydroborate, was embedded in a silica matrix employing a modified sol–gel procedure with THF as the solvent. The removal of the protecting tenside led to a mesoporous texture with a comparatively narrow pore distribution. The physical characterisation by a combination of several techniques has shown that the SiO2-embedded Pd/Au colloid preserves the size and the structural characteristics of the colloidal metal precursor. The new material exhibits catalytic properties in selective hydrogenation.