Narrowly dispersed silica supported osmium nanoparticles prepared by an organometallic approach: H2 and CO adsorption stoichiometry and hydrogenolysis catalytic activity

Jia En Low; Annette Foelske-Schmitz; Frank Krumeich; Michael Wörle; David Baudouin; Fernando Rascón; Christophe Copéret

doi:10.1039/C3DT50980J

You do not have JavaScript enabled. Please enable JavaScript to access the full features of the site or access our non-JavaScript page.

Narrowly dispersed silica supported osmium nanoparticles prepared by an organometallic approach: H₂ and CO adsorption stoichiometry and hydrogenolysis catalytic activity†

Jia En Low,^a Annette Foelske-Schmitz,^b Frank Krumeich,^a Michael Wörle,^a David Baudouin,^a Fernando Rascón^a and Christophe Copéret*^a

Author affiliations

* Corresponding authors

^a ETH Zurich, Department of Chemistry, Wolfgang-Pauli-Strasse 10, Zurich, Switzerland

^b Electrochemistry Laboratory, Paul Scherrer Institut, CH-5232 Villigen, Switzerland
E-mail: ccoperet@inorg.chem.ethz.ch

Abstract

Osmium(cyclooctadiene)(cyclooctatetraene) is used as a molecular precursor to prepare small and narrowly distributed silica supported nanoparticles upon a mild treatment under H₂ (1.1 ± 0.3 nm, ca. 90 atoms). Static volumetric chemisorption combined with HAADF-STEM shows that Os nanoparticles adsorb 1.7 ± 0.1 H and 1.4 ± 0.1 CO per surface atom. These particles present high activity in the hydrogenolysis of alkanes via a dimetallacyclopentane mechanism.

This article is part of the themed collection: Molecular precursors for precision synthesis of nanomaterials

Download options Please wait...

Supplementary files

Article information

DOI: https://doi.org/10.1039/C3DT50980J
Article type: Paper
Submitted: 14 Apr 2013
Accepted: 09 May 2013
First published: 10 May 2013

Download Citation

Dalton Trans., 2013,42, 12620-12625

Permissions

Request permissions

Narrowly dispersed silica supported osmium nanoparticles prepared by an organometallic approach: H₂ and CO adsorption stoichiometry and hydrogenolysis catalytic activity

J. E. Low, A. Foelske-Schmitz, F. Krumeich, M. Wörle, D. Baudouin, F. Rascón and C. Copéret, Dalton Trans., 2013, 42, 12620 DOI: 10.1039/C3DT50980J

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Social activity

Fetching data from CrossRef.
This may take some time to load.

Dalton Transactions