Jump to main content
Jump to site search

Issue 2, 2013
Previous Article Next Article

Particle size and support effects in hydrogenation over supported gold catalysts

Author affiliations

Abstract

Particle size and support effects were determined for the hydrogenation of nitrobenzene over gold supported on alumina and titania by kinetic experiments, TEM and in situ high energy resolution fluorescence detected X-ray absorption spectroscopy (HERFD XAS). Especially when supported on alumina, the catalytic activity correlated well with the fraction of particles smaller than 2 nm. These particles are able to split hydrogen on undercoordinated gold atoms, hence the strong particle size effect. In addition, on titania the increased length of the metal–support interface for smaller particles leads to enhanced activity because of the beneficial effect of the metal–support interface on the splitting of hydrogen. Reporting the average particle size is not always relevant in describing catalytic performance.

Graphical abstract: Particle size and support effects in hydrogenation over supported gold catalysts

Back to tab navigation

Article information


Submitted
11 Jul 2012
Accepted
21 Sep 2012
First published
25 Sep 2012

Catal. Sci. Technol., 2013,3, 454-461
Article type
Paper

Particle size and support effects in hydrogenation over supported gold catalysts

U. Hartfelder, C. Kartusch, M. Makosch, M. Rovezzi, J. Sá and J. A. van Bokhoven, Catal. Sci. Technol., 2013, 3, 454 DOI: 10.1039/C2CY20485A

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.

Read more about how to correctly acknowledge RSC content.


Social activity

Search articles by author

Spotlight

Advertisements