Document Server@UHasselt >
Research publications >
Please use this identifier to cite or link to this item:
|Title: ||Reversible restructuring of supported Au nanoparticles during butadiene hydrogenation revealed by operando GISAXS/GIWAXS.|
|Authors: ||Martin, David James|
Odarchenko, Yaroslav I.
Herbert, Jennifer J.
Beale, Andrew M.
|Issue Date: ||2017|
|Citation: ||CHEMICAL COMMUNICATIONS, 53(37), p. 5159-5162 (Art N° 32881)|
|Status: ||In Press|
|Abstract: ||Periodically arranged, monodisperse gold nanoparticles supported on flat silicon substrates were studied for the hydrogenation of 1,3-butadiene under operando conditions using Grazing Incidence Small- and Wide-Angle X-ray Scattering (GISAXS/GIWAXS). It was found that the composition and shape of the nanoparticles depends very much on the chemical environment; the particles are shown to be dynamic, undergoing reversible size and shape change particularly during catalytic reaction, highlighting a dynamism often not observed in traditional studies. Specifically, the size of the Au nanoparticles increases during butadiene hydrogenation and this is attributed to the partial removal of a Au2O3 at the metal–oxide interface and consequential shape change of the nanoparticle from a more hemispherical particle to a particle with a larger height to width ratio.|
|Notes: ||Beale, AM (reprint author), UCL, Dept Chem, 20 Gordon St, London WC1H 0AJ, England.
|ISI #: ||000400858400020|
|Type: ||Journal Contribution|
|Appears in Collections: ||Research publications|
Files in This Item:
|Accepted Manuscript||896.28 kB||Adobe PDF|
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.