Abstract
The alignment of small metal particles on semiconducting or insulating substrates is of considerable importance in the areas of heterogeneous catalysis and electronic materials research. Previous work has shown an epitaxial growth of 2nm Au particles on MgO smoke prepared by an indirect exposure of the oxide to evaporated Au atoms. Others reported an epitaxial growth or random orientation of An on MgO depending on whether the oxide was vacuum cleaved or air cleaved. EDS showed the presence of bimetallic clusters in supported Ru-Au/MgO catalysts prepared by coimpregnation of the oxide with aqueous precursor metal salt solutions. A μED study of two bimetallic samples having a total metal loading of 3.75 wt % (with 93 atom % Ru) and 3.37 wt % (with 14 atom % Ru) was carried out to understand the structure of small bimetallic clusters and the relative alignment of metal particles on MgO. In spite of the bulk immiscibil ity of Ru and Au, bimetallic clusters were identified by EDS in the size range of < 5 nm.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Proceedings, annual meeting, Electron Microscopy Society of America
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
