The Electronic Structure of Platinum-Gold Alloy Particles BETTER CATALYSTS FOR SELECTIVE OXIDATIONS
Although the platinum-gold (Pt-Au) phase diagram shows a wide miscibility gap due to limited mutual solubility of the components, small particles (< 3 nm) form homogeneous alloys because all atoms retain their atomic electronic structure, and rehybridisation due to band formation does not take pl...
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Published in | Johnson Matthey technology review Vol. 51; no. 2; pp. 63 - 68 |
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Main Author | |
Format | Journal Article |
Language | English |
Published |
London
Johnson Matthey PLC
01.04.2007
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Subjects | |
Online Access | Get full text |
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Summary: | Although the platinum-gold (Pt-Au) phase diagram shows a wide miscibility gap due to limited mutual solubility of the components, small particles (< 3 nm) form homogeneous alloys because all atoms retain their atomic electronic structure, and rehybridisation due to band formation does not take place. Supported Pt-Au catalysts are often superior to those containing Pt alone for low-temperature selective oxidations. |
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ISSN: | 0032-1400 2056-5135 |
DOI: | 10.1595/147106707X187353 |