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oa The Electronic Structure of Platinum-Gold Alloy Particles
BETTER CATALYSTS FOR SELECTIVE OXIDATIONS
- Source: Platinum Metals Review, Volume 51, Issue 2, Apr 2007, p. 63 - 68
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- 01 Jan 2007
Abstract
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.
© Johnson Matthey