Abstract
Cationic gold in strong interaction with ceria resist leaching by cyanide anions and forms an ideal precursor to small metallic gold clusters following reduction with high activity in butadiene hydrogenation. The gold clusters are metallic in nature and consists of less than ten gold atoms. Combined in situ XANES/activity studies show that the catalytic activity is linked to reduced gold atoms and not cations. Model studies on gold supported on ceria rods and cubes suggest that gold oxide particle on oxygen-rich ceria surfaces { 11 O} and { 111 } resist this leaching step and display quite high activity in the oxidation of CO.
| Original language | English |
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| Title of host publication | EuropaCat IX, Catalysis for a Sustainable World : 30th August - 4th September 2009, Salamanca, Spain : abstracts |
| Pages | O1-4- |
| Publication status | Published - 2009 |
| Event | conference; EuropaCat IX : Catalysis for a sustainable world; 2009-08-30; 2009-09-04 - Duration: 30 Aug 2009 → 4 Sept 2009 |
Conference
| Conference | conference; EuropaCat IX : Catalysis for a sustainable world; 2009-08-30; 2009-09-04 |
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| Period | 30/08/09 → 4/09/09 |
| Other | EuropaCat IX : Catalysis for a sustainable world |