OF58 The Role of Undercoordinated Surface Al3+ Ions in the Anchoring and Stabilization of Catalytically Active Phases on γ-Al2O3

Thursday, June 9, 2011: 1:30 PM
Ambassador Ballroom 3 (Detroit Marriott Hotel at the Renaissance Center )
Ja Hun Kwak1, Donghai Mei1, Charles H.F. Peden1, Lawrence F. Allard2 and JŠnos Szanyi1, (1)Institute for Interfacial Catalysis, Pacific Northwest National Laboratory, Richland, WA, (2)Materials Science & Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN
The results presented clearly show that the anchoring sites of a catalytically active phase (Pt) on g-Al2O3 are pentacoordinate Al3+ ions.  The strong interaction between the anchoring sites and the catalytic phase prevents agglomeration that may lead to catalyst deactivation.

Extended Abstracts:

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