Catalytically active gold: The role of cluster morphology
نویسندگان
چکیده
Recent studies of the CO oxidation activity exhibited by highly dispersed nano-gold (Au) catalysts have reached the following conclusions: (a) bilayer structures of Au are critical; (b) a strong interaction between Au and the support leads to wetting and electronrich Au; (c) oxidative environments deactivate Au catalyst by re-oxidizing the support, which causes the Au to de-wet and sinter. Recent results have shown that the direct intervention of the support is not necessary to facilitate the CO oxidation reaction; therefore, an Au-only mechanism is sufficient to explain the reaction kinetics. # 2005 Published by Elsevier B.V.
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