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MCF (mesostructured cellular foams) and NbMCF were used as supports for gold and silver. Bimetallic (Au–Ag) catalysts were prepared by metals loading (Au/Ag atomic ratio=0.5 and 2) on 3-aminopropyl-trimethoxysilane grafted supports and reduction by NaBH4 before calcination at 773K. The prepared samples were then activated in inert gas at 623K or reduced with hydrogen at 723K. The catalysts treated...