BACKGROUND: Selective CO oxidation was studied in a hydrogen-rich environment over monolithic Au/MgO/Al 2 O 3 catalysts at 50-150• C. The wash-coating of cordierite monoliths with colloidal Al 2 O 3 was followed by wet impregnation of MgO; the subsequent deposition of Au was achieved using various methods. All catalysts were characterized using ICP and ESEM.
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