Chemical Characterization of Cerium-Based Oxide-Supported Gold Catalysts

3 Chemical Characterization of Cerium-Based Oxide-Supported Gold Catalysts 

As outlined in the introduction to this chapter, this section will briefly review the chemical characterization studies on cerium-based oxide-supported noble metal (NM) catalysts that have been published since the first edition of Catalysis by Ceria and Related Materials in 2002. We suggest a reading of this book for a detailed and critical account of earlier studies on the topic. 

In recent years, the most significant progress has been made in the chemical characterization of cerium-based oxide-supported gold catalysts. There are a number of reasons that justify this observation. First, the main principles governing the chemical behaviour of the classic NM(Rh, Pd, Ptj/CeOg and ceria-related catalysts were reasonably well 

In this section, recent progress in the chemical characterization of conventional cerium-containing oxide-supported gold powder catalysts will be briefly discussed. We will focus our attention on Hg and CO chemisorption studies. There are several reasons justifying this choice. As discussed in Bernal et Hg and CO are by far the most commonly used probe molecules in the characterization of noble metals supported on ceria and closely related mixed oxides. Also very importantly, ceria-based gold catalysts are known to be highly active materials for CO oxida- 

1 Hydrogen adsorption on cerium-based oidde-supported gold catalysts 

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