Ceria (CeO2)-based systems are widely applied in catalytic applications with the reducibility of ceria being and essential characteristic of the catalysts. However, the actual role of ceria in the catalytic activity is still not fully understood. To unravel it, well-defined ceria-based model catalysts are prepared experimentally or created theoretically and studied. In this talk, recent results on ceria-supported Ni, Co and Cu model catalysts will be discussed, as examples of catalysts for methane dry reforming (DRM). Also, the Ni/ceria system is considered for the water-gas shift reaction (WGS)<sup> </sup>and the direct conversion of methane to methanol (DMTM).<sup> </sup>The emphasis is here put on theoretical studies and special attention is given to both the effects of ceria as catalyst support and those of having a water-rich environment for the WGS and DMTM reactions.

Metal-ceria interactions and catalytic activity: Theoretical perspective

2019 Fall National Meeting

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