Flame made ceria supported noble metal catalysts for efficient H2 production via the water gas shift reaction

16th International Conference on X-ray Absorption Fine Structure

Cavusoglu, G.^1,2 ; Lichtenberg, H.^1,2 ; Gaur, A.^2 ; Goldbach, A.^3 ; Grunwaldt, J.-D.^1,2,3

Institute of Catalysis Research and Technology (IKFT), Karlsruhe Institute of Technology (KIT), Germany^1

Institute for Chemical Technology and Polymer Chemistry (ITCP), KIT, Germany^2

Dalian Institute of Chemical Physics (DICP), Dalian National Laboratory for Clean Energy (DNL), China^3

关键词: CO conversion;    High specific surface area;    High-temperature water;    Methane formation;    Nanocrystallinity;    Supported noble metal catalysts;    Water gas shift (WGS) reaction;    WGS reactions;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/712/1/012065/pdf
DOI  :  10.1088/1742-6596/712/1/012065

来源: IOP

【 摘 要 】

Rh/ceria catalysts were synthesized by flame spray pyrolysis for high temperature water gas shift (WGS) reactions. These catalysts show a high specific surface area due to a high degree of nanocrystallinity. X-ray absorption spectroscopy (XAS) unraveled the formation of small Rh particles under WGS reaction conditions. The catalytic activity was examined at atmospheric pressure by measuring CO conversion as a function of temperature. Some methane formation was observed above 310°C.