Dry reforming of methane over Zr- and Y-modified Ni/Mg/Al double-layered hydroxides
Journal article, Peer reviewed
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Original versionCatalysis communications. 2018, 117 26-32. 10.1016/j.catcom.2018.08.024
Zr- and Y-promoted Ni/Mg/Al double-layered hydroxides were investigated in dry reforming of methane, DRM (10% CH4, CH4/CO2 = 1, GHSV = 20,000 h−1) for the first time. Modification of the double-layered hydroxides with 5 wt% of zirconium and 0.4 wt% of yttrium resulted in the formation of ZrO2-Y2O3 solid solution, which largely contributed to the enhancement of catalyst's stability with time-on-stream at 700 °C in DRM. Also, the modified catalyst demonstrated the limitation of the reverse WGS reaction, as confirmed by powder XRD due to the absence of the rhombohedral hydrotalcite structure.