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Carbon dioxide reforming of methane over Ni–In/SiO2 catalyst without coke formation
Johanna Károlyi,Miklós Németh,Claudio Evangelisti,György Sáfrán,Zoltán Schay,Anita Horváth,Ferenc Somodi 한국공업화학회 2018 Journal of Industrial and Engineering Chemistry Vol.58 No.-
It was found that coke formation on Ni/SiO2, used in dry reforming of methane, can be eliminatedcompletely by addition of indium to the catalyst. The interaction of the two metals was suggested by theresults of TPR, CO-TPD and XPS measurements. The presence and uniform distribution of NiIn and Ni2Inalloy nanoparticles after reduction at 700 C of the calcined catalyst was shown by HAADF-STEM, HRTEMand EDX analysis. The indium atoms dilute the nickel surface inhibiting the formation of multiplebondedcarbon species thereby hindering the development of carbon nanostructures on the catalystsurface during dry reforming.