Graphite Nanoplatelets Modified with Bimetallic Ni–Fe Particles for Catalysis Purposes

A. G. Dyachenko, Taras Shevchenko National University of Kyiv, 60 Volodymyrska Str., UA-01033 Kyiv, Ukraine, O. V. Ishchenko, L. Yu. Matzui, V. E. Diyuk, A. V. Vakalyuk, A. V. Yatsymyrskyi, O. A. Syvolozhskyi, O. S. Yakovenko, O. V. Mischanchuk, Taras Shevchenko National University of Kyiv, 60 Volodymyrska Str., UA-01033 Kyiv, Ukraine, Taras Shevchenko National University of Kyiv, 60 Volodymyrska Str., UA-01033 Kyiv, Ukraine (+6 others)
2020 Metallofizika i novejsie tehnologii  
The structure and surface morphology of graphite nanoplatelets (GNPs) modified by bimetallic Ni-Fe phase with 80% mass. Ni and 20% mass. Fe is investigated by the methods of scanning electron microscopy and X-ray analysis. The bimetallic active phase is applied onto GNPs surface with impregnation method using nitrate solutions of metals. The prepared Ni 80 Fe 20 /GNPs composite demonstrated high catalytic performance in the reaction of CO 2 methanation. At the temperature range of 350-450°C, it
more » ... ge of 350-450°C, it exhibited a high efficiency of CO 2 conversion compared to bulk Ni 80 Fe 20 . The thermoprogrammed desorption study of the surface condition of the Ni 80 Fe 20 /GNPs composite after exposition in the catalytic process showed that H 2 O (m/z = = 18), CO (m/z = 28) and CO 2 (m/z = 44) particles are desorbed from the surface.
doi:10.15407/mfint.42.08.1055 fatcat:tescosf3n5gyjbqkn23magzhee