Issues »  Volume 42, Issue 8

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

A. G. Dyachenko$^{1}$, O. V. Ishchenko$^{1}$, L. Yu. Matzui$^{1}$, V. E. Diyuk$^{1}$, A. V. Vakalyuk$^{1}$, A. V. Yatsymyrskyi$^{1}$, O. A. Syvolozhskyi$^{1}$, O. S. Yakovenko$^{1}$, O. V. Mischanchuk$^{2}$

$^{1}$Taras Shevchenko National University of Kyiv, 60 Volodymyrska Str., UA-01033 Kyiv, Ukraine
$^{2}$O. O. Chuiko Institute of Surface Chemistry, NAS of Ukraine, 17 General Naumov Str., UA-03164 Kyiv, Ukraine

Received: 05.12.2019. Download: PDF

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 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.

Key words: graphite nanoplatelets, CO$_2$ methanation, bimetallic particles, supported catalysts.

URL: http://mfint.imp.kiev.ua/en/abstract/v42/i08/1055.html

DOI: https://doi.org/10.15407/mfint.42.08.1055

PACS: 82.20.-w, 82.30.-b, 82.30.Hk, 82.45.Jn, 82.65.+r

Citation: A. G. Dyachenko, O. V. Ishchenko, L. Yu. Matzui, V. E. Diyuk, A. V. Vakalyuk, A. V. Yatsymyrskyi, O. A. Syvolozhskyi, O. S. Yakovenko, and O. V. Mischanchuk, Graphite Nanoplatelets Modified with Bimetallic Ni–Fe Particles for Catalysis Purposes, Metallofiz. Noveishie Tekhnol., 42, No. 8: 1055—1063 (2020)

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