Реферат: Me@C nanocomposites were prepared by evaporation of overheated liquid drop of Me in the flow of inert gas containing a hydrocarbon. The resulting carbon-coated nickel and iron nanoparticles contain metal cores of about 5 nm in size that are wrapped in a few layers of graphene-like carbon. Experimental data and theoretical results give evidence of the ability of carbon coating in nanocomposites Fe@C and Ni@C to H2 activation by dissociative adsorption due to the presence of space and structure defects and/or the presence of transition metal in subsurface layer. Since molecular hydrogen dissociation is the key step of hydrogenation reactions, both Ni@C and Fe@C provide high conversion of phenylacetylene (PA) (about 100%) during hydrogenation at the temperatures above 150 and 300 °C, respectively. Fe@C provides excellent styrene (ST) selectivity: 86% at 99% PA conversion at 300 °C. ST selectivity is moderate on Ni@C (about 60%) in the temperature range of 100–150 °С and low at higher temperatures.

Библиографическая ссылка: Erokhin A.V. , Lokteva E.S. , Yermakov A.Y. , Boukhvalov D.W. , Maslakov K.I. , Golubina E.V. , Uimin M.A.
Phenylacetylene hydrogenation on Fe@C and Ni@C core–shell nanoparticles: About intrinsic activity of graphene-like carbon layer in H2 activation
Carbon. 2014. V.74. P.291-301. DOI: 10.1016/j.carbon.2014.03.034 Scopus OpenAlex

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Scopus:	2-s2.0-84899470936
OpenAlex:	W2044761733

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БД	Цитирований
OpenAlex	82

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