ISSN 1070-4272, Russian Journal of Applied Chemistry, 2016, Vol. 89, No. 4, pp. 598−602. © Pleiades Publishing, Ltd., 2016.
Original Russian Text © E.A. Ponomareva, V.M. Shkinev, S.V. Zaglyadova, I.V. Krasnikova, E.V. Egorova, 2016, published in Zhurnal Prikladnoi Khimii, 2016,
Vol. 89, No. 4, pp. 484−488.
Abstract—The possibility of using new carbon–carbon composites as supports for a copper catalyst for ethanol
dehydrogenation was demonstrated. The composites, which represented carbon nanostructures (single-walled
carbon nanotubes or carbon nanoﬁ bers) attached to the surface of carbon microﬁ bers, were prepared by essen-
tially different procedures. Copper catalysts deposited on these supports exhibited different activity in the ethanol
conversion, which is associated with the distribution and size of copper particles.
Copper Сatalysts Based on Carbon–Carbon Fiburous Materials
for Ethanol Dehydrogenation
E. A. Ponomareva
, V. M. Shkinev
, S. V. Zaglyadova
I. V. Krasnikova
, and E. V. Egorova
Moscow University of Technology, pr. Vernadskogo 78, Moscow, 119454 Russia
Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences,
ul. Kosygina 19, Moscow, 119334 Russia
Joint Research and Development Center, Leninskii pr. 55, k. 1, Moscow, 119333 Russia
Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences,
pr. Akademika Lavrent’eva 5, Novosibirsk, 630090 Russia
Received February 24, 2016
Porous carbon materials are well known as sorbents
and catalysts supports [1, 2]. Their wide application
is due to such important characteristics as chemical
and thermal stability, developed surface, and ability
to control pore structure and adsorption properties.
Curently, a special interest evoke carbon nanostructures
[nanoﬁ bers (CNF), nanotubes (CNT), fullerenes] used
as catalyst supports. That is noted in the recent reviews
concerning the exhaust gas treatment , Fischer–
Tropsch synthesis , and production of biodiesel fuels
. Nevertheless, the commercial use of these materials
is limited because of technological problems arising
in manipulations with micro- and nanoparticles, such
as the catalyst removal with the reaction ﬂ ow or large
pressure drop along the catalyst bed. A possible way to
solve these problems is application of a hierarchically
structured carbon–carbon composite material which
consists of a carbon matrix and carbon nanostructures
on its surface . Carbon fabrics, which are networks
of ﬁ laments consisting of interwoven microﬁ bers
3–7 μm in diameter, were shown to be promising as
matrices. Such fabrics can be considered as structured
supports , and many authors note the technological
convenience of their usage [8–10].
Carbon nanoﬁ bers on the surface of carbon
microﬁ bers were ﬁ rstly synthesized by Downs and
Baker  in 1991. Later, carbon nanotubes were
successfully grown on the surface of microﬁ bers .
Chemical vapor deposition (CVD) is a widely used
technique for the nanostructured carbon formation.
A metal catalyst is deposited onto the surface by
impregnation of the initial matrix with appropriate salts
used as precursors, electroplating [13, 14], or sputtering
of metal nanoparticles [15, 16]. Then, CVD synthesis
is performed with variation of such parameters as
temperature, reaction time, carbon source, and gas ﬂ ow
rate. Speciﬁ c procedures for preparing the composite
can strongly differ depending on the application. The
other, less widely used procedures for CNT preparation
on the carbon surface are electrophoretic deposition
 or interaction between surface functional groups of
carbon constituents of the composite [18–21].