Russian Journal of Applied Chemistry, 2013, Vol. 86, No. 5, pp. 772−776.
Pleiades Publishing, Ltd., 2013.
Original Russian Text © I.V. Val’tsifer, V. N. Strel’nikov, B.A. Val’tsifer, E.A. Lebedeva, S.A. Astaf’eva, 2013, published in Zhurnal Prikladnoi Khimii, 2013,
Vol. 86, No. 5, pp. 825−829.
AND POLYMERIC MATERIALS
Study of Structuring of Surface-Modiﬁ ed Technical-Grade
Carbon Particles with Metal Oxides
I. V. Val’tsifer, V. N. Strel’nikov, B. A. Val’tsifer, E. A. Lebedeva, and S. A. Astaf’eva
Institute of Technical Chemistry, Ural Branch, Russian Academy of Sciences, Perm, Russia
Received April 27, 2012
Abstract—Effect of a nanosize coating of technical-grade carbon particles with metal oxides NiO, CuO, PbO,
on processes in which continuous carbon structures are formed in an oligomer formulation was studied.
The elastic and dissipative constituents of rheological properties of the 3D carbon structures being formed were
determined. An optical method and computerized data processing yielded data on structuring of a ﬁ lled oligomer
system under various testing conditions.
Recently, nanomaterials and, in particular,
nanoparticle-including systems have been ﬁ nding
increasing use owing to their new unique properties.
In this communication, we present results obtained in
a study of a system based on an oligomer binder and
technical-grade carbon particles coated with nanosize
metal oxides. These oxides, in turn, have found wide
application in various ﬁ elds of science and technology.
They are used as catalysts for numerous reactions, such as
carbon oxidation, hydrogenation and dehydrogenation,
reduction of of nitrogen and sulfur oxides [1–3].
Use of nanodispersed copper, lead, bismuth, and
nickel oxides is believed to be promising in development
of complex catalysts for combustion processes .
Dispersed carbon particles in an oligomer binder
are capable, due to physical forces, of structuring
and formation of continuous 3D structures. This
phenomenon has been used to develop nanodispersed
complex catalysts based on technical-grade carbon
coated with a metal oxide. The formation of a carbon
skeleton leads to an increase in the heat conductivity of
the system and to presence of catalytically active metal
oxides at higher temperature regions, speciﬁ cally, on the
surface of the carbon skeleton [5, 6].
The viscosity and ﬂ ow point of ﬁ lled systems depend
on the concentration and shape of ﬁ ller particles and on
the properties of the polymeric medium [7–9]. When
dispersed particles form a 3D skeleton in the system with
an oligomer binder having properties of a Newtonian
ﬂ uid, viscoelastic properties are manifested. The general
rheological behavior pattern of systems of this kind is
determined by the existence of an ultimate strength of
the brittle structural skeleton, which is manifested as the
ﬂ ow point of the viscoelastic system, and by the viscosity
of the suspension formed by the dispersion medium and
remnants of the structural skeleton disintegrated in the
course of deformation and ﬂ ow .
We evaluated the inﬂ uence exerted by metal oxides
deposited on the surface of the carbon constituent on the
structuring of carbon particles in an oligomer medium.
The results we obtained enable prognostication of the
effect of the main technological parameters on how
continuous structures are formed by carbon particles
coated with nanosize layers of metal oxide within the
To study the effect of metal oxides on the structuring
of carbon nanoparticles in an oligomer medium, we
chose the method based on determining the elastic and