Russian Journal of Applied Chemistry, 2012, Vol. 85, No. 2, pp. 177−181.
Pleiades Publishing, Ltd., 2012.
Original Russian Text © G.A. Chiganova, D.A. Chul’myakova, L.E. Mordvinova, T.I. Petrova, 2012, published in Zhurnal Prikladnoi Khimii, 2012, Vol. 85,
No. 2, pp. 188−192.
AND INDUSTRIAL INORGANIC CHEMISTRY
A Nickel-Substituted Form of Nanodiamonds and Its Catalytic
Activity in Decomposition of Hydrogen Peroxide
G. A. Chiganova
, D. A. Chul’myakova
, L. E. Mordvinova
, and T. I. Petrova
Siberian Federal University, Krasnoyarsk, Russia
Department of Physics of Nanophase Materials, Krasnoyarsk Scientiﬁ c Center, Siberian Branch
of Russian Academy of Sciences, Krasnoyarsk, Russia
Received March 2, 2011
Abstract—Adsorption of nickel (II) ions with nanodiamonds obtained by the detonation synthesis was studied.
A nickel-substituted form of nanodiamonds was obtained. The catalytic activity exhibited by nickel ions (II) in
the form of the surface complexes with nanodiamond functional groups in decomposition of hydrogen peroxide
Chemical modiﬁ cation of solid surfaces is widely
used to impart them new properties and is especially ef-
fective for highly dispersed materials with large amount
of surface atoms. To these materials belong nanodia-
monds (NDs) obtained by the detonation of explosives
with negative oxygen balance. The modiﬁ cation of ND
surface was studied in a considerable number of works.
The main purpose of most of them was to obtain their
adsorption or catalytically active forms. The modiﬁ ed
NDs were used as a catalyst for CO oxidation to CO
for electrooxidation of hydrogen . The modiﬁ cation
was used to obtain sorbents of metal ions and organic
substances , medicine adsorbents , and sorbents of
organic compounds [4, 5]. Sorption-active modiﬁ ed NDs
are applicable to galvanic technology .
It was shown previously  that NDs obtained by
the detonation of an TNT / RDX alloy (ratio 2/3) in CO
atmosphere and subjected to thermal oxidation with air
oxygen in the presence of boric anhydride to remove
non-diamond carbon have surface composition, which
qualitatively and quantitatively and by the content of
strong-acid carboxyl groups (0.60 ± 0.02 mg-equiv g
for ND), which are responsible for the increase in their
ion-exchange properties, is close to oxidized carbons. In
comparison with oxidized carbons, HDs are characterized
by the higher oxidation resistance. Therefore, the study of
the possibility for applying NDs in those practical areas,
where oxidized carbons are applied and the high stability
of a material is required, is promising .
Oxidized carbons are widely used as metal sorbents
and their cation-substituted form is used as effective cata-
lysts in many industrial processes . By the example of
a number of the reactions, including hydrogen peroxide
decomposition, it was established that the catalytic activ-
ity of iron (III), nickel (II), and chromium (III) cations
in the form of their surface complexes with functional
groups of oxidized carbons increases [8, 9].
The ND samples possessing the catalytic activity
decomposition, a model reaction used for the
study of various catalysts , were obtained by the
modiﬁ cation of ND surface with iron (III) ions under the
conditions used for the modiﬁ cation of oxidized carbons
in  (dispersion of powder with an iron nitrate solution,
washing with acidiﬁ ed water to remove occluded solu-
tion, separation of the precipitate, and drying). However,
their catalytic effect virtually coincided with the results
of homogeneous catalysis with iron (III) cations, taken in
an amount equal to their content in the modiﬁ ed powders.
This is because a majority of iron ions exists in the dif-
fusion layer of counterions of the electric double layer
, i.e., the electrostatic interaction occurs between the
cations and COO
The type of the surface complexes can be changed