The Physical–Chemical Model of Nanoscaled Metal Component Formation …
275
3 Conclusion
The generalized physical–chemical model of the process of the nanoscaled metal
phase formation on the surface of graphite materials has been developed. This model
allows to describing each stage of these processes under the conditions of different
types of graphite materials, different salt, and different regimes of each stage.
The mean size of oxide particles forming on graphite surface due to salt thermolysis has been estimated within the framework of this model. This size was shown to
be determined by three factors: the topology of graphite material surface, the properties of salt, and the thermodynamic parameters of thermolysis reaction. The most
important factor determining salt thermolysis and characteristics of the final products
is the temperature of the reaction.
The comparative analysis of the structure and phase composition of graphite-metal
nanocomposites prepared under different temperature-temporal conditions showed
the thermolysis decomposition of salt on the surface of graphite supporter being
complex multistage process. The duration of each stage and characteristics of the
final product are determined by the simultaneous action of series of factors: the type
of graphite material, the state of its surface, the type of salt, and the thermodynamic
kinetic conditions of reactions. The desirable size, homogeneity, and uniformity of
distribution of the final product could be obtained by the variation of these parameters.
References
1. Borovij MO, Kunic’kij YUA, Kalenyk OO, Ovsienko IV, Tsaregradskaya TL (2015)
Nanomaterali, nanotekhnolog|, nanopristro|. Interservs, Ki|v, p 350
2. Matsui LY, Vovchenko LL, Ovsiienko IV, Tsaregradskaya TL, Saenko GV (2019) Springer Proc
Phys 221:333–348
3. Shpak AP, Lysov VI, Kunitskij YuA, Tzaregradska TL (2002) Crystallization and amorphization
of metallic systems. Akademperiodika, Kyiv, p 207
4. Matsuy LYu, Ovsiienko IV, Fedorov VE (2006) Modeling of the formation processes of
nanocomposite material “graphite-metal” oxide. Metallofiz Noveishie Tekhnol 28(4):521–533
275
3 Conclusion
The generalized physical–chemical model of the process of the nanoscaled metal
phase formation on the surface of graphite materials has been developed. This model
allows to describing each stage of these processes under the conditions of different
types of graphite materials, different salt, and different regimes of each stage.
The mean size of oxide particles forming on graphite surface due to salt thermolysis has been estimated within the framework of this model. This size was shown to
be determined by three factors: the topology of graphite material surface, the properties of salt, and the thermodynamic parameters of thermolysis reaction. The most
important factor determining salt thermolysis and characteristics of the final products
is the temperature of the reaction.
The comparative analysis of the structure and phase composition of graphite-metal
nanocomposites prepared under different temperature-temporal conditions showed
the thermolysis decomposition of salt on the surface of graphite supporter being
complex multistage process. The duration of each stage and characteristics of the
final product are determined by the simultaneous action of series of factors: the type
of graphite material, the state of its surface, the type of salt, and the thermodynamic
kinetic conditions of reactions. The desirable size, homogeneity, and uniformity of
distribution of the final product could be obtained by the variation of these parameters.
References
1. Borovij MO, Kunic’kij YUA, Kalenyk OO, Ovsienko IV, Tsaregradskaya TL (2015)
Nanomaterali, nanotekhnolog|, nanopristro|. Interservs, Ki|v, p 350
2. Matsui LY, Vovchenko LL, Ovsiienko IV, Tsaregradskaya TL, Saenko GV (2019) Springer Proc
Phys 221:333–348
3. Shpak AP, Lysov VI, Kunitskij YuA, Tzaregradska TL (2002) Crystallization and amorphization
of metallic systems. Akademperiodika, Kyiv, p 207
4. Matsuy LYu, Ovsiienko IV, Fedorov VE (2006) Modeling of the formation processes of
nanocomposite material “graphite-metal” oxide. Metallofiz Noveishie Tekhnol 28(4):521–533