Research output: Contribution to journal › Article › peer-review
The Influence of Nonlinear Carbon Synthesis Reactions on the Nucleation of Pores in Carbon Nanomaterials. / Gordeev, S. K.; Guzenko, P. Yu; Kukushkin, S. A.; Osipov, A. V.; Fradkov, A. L.
In: Russian Journal of Physical Chemistry A, Vol. 77, No. 10, 10.2003, p. 1670-1672.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - The Influence of Nonlinear Carbon Synthesis Reactions on the Nucleation of Pores in Carbon Nanomaterials
AU - Gordeev, S. K.
AU - Guzenko, P. Yu
AU - Kukushkin, S. A.
AU - Osipov, A. V.
AU - Fradkov, A. L.
PY - 2003/10
Y1 - 2003/10
N2 - A new mechanism of formation of nanopores in carbon materials is suggested. According to this mechanism, the formation of carbon from carbides under certain conditions is accompanied by the self-organization of reaction products. The restructuring of the carbon crystal lattice then occurs with a certain period in space determined by the kinetics of the carbon synthesis reaction, which initiates the generation of vacancies, also periodic in space. In a certain time interval, the gas of vacancies becomes supersaturated, and the nucleation of pores begins and eventually results in a porous carbon structure. The intensity of space-periodic vacancy generation substantially depends on the time of chlorine action on crystalline carbide grains. This dependence is universal in character and has three maxima. The nucleation of pores occurs at the instants of time corresponding to these maxima. The optimal size of pores of the best structure was estimated at 5 × 10-4 m.
AB - A new mechanism of formation of nanopores in carbon materials is suggested. According to this mechanism, the formation of carbon from carbides under certain conditions is accompanied by the self-organization of reaction products. The restructuring of the carbon crystal lattice then occurs with a certain period in space determined by the kinetics of the carbon synthesis reaction, which initiates the generation of vacancies, also periodic in space. In a certain time interval, the gas of vacancies becomes supersaturated, and the nucleation of pores begins and eventually results in a porous carbon structure. The intensity of space-periodic vacancy generation substantially depends on the time of chlorine action on crystalline carbide grains. This dependence is universal in character and has three maxima. The nucleation of pores occurs at the instants of time corresponding to these maxima. The optimal size of pores of the best structure was estimated at 5 × 10-4 m.
UR - http://www.scopus.com/inward/record.url?scp=0242606103&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0242606103
VL - 77
SP - 1670
EP - 1672
JO - Russian Journal of Physical Chemistry A
JF - Russian Journal of Physical Chemistry A
SN - 0036-0244
IS - 10
ER -
ID: 88357142