III International Conference

PP-I-8ONE-DIMENSIONAL AND THREE-DIMENSIONAL CONDUCTIVITY ATAMORPHOUS CARBON MATERIALSBarnakov Ch., Romanenko A. 1 , Kozlov A., Seit-Ablaeva S. 2 , Vasenin N. 3 ,Anufrienko V. 3 , Ismagilov Z. 3Institute of Coal and Coal Chemistry SB RAS, Kemerovo, Russia1 Institute of Inorganic Chemistry SB RAS, Novosibirsk, Russia2 Kemerovo Technological Institute of Food Industry, Kemerovo, Russia3 Boreskov Institute of Catalysis SB RAS, Novosibirsk, RussiaE-mail: han@kemnet.ruIn this paper we report on properties of nitrogen containing carbon materials exhibitingone-dimensional conductivity, prepared from a mixture of o-nitroaniline and 1,2,3-benzotriazol. For samples with small number of current carriers and one-dimensionalconductivity EPR spectra were observed As the number of current carriers increased, withone-dimensional conductivity still retained, the EPR spectra widened. Validation of theassumption that EPR spectra of amorphous carbon materials are due to undercondensedcarbon systems (e.g.coke-type) is given.In previous works [1, 2] it was shown that samples of amorphous carbon materials(ACM-1, ACM-2, ACM-3) synthesized on the base of phenol and 1,2,3-benzotriazol mixturecan have both one-dimensional and three-dimensional conductivity. Conductivity typedepends on temperature and time carbonization. It was established that ACM-1 sample hasthree-dimensional conductivity and has no EPR spectra. For ACM-2 and ACM-3 samplessymmetric EPR spectra g = g e and one-dimensional conductivity of a carbon materials areobserved. It was revealed that after pumping out EPR spectra of these two samples do notshow correlation with Curie law appropriate to isolated or weak-interactive paramagneticcentres: at decreasing of measurements temperature the integrated intensity not only does notgrow but decreases appreciably.Synthesis of ACM-4 − ACM-6 samples was carried out with the same technique [1, 3]but with using of other precursors. The nitroaniline and 1,2,3-benzotriazol mixture was usedas the precursor for ACM-4 sample. ACM-5 sample was received as a result of thermaltreatment of ACM-4. ACM-6 sample was prepared on the basis of 8-oxyquinoline and 1,2,3-benzotriazol mixture.20