The Morphology and Conductive Properties of Composite Material SiO2 – C

I.F. Myronyuk; V.I. Mandzyuk; V.M. Sachko; Yu.O. Kyluk

doi:10.15330/pcss.16.4.700-705

Authors

I.F. Myronyuk Vasyl Stefanyk Precarpathian National University
V.I. Mandzyuk Vasyl Stefanyk Prekarpathian University
V.M. Sachko Vasyl Stefanyk Prekarpathian University
Yu.O. Kyluk Ivan Franko National University of Lviv

DOI:

https://doi.org/10.15330/pcss.16.4.700-705

Keywords:

composite material SiO2 – C, turbostratic structure, specific surface, pore size distribution, specific conductivity

Abstract

The article explores the structure, morphology and conductive properties of composite material SiO₂ – C using XRD, SAXS, low-temperature nitrogen adsorption, and impedance spectroscopy methods. It is set that SiO₂ – C composite obtained by thermolytic decomposition of D-lactose, previously chemisorbed on fumed silica nanoparticles surface, has an open porous structure, in which mesopores of 6-12 nm in size are dominate. At weight ratio SiO₂/C = 5/1 nanocrystallites of carbon phase in form of lamellar sheets of 0,4 × 0,4 × 5,0 nm³ in size contact with entire silica surface that results in composite material conductivity is 49 Оhm^-1·m^-1.

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