The Morphology and Conductive Properties of Composite Material SiO2 – C
| Autor: | I. F. Myronyuk, V. I. Mandzyuk, V. M. Sachko, Yu. O. Kyluk |
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| Jazyk: | English<br />Ukrainian |
| Rok vydání: | 2015 |
| Předmět: | |
| Zdroj: | Фізика і хімія твердого тіла, Vol 16, Iss 4, Pp 700-705 (2015) |
| Druh dokumentu: | article |
| ISSN: | 1729-4428 2309-8589 |
| DOI: | 10.15330/pcss.16.4.700-705 |
| Popis: | 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. Keywords: composite material SiO2 – C, turbostratic structure, specific surface, pore size distribution, specific conductivity. |
| Databáze: | Directory of Open Access Journals |
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