SAXS investigation of nanoporous structure of thermal-modified carbon materials
1 Vasyl Stefanyk PreCarpathian National University, 57 Shevchenko Street, Ivano-Frankivsk 76018, Ukraine
2 Ivan Franko National University, 8 Kyrylo and Mefodiy Street, Lviv 79005, Ukraine
Nanoscale Research Letters 2014, 9:160 doi:10.1186/1556-276X-9-160Published: 3 April 2014
The article investigates the effect of thermal modification of porous carbon material (PCM), obtained from plant feedstock, on its morphology and fractal structure by small-angle X-ray scattering (SAXS) method. The analysis of the scattering intensity curves serve the basis for calculating the parameters of the PCM porous structure: the Porod constant, the Porod invariant, average pore radius, specific surface area, and mass and surface fractal dimensions. It has been found out that the PCMs obtained have fractal structure, formed from mass and surface fractals, the sizes of which increase at the growth of temperature and modification time.
81.05.Uw; 61.05.cf; 82.47.Aa