Influence of furnace temperature and residence time on configurations of carbon black

Monte Carlo simulation for morphology of nanoparticles and particle size distributions: comparison of the cluster–cluster aggregation model with the sectional method

“…This difference in shape categories is large on an actual aggregate shape, which is supported by TEM analysis for the carbon black produced by the thermal pyrolysis of benzene conducted by our research group (Ono et al 2012(Ono et al , 2013. In addition, while the ratio of linear and branched shapes for N ini = 5.5 9 10 12 cm -3 at 1 ms was larger than that of the case with N ini = 1.0 9 10 11 cm -3 at 20 ms, the perimeter fractal dimension was counter to the trend.…”

“…Branched and linear shapes are more complicated than spheroidal and ellipsoidal shapes, and branched is defined as the most complex aggregate shape. The aggregate shapes are classified into four categories according to the classification criterion (Ono et al 2012(Ono et al , 2013Shishido et al 2007) using three shape parameters-anisotropy (X), complexity (Y), and covered ratio (Z)-estimated according to Eqs. (13), (14), and (15), respectively.…”

Characteristics of particle-bound polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) in atmosphere used in carbon black feeding process at a tire manufacturing plant

“…All relevant studies have concluded that in pyrolytic systems, as well as in flame systems, PAHs are the precursors of carbon nuclei (Lahaye et al 1974;Lahaye and Ehrburger-Dolle 1994). Ono et al (2012) indicated that the main factors that control the configurations of carbon black are nucleation, surface growth, and the sintering of primary particles. Nucleation, which is influenced by high-molecular-weight PAHs, controls the shape of aggregates, while surface growth, which is affected by low-molecular-weight PAHs, contributes to the growth of primary particles.…”

Synthesis of stable anisotropic carbon particle aggregates covered by surface nano-graphitic sheets

“…To date, many researchers have http://dx.doi.org/10.1016/j.carbon.2015.02.067 0008-6223/Ó 2015 Elsevier Ltd. All rights reserved. studied the formation mechanism of carbon particles and their aggregates in flames [20][21][22][23][24] and in pyrolysis [25,26], dynamics in aerosols [27,28], and regulating factors of their morphology [29,30]. Carbon particles are present in large numbers of condensation of polycyclic aromatic hydrocarbons (PAHs).…”

“…Aggregation properties and the crystallinity of aggregates in a diffusion flame differ radically according to the flame height. The temperature, charge, concentration, and composition of hydrocarbons strongly affect the carbon particle formation [27,29,30].…”