Structural analysis of soot agglomerates - Langmuir (ACS Publications)

Fractal Analysis of Flame-Synthesized Nanostructured Silica and Titania Powders .... Derivation of the Weibull distribution based on physical principl...
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Langmuir 1987, 3, 272-281

Structural Analysis of Soot Agglomerates? R. J. Samson,* G. W. Mulholland,*§ and J. W. Gentry* Department of Chemical and Nuclear Engineering, University of Maryland, College Park, Maryland 20742, and National Bureau of Standards, Gaithersburg, Maryland 20899 Received August 12, 1986. In Final Form: December 15, 1986 The structure of soot agglomerates formed by the combustion of acetylene in a coannular diffusion burner is studied. Structural data from electron micrographs were obtained by two methods, particle counting with the aid of stereopairs for small clusters and electronic digitization with high-resolution image processing, used for the larger agglomerates. Langevin dynamics computer simulations based on free molecular motion were performed as an aid to interpreting the experimental results. Small agglomerates (with overall size