Fig. 5: Proposed models of different types of soot particles.
From: Mechanism of the noncatalytic oxidation of soot using in situ transmission electron microscopy
a SCM of young soot particles. b IOM of partially matured soot particles. c CSM of partially matured soot particles. d SCM of mature soot particles. e, f The simplification approach divided or merged the soot aggregates (yellow) into multiple adjacent equivalent spheres (black). The radius and projected area of the equivalent sphere were used for calculation as new parameters instead of the radius and projected area of soot aggregates. g, h The conversion rate and reaction rate of different particles were obtained by various simplified models. The reaction rate of models varied with time, which resulted in a challenge in the selection of models during the oxidation of multiple particles. Source data are provided as a Source Data file.
