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Chemical reaction pathways of soot inception

Determine the exact chemical reaction pathways that lead to soot particle inception from gas-phase precursors, clarifying the sequence of reactions that initiate particle formation.

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Background

Among the stages of soot formation, inception is singled out as the least understood, with ambiguity about which reactions convert gas-phase species into condensed incipient particles.

Resolving the inception pathways is essential for predictive soot models and for interpreting simulations that observe ring formation and structural reorganization during early growth.

References

The inception of soot particles is arguably the least understood phenomenon among these processes and the exact chemical reaction pathways of soot inception are not completely known yet.

— Internal structure of incipient soot from acetylene pyrolysis obtained via molecular dynamics simulations (2402.06456 - Mukut et al., 9 Feb 2024) in Section 1 (Introduction)