Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 26, issue 21
Articles | Volume 26, issue 21
https://doi.org/10.5194/acp-26-15831-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-26-15831-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 26, issue 21
Research article
 | 
11 Nov 2026
Research article |  | 11 Nov 2026

The synergy of morphology and mixing state on the absorption of coated black carbon soot

Johannes Heuser, Claudia Di Biagio, Jérôme Yon, Mathieu Cazaunau, Antonin Bergé, Edouard Pangui, Marco Zanatta, Laura Renzi, Angela Marinoni, Chenjie Yu, Servanne Chevaillier, Daniel Ferry, Paolo Laj, Michel Maillé, Paola Formenti, Benedicte Picquet-Varrault, and Jean-Francois Doussin

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Short summary
Large simulation chamber experiments were performed to investigate the impact of non-absorbing coating on the absorption of fractal BC-containing soot. Results show the strong and combined effect of morphological modifications and mixing state heterogeneity on BC absorption, both depending on the reaction dynamics of coating formation and ageing of the coated soot. The range of measured absorption cannot be captured by common model approximations, highlighting the need for new formalisms.
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