Articles | Volume 22, issue 9
https://doi.org/10.5194/acp-22-6103-2022
https://doi.org/10.5194/acp-22-6103-2022
Research article
 | 
10 May 2022
Research article |  | 10 May 2022

Molecular-level nucleation mechanism of iodic acid and methanesulfonic acid

An Ning, Ling Liu, Lin Ji, and Xiuhui Zhang

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Cited articles

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Baccarini, A., Karlsson, L., Dommen, J., Duplessis, P., Vüllers, J., Brooks, I. M., Saiz-Lopez, A., Salter, M., Tjernström, M., Baltensperger, U., Zieger, P., and Schmale, J.: Frequent new particle formation over the high Arctic pack ice by enhanced iodine emissions, Nat. Commun., 11, 4924, https://doi.org/10.1038/s41467-020-18551-0, 2020. 
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Short summary
Iodic acid (IA) and methanesulfonic acid (MSA) were previously proved to be significant nucleation precursors in marine areas. However, the nucleation process involved in IA and MSA remains unclear. We show the enhancement of MSA on IA cluster formation and reveal the IAM-SA nucleating mechanism using a theoretical approach. This study helps to understand the clustering process in which marine sulfur- and iodine-containing species are jointly involved and its impact on new particle formation.
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