Articles | Volume 22, issue 3
https://doi.org/10.5194/acp-22-1951-2022
https://doi.org/10.5194/acp-22-1951-2022
Research article
 | 
11 Feb 2022
Research article |  | 11 Feb 2022

Pyruvic acid, an efficient catalyst in SO3 hydrolysis and effective clustering agent in sulfuric-acid-based new particle formation

Narcisse Tsona Tchinda​​​​​​​, Lin Du, Ling Liu, and Xiuhui Zhang

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Short summary
This study explores the effect of pyruvic acid (PA) both in the SO3 hydrolysis and in sulfuric-acid-based aerosol formation. Results show that in dry and polluted areas, PA-catalyzed SO3 hydrolysis is about 2 orders of magnitude more efficient at forming sulfuric acid than the water-catalyzed reaction. Moreover, PA can effectively enhance the ternary SA-PA-NH3 particle formation rate by up to 4.7×102 relative to the binary SA-NH3 particle formation rate at cold temperatures.
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