Enhancement of sulphuric acid-based new particle formation using 3-aminopropanamide: mechanistic, thermodynamic, and kinetic insights
Abstract
group that increases basicity and strengthens the hydrogen bonding interactions, thereby stabilizing the initial clusters, accounts for the unexpectedly high enhancement potential of APA compared to that of PA. Analysis of the effect of temperature on NPF shows that at low temperatures and an ambient APA concentration of 25 ppt, the formation rate becomes nearly constant at high sulphuric acid (SA) concentrations, indicating saturation. Additionally, the cluster formation rate is found to be sensitive to the relative humidity of the atmosphere. The NPF rate increases steadily with an increase in humidity until 20%, showing minimal variations thereafter. Our findings highlight the importance of the hitherto unexplored role of aminoamides, such as APA, in nucleation, suggesting their application potential as base precursors for NPF, especially in regions where they can be formed readily.
Fields of Study & Subjects
Coagulation and Flocculation Studies
Chemical Looping and Thermochemical Processes
Carbon Dioxide Capture Technologies
Publication details
- Journal / source
- Physical Chemistry Chemical Physics
- Publisher
- Royal Society of Chemistry (RSC)
- Volume
- 28
- Issue
- 9
- Pages
- 5784–5795
- Publication date
- 1 January 2026
- Language
- EN