Uptake of Hydrogen Bonding Molecules by Benzene Nanoparticles.

ABSTRACT: The uptake of molecules on nanometer-size clusters of polyaromatic hydrocarbons (PAHs) is important for the condensation of water on PAH aerosols in the atmosphere and for ice mantle growth on nanoparticles in the interstellar medium. We generate benzene clusters Bz_N of mean size N̅ ≈ 300 (radius R̅ ≈ 2.2 Å) as a model system for the PAH nanoparticles. Using molecular beams and mass spectrometry detection, we investigate the uptake of water, methanol, and ethanol by these clusters. All picked up molecules are highly mobile on Bz_N and generate clusters within <3 ms. The relative uptakes for the different investigated molecules can be directly compared and quantified. Water molecules exhibit the lowest relative pickup probability that is ∼30%

SUBMITTER: Vinklarek IS 

PROVIDER: S-EPMC9082588 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature