Dependence of heterogeneous nucleation of N-Butanol vapor on temperature and humidity for improved detection of nanoparticles

  • Christian Tauber (Contributor)
  • Sophia Brilke (Contributor)
  • Wlasits, P. J. (Contributor)
  • Paulus Bauer (Contributor)
  • Gerald Köberl (Contributor)
  • Gerhard Steiner (Contributor)
  • Winkler, P. (Contributor)

Activity: Talks and presentations › Poster presentation › Science to Science

Description

Heterogeneous nucleation is mediated by various physicochem-ical properties of the seed particle’s surface, i.e. charge state,wettability, solubility, shape and size (s. [1], [2]). Previous studieson NaCl seeds and mixtures of n-propanol and water report ade-creasing activation barrier (s. [3]).This study provides deeper insights into the dependence of hetero-geneous nucleation on the charge state, the nucleation temperatureand the relative humidity of the carrier gas. As a result fundamental mechanisms influencing the nucleation process can be linked to the change in the counting efficiencies of commercial Ultrafine Condensation Particle Counters (UCPCs).
Period6 Sept 2018
Event titleInternational Aerosol Conference 2018
Event typeConference
LocationSt. Louis, United StatesShow on map