Enhanced soot particle ice nucleation ability induced by aggregate compaction and densification

Abstract T T > 235  K (homogeneous nucleation temperature, HNT), but IN is observed for compacted and larger-sized soot aggregates (> 200  nm) well below the homogeneous freezing relative humidity (RHhom) for T <  HNT, demonstrating PCF as the dominating mechanism for soot IN. We also observed that mechanically compacted soot particles can reach a higher particle activation fraction (AF) value for the same T 2) physisorption measurements, as well as soot–water interaction results from DVS (dynamic vapor sorption) measurements. Considering the soot particle physical properties along with its IN activities, the enhanced IN abilities of compacted soot particles are attributed to decreasing mesopore width and increasing mesopore occurrence probability due to the compaction process.

Object Details

• Location: Deutsche Nationalbibliothek Frankfurt am Main
• Extent: Online-Ressource
• Language: Englisch

References and Relationships

• Bibliographic citation: Enhanced soot particle ice nucleation ability induced by aggregate compaction and densification ; volume:22 ; number:7 ; year:2022 ; pages:4985-5016 ; extent:32 ; Atmospheric chemistry and physics ; 22, Heft 7 (2022), 4985-5016 (gesamt 32)

Contributors, Places and Time

• Creator: Gao, Kunfeng ; Friebel, Franz ; Zhou, Chong-Wen ; Kanji, Zamin A.

Further information

• DOI: 10.5194/acp-22-4985-2022
• URN: urn:nbn:de:101:1-2022042105233488307559
• Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Last update: 15.08.2025, 7:32 AM CEST