Skip to Main content Skip to Navigation
Journal articles

An Atmospheric Origin for HCN-Derived Polymers on Titan

Abstract : Titan’s haze is strongly suspected to be an HCN-derived polymer, but despite the first in situ measurements by the ESA-Huygens space probe, its chemical composition and formation process remain largely unknown. To investigate this question, we simulated the atmospheric haze formation process, experimentally. We synthesized analogues of Titan’s haze, named Titan tholins, in an irradiated N2–CH4 gas mixture, mimicking Titan’s upper atmosphere chemistry. HCN was monitored in situ in the gas phase simultaneously with the formation and evolution of the haze particles. We show that HCN is produced as long as the particles are absent, and is then progressively consumed when the particles appear and grow. This work highlights HCN as an effective precursor of Titan’s haze and confirms the HCN-derived polymer nature of the haze.
Document type :
Journal articles
Complete list of metadata

https://hal-insu.archives-ouvertes.fr/insu-03250687
Contributor : Catherine Cardon <>
Submitted on : Friday, June 4, 2021 - 8:09:16 PM
Last modification on : Tuesday, July 20, 2021 - 3:06:59 AM
Long-term archiving on: : Sunday, September 5, 2021 - 9:05:50 PM

File

processes-09-00965.pdf
Publisher files allowed on an open archive

Licence


Distributed under a Creative Commons Attribution 4.0 International License

Identifiers

Citation

Zoé Perrin, Nathalie Carrasco, Audrey Chatain, Lora Jovanovic, Ludovic Vettier, et al.. An Atmospheric Origin for HCN-Derived Polymers on Titan. Processes, MDPI, 2021, 9, pp.965. ⟨10.3390/pr9060965⟩. ⟨insu-03250687⟩

Share

Metrics

Record views

139

Files downloads

86