A Caltech Library Service

Fast peroxymonocarbonate formation on aqueous aerosols

Gu, Alan Yalun and Hoffmann, Michael Robert (2021) Fast peroxymonocarbonate formation on aqueous aerosols. In: 262nd ACS National Meeting & Exposition, 22-26 August 2021, Atlanta, GA.

Full text is not posted in this repository. Consult Related URLs below.

Use this Persistent URL to link to this item:


Peroxymonocarbonate (HCO₄-) is a reactive oxygen species previously studied in chem. manufg. and water detoxification. However, its role in atm. chem. remains largely unexplored despite its high oxidative potential via oxygen-atom transfer reactions (E(HCO₄-/HCO₃-) = 1.8V) and the abundance of CO₂, H₂O and H₂O₂ in the atm. This work explores the formation of HCO₄- at the interface of an aq. H₂O₂ jet and an intersection stream of CO₂ gas in an online electrospray ionization mass spectrometry (o-ESI-MS) reacting for ~50 µs. The interfacial kinetics of HCO₄- formation is measured to be >10⁴ times faster than the bulk phase kinetics, possibly due to the incomplete hydrogen bonding network at the gas-liq. interface. Peroxymonocarbonate may play an important yet previously unexplored role in the oxidn. of atm. sulfides, (bi)sulfites and alkenes such as isoprene and pinene.

Item Type:Conference or Workshop Item (Paper)
Related URLs:
URLURL TypeDescription Website
Gu, Alan Yalun0000-0001-8095-3634
Hoffmann, Michael Robert0000-0001-6495-1946
Additional Information:© 2021 American Chemical Society.
Record Number:CaltechAUTHORS:20211215-160724797
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:112459
Deposited By: Tony Diaz
Deposited On:17 Dec 2021 18:18
Last Modified:17 Dec 2021 18:18

Repository Staff Only: item control page