Abstract
Differentially pumped X-ray photoelectron spectroscopy has been used to study the surface composition of sulfuric acid (H2SO4) and sulfuric acid/water mixtures in equilibrium with various atmospheric species. Nitric acid uptake in sulfuric acid solutions was observed below ≈ 220K. Compared to the theoretically predicted bulk composition, a significant enrichment of nitrogen was observed at the interface. The uptake of background water in sulfuric acid below 200 K was responsible for the reversible uptake of CO2, moderated through the formation of carbonic acid (H2CO3). For CH2O, Cl2, NO, and NO2, no observable surface species were observed over the temperature range studied (≈180−298 K).
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
