Bimolecular sinks of Criegee intermediates derived from hydrofluoroolefins – a computational analysis

Author:

Watson Nathan A. I.12ORCID,Beames Joseph M.13ORCID

Affiliation:

1. School of Chemistry, Main Building, Cardiff University, Cardiff, CF10 3AT, UK

2. Department of Earth and Environmental Sciences, Simon Building, University of Manchester, Manchester, M13 9PS, UK

3. School of Chemistry, Main Building, Edgbaston, Birmingham, B15 2TT, UK

Abstract

When haloalkene refrigerants break down, this study shows that the resultant halogenated Criegee intermediates have an enhanced capacity to deplete many gaseous pollutants (e.g. HCHO & SO2) but also produce atmospheric contaminants (e.g. SO3 & TFA).

Funder

NERC Biomolecular Analysis Facility

Publisher

Royal Society of Chemistry (RSC)

Subject

Pollution,Environmental Chemistry,Chemistry (miscellaneous),Analytical Chemistry

Reference198 articles.

1. O. US EPA, Refrigerant Transition & Environmental Impacts, https://www.epa.gov/mvac/refrigerant-transition-environmental-impacts , accessed 9 January 2019

2. Fifth Assessment Report - Climate Change 2013, http://www.ipcc.ch/report/ar5/wg1/ , accessed 26 August 2018

3. First Observations of the Fourth Generation Synthetic Halocarbons HFC-1234yf, HFC-1234ze(E), and HCFC-1233zd(E) in the Atmosphere

4. Kinetics, mechanism, and global warming potentials of HFO-1234yf initiated by O3 molecules and NO3 radicals: insights from quantum study

5. Atmospheric degradation of HCFO-1233zd(E) initiated by OH radical, Cl atom and O3 molecule: Kinetics, reaction mechanisms and implications

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