Atmospheric lifetimes and global warming potentials of atmospherically T...

Bernard, F., D. K. Papanastasiou, R. W. Portmann, V. C. Papadimitriou, and J. Burkholder (2020), Atmospheric lifetimes and global warming potentials of atmospherically T persistent N(CxF2x+1)3, x = 2–4, perfluoroamines, Chemical Physics Letters, 744, 137089, doi:10.1016/j.cplett.2020.137089.
Abstract: 

Laboratory studies of the gas-phase O(1D) reaction and UV photolysis for N(CxF2x+1)3, x = 2–4, and an evaluation of their atmospheric lifetimes and global warming potentials (GWPs) is reported. The O(1D) + PFA reactive rate coefficient was measured to be (10−12 cm3 molecule−1 s−1) 1.10 ± 0.10, 1.36 ± 0.10, and 1.69 ± 0.11 and the UV photodissociation yield, ( ) × ( ) , at 193 nm was measured to be (10−23 cm2 molecule−1) 1.37, < 1, < 15 for N(C2F5)3, N(C3F7)3, and N(C4F9)3, respectively. Including estimated Lyman-α photolysis leads to total global atmospheric lifetimes of > 3000 years. GWPs on the 100-year time-horizon are estimated to be 9900, 8700, and 7800 for N(C2F5)3, N(C3F7)3, and N(C4F9)3, respectively.

PDF of Publication: 
Download from publisher's website.
Research Program: 
Atmospheric Composition