Reaction kinetics of (CF₃)₂CFCN with OH radicals as a function of temperature (278-358 K): A good replacement for greenhouse SF₆?

TY - JOUR

T1 - Reaction kinetics of (CF3)2CFCN with OH radicals as a function of temperature (278-358 K)

T2 - A good replacement for greenhouse SF6?

AU - Blázquez , Sergio

AU - Antiñolo, Maria

AU - Nielsen, Ole John

AU - Albaladejo, José

AU - Jiménez, Elena

PY - 2017

Y1 - 2017

N2 - In many industrial applications, (CF3)2CFCN has been suggested as SF6 substitute, which possess a global warming potential (GWP100-yr) of 23500 relative to CO2. The temperature dependence of the rate coefficient (kOH) for the OH + (CF3)2CFCN reaction is reported for the first time: kOH(278–358 K) = (5.9 ± 3.2) × 10−13exp{−(1856 ± 162)/T} cm3 molecule−1 s−1. A lifetime of 47 years was estimated relative to that of CH3CCl3. Infrared absorption cross sections were also determined to derive the radiative efficiency (0.28 W m−2 ppbv−1). A GWP100-yr of 3646 was estimated, resulting in a significant reduction of the contribution to global warming if SF6 was replaced by (CF3)2CFCN.

AB - In many industrial applications, (CF3)2CFCN has been suggested as SF6 substitute, which possess a global warming potential (GWP100-yr) of 23500 relative to CO2. The temperature dependence of the rate coefficient (kOH) for the OH + (CF3)2CFCN reaction is reported for the first time: kOH(278–358 K) = (5.9 ± 3.2) × 10−13exp{−(1856 ± 162)/T} cm3 molecule−1 s−1. A lifetime of 47 years was estimated relative to that of CH3CCl3. Infrared absorption cross sections were also determined to derive the radiative efficiency (0.28 W m−2 ppbv−1). A GWP100-yr of 3646 was estimated, resulting in a significant reduction of the contribution to global warming if SF6 was replaced by (CF3)2CFCN.

U2 - 10.1016/j.cplett.2017.09.039

DO - 10.1016/j.cplett.2017.09.039

M3 - Journal article

SN - 0009-2614

VL - 687

SP - 297

EP - 302

JO - Chemical Physics Letters

JF - Chemical Physics Letters

ER -