Heterogeneous Kinetics and Soot Chemistry

There is a significant amount of uncertainty in the radiative forcing of black carbon (soot) on the environment. This is primarily due to its indirect effects. Several important pieces of information, with regards to particle surface chemistry, are currently unknown and elucidate a complete quantitative assessment. Its heterogeneous processing in the atmosphere is highly dependent upon the surface chemistry and, thus, plays a key role in properly assessing soot s radiative forcing. Many previous heterogeneous reaction experiments with soot have inherent reactor design flaws (diffusion) and are conducted at atmospherically peripheral conditions. Thus, a novel reactor, particle on substrate stagnation flow reactor, was developed to circumvent these problems. Chemical characterization of soot particles produced and sampled using well-controlled methods addresses other problems in prior studies and aids in further understanding soot formation and growth.

Autorentext

Jeremy Cain is currently an NRC postdoctoral associate at the Air Force Research Laboratory. He studied under Professor Hai Wang at the University of Southern California, and worked with Dr. Alexander Laskin (EMSL) throughout his graduate studies. His research interests include heterogeneous kinetics, soot chemistry and global climate change.