2012 年 27 巻 2 号 p. 145-155
This work focuses mainly on the use of laboratory flames to study high temperature nanoparticle formation by hydrocarbon combustion. Particular attention is placed on incipient particles formed in high temperature combustion conditions, which may serve as condensation sites for volatile species as the exhaust plume cools. Several different measurement methods are used to determine the size and chemical composition of particles in situ in high temperature flames, on-line in diluted sample flows, and off-line on dispersions in water or other solvents or on particles deposited on filters or substrates as a sparse deposition or a thick layer. Consistent observations by a wide range of measurement methods has created a consensus in the combustion community that organic nanoparticles are formed in high temperature combustion reactions, in addition to soot. The relative properties of combustion-generated organic nanoparticles and soot are discussed.
