Laser-Induced Ionization and Mobility Measurements of Very Small Particles in Premixed Flames at the Sooting Limit
- 1 July 1981
- journal article
- research article
- Published by Taylor & Francis in Combustion Science and Technology
- Vol. 26 (1-2) , 35-41
- https://doi.org/10.1080/00102208108946944
Abstract
Laser-induced ionization signals are observed in a premixed C2H2/air flame at the sooting limit and are attributed to thermal ionization of very small particles. The mobilities of these species are derived from ion velocity measurements and compared with the mobility of Na+ for identical flame conditions. From a series of measured mobilities, estimates are made for the particle mass (2300-6100 amu) and diameter (1.6-2.2 nm). This experimental method is thus a new optical means for probing the early stages of soot formation.Keywords
This publication has 7 references indexed in Scilit:
- Optical Studies of Soot‐Formation Processes in Premixed FlamesBerichte der Bunsengesellschaft für physikalische Chemie, 1980
- Sooting Structure in a Laminar Diffusion FlameBerichte der Bunsengesellschaft für physikalische Chemie, 1980
- Laser-Induced Fluorescence in Kerosene/Air and Gasoline/Air FlamesApplied Spectroscopy, 1980
- Charged Particles in Sooting Flames I. Determination of Mass Distributions and Number Densities in C2H2‐O2 FlamesBerichte der Bunsengesellschaft für physikalische Chemie, 1979
- Theory of plasma chromatography/gaseous electrophoresis. ReviewAnalytical Chemistry, 1975
- Qualitative studies of trace constituents by plasma chromatographyAnalytical Chemistry, 1971
- 418. Carbon formation in flamesJournal of the Chemical Society, 1950