Morphological characterization of the early process of soot formation by atomic force microscopy

Atomic Force Microscopy (AFM) has been used for the characterization of nanometric particles produced in rich flames. Very small particles (about 2 nm) have been found in pre-inception region of soot forming premixed flames, whereas both small nanoparticles as well as large soot particles have been...

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Bibliographic Details
Published inCombustion and flame Vol. 132; no. 1; pp. 181 - 187
Main Authors Barone, A.C., D’Alessio, A., D’Anna, A.
Format Journal Article
LanguageEnglish
Published New York, NY Elsevier Inc 2003
Elsevier Science
Subjects
Applied sciences
Atomic force microscopy
Combustion of gaseous fuels
Combustion. Flame
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Nanoparticles
Soot precursors
Theoretical studies. Data and constants. Metering
Nanoparticles
Atomic force microscopy
Soot precursors
Measurement
Particle size distribution
Nanoparticle
Soot
Ethylene
Premixed flame
Combustion
Sampling
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Summary:Atomic Force Microscopy (AFM) has been used for the characterization of nanometric particles produced in rich flames. Very small particles (about 2 nm) have been found in pre-inception region of soot forming premixed flames, whereas both small nanoparticles as well as large soot particles have been found in the soot region of the flames. The smaller particles are very flat in shape if compared with the bigger ones, and this probably depends upon the different nature of the collected particles. Particle size distribution functions are reported for different sampling conditions. The results of AFM measurements are in good agreement with previous measurements performed with ultraviolet (UV) light scattering/extinction technique on the same flames.
ISSN:0010-2180
1556-2921
DOI:10.1016/S0010-2180(02)00434-0