Journal
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
Volume 17, Issue 1, Pages 680-685Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4cp04454a
Keywords
-
Funding
- Israel Science Foundation [1149/12]
- Israel Ministry of Energy and Water Resources [211-11-007/2011-7-10]
- Research Authority of The Open University of Israel [47324]
Ask authors/readers for more resources
In this work we have investigated the mechanism of nanoparticle synthesis in a low pressure, premixed, laminar flat flame of CH4-O-2, doped with iron pentacarbonyl using a combined quartz-crystal-microbalance- particle-mass-spectrometry apparatus. We have unambiguously demonstrated that the formation of nanoparticles in iron pentacarbonyl-doped flames occurs very early, in close proximity to the burner surface, prior to the flame front. This early rise of nanoparticle mass concentration is followed by a sharp drop in nanoparticle concentration at the high temperature flame front. This prompt'' nanoparticle generation is consistent with kinetic models describing iron cluster formation. The observation of this phenomenon in a quasi-one-dimensional premixed flat flame strengthens our previous findings and points out that the prompt'' nanoparticle formation is a general phenomenon, not limited to diffusion flames. It presents a challenge and a trigger for further development of the existing mechanisms for gas phase synthesis of iron oxide particles in flames.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available