Journal
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Volume 39, Issue 1, Pages 949-957Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.proci.2022.08.002
Keywords
Small angle X-ray scattering; Spray flame synthesis; In situ; Particle formation; Fractal structures
Ask authors/readers for more resources
A sophisticated technique using small angle X-ray scattering (SAXS) was developed to investigate the particle formation mechanism of zirconia nanoparticles in a turbulent spray flame. The measurements revealed a significant dependence of scattering intensity as a function of height above the burner. Detailed analysis of the SAXS data and comparison with TEM images provided insights into primary particle growth, fractal properties, and aggregation process.
The particle formation in spray flame synthesis (SFS) is a fast and complex process involving many sub-steps that may happen simultaneously. To investigate the mechanisms that typically lead to small aggregated primary particles, a sophisticated technique for in situ measurements in the flame is necessary to provide information about primary particles and the aggregates as well. This work describes the development of an in situ measurement setup using small angle X-ray scattering (SAXS) to investigate the entire particle formation mechanism of zirconia nanoparticles in and above a turbulent spray flame. In preparation for the in situ measurements, a beamline for single crystal diffractometry at Karlsruhe Research Accelerator (KARA) was adapted for low scattering SAXS experiments including optimizations of the optics and measurement protocol. As a result, a significant dependence of scattering intensity was detected as a function of the height above the burner. A detailed analysis of the SAXS data and comparison with TEM images allow insights into the primary particle growth, the development of fractal properties and the aggregation process. (c) 2022 The Combustion Institute. Published by Elsevier Inc. All rights reserved.
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