Fast fragmentation of metal oxide nanoparticles via reduction in oxyhydrogen flame
SCIE
SCOPUS
- Title
- Fast fragmentation of metal oxide nanoparticles via reduction in oxyhydrogen flame
- Authors
- Park, Jae-Hoon
- Date Issued
- 2007-04-16
- Publisher
- AMER INST PHYSICS
- Abstract
- Fast fragmentation of 20 nm iron oxide and 60 nm tin oxide nanoparticles into a few nanometer nanoparticles in a diffusion oxyhydrogen flame is reported. The phenomenon is explained by the in situ reduction of generated 20-60 nm nanoparticles. The fragmentation occurs due to reduction induced instability in the oxygen-deficient surface. Simulated experiments with electron irradiation and characterization with x-ray absorption spectroscopy substantiated this mechanism. This finding may open a route to continuously generate a few nanometer scale nanoparticles of various oxides in a flame synthesis. (C) 2007 American Institute of Physics.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/9599
- DOI
- 10.1063/1.2724747
- ISSN
- 0003-6951
- Article Type
- Article
- Citation
- APPLIED PHYSICS LETTERS, vol. 90, no. 16, 2007-04-16
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