Journal
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
Volume 87, Issue 1, Pages 143-156Publisher
JOHN WILEY & SONS INC
DOI: 10.1002/cjce.20137
Keywords
gas-phase combustion; silica; nanoparticle; thermodynamics; particle dynamics; hydrodynamics
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Funding
- National Natural Science Foundation of China [20876100, 20736004]
- National Basic Research Program of China [2009CB219904]
- State Education Ministry (SRF for ROCS, SEM)
- Key Laboratory of Multiphase Reaction of the Chinese Academy of Science [. 2003-5]
- Key Laboratory of Organic Synthesis of Jiangsu Prov.,
- Chemical Experiment Center of Soochow University
- R&D Foundation of Nanjing Medical University [NY0586]
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Using silicon tetrachloride as a precursor, the silica nanoparticles (NPs) were synthesized in the diffusion flame of air and liquid petrol gas (LPG). Different effects on flame shape and temperature, silicon tetrachloride conversion, major gas-phase compositions, and diameter of silica NPs were obtained via thermodynamic, hydrodynamic, or particle-dynamic approaches, The Size Of Silica NPs decreased with the increasing air-flow rate, increased with the increasing LPG flow rate, and increased obviously with the increasing evaporator temperature, The size of the synthesized silica NPs is about 25 30 nm at an optimal condition.
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