Curved wall-jet burner for synthesizing titania and silica nanoparticles

Handle URI:
http://hdl.handle.net/10754/566091
Title:
Curved wall-jet burner for synthesizing titania and silica nanoparticles
Authors:
Ismail, Mohamed ( 0000-0003-4078-288X ) ; Memon, Nasir; Mansour, Morkous S. ( 0000-0002-5002-1403 ) ; Anjum, Dalaver H.; Chung, Suk-Ho ( 0000-0001-8782-312X )
Abstract:
A novel curved wall-jet (CWJ) burner was designed for flame synthesis, by injecting precursors through a center tube and by supplying fuel/air mixtures as an annular-inward jet for rapid mixing of the precursors in the reaction zone. Titanium dioxide (TiO2) and silicon dioxide (SiO2) nanoparticles were produced in ethylene (C2H4)/air premixed flames using titanium tetraisopropoxide (TTIP) and hexamethyldisiloxane (HMDSO) as the precursors, respectively. Particle image velocimetry measurements confirmed that the precursors can be injected into the flames without appreciably affecting flow structure. The nanoparticles were characterized using X-ray diffraction, Raman spectroscopy, the Brunauer-Emmett-Teller (BET) method, and high-resolution transmission electron microscopy. In the case of TiO2, the phase of nanoparticles could be controlled by adjusting the equivalence ratio, while the particle size was dependent on the precursor loading rate and the flame temperature. The synthesized TiO2 nanoparticles exhibited high crystallinity and the anatase phase was dominant at high equivalence ratios (φ > 1.3). In the case of SiO2, the particle size could be controlled from 11 to 18 nm by adjusting the precursor loading rate. © 2014 The Combustion Institute. Published by Elsevier Inc. All rights reserved.
KAUST Department:
Clean Combustion Research Center; Mechanical Engineering Program; Core Labs; Physical Sciences and Engineering (PSE) Division; Combustion and Laser Diagnostics Laboratory
Publisher:
Elsevier BV
Journal:
Proceedings of the Combustion Institute
Issue Date:
2015
DOI:
10.1016/j.proci.2014.05.043
Type:
Article
ISSN:
1540-7489
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Mechanical Engineering Program; Clean Combustion Research Center

Full metadata record

DC FieldValue Language
dc.contributor.authorIsmail, Mohameden
dc.contributor.authorMemon, Nasiren
dc.contributor.authorMansour, Morkous S.en
dc.contributor.authorAnjum, Dalaver H.en
dc.contributor.authorChung, Suk-Hoen
dc.date.accessioned2015-08-12T09:27:53Zen
dc.date.available2015-08-12T09:27:53Zen
dc.date.issued2015en
dc.identifier.issn1540-7489en
dc.identifier.doi10.1016/j.proci.2014.05.043en
dc.identifier.urihttp://hdl.handle.net/10754/566091en
dc.description.abstractA novel curved wall-jet (CWJ) burner was designed for flame synthesis, by injecting precursors through a center tube and by supplying fuel/air mixtures as an annular-inward jet for rapid mixing of the precursors in the reaction zone. Titanium dioxide (TiO2) and silicon dioxide (SiO2) nanoparticles were produced in ethylene (C2H4)/air premixed flames using titanium tetraisopropoxide (TTIP) and hexamethyldisiloxane (HMDSO) as the precursors, respectively. Particle image velocimetry measurements confirmed that the precursors can be injected into the flames without appreciably affecting flow structure. The nanoparticles were characterized using X-ray diffraction, Raman spectroscopy, the Brunauer-Emmett-Teller (BET) method, and high-resolution transmission electron microscopy. In the case of TiO2, the phase of nanoparticles could be controlled by adjusting the equivalence ratio, while the particle size was dependent on the precursor loading rate and the flame temperature. The synthesized TiO2 nanoparticles exhibited high crystallinity and the anatase phase was dominant at high equivalence ratios (φ > 1.3). In the case of SiO2, the particle size could be controlled from 11 to 18 nm by adjusting the precursor loading rate. © 2014 The Combustion Institute. Published by Elsevier Inc. All rights reserved.en
dc.publisherElsevier BVen
dc.subjectCurved wall-jet burneren
dc.subjectFlame synthesisen
dc.subjectSilicon dioxideen
dc.subjectTitanium dioxideen
dc.titleCurved wall-jet burner for synthesizing titania and silica nanoparticlesen
dc.typeArticleen
dc.contributor.departmentClean Combustion Research Centeren
dc.contributor.departmentMechanical Engineering Programen
dc.contributor.departmentCore Labsen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentCombustion and Laser Diagnostics Laboratoryen
dc.identifier.journalProceedings of the Combustion Instituteen
dc.contributor.institutionHelwan Univ, Dept Mech Engn, Cairo, Egypten
kaust.authorIsmail, Mohameden
kaust.authorMemon, Nasiren
kaust.authorMansour, Morkous S.en
kaust.authorAnjum, Dalaver H.en
kaust.authorChung, Suk-Hoen
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