Multiple-diffusion flame synthesis of pure anatase and carbon-coated titanium dioxide nanoparticles

Handle URI:
http://hdl.handle.net/10754/562926
Title:
Multiple-diffusion flame synthesis of pure anatase and carbon-coated titanium dioxide nanoparticles
Authors:
Memon, Nasir; Anjum, Dalaver H.; Chung, Suk-Ho ( 0000-0001-8782-312X )
Abstract:
A multi-element diffusion flame burner (MEDB) is useful in the study of flame synthesis of nanomaterials. Here, the growth of pure anatase and carbon-coated titanium dioxide (TiO2) using an MEDB is demonstrated. Hydrogen (H2), oxygen (O2), and argon (Ar) are utilized to establish the flame, whereas titanium tetraisopropoxide is used as the precursor for TiO2. The nanoparticles are characterized using high-resolution transmission electron microscopy, with elemental mapping (of C, O, and Ti), X-ray diffraction, Raman spectroscopy, and thermogravimetric analysis. The growth of pure anatase TiO2 nanoparticles occurs when Ar and H2 are used as the precursor carrier gas, while the growth of carbon-coated nanoparticles ensues when Ar and ethylene (C2H4) are used as the precursor carrier gas. A uniform coating of 3-5nm of carbon is observed around TiO2 particles. The growth of highly crystalline TiO2 nanoparticles is dependent on the gas flow rate of the precursor carrier and amorphous particles are observed at high flow rates. Carbon coating occurs only on crystalline nanoparticles, suggesting a possible growth mechanism of carbon-coated TiO2 nanoparticles. © 2013 The Combustion Institute.
KAUST Department:
Clean Combustion Research Center; Advanced Nanofabrication, Imaging and Characterization Core Lab; Physical Sciences and Engineering (PSE) Division; Mechanical Engineering Program; Core Labs; Combustion and Laser Diagnostics Laboratory
Publisher:
Elsevier BV
Journal:
Combustion and Flame
Issue Date:
Sep-2013
DOI:
10.1016/j.combustflame.2013.03.022
Type:
Article
ISSN:
00102180
Appears in Collections:
Articles; Advanced Nanofabrication, Imaging and Characterization Core Lab; Physical Sciences and Engineering (PSE) Division; Mechanical Engineering Program; Clean Combustion Research Center

Full metadata record

DC FieldValue Language
dc.contributor.authorMemon, Nasiren
dc.contributor.authorAnjum, Dalaver H.en
dc.contributor.authorChung, Suk-Hoen
dc.date.accessioned2015-08-03T11:15:46Zen
dc.date.available2015-08-03T11:15:46Zen
dc.date.issued2013-09en
dc.identifier.issn00102180en
dc.identifier.doi10.1016/j.combustflame.2013.03.022en
dc.identifier.urihttp://hdl.handle.net/10754/562926en
dc.description.abstractA multi-element diffusion flame burner (MEDB) is useful in the study of flame synthesis of nanomaterials. Here, the growth of pure anatase and carbon-coated titanium dioxide (TiO2) using an MEDB is demonstrated. Hydrogen (H2), oxygen (O2), and argon (Ar) are utilized to establish the flame, whereas titanium tetraisopropoxide is used as the precursor for TiO2. The nanoparticles are characterized using high-resolution transmission electron microscopy, with elemental mapping (of C, O, and Ti), X-ray diffraction, Raman spectroscopy, and thermogravimetric analysis. The growth of pure anatase TiO2 nanoparticles occurs when Ar and H2 are used as the precursor carrier gas, while the growth of carbon-coated nanoparticles ensues when Ar and ethylene (C2H4) are used as the precursor carrier gas. A uniform coating of 3-5nm of carbon is observed around TiO2 particles. The growth of highly crystalline TiO2 nanoparticles is dependent on the gas flow rate of the precursor carrier and amorphous particles are observed at high flow rates. Carbon coating occurs only on crystalline nanoparticles, suggesting a possible growth mechanism of carbon-coated TiO2 nanoparticles. © 2013 The Combustion Institute.en
dc.publisherElsevier BVen
dc.subjectCarbon-coatingen
dc.subjectFlame synthesisen
dc.subjectMultiple-diffusion flamesen
dc.subjectTitanium dioxideen
dc.titleMultiple-diffusion flame synthesis of pure anatase and carbon-coated titanium dioxide nanoparticlesen
dc.typeArticleen
dc.contributor.departmentClean Combustion Research Centeren
dc.contributor.departmentAdvanced Nanofabrication, Imaging and Characterization Core Laben
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentMechanical Engineering Programen
dc.contributor.departmentCore Labsen
dc.contributor.departmentCombustion and Laser Diagnostics Laboratoryen
dc.identifier.journalCombustion and Flameen
kaust.authorMemon, Nasiren
kaust.authorAnjum, Dalaver H.en
kaust.authorChung, Suk-Hoen
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