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

Nasir K. Memon, Dalaver H. Anjum, Suk Ho Chung

Research output: Contribution to journalArticle

20 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)1848-1856
Number of pages9
JournalCombustion and Flame
Volume160
Issue number9
DOIs
Publication statusPublished - Sep 2013
Externally publishedYes

Fingerprint

Flame synthesis
diffusion flames
titanium oxides
anatase
Titanium dioxide
Carbon
Nanoparticles
nanoparticles
Argon
carbon
synthesis
argon
burners
Fuel burners
Chemical elements
flames
flow velocity
Gases
Flow rate
Crystalline materials

Keywords

  • Carbon-coating
  • Flame synthesis
  • Multiple-diffusion flames
  • Titanium dioxide

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Chemical Engineering(all)
  • Energy Engineering and Power Technology
  • Fuel Technology
  • Chemistry(all)

Cite this

Multiple-diffusion flame synthesis of pure anatase and carbon-coated titanium dioxide nanoparticles. / Memon, Nasir K.; Anjum, Dalaver H.; Chung, Suk Ho.

In: Combustion and Flame, Vol. 160, No. 9, 09.2013, p. 1848-1856.

Research output: Contribution to journalArticle

Memon, Nasir K. ; Anjum, Dalaver H. ; Chung, Suk Ho. / Multiple-diffusion flame synthesis of pure anatase and carbon-coated titanium dioxide nanoparticles. In: Combustion and Flame. 2013 ; Vol. 160, No. 9. pp. 1848-1856.
@article{6a7c006a42ea4afd8d4c4f87bfa92256,
title = "Multiple-diffusion flame synthesis of pure anatase and carbon-coated titanium dioxide nanoparticles",
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.",
keywords = "Carbon-coating, Flame synthesis, Multiple-diffusion flames, Titanium dioxide",
author = "Memon, {Nasir K.} and Anjum, {Dalaver H.} and Chung, {Suk Ho}",
year = "2013",
month = "9",
doi = "10.1016/j.combustflame.2013.03.022",
language = "English",
volume = "160",
pages = "1848--1856",
journal = "Combustion and Flame",
issn = "0010-2180",
publisher = "Elsevier Inc.",
number = "9",

}

TY - JOUR

T1 - Multiple-diffusion flame synthesis of pure anatase and carbon-coated titanium dioxide nanoparticles

AU - Memon, Nasir K.

AU - Anjum, Dalaver H.

AU - Chung, Suk Ho

PY - 2013/9

Y1 - 2013/9

N2 - 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.

AB - 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.

KW - Carbon-coating

KW - Flame synthesis

KW - Multiple-diffusion flames

KW - Titanium dioxide

UR - http://www.scopus.com/inward/record.url?scp=84879411432&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84879411432&partnerID=8YFLogxK

U2 - 10.1016/j.combustflame.2013.03.022

DO - 10.1016/j.combustflame.2013.03.022

M3 - Article

VL - 160

SP - 1848

EP - 1856

JO - Combustion and Flame

JF - Combustion and Flame

SN - 0010-2180

IS - 9

ER -