Catalytic oxidation of carbon using TiO2 based nanoparticles prepared using flame synthesis

Nasir K. Memon, Mohamed A. Ismail, Dalaver H. Anjum, Suk Ho Chung

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Titanium dioxide (TiO2) nanoparticles are used in numerous applications involving catalysis, photo-catalysis, water purification, electrode for Li-ion batteries, polymer fillers, and pigments. Multiple-diffusion flames are used to coat/dope the TiO2 nanoparticles with various elements such as carbon, vanadium, silicon, and iron. The use of multiple diffusion flames offers several key advantages, such as uniform temperature and chemical species profiles and many of the limitations related to premixed flames such as flashback and flame speed are avoided. Crystal phase and size of the TiO2 nanoparticles are determined using x-ray diffraction (XRD). The nanoparticles are further characterized using Raman spectroscopy, thermal gravimetric analysis (TGA), and Brunauer-Emmett-Teller (BET). The morphology and crystal structure of the samples are characterized using high-resolution transmission electron microscopy (HRTEM), with elemental mapping. With silicon precursors, the TiO2 nanoparticles are coated in a layer of silica, while for vanadium, the nanoparticles are doped with vanadium oxide. An iron based precursor results in the formation of iron-oxide alongside the TiO2 nanoparticles. Finally the iron based TiO2 nanoparticles significantly improve the catalytic oxidation of carbon, where complete oxidation of carbon occurs at a temperature of 470°C (with iron) compared to 610°C (without iron).

Original languageEnglish
Title of host publicationNSTI: Advanced Materials - TechConnect Briefs 2015
PublisherTaylor and Francis Inc.
Pages195-198
Number of pages4
Volume1
ISBN (Electronic)9781498747271
Publication statusPublished - 2015
Externally publishedYes
Event10th Annual TechConnect World Innovation Conference and Expo, Held Jointly with the 18th Annual Nanotech Conference and Expo, and the 2015 National SBIR/STTR Conference - Washington, United States
Duration: 14 Jun 201517 Jun 2015

Other

Other10th Annual TechConnect World Innovation Conference and Expo, Held Jointly with the 18th Annual Nanotech Conference and Expo, and the 2015 National SBIR/STTR Conference
CountryUnited States
CityWashington
Period14/6/1517/6/15

Fingerprint

Flame synthesis
Catalytic oxidation
Nanoparticles
Carbon
Iron
Vanadium
Silicon
Catalysis
Temperature
Raman Spectrum Analysis
Photocatalysis
Water Purification
Gravimetric analysis
High resolution transmission electron microscopy
Transmission Electron Microscopy
Iron oxides
Pigments
Chemical elements
Silicon Dioxide
Titanium dioxide

Keywords

  • Carbon oxidation
  • Flame synthesis
  • Multiple division flames
  • Titanium dioxide

ASJC Scopus subject areas

  • Surfaces, Coatings and Films
  • Fluid Flow and Transfer Processes
  • Biotechnology
  • Fuel Technology

Cite this

Memon, N. K., Ismail, M. A., Anjum, D. H., & Chung, S. H. (2015). Catalytic oxidation of carbon using TiO2 based nanoparticles prepared using flame synthesis. In NSTI: Advanced Materials - TechConnect Briefs 2015 (Vol. 1, pp. 195-198). Taylor and Francis Inc..

Catalytic oxidation of carbon using TiO2 based nanoparticles prepared using flame synthesis. / Memon, Nasir K.; Ismail, Mohamed A.; Anjum, Dalaver H.; Chung, Suk Ho.

NSTI: Advanced Materials - TechConnect Briefs 2015. Vol. 1 Taylor and Francis Inc., 2015. p. 195-198.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Memon, NK, Ismail, MA, Anjum, DH & Chung, SH 2015, Catalytic oxidation of carbon using TiO2 based nanoparticles prepared using flame synthesis. in NSTI: Advanced Materials - TechConnect Briefs 2015. vol. 1, Taylor and Francis Inc., pp. 195-198, 10th Annual TechConnect World Innovation Conference and Expo, Held Jointly with the 18th Annual Nanotech Conference and Expo, and the 2015 National SBIR/STTR Conference, Washington, United States, 14/6/15.
Memon NK, Ismail MA, Anjum DH, Chung SH. Catalytic oxidation of carbon using TiO2 based nanoparticles prepared using flame synthesis. In NSTI: Advanced Materials - TechConnect Briefs 2015. Vol. 1. Taylor and Francis Inc. 2015. p. 195-198
Memon, Nasir K. ; Ismail, Mohamed A. ; Anjum, Dalaver H. ; Chung, Suk Ho. / Catalytic oxidation of carbon using TiO2 based nanoparticles prepared using flame synthesis. NSTI: Advanced Materials - TechConnect Briefs 2015. Vol. 1 Taylor and Francis Inc., 2015. pp. 195-198
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