Influence of cerium additive on the reduction behaviour of tungsten oxide under carbon monoxide atmosphere

Fairous Salleh, Tengku Shafazila Tengku Saharuddin, Alinda Samsuri, Rizafizah Othaman, Mohammad Wahab Mohammad Hisham, Mohd. Ambar Yarmo

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

Abstract

The reduction of pure WO3 and Ce/WO3 has been studied by using temperature programmed reduction (TPR) and X-ray diffraction (XRD) analysis. The reduction behavior were examined by non-isothermal reduction up to 900 ºC then continued with isothermal reduction at 900 ºC for 45 min under (40% v/v) carbon monoxide in nitrogen (CO in N2) atmosphere. The TPR results shows that reduction peak of Ce/WO3 were shifts to lower temperature as compared to the pure WO3. In addition, TPR results indicate that addition with Ce give better reducibility compared to pure WO3. Based on the characterization of the reduction products after hold 45 min using XRD, pure WO3 were completely converted to WO2 and W metal phases. While, after addition of Ce to the WO3, the reduction was enhanced to W phases and some sub oxide W5O14 and W3O5 with no WO2 phase remained and carbide observed. This is associated to the formation of alloy complex Ce2WO6 which gave remarkable effect to the reduction.

Original languageEnglish
Title of host publicationCurrent Material Research Using X-Rays and Related Techniques II
PublisherTrans Tech Publications Ltd
Pages389-393
Number of pages5
Volume888 MSF
ISBN (Print)9783035710298
DOIs
Publication statusPublished - 2017
EventInternational Conference on X-Rays and Related Techniques in Research and Industry, ICXRI 2016 - Putrajaya, Malaysia
Duration: 17 Aug 201618 Aug 2016

Publication series

NameMaterials Science Forum
Volume888 MSF
ISSN (Print)02555476

Other

OtherInternational Conference on X-Rays and Related Techniques in Research and Industry, ICXRI 2016
CountryMalaysia
CityPutrajaya
Period17/8/1618/8/16

Fingerprint

Cerium
tungsten oxides
Carbon Monoxide
cerium
Carbon monoxide
carbon monoxide
Tungsten
atmospheres
Oxides
tungsten oxide
Temperature
diffraction
carbides
X ray diffraction analysis
temperature
Carbides
x rays
Nitrogen
Metals

Keywords

  • Carbon monoxide
  • Ceria
  • TPR
  • Tungsten
  • Tungsten oxide
  • XRD

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Salleh, F., Tengku Saharuddin, T. S., Samsuri, A., Othaman, R., Mohammad Hisham, M. W., & Yarmo, M. A. (2017). Influence of cerium additive on the reduction behaviour of tungsten oxide under carbon monoxide atmosphere. In Current Material Research Using X-Rays and Related Techniques II (Vol. 888 MSF, pp. 389-393). (Materials Science Forum; Vol. 888 MSF). Trans Tech Publications Ltd. https://doi.org/10.4028/www.scientific.net/MSF.888.389

Influence of cerium additive on the reduction behaviour of tungsten oxide under carbon monoxide atmosphere. / Salleh, Fairous; Tengku Saharuddin, Tengku Shafazila; Samsuri, Alinda; Othaman, Rizafizah; Mohammad Hisham, Mohammad Wahab; Yarmo, Mohd. Ambar.

Current Material Research Using X-Rays and Related Techniques II. Vol. 888 MSF Trans Tech Publications Ltd, 2017. p. 389-393 (Materials Science Forum; Vol. 888 MSF).

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

Salleh, F, Tengku Saharuddin, TS, Samsuri, A, Othaman, R, Mohammad Hisham, MW & Yarmo, MA 2017, Influence of cerium additive on the reduction behaviour of tungsten oxide under carbon monoxide atmosphere. in Current Material Research Using X-Rays and Related Techniques II. vol. 888 MSF, Materials Science Forum, vol. 888 MSF, Trans Tech Publications Ltd, pp. 389-393, International Conference on X-Rays and Related Techniques in Research and Industry, ICXRI 2016, Putrajaya, Malaysia, 17/8/16. https://doi.org/10.4028/www.scientific.net/MSF.888.389
Salleh F, Tengku Saharuddin TS, Samsuri A, Othaman R, Mohammad Hisham MW, Yarmo MA. Influence of cerium additive on the reduction behaviour of tungsten oxide under carbon monoxide atmosphere. In Current Material Research Using X-Rays and Related Techniques II. Vol. 888 MSF. Trans Tech Publications Ltd. 2017. p. 389-393. (Materials Science Forum). https://doi.org/10.4028/www.scientific.net/MSF.888.389
Salleh, Fairous ; Tengku Saharuddin, Tengku Shafazila ; Samsuri, Alinda ; Othaman, Rizafizah ; Mohammad Hisham, Mohammad Wahab ; Yarmo, Mohd. Ambar. / Influence of cerium additive on the reduction behaviour of tungsten oxide under carbon monoxide atmosphere. Current Material Research Using X-Rays and Related Techniques II. Vol. 888 MSF Trans Tech Publications Ltd, 2017. pp. 389-393 (Materials Science Forum).
@inproceedings{95aa6eae73764f5094d60a5b62e64d09,
title = "Influence of cerium additive on the reduction behaviour of tungsten oxide under carbon monoxide atmosphere",
abstract = "The reduction of pure WO3 and Ce/WO3 has been studied by using temperature programmed reduction (TPR) and X-ray diffraction (XRD) analysis. The reduction behavior were examined by non-isothermal reduction up to 900 ºC then continued with isothermal reduction at 900 ºC for 45 min under (40{\%} v/v) carbon monoxide in nitrogen (CO in N2) atmosphere. The TPR results shows that reduction peak of Ce/WO3 were shifts to lower temperature as compared to the pure WO3. In addition, TPR results indicate that addition with Ce give better reducibility compared to pure WO3. Based on the characterization of the reduction products after hold 45 min using XRD, pure WO3 were completely converted to WO2 and W metal phases. While, after addition of Ce to the WO3, the reduction was enhanced to W phases and some sub oxide W5O14 and W3O5 with no WO2 phase remained and carbide observed. This is associated to the formation of alloy complex Ce2WO6 which gave remarkable effect to the reduction.",
keywords = "Carbon monoxide, Ceria, TPR, Tungsten, Tungsten oxide, XRD",
author = "Fairous Salleh and {Tengku Saharuddin}, {Tengku Shafazila} and Alinda Samsuri and Rizafizah Othaman and {Mohammad Hisham}, {Mohammad Wahab} and Yarmo, {Mohd. Ambar}",
year = "2017",
doi = "10.4028/www.scientific.net/MSF.888.389",
language = "English",
isbn = "9783035710298",
volume = "888 MSF",
series = "Materials Science Forum",
publisher = "Trans Tech Publications Ltd",
pages = "389--393",
booktitle = "Current Material Research Using X-Rays and Related Techniques II",

}

TY - GEN

T1 - Influence of cerium additive on the reduction behaviour of tungsten oxide under carbon monoxide atmosphere

AU - Salleh, Fairous

AU - Tengku Saharuddin, Tengku Shafazila

AU - Samsuri, Alinda

AU - Othaman, Rizafizah

AU - Mohammad Hisham, Mohammad Wahab

AU - Yarmo, Mohd. Ambar

PY - 2017

Y1 - 2017

N2 - The reduction of pure WO3 and Ce/WO3 has been studied by using temperature programmed reduction (TPR) and X-ray diffraction (XRD) analysis. The reduction behavior were examined by non-isothermal reduction up to 900 ºC then continued with isothermal reduction at 900 ºC for 45 min under (40% v/v) carbon monoxide in nitrogen (CO in N2) atmosphere. The TPR results shows that reduction peak of Ce/WO3 were shifts to lower temperature as compared to the pure WO3. In addition, TPR results indicate that addition with Ce give better reducibility compared to pure WO3. Based on the characterization of the reduction products after hold 45 min using XRD, pure WO3 were completely converted to WO2 and W metal phases. While, after addition of Ce to the WO3, the reduction was enhanced to W phases and some sub oxide W5O14 and W3O5 with no WO2 phase remained and carbide observed. This is associated to the formation of alloy complex Ce2WO6 which gave remarkable effect to the reduction.

AB - The reduction of pure WO3 and Ce/WO3 has been studied by using temperature programmed reduction (TPR) and X-ray diffraction (XRD) analysis. The reduction behavior were examined by non-isothermal reduction up to 900 ºC then continued with isothermal reduction at 900 ºC for 45 min under (40% v/v) carbon monoxide in nitrogen (CO in N2) atmosphere. The TPR results shows that reduction peak of Ce/WO3 were shifts to lower temperature as compared to the pure WO3. In addition, TPR results indicate that addition with Ce give better reducibility compared to pure WO3. Based on the characterization of the reduction products after hold 45 min using XRD, pure WO3 were completely converted to WO2 and W metal phases. While, after addition of Ce to the WO3, the reduction was enhanced to W phases and some sub oxide W5O14 and W3O5 with no WO2 phase remained and carbide observed. This is associated to the formation of alloy complex Ce2WO6 which gave remarkable effect to the reduction.

KW - Carbon monoxide

KW - Ceria

KW - TPR

KW - Tungsten

KW - Tungsten oxide

KW - XRD

UR - http://www.scopus.com/inward/record.url?scp=85014897459&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85014897459&partnerID=8YFLogxK

U2 - 10.4028/www.scientific.net/MSF.888.389

DO - 10.4028/www.scientific.net/MSF.888.389

M3 - Conference contribution

AN - SCOPUS:85014897459

SN - 9783035710298

VL - 888 MSF

T3 - Materials Science Forum

SP - 389

EP - 393

BT - Current Material Research Using X-Rays and Related Techniques II

PB - Trans Tech Publications Ltd

ER -