Study on the reduction behavior of molybdenum oxide (MoO3) in carbon monoxide (CO) atmosphere

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

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

1 Citation (Scopus)

Abstract

The reduction behavior of molybdenum trioxide (MoO3) by carbon monoxide (CO) has been studied using temperature programmed reduction (TPR) and was characterized using X-ray diffraction spectroscopy (XRD). The TPR result shows that the first reduction peak of MoO3 under 20 vol. % CO in nitrogen started at 530 °C and second reduction peaks observed was at 700 °C. The XRD technique was employed to identify the changes in the sample. It was found that after nonisothermal reduction up to 700 °C, the intermediate phases Mo4O11 were observed. Completed reduction to MoO2 achieved after continued reduction with isothermal mode at 700 °C for 60 minutes. Based on the XRD analysis, it is confirmed that the reduction of MoO3 to MoO2 in CO atmosphere consists of two reduction stages, i) Mo6+ → Mo5+ and ii) Mo5+ → Mo4+. While, CO excess have resulted the formation of molybdenum carbide (Mo2C) rather than formation of metallic molybdenum (Mo).

Original languageEnglish
Title of host publicationMaterials Science Forum
PublisherTrans Tech Publications Ltd
Pages299-304
Number of pages6
Volume840
ISBN (Print)9783038355373
DOIs
Publication statusPublished - 2016
EventSeminar on Advanced Materials haracterization Techniques in Research, Industry and Nuclear Applications, AMCT 2015 - Selangor, Malaysia
Duration: 9 Jun 201510 Jun 2015

Publication series

NameMaterials Science Forum
Volume840
ISSN (Print)02555476

Other

OtherSeminar on Advanced Materials haracterization Techniques in Research, Industry and Nuclear Applications, AMCT 2015
CountryMalaysia
CitySelangor
Period9/6/1510/6/15

Fingerprint

Molybdenum oxide
molybdenum oxides
Carbon Monoxide
Carbon monoxide
carbon monoxide
atmospheres
Molybdenum
Spectroscopy
X ray diffraction
molybdenum
molybdenum carbides
diffraction
molybdenum trioxide
spectroscopy
x rays
Carbides
Nitrogen

Keywords

  • Carbon monoxide
  • Molybdenum carbide
  • Molybdenum oxide

ASJC Scopus subject areas

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

Cite this

Samsuri, A., Tengku Saharuddin, T. S., Salleh, F., Othaman, R., Mohamed Hisham, M. W., & Yarmo, M. A. (2016). Study on the reduction behavior of molybdenum oxide (MoO3) in carbon monoxide (CO) atmosphere. In Materials Science Forum (Vol. 840, pp. 299-304). (Materials Science Forum; Vol. 840). Trans Tech Publications Ltd. https://doi.org/10.4028/www.scientific.net/MSF.840.299

Study on the reduction behavior of molybdenum oxide (MoO3) in carbon monoxide (CO) atmosphere. / Samsuri, Alinda; Tengku Saharuddin, Tengku Shafazila; Salleh, Fairous; Othaman, Rizafizah; Mohamed Hisham, Mohamed Wahab; Yarmo, Mohd. Ambar.

Materials Science Forum. Vol. 840 Trans Tech Publications Ltd, 2016. p. 299-304 (Materials Science Forum; Vol. 840).

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

Samsuri, A, Tengku Saharuddin, TS, Salleh, F, Othaman, R, Mohamed Hisham, MW & Yarmo, MA 2016, Study on the reduction behavior of molybdenum oxide (MoO3) in carbon monoxide (CO) atmosphere. in Materials Science Forum. vol. 840, Materials Science Forum, vol. 840, Trans Tech Publications Ltd, pp. 299-304, Seminar on Advanced Materials haracterization Techniques in Research, Industry and Nuclear Applications, AMCT 2015, Selangor, Malaysia, 9/6/15. https://doi.org/10.4028/www.scientific.net/MSF.840.299
Samsuri A, Tengku Saharuddin TS, Salleh F, Othaman R, Mohamed Hisham MW, Yarmo MA. Study on the reduction behavior of molybdenum oxide (MoO3) in carbon monoxide (CO) atmosphere. In Materials Science Forum. Vol. 840. Trans Tech Publications Ltd. 2016. p. 299-304. (Materials Science Forum). https://doi.org/10.4028/www.scientific.net/MSF.840.299
Samsuri, Alinda ; Tengku Saharuddin, Tengku Shafazila ; Salleh, Fairous ; Othaman, Rizafizah ; Mohamed Hisham, Mohamed Wahab ; Yarmo, Mohd. Ambar. / Study on the reduction behavior of molybdenum oxide (MoO3) in carbon monoxide (CO) atmosphere. Materials Science Forum. Vol. 840 Trans Tech Publications Ltd, 2016. pp. 299-304 (Materials Science Forum).
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