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Study on reduction of MoS2 powders with activated carbon to produce Mo2C under vacuum conditions.
- Source :
- International Journal of Minerals, Metallurgy & Materials; Apr2018, Vol. 25 Issue 4, p405-412, 8p
- Publication Year :
- 2018
-
Abstract
- A method of preparing Mo<subscript>2</subscript>C via vacuum carbothermic reduction of MoS<subscript>2</subscript> in the temperature range of 1350-1550°C was proposed. The effects of MoS<subscript>2</subscript>-to-C molar ratio (α, α = 1:1, 1:1.5, and 1:2.5) and reaction temperature (1350 to 1550°C) on the reaction were studied in detail. The phase transition, morphological evolution, and residual sulfur content of the products were analyzed by X-ray diffraction, field-emission scanning electron microscopy, and carbon-sulfur analysis, respectively. The results showed that the complete decomposition of MoS2 under vacuum is difficult, whereas activated carbon can react with MoS2 under vacuum to generate Mo<subscript>2</subscript>C. Meanwhile, higher temperatures and the addition of more carbon accelerated the rate of carbothermic reduction reaction and further decreased the residual sulfur content. From the experimental results, the optimum molar ratio α was concluded to be 1:1.5. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 16744799
- Volume :
- 25
- Issue :
- 4
- Database :
- Complementary Index
- Journal :
- International Journal of Minerals, Metallurgy & Materials
- Publication Type :
- Academic Journal
- Accession number :
- 129037642
- Full Text :
- https://doi.org/10.1007/s12613-018-1585-8