Article
The role of carbon in catalytically stabilized transition metal sulfides
Applied Catalysis A: General
(2007)
Abstract
Since WWII considerable progress has been made in understanding the basis for the activity and the selectivity of molybdenum and tungsten based hydrotreating catalysts. Recently, the focus of investigation has turned to the structure of the catalytically stabilized active catalyst. The surface of the catalytically stabilized MoS2 has been shown to be carbided with the formula MoSxCy under hydrotreating conditions. In this paper we review the basis for this finding and present new data extending the concept to the promoted TMS (transition metal sulfides) systems CoMoC and NiMoC. Freshly sulfided CoMoS and NiMoS catalyst have a strong tendency to form the carbided surface phases from any available carbon source.
Keywords
- Transition metal sulfides,
- Carbides MoS2,
- MoSxCy,
- RuSxCy,
- CoMoC,
- NiMoC
Disciplines
Publication Date
April 16, 2007
DOI
10.1016/j.apcata.2007.01.017
Citation Information
Stephen Kelty, G. Berhault and R.R. Chianelli. "The role of carbon in catalytically stabilized transition metal sulfides" Applied Catalysis A: General Vol. 322 (2007) p. 9 - 15 ISSN: 0926-860X Available at: http://works.bepress.com/stephen_kelty/5/