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Title: The Role of Carbon in Catalytically Stabilized Transition Metal Sulfides

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.

Authors:
; ;
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL) National Synchrotron Light Source
Sponsoring Org.:
Doe - Office Of Science
OSTI Identifier:
930649
Report Number(s):
BNL-81091-2008-JA
TRN: US200901%%14
DOE Contract Number:  
DE-AC02-98CH10886
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Catalysis A: General; Journal Volume: 322
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; CARBON; CATALYTIC EFFECTS; CATALYSTS; MOLYBDENUM SULFIDES; HYDROGENATION; MOLYBDENUM CARBIDES; CATALYSIS; COBALT SULFIDES; NICKEL SULFIDES; national synchrotron light source

Citation Formats

Kelty,S., Berhault, G., and Chianelli, R. The Role of Carbon in Catalytically Stabilized Transition Metal Sulfides. United States: N. p., 2007. Web. doi:10.1016/j.apcata.2007.01.017.
Kelty,S., Berhault, G., & Chianelli, R. The Role of Carbon in Catalytically Stabilized Transition Metal Sulfides. United States. doi:10.1016/j.apcata.2007.01.017.
Kelty,S., Berhault, G., and Chianelli, R. Mon . "The Role of Carbon in Catalytically Stabilized Transition Metal Sulfides". United States. doi:10.1016/j.apcata.2007.01.017.
@article{osti_930649,
title = {The Role of Carbon in Catalytically Stabilized Transition Metal Sulfides},
author = {Kelty,S. and Berhault, G. and Chianelli, R.},
abstractNote = {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.},
doi = {10.1016/j.apcata.2007.01.017},
journal = {Applied Catalysis A: General},
number = ,
volume = 322,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2007},
month = {Mon Jan 01 00:00:00 EST 2007}
}