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4810633 
Journal Article 
Low Temperature Water-Gas Shift Reaction Over Alkali Metal Promoted Cobalt Carbide Catalysts 
Gnanamani, MK; Jacobs, G; Shafer, WD; Sparks, DE; Hopps, S; Thomas, GA; Davis, BH 
2014 
1 
Topics in Catalysis
ISSN: 1022-5528
EISSN: 1572-9028 
57 
6-9 
612-618 
WOS:000332829200023 
Low temperature water-gas shift (LT-WGS) was performed over various group I alkali metal (Li, Na, K, Rb, Cs) promoted cobalt carbide (Co2C) catalysts at temperatures ranging from 453 to 573 K and atmospheric pressure. Cobalt carbide (Co2C) was found to be active for the WGS reaction. The stability of the catalyst is related to the stability of the cobalt carbide phases under reaction conditions. Potassium promoted cobalt carbide catalysts exhibited higher activity and stability compared to the other alkali promoted catalysts for LT-WGS. X-ray diffraction analyses of fresh and used catalysts suggest that the origin of deactivation of the catalysts is primarily due to the chemical transition of cobalt from carbide to metal during WGS. 
Low temperature water-gas shift; Cobalt carbide; Alkali promoter; Catalyst stability; X-ray diffraction 
IRIS
• Cobalt
     LitSearch: January 2008 - August 2018
          WoS
• Molybdenum
     Litsearch 2018
          WOS