Electrochemical Synthesis of Mo2C Catalytical Coatings for the Water-Gas Shift Reaction

2007 ◽  
Vol 62 (10-11) ◽  
pp. 647-654 ◽  
Author(s):  
Sergey A. Kuznetsov ◽  
Anton R. Dubrovskiy ◽  
Evgeny V. Rebrov ◽  
Jaap C. Schouten
Keyword(s):  
Electrochemical Synthesis ◽  
Molybdenum Carbide ◽  
Cathodic Current Density ◽  
Water Gas Shift ◽  
Water Gas Shift Reaction ◽  
Cathodic Current ◽  
Molybdenum Substrate ◽  
Order Of Magnitude ◽  
Shift Reaction ◽  
Water Gas

The electroreduction of CO32− ions on a molybdenum cathode in a NaCl-KCl-Li2CO3 melt was studied by cyclic voltammetry. The electrochemical synthesis of Mo2C on molybdenum substrates has been performed at 1123 K for 7 h with a cathodic current density of 5 mA cm−2. If molybdenum carbide is present as a thin (ca. 500 nm) film on a molybdenum substrate (Mo2C/Mo), its catalytic activity in the water gas-shift reaction is enhanced by at least an order of magnitude compared to that of the bulk Mo2C phase.

Molybdenum carbide clusters for thermal conversion of CO2 to CO via reverse water-gas shift reaction

2020 ◽  
Vol 50 ◽  
pp. 37-43 ◽  
Author(s):  
Ying Ma ◽  
Zhanglong Guo ◽  
Qian Jiang ◽  
Kuang-Hsu Wu ◽  
Huimin Gong ◽  
...  
Keyword(s):  
Molybdenum Carbide ◽  
Thermal Conversion ◽  
Water Gas Shift ◽  
Water Gas Shift Reaction ◽  
Reverse Water Gas Shift ◽  
Shift Reaction ◽  
Water Gas

scholarly journals Effect of the Molybdenum Substrate Shape on Mo2C Coating Electrodeposition

Coatings ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 442 ◽  
Author(s):  
Anton Dubrovskiy ◽  
Olga Makarova ◽  
Sergey Kuznetsov
Keyword(s):  
Catalytic Activity ◽  
Molybdenum Carbide ◽  
Hexagonal Lattice ◽  
Water Gas Shift ◽  
Molybdenum Substrate ◽  
Wgs Reaction ◽  
Carbide Coatings ◽  
Shift Reaction ◽  
Water Gas ◽  
Cathodic Deposits

By electrochemical synthesis in the NaCl-KCl-Li2CO3 (1.5 wt.%)-Na2MoO4 (8.0 wt.%) melt on molybdenum, substrates with different configuration Mo2C coatings with the hexagonal lattice were obtained. The influence of the substrate form on the structure of Mo2C cathodic deposits was studied. The molybdenum carbide coatings on a molybdenum substrate (Mo2C/Mo) show a catalytic activity in the water–gas shift (WGS) reaction by at least three orders of magnitude higher than that of the bulk Mo2C phase. The catalytic activity remained constant during 500 h for the water–gas shift reaction.

Plasma Assisted Synthesis of a Molybdenum Carbide Catalyst

2008 ◽  
Vol 2 (1) ◽  
Author(s):  
C. Lopez ◽  
D. Meyers ◽  
A. Saddawi ◽  
A. Saveliev ◽  
K. Brezinsky
Keyword(s):  
Molybdenum Carbide ◽  
Water Gas Shift ◽  
Synthesis Product ◽  
Water Gas Shift Reaction ◽  
Molybdenum Metal ◽  
Transmission Electron ◽  
Novel Method ◽  
Non Thermal Plasma ◽  
Shift Reaction ◽  
Water Gas

A novel method for the production of a nano-structured molybdenum carbide catalyst using non-thermal plasma is described. This synthesis involves the carburization of a molybdenum metal powder precursor using ethylene as the carbon source. Transmission electron microscopy (TEM) showed the presence of a Mo2C-β crystal structure and a 9�2 nm layer of what was suspected to be Mo2C absent in the molybdenum precursor. Catalytic testing in the water gas shift reaction (WGS) showed no difference in activity between the unreduced synthesis product and the control run.

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