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.

Hydrogen production by the water-gas shift reaction using CuNi/Fe2O3 catalyst

2015 ◽  
Vol 5 (5) ◽  
pp. 2752-2760 ◽  
Author(s):  
Ajay Jha ◽  
Dae-Woon Jeong ◽  
Jae-Oh Shim ◽  
Won-Jun Jang ◽  
Yeol-Lim Lee ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
High Temperature ◽  
Water Gas Shift ◽  
Crystalline Lattice ◽  
Water Gas Shift Reaction ◽  
High Temperature Water ◽  
Wgs Reaction ◽  
Shift Reaction ◽  
Water Gas ◽  
Temperature Water

Incorporation of both Cu and Ni together into the crystalline lattice of Fe2O3 results in a significant increase in the catalytic activity and also suppresses the methanation reaction in the high-temperature water-gas shift (HT-WGS) reaction.

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.

A crucial role for the CeO2–ZrO2 support for the low temperature water gas shift reaction over Cu–CeO2–ZrO2 catalysts

2015 ◽  
Vol 5 (7) ◽  
pp. 3706-3713 ◽  
Author(s):  
Dae-Woon Jeong ◽  
Hyun-Suk Na ◽  
Jae-Oh Shim ◽  
Won-Jun Jang ◽  
Hyun-Seog Roh
Keyword(s):  
Catalytic Activity ◽  
Low Temperature ◽  
Crucial Role ◽  
Water Gas Shift ◽  
Water Gas Shift Reaction ◽  
Shift Reaction ◽  
Water Gas ◽  
Temperature Water

The catalytic activity of Cu based catalysts is correlated to its amount of defect oxygen which strongly depends on the ratio of CeO2–ZrO2.

Facet-dependent activity of shape-controlled TiO2 supported Au nanoparticles for water-gas shift reaction†

2022 ◽  
Author(s):  
Yuanting Tang ◽  
Yongjie Chen ◽  
Xiao Liu ◽  
Chengxiong Wang ◽  
Yunkun Zhao ◽  
...  
Keyword(s):  
Au Nanoparticles ◽  
Water Gas Shift ◽  
Water Gas Shift Reaction ◽  
Oxide Interface ◽  
Wgs Reaction ◽  
Dependent Activity ◽  
Shape Controlled ◽  
Shift Reaction ◽  
Water Gas

The bifunctional role of noble metal/oxide interface in the activation of reactants is of vital importance in heterogeneous catalysis of water-gas shift (WGS) reaction. Herein, three types of shape-controlled TiO2...

Outdoor sunlight-driven scalable water-gas shift reaction through novel photothermal device-supported CuOx/ZnO/Al2O3 nanosheets with a hydrogen generation rate of 192 mmol g−1 h−1

2020 ◽  
Vol 8 (37) ◽  
pp. 19467-19472
Author(s):  
Chengcheng Shi ◽  
Dachao Yuan ◽  
Luping Ma ◽  
Yaguang Li ◽  
Yangfan Lu ◽  
...  
Keyword(s):  
Production Rate ◽  
Light Absorption ◽  
Hydrogen Generation ◽  
Water Gas Shift ◽  
Generation Rate ◽  
Water Gas Shift Reaction ◽  
Wgs Reaction ◽  
Shift Reaction ◽  
Water Gas

A new photothermal device is constructed by the Cr based selective light absorption film which can heat the 2D CuZnAl to 297 °C under 1 standard sun irradiation, leading to a 192 mmol g−1 h−1 of H2 production rate from 1 sun irradiated WGS reaction.

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