Activities of different metal oxide catalysts on NO reduction and CO oxidation

2009 ◽  
Vol 37 (1) ◽  
pp. 86 ◽  
Author(s):  
Jyh Cherng Chen ◽  
Guor Cheng Fang ◽  
ao ang Shi
Keyword(s):  
Metal Oxide ◽  
Co Oxidation ◽  
No Reduction ◽  
Oxide Catalysts ◽  
Metal Oxide Catalysts

Investigation on NO reduction by CO and H2 over metal oxide catalysts Cu2M9CeOx

2020 ◽  
Vol 45 (33) ◽  
pp. 16469-16481 ◽  
Author(s):  
Qianwen Du ◽  
Xingxing Cheng ◽  
Mudassir Hussain Tahir ◽  
Dexin Su ◽  
Zhiqiang Wang ◽  
...  
Keyword(s):  
Metal Oxide ◽  
No Reduction ◽  
Oxide Catalysts ◽  
Metal Oxide Catalysts ◽  
No Reduction By Co

The effect of metal deposition order on the synergistic activity of Au–Cu and Au–Ce metal oxide catalysts for CO oxidation

2015 ◽  
Vol 168-169 ◽  
pp. 303-312 ◽  
Author(s):  
S.A. Nikolaev ◽  
E.V. Golubina ◽  
I.N. Krotova ◽  
M.I. Shilina ◽  
A.V. Chistyakov ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Co Oxidation ◽  
Metal Deposition ◽  
Oxide Catalysts ◽  
Synergistic Activity ◽  
Metal Oxide Catalysts

Catalyst Design Based on DFT Calculations: Metal Oxide Catalysts for Gas Phase NO Reduction

2014 ◽  
Vol 118 (25) ◽  
pp. 13617-13622 ◽  
Author(s):  
Xuesen Du ◽  
Xiang Gao ◽  
Wenshuo Hu ◽  
Jinpin Yu ◽  
Zhongyang Luo ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Dft Calculations ◽  
Gas Phase ◽  
No Reduction ◽  
Catalyst Design ◽  
Oxide Catalysts ◽  
Metal Oxide Catalysts

scholarly journals Influence of the Fuel/Oxidant Ratio on the Elaboration of Binary Oxide Catalyst by a Microwave-Assisted Solution Combustion Method

Energies ◽  
2020 ◽  
Vol 13 (12) ◽  
pp. 3126
Author(s):  
Kawthar Frikha ◽  
Simona Bennici ◽  
Jamel Bouaziz ◽  
Kamel Chaari ◽  
Lionel Limousy
Keyword(s):  
Metal Oxide ◽  
Co Oxidation ◽  
Combustion Method ◽  
Oxide Catalysts ◽  
Metal Oxide Catalysts ◽  
Solution Combustion ◽  
Solution Combustion Method ◽  
Oxidation Activity ◽  
Binary Metal ◽  
Binary Metal Oxide

Three series of binary metal oxide catalysts containing Ni, Cu, or Co oxides were prepared, fully characterized and tested in CO oxidation. The catalysts, with a constant transition metal loading of 10 wt%, were prepared from metal nitrates and urea mixtures by a microwave-assisted solution combustion method. The RV/OV ratio, corresponding to the stoichiometry of the reactants, calculated from their elemental oxidizing and reducing valences, was varied. In order to modify the redox character of the synthesis medium from the quantity of urea; an excess of urea was used for attaining reducing conditions, while a deficit of urea shifted the medium to oxidizing conditions. Three RV/OV ratios (0.9, 1.0, and 1.1) were selected to elaborate the different binary metal oxide catalysts, nine oxide catalysts were synthesized. Then, the influence of the stoichiometry (RV/OV ratio) on the bulk and surface properties of the binary metal oxide catalysts was investigated. Similarly, the influence of the RV/OV ratio on the CO oxidation activity was discussed and the optimal value of RV/OV ratio was identified. The results show that the increasing of the RV/OV ratio from 0.9 to 1.1, particularly in Ni- and Co-containing catalysts, induces stronger metal-aluminum interactions, in the form of aluminates phases, and that are correlated to the dramatic reduction of the CO oxidation activity. The best physicochemical properties and highest catalytic activities were achieved with the catalysts prepared in redox systems stoichiometrically balanced (RV/OV = 1). The Cu-containing catalysts presented the best catalytic activities in CO oxidation.

Dispersion and support dictated properties and activities of Pt/metal oxide catalysts in heterogeneous CO oxidation

Nano Research ◽  
2021 ◽  
Author(s):  
Jiaojiao Song ◽  
Yixuan Yang ◽  
Shoujie Liu ◽  
Lei Li ◽  
Nan Yu ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Co Oxidation ◽  
Oxide Catalysts ◽  
Metal Oxide Catalysts

Recent advancement in the electrocatalytic synthesis of ammonia

Nanoscale ◽  
2020 ◽  
Vol 12 (15) ◽  
pp. 8065-8094 ◽  
Author(s):  
Xudong Wen ◽  
Jingqi Guan
Keyword(s):  
Metal Oxide ◽  
Oxide Catalysts ◽  
Single Atom ◽  
Metal Oxide Catalysts ◽  
Metal Free ◽  
Recent Advancement ◽  
Nanocomposite Catalysts

Different kinds of electrocatalysts used in NRR electrocatalysis (including single atom catalysts, metal oxide catalysts, nanocomposite catalysts, and metal free catalysts) are introduced.

scholarly journals Efficient Detection of SO2 Gas Using SnO2 Based Sensor Loaded with Metal Oxide Catalysts

2014 ◽  
Vol 87 ◽  
pp. 1075-1078 ◽  
Author(s):  
P. Tyagi ◽  
A. Sharma ◽  
M. Tomar ◽  
V. Gupta
Keyword(s):  
Metal Oxide ◽  
Oxide Catalysts ◽  
Metal Oxide Catalysts ◽  
Efficient Detection ◽  
So2 Gas
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