Structural and catalytic aspects of sol–gel derived copper manganese oxides as low-temperature CO oxidation catalyst

2006 ◽  
Vol 302 (2) ◽  
pp. 257-263 ◽  
Author(s):  
M. Krämer ◽  
T. Schmidt ◽  
K. Stöwe ◽  
W.F. Maier
Keyword(s):  
Low Temperature ◽  
Co Oxidation ◽  
Manganese Oxides ◽  
Sol Gel ◽  
Oxidation Catalyst ◽  
Copper Manganese ◽  
Low Temperature Co Oxidation

Gold on Different Manganese Oxides: Ultra-Low-Temperature CO Oxidation over Colloidal Gold Supported on Bulk-MnO2 Nanomaterials

2016 ◽  
Vol 138 (30) ◽  
pp. 9572-9580 ◽  
Author(s):  
Dong Gu ◽  
Jo-Chi Tseng ◽  
Claudia Weidenthaler ◽  
Hans-Josef Bongard ◽  
Bernd Spliethoff ◽  
...  
Keyword(s):  
Low Temperature ◽  
Co Oxidation ◽  
Colloidal Gold ◽  
Manganese Oxides ◽  
Low Temperature Co Oxidation

scholarly journals Complex Three-Dimensional Co3O4 Nano-Raspberry: Highly Stable and Active Low-temperature CO Oxidation Catalyst

Nanomaterials ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 662 ◽  
Author(s):  
Teruaki Fuchigami ◽  
Ryosuke Kimata ◽  
Masaaki Haneda ◽  
Ken-ichi Kakimoto
Keyword(s):  
Low Temperature ◽  
Co Oxidation ◽  
High Performance ◽  
Noble Metals ◽  
Three Dimensional ◽  
Oxidation Catalyst ◽  
High Catalytic Activity ◽  
Co3o4 Nanoparticles ◽  
Bridging Ligands ◽  
Low Temperature Co Oxidation

Highly stable and active low-temperature CO oxidation catalysts without noble metals are desirable to achieve a sustainable society. While zero-dimensional to three-dimensional Co3O4 nanoparticles show high catalytic activity, simple-structured nanocrystals easily self-aggregate and become sintered during catalytic reaction. Thus, complex three-dimensional nanostructures with high stability are of considerable interest. However, the controlled synthesis of complex nanoscale shapes remains a great challenge as no synthesis theory has been established. In this study, 100 nm raspberry-shaped nanoparticles composed of 7–8 nm Co3O4 nanoparticles were synthesized by hydrothermally treating cobalt glycolate solution with sodium sulfate. Surface single nanometer-scale structures with large surface areas of 89 m2·g−1 and abundant oxygen vacancies were produced. The sulfate ions functioned as bridging ligands to promote self-assembly and suppress particle growth. The Co3O4 nano-raspberry was highly stable under catalytic tests at 350 °C and achieved nearly 100% CO conversion at room temperature. The addition of bridging ligands is an effective method to control the formation of complex but ordered three-dimensional nanostructures that possessed extreme thermal and chemical stability and exhibited high performance.

Gold nanoparticles supported on manganese oxides for low-temperature CO oxidation

2009 ◽  
Vol 88 (1-2) ◽  
pp. 204-212 ◽  
Author(s):  
Lu-Cun Wang ◽  
Qian Liu ◽  
Xin-Song Huang ◽  
Yong-Mei Liu ◽  
Yong Cao ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Low Temperature ◽  
Co Oxidation ◽  
Manganese Oxides ◽  
Low Temperature Co Oxidation

Influence of silver on the catalytic properties of the cryptomelane and Ag-hollandite types manganese oxides OMS-2 in the low-temperature CO oxidation

2013 ◽  
Vol 462-463 ◽  
pp. 64-74 ◽  
Author(s):  
Mahmut Özacar ◽  
Altuğ S. Poyraz ◽  
Homer C. Genuino ◽  
Chung-Hao Kuo ◽  
Yongtao Meng ◽  
...  
Keyword(s):  
Low Temperature ◽  
Co Oxidation ◽  
Manganese Oxides ◽  
Catalytic Properties ◽  
Low Temperature Co Oxidation

Where Does the Sulphur Go? Deactivation of a Low Temperature CO Oxidation Catalyst by Sulphur Poisoning

2018 ◽  
Vol 148 (5) ◽  
pp. 1445-1450 ◽  
Author(s):  
János Szanyi ◽  
Donghai Mei ◽  
Tamás Varga ◽  
Charles H. F. Peden ◽  
Iljeong Heo ◽  
...  
Keyword(s):  
Low Temperature ◽  
Co Oxidation ◽  
Oxidation Catalyst ◽  
Sulphur Poisoning ◽  
Low Temperature Co Oxidation
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