Preparation and characterization of Fe-doped TiO2 nanoparticles as a support for a high performance CO oxidation catalyst

2012 ◽  
Vol 22 (25) ◽  
pp. 12629 ◽  
Author(s):  
Sungju Yu ◽  
Hyeong Jin Yun ◽  
David Minzae Lee ◽  
Jongheop Yi
Keyword(s):  
Co Oxidation ◽  
Tio2 Nanoparticles ◽  
High Performance ◽  
Oxidation Catalyst ◽  
Doped Tio2

scholarly journals An oxidized magnetic Au single atom on doped TiO2(110) becomes a high performance CO oxidation catalyst due to the charge effect

2017 ◽  
Vol 5 (36) ◽  
pp. 19316-19322 ◽  
Author(s):  
J. L. Shi ◽  
X. J. Zhao ◽  
L. Y. Zhang ◽  
X. L. Xue ◽  
Z. X. Guo ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Co Oxidation ◽  
High Performance ◽  
Important Application ◽  
Oxidation Catalyst ◽  
Single Atom ◽  
Charge Effect ◽  
Extensive Investigation ◽  
Doped Tio2

Catalysis using gold nanoparticles supported on oxides has been under extensive investigation for many important application processes.

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.

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