Promoting effects of ceria on the catalytic performance of gold supported on TiO2 for low-temperature CO oxidation

RSC Advances ◽  
2014 ◽  
Vol 4 (33) ◽  
pp. 16985-16991 ◽  
Author(s):  
Jun Yu ◽  
Guisheng Wu ◽  
Guanzhong Lu ◽  
Dongsen Mao ◽  
Yun Guo
Keyword(s):  
Low Temperature ◽  
Co Oxidation ◽  
Active Sites ◽  
High Stability ◽  
Oxygen Vacancies ◽  
Catalytic Performance ◽  
Quick Recovery ◽  
Low Temperature Co Oxidation

Doping with Ce enhanced the Au–support synergy and modified the active sites. The effortless decomposition of carbonates and quick recovery of oxygen vacancies on the Au/CeO2–TiO2 surface may be responsible for its high stability.

scholarly journals Low temperature CO oxidation catalysed by flower-like Ni–Co–O: how physicochemical properties influence catalytic performance

RSC Advances ◽  
2018 ◽  
Vol 8 (13) ◽  
pp. 7110-7122 ◽  
Author(s):  
Yunan Yi ◽  
Pan Zhang ◽  
Zuzeng Qin ◽  
Chuxuan Yu ◽  
Wei Li ◽  
...  
Keyword(s):  
Low Temperature ◽  
Physicochemical Properties ◽  
Co Oxidation ◽  
Oxygen Vacancies ◽  
Catalytic Performance ◽  
Surface Oxygen ◽  
High Concentration ◽  
Highly Dispersed ◽  
Low Temperature Co Oxidation

The flower-like catalyst possesses highly dispersed amorphous NiO and a high concentration of surface oxygen vacancies which are the central points for CO oxidation.

Low-temperature CO oxidation on Ag/ZSM-5 catalysts: Influence of Si/Al ratio and redox pretreatments on formation of silver active sites

Fuel ◽  
2017 ◽  
Vol 188 ◽  
pp. 121-131 ◽  
Author(s):  
E. Kolobova ◽  
A. Pestryakov ◽  
G. Mamontov ◽  
Yu. Kotolevich ◽  
N. Bogdanchikova ◽  
...  
Keyword(s):  
Low Temperature ◽  
Co Oxidation ◽  
Active Sites ◽  
Low Temperature Co Oxidation

scholarly journals Elucidation of the Active Sites in Single-Atom Pd1/CeO2 Catalysts for Low-Temperature CO Oxidation

ACS Catalysis ◽  
2020 ◽  
Vol 10 (19) ◽  
pp. 11356-11364 ◽  
Author(s):  
Dong Jiang ◽  
Gang Wan ◽  
Carlos E. García-Vargas ◽  
Linze Li ◽  
Xavier Isidro Pereira-Hernández ◽  
...  
Keyword(s):  
Low Temperature ◽  
Co Oxidation ◽  
Active Sites ◽  
Single Atom ◽  
Low Temperature Co Oxidation

Activation of surface lattice oxygen in single-atom Pt/CeO2 for low-temperature CO oxidation

Science ◽  
2017 ◽  
Vol 358 (6369) ◽  
pp. 1419-1423 ◽  
Author(s):  
Lei Nie ◽  
Donghai Mei ◽  
Haifeng Xiong ◽  
Bo Peng ◽  
Zhibo Ren ◽  
...  
Keyword(s):  
Low Temperature ◽  
Co Oxidation ◽  
Active Sites ◽  
Fuel Efficiency ◽  
Steam Treatment ◽  
Single Atom ◽  
Oxidation Activity ◽  
Formidable Challenge ◽  
Low Temperature Co Oxidation ◽  
Exhaust Treatment

To improve fuel efficiency, advanced combustion engines are being designed to minimize the amount of heat wasted in the exhaust. Hence, future generations of catalysts must perform at temperatures that are 100°C lower than current exhaust-treatment catalysts. Achieving low-temperature activity, while surviving the harsh conditions encountered at high engine loads, remains a formidable challenge. In this study, we demonstrate how atomically dispersed ionic platinum (Pt2+) on ceria (CeO2), which is already thermally stable, can be activated via steam treatment (at 750°C) to simultaneously achieve the goals of low-temperature carbon monoxide (CO) oxidation activity while providing outstanding hydrothermal stability. A new type of active site is created on CeO2 in the vicinity of Pt2+, which provides the improved reactivity. These active sites are stable up to 800°C in oxidizing environments.

Effect of TiO2 crystal structure on the catalytic performance of Co3O4/TiO2 catalyst for low-temperature CO oxidation

2014 ◽  
Vol 4 (5) ◽  
pp. 1268-1275 ◽  
Author(s):  
Jie Li ◽  
Guanzhong Lu ◽  
Guisheng Wu ◽  
Dongsen Mao ◽  
Yanglong Guo ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Low Temperature ◽  
Co Oxidation ◽  
Catalytic Performance ◽  
Precipitation Method ◽  
Tio2 Catalyst ◽  
Excellent Activity ◽  
Low Temperature Co Oxidation

Co3O4 supported on TiO2 (anatase (A), rutile (R) and P25 (Degussa)) catalysts were prepared by a deposition–precipitation method. Co3O4/TiO2 (A) shows excellent activity for CO oxidation with 100% conversion at −43 °C.

Highly water-resistant carbon nanotube supported PdCl2–CuCl2 catalysts for low temperature CO oxidation

RSC Advances ◽  
2016 ◽  
Vol 6 (71) ◽  
pp. 66553-66563 ◽  
Author(s):  
Fanyun Zhou ◽  
Xuexun Du ◽  
Jun Yu ◽  
Dongsen Mao ◽  
Guanzhong Lu
Keyword(s):  
Carbon Nanotube ◽  
Low Temperature ◽  
Physicochemical Properties ◽  
Co Oxidation ◽  
Catalytic Performance ◽  
Impregnation Method ◽  
Low Temperature Co Oxidation

PdCl2–CuCl2/CNT was prepared by the two-step impregnation method, and the effects of the Pd and Cu loadings on its physicochemical properties and catalytic performance for low-temperature CO oxidation in the presence of H2O were investigated.

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