Ultra-Low-Temperature CO Oxidation Activity of Octahedral Site Cobalt Species in Co3O4 Based Catalysts: Unravelling the Origin of the Unique Catalytic Property

2019 ◽  
Vol 123 (32) ◽  
pp. 19557-19571 ◽  
Author(s):  
Tinku Baidya ◽  
Toru Murayama ◽  
Subramanian Nellaiappan ◽  
Nirmal Kumar Katiyar ◽  
Parthasarathi Bera ◽  
...  
Keyword(s):  
Low Temperature ◽  
Co Oxidation ◽  
Catalytic Property ◽  
Octahedral Site ◽  
Oxidation Activity ◽  
Low Temperature Co Oxidation ◽  
Cobalt Species

High low-temperature CO oxidation activity of platinum oxide prepared by magnetron sputtering

2015 ◽  
Vol 345 ◽  
pp. 319-328 ◽  
Author(s):  
V. Johánek ◽  
M. Václavů ◽  
I. Matolínová ◽  
I. Khalakhan ◽  
S. Haviar ◽  
...  
Keyword(s):  
Low Temperature ◽  
Magnetron Sputtering ◽  
Co Oxidation ◽  
Platinum Oxide ◽  
Oxidation Activity ◽  
Low Temperature Co Oxidation

Synthesis of porous CuO–CeO2 nanospheres with an enhanced low-temperature CO oxidation activity

Nanoscale ◽  
2010 ◽  
Vol 2 (12) ◽  
pp. 2739 ◽  
Author(s):  
Jinwen Qin ◽  
Junfeng Lu ◽  
Minhua Cao ◽  
Changwen Hu
Keyword(s):  
Low Temperature ◽  
Co Oxidation ◽  
Oxidation Activity ◽  
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.

scholarly journals Bifunctional CO oxidation over Mn-mullite anchored Pt sub-nanoclustersviaatomic layer deposition

2018 ◽  
Vol 9 (9) ◽  
pp. 2469-2473 ◽  
Author(s):  
Xiao Liu ◽  
Yuanting Tang ◽  
Meiqing Shen ◽  
Wei Li ◽  
Shengqi Chu ◽  
...  
Keyword(s):  
Low Temperature ◽  
Atomic Layer Deposition ◽  
Co Oxidation ◽  
Atomic Layer ◽  
Oxidation Activity ◽  
Layer Deposition ◽  
Highly Dispersed ◽  
Low Temperature Co Oxidation

Highly dispersed Pt sub-nanoclusters are anchored on SmMn2O5mullitesviaatomic layer deposition, and show excellent low-temperature CO oxidation activity.

Tuning the structure of bifunctional Pt/SmMn2O5 interfaces for promoted low-temperature CO oxidation activity

Nanoscale ◽  
2019 ◽  
Vol 11 (17) ◽  
pp. 8150-8159 ◽  
Author(s):  
Xiao Liu ◽  
Jiaqiang Yang ◽  
Gurong Shen ◽  
Meiqing Shen ◽  
Yunkun Zhao ◽  
...  
Keyword(s):  
Low Temperature ◽  
Co Oxidation ◽  
Local Structure ◽  
Oxidation Activity ◽  
Low Temperature Co Oxidation

The role of bifunctional Pt/SmMn2O5 interfaces offered by tuning their local structure and composition in promoting low-temperature CO oxidation is investigated.

Glutamine-assisted synthesis of Cu-doped CeO2 nanowires with an improved low-temperature CO oxidation activity

RSC Advances ◽  
2015 ◽  
Vol 5 (36) ◽  
pp. 28619-28623 ◽  
Author(s):  
Juan Wang ◽  
Siwen Lin ◽  
Zeye Han ◽  
Yuping Liu
Keyword(s):  
Low Temperature ◽  
Co Oxidation ◽  
Oxidation Activity ◽  
Low Temperature Co Oxidation ◽  
Doped Ceo2

Glutamine (GLN)-assisted Cu-doped CeO2 nanowires exhibit an outstanding performance for CO oxidation and can completely convert CO at 90 °C.

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