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

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

RSC Advances ◽  
2016 ◽  
Vol 6 (84) ◽  
pp. 80541-80548 ◽  
Author(s):  
Deshetti Jampaiah ◽  
P. Venkataswamy ◽  
Victoria Elizabeth Coyle ◽  
Benjaram M. Reddy ◽  
Suresh K. Bhargava

Transition metal doped ceria nanorods exhibit a better CO oxidation activity at lower temperatures.


2015 ◽  
Vol 345 ◽  
pp. 319-328 ◽  
Author(s):  
V. Johánek ◽  
M. Václavů ◽  
I. Matolínová ◽  
I. Khalakhan ◽  
S. Haviar ◽  
...  

Nanoscale ◽  
2010 ◽  
Vol 2 (12) ◽  
pp. 2739 ◽  
Author(s):  
Jinwen Qin ◽  
Junfeng Lu ◽  
Minhua Cao ◽  
Changwen Hu

Science ◽  
2017 ◽  
Vol 358 (6369) ◽  
pp. 1419-1423 ◽  
Author(s):  
Lei Nie ◽  
Donghai Mei ◽  
Haifeng Xiong ◽  
Bo Peng ◽  
Zhibo Ren ◽  
...  

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.


2018 ◽  
Vol 9 (9) ◽  
pp. 2469-2473 ◽  
Author(s):  
Xiao Liu ◽  
Yuanting Tang ◽  
Meiqing Shen ◽  
Wei Li ◽  
Shengqi Chu ◽  
...  

Highly dispersed Pt sub-nanoclusters are anchored on SmMn2O5mullitesviaatomic layer deposition, and show excellent 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 ◽  
...  

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


Sign in / Sign up

Export Citation Format

Share Document