Tailoring the Local Environment of Platinum in Single‐Atom Pt1/CeO2 Catalysts for Robust Low‐Temperature CO Oxidation

2021 ◽  
Author(s):  
Dong Jiang ◽  
Yonggang Yao ◽  
Tangyuan Li ◽  
Gang Wan ◽  
Xavier Isidro Pereira-Hernández ◽  
...  
2021 ◽  
Vol 133 (50) ◽  
Author(s):  
Dong Jiang ◽  
Yonggang Yao ◽  
Tangyuan Li ◽  
Gang Wan ◽  
Xavier Isidro Pereira‐Hernández ◽  
...  

2021 ◽  
Vol 60 (50) ◽  
Author(s):  
Dong Jiang ◽  
Yonggang Yao ◽  
Tangyuan Li ◽  
Gang Wan ◽  
Xavier Isidro Pereira‐Hernández ◽  
...  

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 ◽  
...  

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.


2020 ◽  
Vol 12 (17) ◽  
pp. 19457-19466 ◽  
Author(s):  
Hai-Cai Huang ◽  
Jing Wang ◽  
Jun Li ◽  
Yang Zhao ◽  
Xiao-Xiao Dong ◽  
...  

2019 ◽  
Vol 2 (8) ◽  
pp. 1900006 ◽  
Author(s):  
Cheng Cheng ◽  
Xilin Zhang ◽  
Zongxian Yang ◽  
Kersti Hermansson

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