Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1126/science.aao2109 |
Activation of surface lattice oxygen in single-atom Pt/Ce0(2) for low-temperature CO oxidation | |
Nie, Lei1; Mei, Donghai1; Xiong, Haifeng2,3; Peng, Bo1; Ren, Zhibo1,4; Hernandez, Xavier Isidro Pereira5; DeLariva, Andrew2,3; Wang, Meng1; Engelhard, Mark H.1; Kovarik, Libor1; Datye, Abhaya K.2,3; Wang, Yong1,5 | |
2017-12-15 | |
发表期刊 | SCIENCE |
ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2017 |
卷号 | 358期号:6369页码:1419-+ |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Peoples R China |
英文摘要 | 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 degrees 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 (Ce0(2)), which is already thermally stable, can be activated via steam treatment (at 750 degrees 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 Ce0(2) in the vicinity of Pt2+, which provides the improved reactivity. These active sites are stable up to 800 degrees C in oxidizing environments. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000417918500038 |
WOS关键词 | METAL-SUPPORT INTERACTION ; CERIA CATALYSTS ; REDUCED SURFACES ; WATER ; PLATINUM ; PT/CEO2 ; ADSORPTION ; CEO2(111) ; INTERFACE ; STABILITY |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/197560 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Pacific Northwest Natl Lab, Inst Integrated Catalysis & Environm Mol Sci Lab, POB 999, Richland, WA 99352 USA; 2.Univ New Mexico, Dept Chem & Biol Engn, Albuquerque, NM 87131 USA; 3.Univ New Mexico, Ctr Microengn Mat, Albuquerque, NM 87131 USA; 4.Beijing Univ Chem Technol, State Key Lab Chem Resources Engn, Beijing 100029, Peoples R China; 5.Washington State Univ, Gene & Linda Voiland Sch Chem Engn & Bioengn, Pullman, WA 99184 USA |
推荐引用方式 GB/T 7714 | Nie, Lei,Mei, Donghai,Xiong, Haifeng,et al. Activation of surface lattice oxygen in single-atom Pt/Ce0(2) for low-temperature CO oxidation[J]. SCIENCE,2017,358(6369):1419-+. |
APA | Nie, Lei.,Mei, Donghai.,Xiong, Haifeng.,Peng, Bo.,Ren, Zhibo.,...&Wang, Yong.(2017).Activation of surface lattice oxygen in single-atom Pt/Ce0(2) for low-temperature CO oxidation.SCIENCE,358(6369),1419-+. |
MLA | Nie, Lei,et al."Activation of surface lattice oxygen in single-atom Pt/Ce0(2) for low-temperature CO oxidation".SCIENCE 358.6369(2017):1419-+. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论