Insights into propane combustion over MoO3 promoted Pt/ZrO2 catalysts: The generation of Pt-MoO3 interface and its promotional role on catalytic activity
文献类型：期刊论文
| 作者 | Zhao, Pei-Pei; Chen, Jian; Yu, Hong-Bo; Cen, Bing-Heng; Wang, Wei-Yue; Luo, Meng-Fei; Lu, Ji-Qing |
| 刊名 | JOURNAL OF CATALYSIS
 |
| 出版日期 | 2020 |
| 卷号 | 391页码:80-90 |
| 关键词 | BIMETALLIC CATALYSTS SUPPORTED CATALYSTS PLATINUM CATALYST OXIDATION SURFACE CO OXIDE PT/AL2O3 HYDROGEN CERIA |
| DOI | 10.1016/j.jcat.2020.08.012 |
| 英文摘要 | The addition of MoO3 in Pt/ZrO2 catalysts significantly improves the activities for propane combustion. The highest activity (a reaction rate of 845.4 mol s(-1)g(Pt)(-1) and a turnover frequency (TOF) of 0.688 s(-1) at 200 degrees C) was obtained on a Pt-1Mo/ZrO2 catalyst (with 1 wt% Mo content), which is much higher than that on the bare Pt/ZrO2 (a reaction rate of 42.4 mol s(-1)g(Pt)(-1) and a TOF of 0.0186 s(-1) at 200 degrees C). Such improvement is due to the generation of the Pt-MoO3 interfacial sites, on which the cleavage of C-H bond and decomposition of the surface carbonates were accelerated. Moreover, the intrinsic activities of active Pt sites (TOFPt) and Pt-MoO3 interfacial sites (TOFPt-MoO3) were clearly differentiated, namely, the interfacial sites possess ca. 40-fold higher activity than the Pt surface atoms (with TOFPt-MoO3 of 0.731 s(-1) at 200 degrees C versus TOFPt of 0.0186 s(-1)) for Pt-1Mo/ZrO2 catalyst. (C) 2020 Elsevier Inc. All rights reserved. |
| 学科主题 | Chemistry ; Engineering |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/20372]  |
| 专题 | 2020专题 2020专题_期刊论文 |
| 作者单位 | 1.Luo, MF 2.Lu, JQ (corresponding author), Zhejiang Normal Univ, Inst Phys Chem, Zhejiang Key Lab React Chem Solid Surfaces, Key Lab,Minist Educ Adv Catalysis Mat, Jinhua 321004, Zhejiang, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Zhao, Pei-Pei,Chen, Jian,Yu, Hong-Bo,et al. Insights into propane combustion over MoO3 promoted Pt/ZrO2 catalysts: The generation of Pt-MoO3 interface and its promotional role on catalytic activity[J]. JOURNAL OF CATALYSIS,2020,391:80-90. |
| APA | Zhao, Pei-Pei.,Chen, Jian.,Yu, Hong-Bo.,Cen, Bing-Heng.,Wang, Wei-Yue.,...&Lu, Ji-Qing.(2020).Insights into propane combustion over MoO3 promoted Pt/ZrO2 catalysts: The generation of Pt-MoO3 interface and its promotional role on catalytic activity.JOURNAL OF CATALYSIS,391,80-90. |
| MLA | Zhao, Pei-Pei,et al."Insights into propane combustion over MoO3 promoted Pt/ZrO2 catalysts: The generation of Pt-MoO3 interface and its promotional role on catalytic activity".JOURNAL OF CATALYSIS 391(2020):80-90. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
浏览0
下载0
收藏0
其他版本
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。