Insights into Different Reaction Behaviors of Propane and CO Oxidation over Pt/CeO2 and Pt/Nb2O5: The Crucial Roles of Support Properties
文献类型：期刊论文
| 作者 | Wang, Weiyue; Li, Dandan; Yu, Hongbo; Liu, Chufeng; Tang, Cen; Chen, Jian; Lu, Jiqing; Luo, Mengfei |
| 刊名 | JOURNAL OF PHYSICAL CHEMISTRY C
 |
| 出版日期 | 2021 |
| 卷号 | 125期号:35页码:19301-19310 |
| 关键词 | CATALYTIC COMBUSTION OZONE DECOMPOSITION DEEP OXIDATION CRYSTAL-PLANE PARTICLE-SIZE PERFORMANCE OXYGEN CERIA CEO2 PLATINUM |
| 英文摘要 | Pt/CeO2 and Pt/Nb2O5 catalysts were employed to catalyze CO and propane oxidation. It was found that the Pt/CeO2 catalyst was more active than the Pt/Nb2O5 catalyst for CO oxidation, while it was less active in propane oxidation. The different behaviors were closely related to the nature of the support, which affected the properties of the active Pt species as well as the reaction pathways. For CO oxidation, the reaction took place at the Pt-CeO2 interface of the Pt/CeO2 catalyst. The facile activation of oxygen species on the CeO2 with abundant oxygen vacancies accounted for its high activity, while the competitive adsorption of CO and O-2 on the surface Pt atoms led to a strong inhibiting role of oxygen on the reactivity, which was indicated by a negative reaction order of oxygen on the Pt/Nb2O5 catalyst. For the propane oxidation, as metallic Pt species were beneficial for the activation of C-H bond in propane, the high concentration of metallic Pt species in the Pt/Nb2O5 induced by the stabilizing effect of surface acidity of the Nb2O5 support was responsible for its higher activity compared to the Pt/CeO2 with oxidized Pt species. |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/21507]  |
| 专题 | 2021专题_期刊论文 |
| 作者单位 | Luo, MF (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 | Wang, Weiyue,Li, Dandan,Yu, Hongbo,et al. Insights into Different Reaction Behaviors of Propane and CO Oxidation over Pt/CeO2 and Pt/Nb2O5: The Crucial Roles of Support Properties[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2021,125(35):19301-19310. |
| APA | Wang, Weiyue.,Li, Dandan.,Yu, Hongbo.,Liu, Chufeng.,Tang, Cen.,...&Luo, Mengfei.(2021).Insights into Different Reaction Behaviors of Propane and CO Oxidation over Pt/CeO2 and Pt/Nb2O5: The Crucial Roles of Support Properties.JOURNAL OF PHYSICAL CHEMISTRY C,125(35),19301-19310. |
| MLA | Wang, Weiyue,et al."Insights into Different Reaction Behaviors of Propane and CO Oxidation over Pt/CeO2 and Pt/Nb2O5: The Crucial Roles of Support Properties".JOURNAL OF PHYSICAL CHEMISTRY C 125.35(2021):19301-19310. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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