催化学报 ›› 2020, Vol. 41 ›› Issue (6): 938-950.DOI: 10.1016/S1872-2067(19)63510-2

• 综述 • 上一篇    下一篇

Pd/CeO2甲烷氧化催化剂的构效关系

Sara Colussia, Paolo Fornasierob, Alessandro Trovarellia   

  1. a 乌迪内大学理工学院, 乌迪内研究所, 乌迪内, 意大利;
    b 的里雅斯特大学的里雅斯特研究所化学与药物科学系, 意大利
  • 收稿日期:2019-07-30 修回日期:2019-09-04 出版日期:2020-06-18 发布日期:2020-01-21
  • 通讯作者: Sara Colussi

Structure-activity relationship in Pd/CeO2 methane oxidation catalysts

Sara Colussia, Paolo Fornasierob, Alessandro Trovarellia   

  1. a Dipartimento Politecnico, Università di Udine, Unità di Ricerca INSTM Udine, via del Cotonificio 108, 33100 Udine, Italy;
    b Dipartimento di Scienze Chimiche e Farmaceutiche, Unità di Ricerca di Trieste ICCOM-CNR, INSTM Trieste, Università di Trieste, via L. Giorgieri, 1, 34127 Trieste, Italy
  • Received:2019-07-30 Revised:2019-09-04 Online:2020-06-18 Published:2020-01-21
  • Contact: S1872-2067(19)63510-2

摘要: 钯基催化剂是甲烷氧化活最具活性的催化剂.在宏观和纳米尺度上,它们的组成、结构和形态的调整可以显著改变其催化行为和稳定性,对催化剂的整体性能有很大的影响.在已经应用的几种载体和促进剂组合中,Pd/CeO2由于其活性和耐用性以及Pd/PdO载体之间较强的相互作用而引起了人们的极大关注.这使得人们可在纳米尺度上创建特定的结构,从而对甲烷活化特性产生重大的影响.本文综述了该领域的最新发现,特别是设想如何在纳米尺度上尽可能控制Pd-CeO2相互作用,从而有助于设计更强劲的甲烷氧化催化剂.

关键词: 钯, 二氧化铈, 甲烷催化氧化, Pd-CeO2相互作用, 纳米结构

Abstract: Palladium based catalysts are the most active for methane oxidation. The tuning of their composition, structure and morphology at macro and nanoscale can alter significantly their catalytic behavior and robustness with a strong impact on their overall performances. Among the several combinations of supports and promoters that have been utilized, Pd/CeO2 has attracted a great attention due to its activity and durability coupled with the unusually high degree of interaction between Pd/PdO and the support. This allows the creation of specific structural arrangements which profoundly impact on methane activation characteristics. Here we want to review the latest findings in this area, and particularly to envisage how the control (when possible) of Pd-CeO2 interaction at nanoscale can help in designing more robust methane oxidation catalysts.

Key words: Palladium, Ceria, Methane catalytic oxidation, Pd-ceria interaction, Nanostructure