The inhibition effect of oxygen in the calcination atmosphere on the catalytic performance of MnO x –CeO 2 catalysts for NO oxidation
作者: Yiqing ZengDong JiangYanan WangShule ZhangQin Zhong
作者单位: 1Nanjing University of Science and Technology
刊名: Reaction Kinetics, Mechanisms and Catalysis, 2017, Vol.122 (1), pp.593-604
来源数据库: Springer Journal
DOI: 10.1007/s11144-017-1234-7
关键词: Oxygen in calcination atmosphereOxygen vacanciesRedox propertiesActive oxygen species
英文摘要: In this study, the widely studied MnCe (MnOx–CeO2) catalyst prepared by the co-precipitation method was used for investigating the effects of oxygen in the calcination atmosphere (referred as Oca) on its catalytic performance for NO oxidation. The evaluation of catalytic performance showed that MnCe-O (calcined in O2/Ar) exhibited a much lower NO conversion in comparison with MnCe-A (calcined in Ar) catalyst. The characterization results revealed that Oca could cause the sintering of MnCe catalysts and then reduce the surface area, which decreased the active sites for catalytic reaction. Simultaneously, Oca inhibited the incorporation of Mn ions into CeO2 lattice, which could weaken the interaction between MnOx and CeO2 supports. This...
原始语种摘要: In this study, the widely studied MnCe (MnOx–CeO2) catalyst prepared by the co-precipitation method was used for investigating the effects of oxygen in the calcination atmosphere (referred as Oca) on its catalytic performance for NO oxidation. The evaluation of catalytic performance showed that MnCe-O (calcined in O2/Ar) exhibited a much lower NO conversion in comparison with MnCe-A (calcined in Ar) catalyst. The characterization results revealed that Oca could cause the sintering of MnCe catalysts and then reduce the surface area, which decreased the active sites for catalytic reaction. Simultaneously, Oca inhibited the incorporation of Mn ions into CeO2 lattice, which could weaken the interaction between MnOx and CeO2 supports. This...
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影响因子:1.104 (2012)

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关键词翻译
关键词翻译
  • catalytic 催化的
  • calcination 煅烧
  • performance 性能
  • catalyst 催化剂
  • calcined 煅烧过的
  • oxygen 
  • adsorbed 被吸附的
  • Oxygen 氧气
  • oxidation 氧化
  • atmosphere 大气圈