The use of 18O2 to investigate the soot oxidation process on Co3O4, Co3O4-CeO2 and CeO2 catalysts in tight contact conditions

被引：3
|
作者：
Rotko, Marek [1 ]
机构：
[1] Marie Curie Sklodowska Univ, Inst Chem Sci, Fac Chem, Dept Chem Technol, 3 Maria Curie Sklodowska Sq, PL-20031 Lublin, Poland
来源：
CATALYSIS COMMUNICATIONS | 2023年 / 177卷
关键词：
Diesel soot oxidation; CeO2; TPIE; Transient isotopic kinetics of16O; 18O exchange; CERIA-BASED CATALYSTS; DIESEL EXHAUST-GASES; ACTIVE OXYGEN; CO OXIDATION; COMBUSTION; SURFACE; COBALT; STATE; EMISSION; KINETICS;
D O I：
10.1016/j.catcom.2023.106644
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The reaction mechanism of soot oxidation in tight contact conditions and that of oxygen mobility in the crystal lattices of Co3O4, Co3O4-CeO2 and CeO2 was studied. The TPIE results suggested that oxygen mobility is the highest in the crystal lattice of Co3O4-CeO2. The Isotopic Transient Kinetic Analysis (ITKA) results suggested that soot oxidation proceeds mainly with the use of surface adsorbed oxygen on Co3O4, with lattice oxygen on CeO2 but without excluding the participation of small amounts of surface adsorbed oxygen, and in the case of Co3O4- CeO2 with the participation of both adsorbed surface and lattice oxygen.
引用
收藏
页数：10
相关论文
共 50 条
  • [1] Co3O4 Catalysts on CeO2-ZrO2 Supports and Co3O4-CeO2 Catalysts on Al2O3/SiO2 Supports for the Oxidation of Propylene
    Tien The Nguyen
    Phuong ThiMai Pham
    Thang Minh Le
    Isabel Van Driessche
    [J]. JOURNAL OF CHEMISTRY, 2015, 2015
  • [2] Formic Acid Modified Co3O4-CeO2 Catalysts for CO Oxidation
    Shang, Ruishu
    Duan, Yiping
    Zhong, Xinyan
    Xie, Wei
    Luo, Yan
    Huang, Lihong
    [J]. CATALYSTS, 2016, 6 (03)
  • [3] Preferential oxidation of CO in H2 over Co3O4-CeO2 catalysts
    Qiang Guo
    Yuan Liu
    [J]. Reaction Kinetics and Catalysis Letters, 2007, 92 : 19 - 25
  • [4] Preferential oxidation of CO in H2 over Co3O4-CeO2 catalysts
    Guo, Qiang
    Liu, Yuan
    [J]. REACTION KINETICS AND CATALYSIS LETTERS, 2007, 92 (01): : 19 - 25
  • [5] Co3O4/CeO2 composite oxides for methane emissions abatement:: Relationship between Co3O4-CeO2 interaction and catalytic activity
    Liotta, L. F.
    Di Carlo, G.
    Pantaleo, G.
    Venezia, A. M.
    Deganello, G.
    [J]. APPLIED CATALYSIS B-ENVIRONMENTAL, 2006, 66 (3-4) : 217 - 227
  • [6] Influence of oxide doping on Co3O4-CeO2 for CO oxidation
    Cai Jianxin
    Lv Yihao
    Zhang Rongbin
    Luo Laitao
    [J]. APPLICATIONS OF ENGINEERING MATERIALS, PTS 1-4, 2011, 287-290 : 1718 - +
  • [7] Co3O4 + CeO2/SiO2 Catalysts for n-Hexane and CO Oxidation
    S. Todorova
    G. Kadinov
    K. Tenchev
    A. Caballero
    J. P. Holgado
    R. Pereñíguez
    [J]. Catalysis Letters, 2009, 129 : 149 - 155
  • [8] Synthesis of a CeO2/Co3O4 catalyst with a remarkable performance for the soot oxidation reaction
    Medina, J. C.
    Rodil, S. E.
    Zanetta, Rodolfo
    [J]. CATALYSIS SCIENCE & TECHNOLOGY, 2020, 10 (03) : 853 - 863
  • [9] Co3O4 + CeO2/SiO2 Catalysts for n-Hexane and CO Oxidation
    Todorova, S.
    Kadinov, G.
    Tenchev, K.
    Caballero, A.
    Holgado, J. P.
    Pereniguez, R.
    [J]. CATALYSIS LETTERS, 2009, 129 (1-2) : 149 - 155
  • [10] Mesoporous Co3O4-CeO2 and Pd/Co3O4-CeO2 catalysts:: Synthesis, characterization and mechanistic study of their catalytic properties for low-temperature CO oxidation
    Luo, Jin-Yong
    Meng, Ming
    Li, Xiang
    Li, Xin-Gang
    Zha, Yu-Qing
    Hu, Tian-Dou
    Xie, Ya-Ning
    Zhang, Jing
    [J]. JOURNAL OF CATALYSIS, 2008, 254 (02) : 310 - 324
12345