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

被引：9
|
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
  • [41] n-Heptane oxidation over Co3O4-CeO2 catalyst
    Garrido Pedrosa, Anne M.
    Souza, Marcelo J.B.
    Fernandes, Joana D.G.
    Melo, Dulce M.A.
    Araujo, Antonio S.
    Reaction Kinetics and Catalysis Letters, 2003, 79 (02): : 391 - 396
  • [42] Operando XAS and NAP-XPS studies of preferential CO oxidation on Co3O4 and CeO2-Co3O4 catalysts
    Lukashuk, Liliana
    Foettinger, Karin
    Kolar, Elisabeth
    Rameshan, Christoph
    Teschner, Detre
    Haevecker, Michael
    Knop-Gericke, Axel
    Yigit, Nevzat
    Li, Hao
    McDermott, Eamon
    Stoeger-Pollach, Michael
    Rupprechter, Guenther
    JOURNAL OF CATALYSIS, 2016, 344 : 1 - 15
  • [43] Evaluation of carbon monoxide oxidation over CeO2/Co3O4 catalysts:: Effect of ceria loading
    Tang, Chih-Wei
    Kuo, Ming-Chih
    Lin, Chin-Jung
    Wang, Chen-Bin
    Chien, Shu-Hua
    CATALYSIS TODAY, 2008, 131 (1-4) : 520 - 525
  • [44] Influence of pretreatment conditions on low-temperature carbon monoxide oxidation over CeO2/Co3O4 catalysts
    Tang, Chih-Wei
    Kuo, Chao-Chieh
    Kuo, Ming-Chih
    Wang, Chen-Bin
    Chien, Shu-Hua
    APPLIED CATALYSIS A-GENERAL, 2006, 309 (01) : 37 - 43
  • [45] Effect of sulfur poisoning on Co3O4/CeO2 composite oxide catalyst for soot combustion
    Shi, Xiaoyan
    Yu, Yunbo
    Xue, Li
    He, Hong
    CHINESE JOURNAL OF CATALYSIS, 2014, 35 (09) : 1504 - 1510
  • [46] Highly enhanced soot oxidation activity over 3DOM Co3O4-CeO2 catalysts by synergistic promoting effect
    Zhai, Guangjun
    Wang, Jinguo
    Chen, Zimei
    Yang, Shuaifeng
    Men, Yong
    JOURNAL OF HAZARDOUS MATERIALS, 2019, 363 : 214 - 226
  • [47] Synthesis of morphology-controllable mesoporous Co3O4 and CeO2
    Wang, Yangang
    Wang, Yanqin
    Ren, Jiawen
    Mi, Yan
    Zhang, Fengyuan
    Li, Changlin
    Liu, Xiaohui
    Guo, Yun
    Guo, Yanglong
    Lu, Guanzhong
    JOURNAL OF SOLID STATE CHEMISTRY, 2010, 183 (02) : 277 - 284
  • [48] Origin of Active Oxygen in a Ternary CuOx/Co3O4-CeO2 Catalyst for CO Oxidation
    Liu, Zhigang
    Wu, Zili
    Peng, Xihong
    Binder, Andrew
    Chai, Songhai
    Dai, Sheng
    JOURNAL OF PHYSICAL CHEMISTRY C, 2014, 118 (48): : 27870 - 27877
  • [49] Methane combustion modelling of wire gauze reactor coated with Co3O4-CeO2 Co3O4-PdO catalysts
    Jodlowski, P. J.
    Kryca, J.
    Iwaniszyn, M.
    Jedrzejczyk, R.
    Thomas, J.
    Kolodziej, A.
    Lojewska, J.
    CATALYSIS TODAY, 2013, 216 : 276 - 282
  • [50] Investigation of Co3O4–CeO2 Composite Oxide as Catalyst for the Decomposition of N2O
    Chenxi He
    Aixia Li
    Zhiming Liu
    Catalysis Surveys from Asia, 2020, 24 : 232 - 238
12345