Effect of pretreatment on Pd/Al2O3 catalyst for catalytic oxidation of o-xylene at low temperature

被引：49
|
作者：
Huang, Shaoyong [1 ]
Zhang, Changbin [1 ]
He, Hong [1 ]
机构：
[1] Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China
来源：
JOURNAL OF ENVIRONMENTAL SCIENCES | 2013年 / 25卷 / 06期
基金：
中国国家自然科学基金;
关键词：
Pd/Al2O3; o-xylene; catalytic oxidation; noble metal; VOC; SUPPORTED PALLADIUM CATALYSTS; METHANE OXIDATION; AROMATIC-HYDROCARBONS; COMBUSTION; ADSORPTION; ALUMINA; PD; TOLUENE; XPS;
D O I：
10.1016/S1001-0742(12)60169-7
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The effect of pretreatment on Pd/Al2O3 catalysts for the catalytic oxidation of o-xylene at low temperature was studied by changing the pretreatment and testing conditions. The fresh and pretreated Pd/Al2O3 catalysts were characterized by transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD). The results showed that the pretreatment dramatically changed the Pd/PdO ratio and then significantly affected the Pd/Al2O3 activity; while the pretreatment had not much influence on Pd particle size. The Pd/Al2O3 pre-reduced at 300 degrees C/400 degrees C, which has fully reduced Pd species, showed the highest activity; while the fresh Pd/Al2O3, which has fully oxidized Pd species, presented the worst performance, indicating the Pd chemical state plays an important role in the catalytic activity for the o-xylene oxidation. It is concluded that metallic Pd is the active species on the Pd/Al2O3 catalyst for the catalytic oxidation of o-xylene at low temperature.
引用
收藏
页码：1206 / 1212
页数：7
相关论文
共 50 条
  • [1] Effect of pretreatment on Pd/Al2O3catalyst for catalytic oxidation of o-xylene at low temperature
    Shaoyong Huang
    Changbin Zhang
    Hong He
    [J]. Journal of Environmental Sciences, 2013, (06) : 1206 - 1212
  • [2] Complete oxidation of o-xylene over Pd/Al2O3 catalyst at low temperature
    Huang, Shaoyong
    Zhang, Changbin
    He, Hong
    [J]. CATALYSIS TODAY, 2008, 139 (1-2) : 15 - 23
  • [3] Effect of different reduction methods on Pd/Al2O3 for o-xylene oxidation at low temperature
    Mingyu Fan
    Yafei Wang
    Jianghao Zhang
    Changbin Zhang
    Xue Han
    [J]. Journal of Environmental Sciences, 2023, 125 (03) : 95 - 100
  • [4] Promotion of catalytic performance of Pd/Al2O3 for o-xylene oxidation by morphological control
    Wang, Yafei
    Liu, Xiaoyang
    Meng, Liwei
    Liu, Tongxun
    Qi, Qianqian
    Han, Xue
    Ma, Jinzhu
    [J]. Chemical Engineering Journal, 2023, 472
  • [5] Promotion of catalytic performance of Pd/Al2O3 for o-xylene oxidation by morphological control
    Wang, Yafei
    Liu, Xiaoyang
    Meng, Liwei
    Liu, Tongxun
    Qi, Qianqian
    Han, Xue
    Ma, Jinzhu
    [J]. CHEMICAL ENGINEERING JOURNAL, 2023, 472
  • [6] Catalytic Oxidation of o-Xylene over Pd/Y-Al2O3 Catalysts
    Hu Ling-Xiao
    Wang Lian
    Wang Fei
    Zhang Chang-Bin
    He Hong
    [J]. ACTA PHYSICO-CHIMICA SINICA, 2017, 33 (08) : 1681 - 1688
  • [7] Activity of Pd/Al2O3 and Ru/Al2O3 catalysts in the hydrogenation of o-xylene -: Effect of thiophene
    Arcoya, A
    Seoane, XL
    Gómez-Sainero, LM
    [J]. APPLIED SURFACE SCIENCE, 2003, 211 (1-4) : 341 - 351
  • [8] Kinetics and stereoselectivity of o-xylene hydrogenation over Pd/Al2O3
    Neyestanaki, AK
    Mäki-Arvela, P
    Backman, H
    Karhu, H
    Salmi, T
    Väyrynen, J
    Murzin, DY
    [J]. JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2003, 193 (1-2) : 237 - 250
  • [9] Effect of different reduction methods on Pd/Al 2 O 3 for o -xylene oxidation at low temperature
    Fan, Mingyu
    Wang, Yafei
    Zhang, Jianghao
    Zhang, Changbin
    Han, Xue
    [J]. JOURNAL OF ENVIRONMENTAL SCIENCES, 2023, 125 : 95 - 100
  • [10] Kinetics and modeling of o-xylene hydrogenation over Pt/γ-Al2O3 catalyst
    Neyestanaki, AK
    Backman, H
    Mäki-Arvela, P
    Wärna, J
    Salmi, T
    Murzin, DY
    [J]. CHEMICAL ENGINEERING JOURNAL, 2003, 91 (2-3) : 271 - 278
12345