Catalytic oxidation of methane at low temperature over Pd-containing perovskite type oxides

被引:6
作者
Wu, Yuehui [1 ,2 ]
Lu, Laitao [2 ]
机构
[1] Nanchang Hangkong Univ, Dept Chem Mat, Nanchang 330063, Peoples R China
[2] Nanchang Univ, Inst Appl Chem, Nanchang 330069, Peoples R China
来源
REACTION KINETICS AND CATALYSIS LETTERS | 2008年 / 93卷 / 02期
关键词
palladium-substituted; supported; perovskite-type oxide; catalytic oxidation;
D O I
10.1007/s11144-008-5244-3
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
Two types of catalysts with the same palladium loading, palladium-substituted perovskite La0.95Ce0.05Co0.95Pd0.05O3 and perovskite-supported palladium catalyst Pd/La0.95Ce0.05CoO3 were prepared by the combustion and impregnation method, respectively. The catalyst structure was characterized by X-ray diffraction (XRD), BET measurements, temperature-programmed reduction (TPR) and the methane oxidation activity of the catalysts were investigated in detail. It was found that the activity performance of Pd/La0.95Ce0.05CoO3 was higher than that of La0.95Ce0.05Co0.95Pd0.05O3, and this was owing to the ease of reduction of palladium in the former.
引用
收藏
页码:305 / 313
页数:9
相关论文
共 15 条
  • [1] FRANSSON T, 2007, CATAL COMMUN, V1421, P8
  • [2] KUCHARCZYK B, 2004, CATAL TODAY, V121, P90
  • [3] Novel Pd/TiO2-ZrO2 catalyst for methane total oxidation at low temperature and their 18O-isotope exchange behavior
    Lin, W
    Lin, L
    Zhu, YX
    Xie, YC
    Scheurell, K
    Kernnitz, E
    [J]. JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2005, 226 (02) : 263 - 268
  • [4] LIU JW, 2007, MATER CHEM PHYS, V185, P105
  • [5] PERSSON K, 2006, J CATAL, V14, P243
  • [6] PERSSON K, 2005, CATAL TODAY, V479, P100
  • [7] PUDMICH G, 2000, SOLID STATE IONICS, V433, P135
  • [8] RAMADJ O, 2007, J NAT GAS CHEM, V258, P16
  • [9] Ln1-xSrxMnO3 (Ln = Pr, Nd, Sm and Gd) as the cathode material for solid oxide fuel cells
    Sakaki, Y
    Takeda, Y
    Kato, A
    Imanishi, N
    Yamamoto, O
    Hattori, M
    Iio, M
    Esaki, Y
    [J]. SOLID STATE IONICS, 1999, 118 (3-4) : 187 - 194
  • [10] Methane combustion over PdO-alumina catalysts:: The effect of palladium precursors
    Simplício, LMT
    Brandao, ST
    Sales, EA
    Lietti, L
    Bozon-Verduraz, F
    [J]. APPLIED CATALYSIS B-ENVIRONMENTAL, 2006, 63 (1-2) : 9 - 14