Promotion of low-temperature oxidation of CO over Pd supported on titania-coated ceria

被引:13
|
作者
Satsuma, Atsushi [1 ,2 ]
Yanagihara, Masatoshi [1 ]
Osaki, Kaoru [1 ]
Saeki, Yurina [1 ]
Liu, Heng [1 ]
Yamamoto, Yuta [3 ]
Arai, Shigeo [3 ]
Ohyama, Junya [1 ,2 ]
机构
[1] Nagoya Univ, Grad Sch Engn, Nagoya, Aichi 4648603, Japan
[2] Kyoto Univ, Unit Elements Strategy Initiat Catalysts & Batter, Kyoto 6158530, Japan
[3] Nagoya Univ, Ecotopia Sci Inst, Nagoya, Aichi 4648603, Japan
来源
RSC ADVANCES | 2014年 / 4卷 / 97期
关键词
CATALYTIC-ACTIVITY; PD/CEO2-TIO2; CATALYST; LATTICE OXYGEN; COMBUSTION; OXIDE; CEO2; REDUCTION; PALLADIUM; REDUCIBILITY; ACTIVATION;
D O I
10.1039/c4ra10167g
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The design of a metal oxide support for Pd was investigated to promote the oxidation of CO at lower temperatures. Through a screening study using pure metal oxides, Pd/CeO2 showed the highest activity above 100 degrees C, while homemade TiO2 was more effective below 100 degrees C as a support for Pd. Applying the advantages of CeO2 and TiO2, we proposed a TiO2-CeO2 support having a monolayer amount of surface TiO2 supported on CeO2. The Pd/TiO2-CeO2 catalyst showed higher activity than both Pd/TiO2 and Pd/CeO2, which was not achieved by using the CeO2-TiO2 mixed-oxide. The light-off temperature over Pd/TiO2-CeO2 was 100 degrees C lower than Pd/Al2O3. The effect of surface TiO2 was attributed to the promotion of the reduction-oxidation cycle of supported Pd.
引用
收藏
页码:54187 / 54193
页数:7
相关论文
共 50 条
  • [1] Copper oxide catalysts supported on ceria for low-temperature CO oxidation
    Zheng, XC
    Wang, SP
    Wang, SR
    Zhang, SM
    Huang, WP
    Wu, SH
    [J]. CATALYSIS COMMUNICATIONS, 2004, 5 (12) : 729 - 732
  • [2] Activity controlling factors for low-temperature oxidation of CO over supported Pd catalysts
    Satsuma, Atsushi
    Osaki, Kaoru
    Yanagihara, Masatoshi
    Ohyama, Junya
    Shimizu, Kenichi
    [J]. APPLIED CATALYSIS B-ENVIRONMENTAL, 2013, 132 : 511 - 518
  • [3] Sulfur promoted low-temperature oxidation of methane over ceria supported platinum catalysts
    Kylhammar, Lisa
    Carlsson, Per-Anders
    Skoglundh, Magnus
    [J]. JOURNAL OF CATALYSIS, 2011, 284 (01) : 50 - 59
  • [4] Design of Ceria Catalysts for Low-Temperature CO Oxidation
    Kim, Hyung Jun
    Jang, Myeong Gon
    Shin, Dongjae
    Han, Jeong Woo
    [J]. CHEMCATCHEM, 2020, 12 (01) : 11 - 26
  • [5] Low-temperature oxidation of carbon monoxide and methane over alumina and ceria supported platinum catalysts
    Carlsson, Per-Anders
    Skoglundh, Magnus
    [J]. APPLIED CATALYSIS B-ENVIRONMENTAL, 2011, 101 (3-4) : 669 - 675
  • [6] Influence of pretreatment conditions on low-temperature CO oxidation over Pd supported UiO-66 catalysts
    Bi, Fukun
    Zhang, Xiaodong
    Du, Quanxin
    Yue, Ke
    Wang, Ruizhuo
    Li, Fei
    Liu, Ning
    Huang, Yuandong
    [J]. MOLECULAR CATALYSIS, 2021, 509
  • [7] LOW-TEMPERATURE CO ADSORPTION AND STATE OF MOLYBDENA SUPPORTED ON ALUMINA, TITANIA, CERIA, AND ZIRCONIA - AN INFRARED SPECTROSCOPIC INVESTIGATION
    ZAKI, MI
    VIELHABER, B
    KNOZINGER, H
    [J]. JOURNAL OF PHYSICAL CHEMISTRY, 1986, 90 (14): : 3176 - 3183
  • [8] CO Oxidation over Bimetallic Au–Pd Supported on Ceria–Zirconia Catalysts: Effects of Oxidation Temperature and Au:Pd Molar Ratio
    Carol M. Olmos
    Lidia E. Chinchilla
    Juan J. Delgado
    Ana B. Hungría
    Ginesa Blanco
    Jose J. Calvino
    Xiaowei Chen
    [J]. Catalysis Letters, 2016, 146 : 144 - 156
  • [9] Low-Temperature CO Oxidation over Pd/SAPO-34 Catalyst
    Gu Jianfeng
    Agula Bao
    Jia Meilin
    Liu Yuping
    Zhaorigetu Bao
    Yuan Zhongyong
    [J]. CHINESE JOURNAL OF CATALYSIS, 2010, 31 (03) : 322 - 328
  • [10] Complete oxidation of CO, ethanol, and ethyl acetate over copper oxide supported on titania and ceria modified titania
    Larsson, PO
    Andersson, A
    [J]. JOURNAL OF CATALYSIS, 1998, 179 (01) : 72 - 89