Promoting effects of lanthanum on the catalytic activity of Au/TiO2 nanotubes for CO oxidation

被引：23
|
作者：
Zhang, Ping [1 ,2 ]
Guo, Jiuli [1 ,2 ]
Zhao, Peng [1 ,2 ]
Zhu, Bolin [1 ,2 ]
Huang, Weiping [1 ,2 ]
Zhang, Shoumin [1 ,2 ]
机构：
[1] Nankai Univ, Key Lab Adv Energy Mat Chem MOE, Tianjin Key Lab Met & Mol Based Mat Chem, Tianjin 300071, Peoples R China
[2] Nankai Univ, Dept Chem, Tianjin 300071, Peoples R China
来源：
RSC ADVANCES | 2015年 / 5卷 / 16期
基金：
中国国家自然科学基金;
关键词：
SUPPORTED GOLD CATALYSTS; FORMATION MECHANISM; TIO2; NANOTUBES; NANOPARTICLES; TEMPERATURE; PHOTOCATALYSTS; DEGRADATION; PERFORMANCE;
D O I：
10.1039/c4ra14133d
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Lanthanum-modified TiO2 nanotube (NT) supported gold catalysts were prepared. The linear relationship between actual and nominal lanthanum concentrations was found. The possible formation mechanism of La-modified TiO2 NTs was suggested. The effects of calcination temperature, La concentration and gold loading on the catalytic activity for CO oxidation were investigated. Au/La2O3-TiO2NTs (Au: 4.18%, La: 1.62%) calcined at 300 degrees C could completely convert CO at 30 degrees C. T-100% of La-free catalyst was 60 degrees C. The catalytic activity of Au/TiO2-NTs could be improved by modification with lanthanum.
引用
收藏
页码：11989 / 11995
页数：7
相关论文
共 50 条
  • [41] Influence of the crystalline phase and surface area of the TiO2 support on the CO oxidation activity of mesoporous Au/TiO2 catalysts
    Denkwitz, Y.
    Makosch, M.
    Geserick, J.
    Hoermann, U.
    Selve, S.
    Kaiser, U.
    Huesing, N.
    Behm, R. J.
    APPLIED CATALYSIS B-ENVIRONMENTAL, 2009, 91 (1-2) : 470 - 480
  • [42] Influence of the Preparation Method of Au, Pd, Pt, and Rh/TiO2 Nanostructures and Their Catalytic Activity on the CO Oxidation at Low Temperature
    Camposeco, R.
    Torres, A. E.
    Zanella, R.
    TOPICS IN CATALYSIS, 2022, 65 (7-8) : 798 - 816
  • [43] Influence of the Preparation Method of Au, Pd, Pt, and Rh/TiO2 Nanostructures and Their Catalytic Activity on the CO Oxidation at Low Temperature
    R. Camposeco
    A. E. Torres
    R. Zanella
    Topics in Catalysis, 2022, 65 : 798 - 816
  • [44] Insights into Catalytic Oxidation at the Au/TiO2 Dual Perimeter Sites
    Green, Isabel X.
    Tang, Wenjie
    Neurock, Matthew
    Yates, John T., Jr.
    ACCOUNTS OF CHEMICAL RESEARCH, 2014, 47 (03) : 805 - 815
  • [45] Effects of ozone pretreatment on the performance of Au/TiO2 catalyst for CO oxidation reaction
    Ho, K. Y.
    Yeung, K. L.
    JOURNAL OF CATALYSIS, 2006, 242 (01) : 131 - 141
  • [46] Influence of Au Particle Size on Au/TiO2 Catalysts for CO Oxidation
    Du, Mingming
    Sun, Daohua
    Yang, Hongwei
    Huang, Jiale
    Jing, Xiaohan
    Odoom-Wubah, Tareque
    Wang, Haitao
    Jia, Lishan
    Li, Qingbiao
    JOURNAL OF PHYSICAL CHEMISTRY C, 2014, 118 (33): : 19150 - 19157
  • [47] Evaluation of the Au size effect:: CO oxidation catalyzed by Au/TiO2
    Overbury, S. H.
    Schwartz, Viviane
    Mullim, David R.
    Yan, Wenfu
    Dai, Sheng
    JOURNAL OF CATALYSIS, 2006, 241 (01) : 56 - 65
  • [48] Defect Effects on TiO2 Nanosheets: Stabilizing Single Atomic Site Au and Promoting Catalytic Properties
    Wan, Jiawei
    Chen, Wenxing
    Jia, Chuanyi
    Zheng, Lirong
    Dong, Juncai
    Zheng, Xusheng
    Wang, Yu
    Yan, Wensheng
    Chen, Chen
    Peng, Qing
    Wang, Dingsheng
    Li, Yadong
    ADVANCED MATERIALS, 2018, 30 (11)
  • [49] O2 adsorption and CO oxidation on TiO2 and Au/TiO2 surfaces.
    Selloni, A
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2003, 225 : U688 - U688
  • [50] Preparation of Au/TiO2 catalysts by suspension spray reaction method and their catalytic property for CO oxidation
    Fan, L
    Ichikuni, N
    Shimazu, S
    Uematsu, T
    APPLIED CATALYSIS A-GENERAL, 2003, 246 (01) : 87 - 95
12345