View More View Less
  • 1 Sinopec Research Institute of Petroleum Engineering, Beijing 100101, China
  • | 2 Department of Chemistry, Nankai University, Tianjin 300071, China
Restricted access

Abstract

Ternary nanostructured CuO/Ti0.8Ce0.2O2 catalysts were prepared by a one-step surfactant-assisted method of nanoparticle assembly. The textural and structural properties of the CuO/Ti0.8Ce0.2O2 catalysts were characterized by XRD, TGA, BET, XPS and H2-TPR. Their catalytic performance for low-temperature CO oxidation was studied by using a catlab system. CuO supported on binary Ti0.8Ce0.2O2 support showed higher catalytic activity than CuO supported on single CeO2 or TiO2 support. The calcination temperature had a remarkable influence on the catalytic activity of the CuO/Ti0.8Ce0.2O2 catalysts. The CuO/Ti0.8Ce0.2O2 catalyst calcined at 500 °C exhibited the highest catalytic activity with T50% and T100% at 82 and 123 °C, respectively. According to the XRD, BET and H2-TPR analyses, the higher surface areas and more highly dispersed small particle size CuO should be responsible for the high catalytic activity of catalysts.

  • 1.

    Xu, HY, Chu, W, Luo, JJ, Liu, M (2010)New Au/FeOx/SiO2 catalysts using deposition–precipitation for low-temperature carbon monoxide oxidation. Catal Comm 11:812815 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 2.

    Seo, PW, Choi, HJ, Hong, SI, Hong, SC (2010)A study on the characteristics of CO oxidation at room temperature by metallic Pt. J Hazard Mater 178:917925 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 3.

    Kunkalekar, RK, Salker, AV (2010)Low temperature carbon monoxide oxidation over nanosized silver doped manganese dioxide catalysts. Catal Comm 12:193196 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 4.

    Mariño, F, Descorme, C, Duprez, D (2005)Supported base metal catalysts for the preferential oxidation of carbon monoxide in the presence of excess hydrogen (PROX). Appl Catal B 58:175183 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 5.

    Huang, J, Wang, SR, Zhao, YQ, Wang, XY, Wang, SP, Wu, SH, Zhang, SM, Huang, WP (2006)Synthesis and characterization of CuO/TiO2 catalysts for low-temperature CO oxidation. Catal Comm 7:10291034 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 6.

    Cheng, T, Fang, Z, Hu, Q, Han, K, Yang, X, Zhang, Y (2007)Low-temperature CO oxidation over CuO/Fe2O3 catalysts. Catal Comm 8:11671171 .

  • 7.

    Astudillo, J, Águila, G, Díaz, F, Guerrero, S, Araya, P (2010)Study of CuO–CeO2 catalysts supported on SiO2 on the low-temperature oxidation of CO. Appl Catal A 381:169176 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 8.

    Ma, XD, Sun, HW, Sun, Q, Feng, X, Guo, HW, Fan, B, Zhao, S, He, X, Lv, L (2011)Catalytic oxidation of CO and o-DCB over CuO/CeO2 catalysts supported on hierarchically porous silica. Catal Comm 12:426430 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 9.

    Shiau, CY, Ma, MW, Chuang, CS (2006)CO oxidation over CeO2-promoted Cu/γ–Al2O3 catalyst: effect of preparation method. Appl Catal A 301:8995 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 10.

    Zheng, XC, Wu, SH, Wang, SP, Wang, SR, Zhang, SM, Huang, WP (2005)The preparation and catalytic behavior of copper-cerium oxide catalysts for low-temperature carbon monoxide oxidation. Appl Catal A 283:217223 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 11.

    Zhu, H (2004)Pd/CeO2/TiO2 catalyst for CO oxidation at low temperature: a TPR study with H2 and CO as reducing agents. J Catal 225:267277 .

  • 12.

    Lamallem, M, Ayadi, HE, Gennequin, C, Cousin, R, Siffert, S, Aïssi, F, Aboukaïs, A (2008)Effect of the preparation method on Au/Ce–Ti–O catalysts activity for VOCs oxidation. Catal Today 137:367372 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 13.

    Gennequin, C, Lamallem, M, Cousin, R, Siffert, S, Aïssi, F, Aboukaïs, A (2007)Catalytic oxidation of VOCs on Au/Ce–Ti–O. Catal Today 122:301306 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 14.

    Zou, ZQ, Meng, M, Guo, LH, Zha, YQ (2009)Synthesis and characterization of CuO/Ce1−xTixO2 catalysts used for low-temperature CO oxidation. J Hazard Mater 163:835842 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 15.

    Zhou, RX, Yu, TM, Jiang, XY, Chen, F, Zheng, XM (1999)Temperature-programmed reduction and temperature-programmed desorption studies of CuO/ZrO2 catalysts. Appl Surf Sci 148:263270 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 16.

    Lin, R, Luo, MF, Zhong, YJ, Yan, ZL, Liu, GY, Liu, WP (2003)Comparative study of CuO/Ce0.7Sn0.3O2, CuO/CeO2 and CuO/SnO2 catalysts for low-temperature CO oxidation. Appl Catal A 255:331336 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 17.

    Liu, Z, Zhou, R, Zheng, X (2008)Preferential oxidation of CO in excess hydrogen over a nanostructured CuO–CeO2 catalyst with high surface areas. Catal Comm 9:21832186 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 18.

    Tang, X, Zhang, B, Li, Y, Xu, Y, Xin, Q, Shen, W (2005)CuO/CeO2 catalysts: redox features and catalytic behaviors. Appl Catal A 288:116125 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 19.

    Yao, HC, Yao, YFY (1984)Ceria in automotive exhaust catalysts: I oxygen storage. J Catal 86:254265 .

  • 20.

    Jiang, XY, Ding, GH, Lou, LP, Chen, YX, Zheng, XM (2004)Catalytic activities of CuO/TiO2 and CuO–ZrO2/TiO2 in NO + CO reaction. J Mol Catal A 218:187195 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 21.

    Zheng, XC, Wang, SP, Wang, SR, Zhang, SM, Huang, WP, Wu, SH (2005)Preparation, characterization and catalytic properties of CuO/CeO2 system. Mater Sci Eng C 25:516520 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 22.

    Wang, SP, Zhang, TY, Wang, XY, Zhang, SM, Wang, SR, Huang, WP, Wu, SH (2007)Synthesis, characterization and catalytic activity of Au/Ce0.8Zr0.2O2 catalysts for CO oxidation. J Mol Catal A 272:4552 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 23.

    Nelson, AE, Schulz, KH (2003)Surface chemistry and microstructural analysis of CexZr1−xO2−y model catalyst surfaces. Appl Surf Sci 210:206221 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 24.

    Zhang, YW, Si, R, Liao, CS, Yan, CH, Xiao, CX, Kou, Y (2003)Facile alcohothermal synthesis, size-dependent ultraviolet absorption and enhanced CO conversion activity of ceria nanocrystals. J Phy Chem B 107:1015910167 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 25.

    Larsson, PO, Andersson, A (1998)Complete oxidation of CO ethanol, and ethyl acetate over copper oxide supported on titania and ceria modified titania. J Catal 179:7289 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 26.

    Avgouropoulos, G, Ioannides, T (2003)Selective CO oxidation over CuO–CeO2 catalysts prepared via the urea–nitrate combustion method. Appl Catal A 244:155167 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 27.

    Wang, SP, Zheng, XC, Wang, XY, Wang, SR, Zhang, SM, Yu, LH, Huang, WP, Wu, SH (2005)Comparison of CuO/Ce0.8Zr0.2O2 and CuO/CeO2 catalysts for low-temperature CO oxidation. Catal Lett 105:163168 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 28.

    Kundakovic, L, Flytzani-Stephanopoulos, M (1998)Reduction characteristics of copper oxide in cerium and zirconium oxide systems. Appl Catal A 171:1329 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 29.

    Zhu, HY, Shen, MM, Kong, Y, Hong, JM, Hu, YH, Liu, TD, Dong, L, Chen, Y, Jian, C, Liu, Z (2004)Characterization of copper oxide supported on ceria-modified anatase. J Mol Catal A 219:155164 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 30.

    Busca, G, Costantino, U, Marmottini, F, Montanari, T, Patrono, P, Pinzari, F, Ramis, G (2006)Methanol steam reforming over ex-hydrotalcite Cu–Zn–Al catalysts. Appl Catal A 310:7078 .

    • Crossref
    • Search Google Scholar
    • Export Citation