View More View Less
  • 1 Department of Chemical Engineering, Faculty of Engineering, Burapha University, 169 Long-Hard Bangsaen Road, Saen Sook, Mueang, Chonburi, 20131, Thailand
  • 2 Center of Excellence on Catalysis and Catalytic Reaction Engineering, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand
Restricted access

Abstract

La-modified ZrO2 with 10 mol% La was prepared by three different methods, namely co-precipitation, impregnation, and mechanical mixing and employed as cobalt catalyst supports. The use of La-modified ZrO2 prepared by mechanical mixing resulted in higher cobalt dispersion and higher CO hydrogenation activity than those supported on pure oxide (La2O3 and ZrO2) and La-modified ZrO2 obtained by the other methods. As revealed by XRD and TEM, an intimate contact and/or incorporation of La atoms in ZrO2 may occur on the La-modified ZrO2 prepared by co-precipitation and impregnation, which induced a stronger interaction between cobalt and the support. On the other hand, the presence of amorphous La2O3 in ZrO2 by mechanical mixing facilitated cobalt reducibility as shown by lower reduction temperature in the TPR profile.

  • 1.

    JG Goodwin Jr 1991 Current directions in Fischer–Tropsch catalysis American Chemical Society, Books and Journals Division Washington.

    • Search Google Scholar
    • Export Citation
  • 2.

    Withers, HP KF Eliezer Jr Mitchell, JW. 1990. Slurry-phase Fischer–Tropsch synthesis and kinetics-studies over supported cobalt carbonyl derived catalysts. Ind Eng Chem Res. 29 9 18071814 .

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

    Iglesia, E. 1997. Design, synthesis, and use of cobalt-based Fischer–Tropsch synthesis catalysts. Appl Catal A. 161 1–2 5978.

  • 4.

    Brady, RC, Petit, RJ. 1981. On the mechanism of the Fischer–Tropsch reaction: the chain propagation step. J Am Chem Soc. 103 5 12871289 .

  • 5.

    Haddad, GJ, Chen, B JG Goodwin Jr 1996. Characterization of La3+-promoted Co/SiO2 catalysts. J Catal. 160:4351 .

  • 6.

    Panpranot, J, Taochaiyaphom, N, Praserthdam, P. 2005. Glycothermal synthesis of nanocrystalline zirconia and their application as cobalt catalyst supports. Mater Chem Phys. 94 2–3 207212 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 7.

    Enache, DI, Roy-Auberger, M, Revel, R. 2004. Differences in the characteristics and catalytic properties of cobalt-based Fischer–Tropsch catalysts supported on zirconia and alumina. Appl Catal A Gen. 268 1–2 5160 .

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

    Soisuwan, S, Panpranot, J, Trimm, DL, Praserthdam, P. 2006. A study of alumina-zriconia mixed oxides prepared by the modified Pechini as cobalt catalyst supports in CO hydrogenation. Appl Catal A Gen. 303 2 268272 .

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

    Jongsomjit, B, Kittiruangrayub, S, Praserthdam, P. 2007. Study of cobalt dispersion onto the mixed nano-SiO2–ZrO2 supports and its application as a catalyst phase. Mater Chem Phys. 105 1 1419 .

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

    Chitpong, N, Praserthdam, P, Jongsomjit, B. 2009. A study on characteristics and catalytic properties of Co/ZrO2-B catalysts towards methanation. Catal Lett. 128 1–2 119126 .

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

    Ledford, JS, Houalla, M, Proctor, A, Hercules, DM, Petrakis, L. 1989. Influence of lanthanum on the surface structure and carbon monoxide hydrogenation activity of supported cobalt catalysts. J Phys Chem. 93 18 67706777 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 12.

    Khodakov, AY, Chu, W, Pascal, F. 2007. Advance in the development of novel Fischer–Tropsch catalyst for synthesis of long chain hydrocarbon and clean fuel. Chem Rev. 107 5 16921744 .

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

    Wang, T, Ding, Y, , Y, Zhu, H, Lin, L. 2008. Influence of lanthanum on the performance of Zr–Co/activatedcarboncatalysts on Fischer–Tropschsynthesis. J Natur Gas Chem. 17 2 153158 .

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

    Vada, S, Chen, B, Goodwin, JG. 1995. Isotropic transient of La promotion of Co/Al2O3 on CO hydrogenation. J Catal. 153:224231 .

  • 15.

    Barrault, J, Guilleminot, A, Achard, JC, Paul-Boncour, V, Percheron-Guegan, A. 1986. Hydrogenation of carbon monoxide on carbon-supported cobalt rare earth catalyst. Appl Catal. 21 2 307312 .

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

    Reuel, RC, Bartholomew, CH. 1984. Thestiochiometries of H2 and CO adsorptions on cobalt: effects of support and preparation. J Catal. 85 1 6377 .

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

    Rojanapipatkul, S, Jongsomjit, B. 2008. Synthesis of cobalt on cobalt aluminate via solvothermal method and its catalytic properties for carbon monoxide hydrogenation. Catal Commun. 10:232236 .

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

    Kelly, JR, Denry, I. 2008. Stabilized zirconia as a structural ceramic: an overview. Dent Mater. 24 3 289298 .

  • 19.

    Thangadurai, P, Sabarinathan, V, Bose, CA, Ramasamy, S. 2004. Conductive behavior of a cubic/tetragonal phase stabilized nanocrystalline La2O3–ZrO2. J Phys Chem Solids. 65 11 19051912 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 20.

    Pollard, MJ, Weinstock, BA, Bitterwolf, TE, Griffiths, PR, Newbery, AP JB Paine III 2008. A mechanistic study of the low-temperature conversion of carbon monoxide to carbon dioxide over a cobalt oxide catalyst. J Catal. 254 2 218225 .

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

    Zhang, Y, Wei, D, Hammache, S JG Goodwin Jr 1999. Effect of water vapor on the reduction of Ru-promoted Co/Al2O3. J Catal. 188:281290 .

  • 22.

    Nieminen, M, Putkonen, M, NiinistÖ, L. 2001. Formation and stability of lanthanum oxide thin films prepared by sol gel method. Appl Surf Sci. 174 2 155166 .

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

    AM De Asha Chritchley, JTS, Nix, RM. 1998. Molecular adsorption characteristics of lanthanum oxide surfaces: the interaction of water with oxide overlayers grown on Cu(111). Surf Sci. 405 2–3 201214 .

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

    Petunchi, JO, Ulla, MA, Marco, JA, Lombardo, EA. 1981. Characterization of hydrogenation active sites on LaCoO3 perovskite. J Catal. 70:356363 .

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

    Nguyen, TT, Houshang, A, Serge, K. 2008. Characterization and reactivity of nanoscale La(Co, Cu)O3 perovskite catalyst precursors for CO hydrogenation. J Solid State Chem. 181 8 20062019 .

    • Crossref
    • Search Google Scholar
    • Export Citation