Ru promoted cobalt catalyst on gamma-Al2O3 support: Influence of pre-synthesized nanoparticles on Fischer-Tropsch reaction
Park, JoY; Lee, Y; Karandikar, PR; Jun, K; Bae, JW; Ha, KSu
| HERO ID | 1746671 |
|---|---|
| In Press | No |
| Year | 2011 |
| Title | Ru promoted cobalt catalyst on gamma-Al2O3 support: Influence of pre-synthesized nanoparticles on Fischer-Tropsch reaction |
| Authors | Park, JoY; Lee, Y; Karandikar, PR; Jun, K; Bae, JW; Ha, KSu |
| Journal | Journal of Molecular Catalysis A: Chemical |
| Volume | 344 |
| Issue | 1-2 |
| Page Numbers | 153-160 |
| Abstract | Effects of Ru promoted cobalt oxide nanoparticles on gamma-Al2O3 supported catalysts were studied for Fischer-Tropsch reaction. Homogeneously sized cobalt oxide nanoparticles with the different amount of ruthenium promoter were prepared by solvothermal method using oleic acid as capping agent. Pre-synthesized CoRuOx nanoparticles were then impregnated on gamma-Al2O3 support to prepare 5CoxRu/100Al(2)O(3) catalysts (5CoxRuAl), with the amount of ruthenium x = 0 to 0.1. The catalysts were characterized by XRD, TEM, TPR, EDX, H-2 chemisorption and O-2 titration methods and compared with the catalyst prepared by conventional impregnation method, i.e. i-5Co0.05RuAl. Interestingly, catalysts prepared by nanoparticle impregnation method showed higher H-2 uptake and better reducibility with the concomitant increase in the activity due to the homogeneous dispersion of the Ru promoter across entire the nanoparticles as compared to the catalyst prepared by conventional impregnation method. The intimate contact between cobalt and ruthenium enhanced the site density of cobalt which was responsible for the promotional results in the case of 5CoxRuAl catalysts. (C) 2011 Elsevier B.V. All rights reserved. |
| Doi | 10.1016/j.molcata.2011.05.022 |
| Wosid | WOS:000292799200019 |
| Is Certified Translation | No |
| Dupe Override | No |
| Comments | Source: Web of Science WOS:000292799200019 |
| Is Public | Yes |
| Keyword | CoRuOx nanoparticles; Pre-synthesis; Ru promoter; CoRu/Al2O3 catalyst; FT synthesis |