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Controlled Nanocrystal Deposition for Higher Degree of Reduction in Co/Al2O3 Catalyst

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Abstract

Alumina supported 5% Co catalyst was prepared, by the controlled nanocrystal deposition method using oleic acid as a capping agent, and tested for its activity and selectivity in Fischer–Tropsch synthesis. The catalyst exhibited facile reducibility of the cobalt species. The CO conversion and C5+ selectivity obtained on this size-controlled catalyst were higher than those observed on the catalysts prepared by impregnation and precipitation techniques. Decrease in the mobility of the nanoparticle towards the tetrahedral sites of alumina could be the reason for high reducibility, as the formation of cobalt aluminate was found to be considerably reduced during temperature programmed reduction.

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Acknowledgments

The authors would like to acknowledge the financial support of KEMCO and GTL Technology Development Consortium (Korea National Oil Corp., Daelim Industrial Co., LTD, Doosan Mecatec Co., LTD, Hyundai Engineering Co. LTD and SK Energy Co. LTD) under “Energy & Resources Technology Development Programs” of the Ministry of Knowledge Economy, Republic of Korea. PSSP thanks the Director, IICT, Hyderabad for sanctioning the sabbatical leave.

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Authors and Affiliations

  1. Alternative Chemicals/Fuel Research Center, Korea Research Institute of Chemical Technology, P.O. Box 107, Yusong, Daejon, 305-600, South Korea

    Yun-Jo Lee, Jo-Yong Park, Ki-Won Jun, Jong Wook Bae & P. S. Sai Prasad

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  1. Yun-Jo Lee
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  2. Jo-Yong Park
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  3. Ki-Won Jun
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Correspondence to Ki-Won Jun.

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Lee, YJ., Park, JY., Jun, KW. et al. Controlled Nanocrystal Deposition for Higher Degree of Reduction in Co/Al2O3 Catalyst. Catal Lett 130, 198–203 (2009). https://doi.org/10.1007/s10562-009-9862-9

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  • DOI: https://doi.org/10.1007/s10562-009-9862-9

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