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Prospective application of carbon-silica derived from SiC-Si sludge as a support for Fe catalysts

  • Environmental Engineering
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Abstract

A unique carbon-silica (30 wt%) material was prepared by H2O activation at 700 °C for 8 h with the carbon derived from SiC-Si sludge and the in-situ hydrolysis of the SiCl4 trapped in the pores of the carbon into silica. The BET surface area of the carbon-silica was 1,750 m2/g and the pore volume by QSDFT was 1.13 cm3/g, 40% of which stemmed from micropores smaller than 2 nm with 60% from mesopores between 2 nm and 50 nm. The activated carbon-silica was loaded with Fe by means of chemical vapor infiltration (CVI) and incipient wetness impregnation (IWI). A hydrogen temperature-programmed reduction test showed that the activated carbon-silica is a prospective support material for Fe catalysts and that the dispersion of Fe in the carbon-silica is higher with CVI than with IWI.

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Authors and Affiliations

  1. Department of Chemical Engineering, Kongju National University, 1223-24 Cheonan-Daero, Cheonan, Chungnam, 31080, Korea

    Mi Sun Lee, Kyun Young Park, Hoey Kyung Park, Tae Won Kang & Jong-Ki Jeon

  2. Rare Metals Research Center, Korea Institute of Geoscience and Mineral Resources, 124 Gwahang-ro, Yuseong-gu, Daejeon, 34132, Korea

    Hee Dong Jang

  3. Petroleum and Gas Research Laboratory, Korea Institute of Energy Research, 152 Gajeong-ro, Yuseong-gu, Daejeon, 34129, Korea

    Sang Sup Han

Authors
  1. Mi Sun Lee
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  2. Kyun Young Park
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  3. Hoey Kyung Park
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  4. Tae Won Kang
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  5. Hee Dong Jang
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  6. Sang Sup Han
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  7. Jong-Ki Jeon
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Correspondence to Hee Dong Jang or Jong-Ki Jeon.

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Lee, M.S., Park, K.Y., Park, H.K. et al. Prospective application of carbon-silica derived from SiC-Si sludge as a support for Fe catalysts. Korean J. Chem. Eng. 34, 100–104 (2017). https://doi.org/10.1007/s11814-016-0241-0

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  • DOI: https://doi.org/10.1007/s11814-016-0241-0

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