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Carbon dioxide decomposition into carbon with the rhodium-bearing magnetite activated by H2-reduction

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Abstract

The CO2 decomposition into carbon with the rhodium-bearing activated magnetite (Rh-AM) was studied in comparison with the activated magnetite (AM). The Rh-AM and the AM were prepared by flowing hydrogen gas through the rhodium-bearing magnetite (Rh-M) and the magnetite (M), respectively. The rate of activation of the Rh-M to the Rh-AM was about three times higher than that of the M to the AM at 300 °C. The reactivity for the CO2 decomposition into carbon with the Rh-AM (70% CO2 was decomposed in 40 min) was higher than that with the AM (30% in 40 min) at 300 °C. The Rh-M was activated to the Rh-AM at a lower temperature of 250 °C, and the Rh-AM decomposed CO2 into carbon at 250 °C. On the other hand, the M was little activated at 250 °C.

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Authors and Affiliations

  1. Department of Chemistry, Research Center for Carbon Recycling and Utilization, Tokyo Institute of Technology, Ookayama, Meguro-ku, 152, Tokyo, Japan

    K. Akanuma, K. Nishizawa, T. Kodama, M. Tabata, K. Mimori, T. Yoshida, M. Tsuji & Y. Tamaura

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  1. K. Akanuma
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  2. K. Nishizawa
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  3. T. Kodama
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  4. M. Tabata
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  5. K. Mimori
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  6. T. Yoshida
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  7. M. Tsuji
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  8. Y. Tamaura
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Akanuma, K., Nishizawa, K., Kodama, T. et al. Carbon dioxide decomposition into carbon with the rhodium-bearing magnetite activated by H2-reduction. Journal of Materials Science 28, 860–864 (1993). https://doi.org/10.1007/BF00400865

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  • DOI: https://doi.org/10.1007/BF00400865

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