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Catalytic reduction of carbon dioxide on Ni Cu alloys

Author

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  • Kitayama, Yoshie
  • Watanabe, Yoshinori
  • Muramatsu, Kenji
  • Kodama, Tatsuya

Abstract

Catalytic reduction of CO2 with H2 was studied on Ni/SiO2, Ni1−χCuχ/SiO2 (χ = 0.05−0.9) and Cu/SiO2 in a closed circulating reaction system in order to obtain a highly active and selective catalyst for CO formation. The yield of CO from CO2 + H2 on Cu/SiO2 was about 60% and its selectivity was 97% or more. In a Cu-rich region, Ni Cu catalysts exhibited high selectivity for CO formation, while CH4 was produced predominantly in a Ni-rich region. The activity of Ni0.1Cu0.9/SiO2 for the selective reduction of CO2 to CO was enhanced by twice that of Cu alone by the addition of small amounts of Ni.

Suggested Citation

  • Kitayama, Yoshie & Watanabe, Yoshinori & Muramatsu, Kenji & Kodama, Tatsuya, 1997. "Catalytic reduction of carbon dioxide on Ni Cu alloys," Energy, Elsevier, vol. 22(2), pages 177-182.
    • Handle: RePEc:eee:energy:v:22:y:1997:i:2:p:177-182
    DOI: 10.1016/S0360-5442(96)00096-5
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