高等学校化学学报

高等学校化学学报 ›› 1995, Vol. 16 ›› Issue (6): 955.

• 研究简报 • 上一篇    下一篇

活性磁铁矿上CO2直接还原成C的研究

张春雷1, 吴通好1, 杨洪茂1, 姜玉子1, 彭少逸2   

  1. 1. 吉林大学化学系, 长春, 130023;
    2. 中国科学院山西煤炭化学研究所
  • 收稿日期:1994-08-30 修回日期:1995-02-27 出版日期:1995-06-24 发布日期:1995-06-24
  • 通讯作者: 张春雷,男,26岁,博士研究生.
  • 作者简介:张春雷,男,26岁,博士研究生.

Reduction of Carbon Dioxide to Carbon with Active Cation-Excess Magnetite

ZHANG Chun-Lei1, WU Tong-Hao1, YANG Hong-Mao1, JIANG Yu-Zi1, PENG Shao-Yi2   

  1. 1. Department of Chemistry, Jilin University, Changchun, 130023;
    2. Shanxi Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan
  • Received:1994-08-30 Revised:1995-02-27 Online:1995-06-24 Published:1995-06-24

PDF (PC)

关键词: CO2还原, 阳离子过量, 磁铁矿, 炭, 氧

Abstract: The cation-deficient magnetite(Fe3+δO4,δ<0)was synthesized by the oxidation of Fe(OH)2suspensions at 358 K.The cation-excess magnetite(Fe3+δO4,δ>0)was obtained by flowing H2gas through magnetite with cation-deficient composition at 563 K.The stability of Fe3+δO4(δ>0)was investigated at various temperatures and atmosphere.The reactivty of Fe3+δO4(δ>0)of reducing CO2gas into carbon was studied at 358 K.The results confirm that CO2was nearly 100% decomposed into carbon,the oxygen in CO2is transferred in the form of O2-to the cation excess magnetite.The bigger the cation-excess extent of magnetite,the higher the decomposability of CO2,and the more O2is produced indirectly.

Key words: Reduction of, CO2, Cation-excess, Magnetite, Charcoal, Oxygen

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