DECOMPOSITION OF CARBON-DIOXIDE TO CARBON BY HYDROGEN-REDUCED NI(II)-BEARING FERRITE

被引：58

作者：

KATO, H

KODAMA, T

TSUJI, M

TAMAURA, Y

CHANG, SG

机构：

[1] TOKYO INST TECHNOL,CARBON RECYCLING & UTILIZAT RES CTR,DEPT CHEM,MEGURO KU,TOKYO 152,JAPAN

[2] UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,BERKELEY,CA 94720

来源：

JOURNAL OF MATERIALS SCIENCE | 1994年 / 29卷 / 21期

关键词：

D O I：

10.1007/BF00349965

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Hydrogen-activated Ni(II)-bearing ferrite, Ni0.372+Fe0.492+Fe2.093+O4.00, showed a high rate of decomposition of carbon dioxide to carbon at 300 degrees C. This is based on the redox process of the Ni(II)-bearing ferrite with the spinel type of crystal structure. The rates of both activation by hydrogen gas and oxidation in carbon dioxide gas were much improved in the Ni(II)-bearing ferrite. The rate of decomposition was 0.178 mol h(-1) for the activated Ni(II)-bearing ferrite and 0.005 92 mol h(-1) for the activated magnetite in the batch mode, being 30 times larger. The rate of carbon dioxide decomposition was 16 times higher in the flow system in comparison with that of the activated magnetite.

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页码：5689 / 5692

页数：4

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