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http://dx.doi.org/10.4191/KCERS.2002.39.8.801

Preparation and Characterization of Ferrite Supported on Porous Ceramic Fiber Composites for Co2 Decomposition  

Lee, Bong-Soo (Division of Ceramic and Chemical Engineering, Myongji University)
Kim, Myung-Soo (Division of Ceramic and Chemical Engineering, Myongji University)
Choi, Seung-Chul (Department of Materials Science and Engineering, Ajou University)
Oh, Jae-Hee (Department of Ceramic Engineering, Inha University)
Lee, Jae-Chun (Division of Ceramic and Chemical Engineering, Myongji University)
Publication Information
Journal of the Korean Ceramic Society / v.39, no.8, 2002 , pp. 801-806 More about this Journal
Abstract
The decomposition and/or conversion of carbon dioxide to carbon have been studied using oxygen-deficient ferrites for the reduction of $CO_2$ emission to the atmosphere. In this work, the homogeneous precipitation method using urea decomposition was employed to induce in situ precipitation of Ni ferrite($Ni_{0.4}Fe_{2.6}O_4$) on the porous ceramic fiber support (50 mm diameter${\times}$10 mm thickness). Effects of ferrite loading conditions on the CO2 decomposition efficiency were discussed in this paper. Removal of residual chloride ions and urea by solvent exchange from the porous media after ferrite deposition apparently helps to form spinel ferrite, but does not increase the efficiency of $CO_2$ decomposition. Porous ceramic fiber composites containing 20 wt% (1g) ferrite samples showed 100% efficiency for $CO_2$decomposition during the first three minutes, but the efficiency decreased rapidly after the elapsed time of ten minutes. The characteristic reduction time for the $CO_2$ decomposition efficiency was estimated as about 3∼7 min.
Keywords
$Co_2$ decomposition; Oxygen-deficient perrites; Homogeneous precipitation; Porous support;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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