Catalytic removal of SO₂ over ammonia-activated carbon fibers

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• 作者：Li ; Kaixi ; Ling ; Licheng ; Lu ; Chunxiang ; Qiao ; Wenming ; Liu ; Zhenyu ; Liu ; Lang ; Mochida ; I.
• 关键词：A. Activated carbon ; Carbon fiber ; D. Catalytic properties ; Surface properties
• 刊名：Carbon
• 出版年：2001
• 期刊代码：10_00086223
• 类别：ms
• 出版时间：October, 2001
• 卷：39
• 期：12
• 页码：1803-1808
• 文件大小：110 K

摘要

Nitrogen-containing functional groups were introduced onto the surface of activated carbon fibers (ACF) by activating an ethylene tar pitch-based carbon fiber with ammonia water. The activity of the ACF for the conversion of SO₂ to aq. H₂SO₄ in the presence of H₂O and O₂ is significantly higher than that of other commercial ACF studied before. Both the SO₂ adsorption capacity and oxidation activity of ACF are enhanced very much by the nitrogen-containing functional groups.