| 从铁状态的变化研究球性活性炭中孔形成的机理 |
| |
| 引用本文： | 杨骏兵,康飞宇,黄正宏,凌立成,刘朗.从铁状态的变化研究球性活性炭中孔形成的机理[J].离子交换与吸附,2001,17(2):104-109. |
| |
| 作者姓名： | 杨骏兵 康飞宇 黄正宏 凌立成 刘朗 |
| |
| 作者单位： | 1. 清华大学材料科学与工程系,
2. 中国科学院山西煤炭化学研究所, |
| |
| 摘 要： | 利用穆斯堡尔谱、透射电子显微镜等表征手段研究了添加二茂铁后酚醛树脂基球形活性炭中孔形成的机理。结果表明，添加到酚醛树脂中的二茂铁在炭化阶段被还原为单质铁。单质铁对炭－反应有催化气化作用。在活化阶段，铁粒子周围的炭基体与水蒸汽的活化反应速率快，被刻蚀掉更多的炭，所以在其周围形成中孔。
|
| 关 键 词： | 中孔形成机理 球形活性炭 穆斯堡尔谱 透射电子显微镜 铁化合态 二茂铁 酚醛树酯 吸附剂 |
| 文章编号： | 1001-5493(2001)02-0104-06 |
| 修稿时间： | 2000年5月7日 |
AN INVESTIGATION ON MESOPORE EVOLUTION MECHANISM OF ACTIVATED CARBON SPHERES BY EXAMINING THE CHANGE OF IRON STATE |
| |
| YANG Junbing,KANG Feiyu,LING Licheng LIU Lang,HUANG Zhenghong.AN INVESTIGATION ON MESOPORE EVOLUTION MECHANISM OF ACTIVATED CARBON SPHERES BY EXAMINING THE CHANGE OF IRON STATE[J].Ion Exchange and Adsorption,2001,17(2):104-109. |
| |
| Authors: | YANG Junbing KANG Feiyu LING Licheng LIU Lang HUANG Zhenghong |
| |
| Institution: | YANG Junbing1 KANG Feiyu1 LING Licheng2 LIU Lang2 HUANG Zhenghong1 1Department of Materials Science and Engineering,Tsinghua University,Beijing 100084 2Institute of Coal Chemistry,Chinese Academy of Sciences,Taiyuan 030001 E-mail: jbyang@mail.tsing |
| |
| Abstract: | Mesopore evolution mechanism of phenolic resin-based activated carbon spheres was studied by M?ssbauer Spectroscopy and Transmission Electron Microscope. The results showed that ferrocene was reduced to iron during carbonization. More carbon surrounding the iron particles was ablated due to the acceleration effect of ferrite to the water vapor-carbon reaction, which generated mesopores. |
| |
| Keywords: | Mesopore evolution mechanism Activated carbon spheres M?ssbauer spectroscopy Transmission electron microscope |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
