| CHARACTERIZATION AND ADSORPTION PROPERTIES OF POROUS CARBON NANOFIBER GRANULES |
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| 作者姓名： | Jiuling Chen Qinghai Chen Yongdan Li |
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| 作者单位： | Department of Catalysis Science and Technology, School of Chemical Engineering, Tianjin University, Tianjin 300072, P.R. China |
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| 摘 要： | The properties of the porous granules produced by agglomeration of catalytically grown carbon nanofibers were investigated in this work. The single pellet crushing strength of the granules is high, e.g., 1.6-2.5 MPa. They have high specific surface areas, averaging 72-141 m^2·g^-1, and the majority of their pores are mesopores or macropores. The adsorption at 298 K of benzene or phenol on the granules is much lower than that on activated carbon and depends not only on the specific surface area of the carbon material but also on the sewing structure of the granules and the morphology of the carbon nanofibers. Treatment in dilute nitric acid appreciably reduces such adsorption.
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| 关 键 词： | 多孔渗水碳纳米纤维颗粒 吸附性 破碎强度 表面面积 |
| 收稿时间： | 2005-12-21 |
| 修稿时间： | 2005-12-212006-09-22 |
CHARACTERIZATION AND ADSORPTION PROPERTIES OF POROUS CARBON NANOFIBER GRANULES |
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| Jiuling Chen Qinghai Chen Yongdan Li.CHARACTERIZATION AND ADSORPTION PROPERTIES OF POROUS CARBON NANOFIBER GRANULES[J].China Particuology,2006,4(5):238-242. |
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| Authors: | Jiuling Chen Qinghai Chen Yongdan Li |
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| Abstract: | The properties of the porous granules produced by agglomeration of catalytically grown carbon nanofibers were investigated in this work. The single pellet crushing strength of the granules is high, e.g., 1.6-2.5 MPa. They have high specific surface areas, averaging 72-141 m2?g-1, and the majority of their pores are mesopores or macropores. The adsorption at 298 K of benzene or phenol on the granules is much lower than that on activated carbon and depends not only on the specific surface area of the carbon material but also on the sewing structure of the granules and the mor- phology of the carbon nanofibers. Treatment in dilute nitric acid appreciably reduces such adsorption. |
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| Keywords: | porous carbon nanofiber granules catalytically grown carbon nanofibers granule characterization adsorption property |
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