模板剂对介孔碳孔道结构及有序性的影响

张雅心;张学军*

北京化工大学学报(自然科学版) ›› 2010, Vol. 37 ›› Issue (5) : 83-87.

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北京化工大学学报(自然科学版) ›› 2010, Vol. 37 ›› Issue (5) : 83-87.
材料科学与工程

模板剂对介孔碳孔道结构及有序性的影响

  • 张雅心;张学军*
作者信息 +

Effects of the template on pore size and extent of order of mesoporous carbons

  • ZHANG YaXin;ZHANG XueJun
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文章历史 +

摘要

分别以三嵌段聚合物F127、P123以及P123/F127作为模板剂,酚醛树脂为有机碳源,采用溶剂挥发自组装法制备有序介孔碳材料。采用XRD,TEM和N2吸/脱附等手段对有序介孔碳进行表征,研究F127、P123及P123/F127复合模板剂对介孔碳孔道结构及有序性的影响。结果表明,使用单一模板剂时,F127较P123更易产生有序六方介孔结构;使用P123/F127复合模板剂,介孔碳有较好的二维六方有序性,介孔孔容和比表面积较单独使用F127作模板分别提高了50%与31%;当m(P123)/m(F127)=1/3时,所得介孔碳BET比表面积为498.5m2/g,介孔孔容和比表面积分别为0.173cm3/g和167m2/g,平均孔径为3.41nm。

Abstract

Ordered mesoporous carbons have been synthesized through the evaporation-induced self-assembly method, by using phenol formaldehyde resin as carbon source and three triblock co-polymer systems—F127, P123, and P123/F127—as templates. The resulting materials were characterized by X-ray diffraction, transmission electron microscopy and N2 adsorption-desorption measurements. The effects of the different templates on the pore structure and extent of order were investigated. The results show that a hexagonal ordered structure can be formed much more readily by using F127 as the template rather than P123. Compared with F127 as a single template, a mixed P123/F127 template favored the formation of carbons with well-ordered hexagonal mesostructures and the mesopore volume and specific surface area increased by as much as 50% and 31%, respectively. When the mass of P123 to F127 was 1∶3, an ordered mesoporous carbon with a BET specific surface area of 498.5m2/g, mesopore volume of 0.173cm3/g, mesopore surface area of 167m2/g and average pore size of 3.41nm was obtained. 

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张雅心;张学军*. 模板剂对介孔碳孔道结构及有序性的影响[J]. 北京化工大学学报(自然科学版), 2010, 37(5): 83-87
ZHANG YaXin;ZHANG XueJun. Effects of the template on pore size and extent of order of mesoporous carbons[J]. Journal of Beijing University of Chemical Technology, 2010, 37(5): 83-87

参考文献

[1]张香兰, 徐德平, 陈清如. 中孔炭的催化制备方法[J]. 炭素, 2001 (2): 22-25. 
Zhang X L, Xu D P, Cheng Q R. Preparation of activated carbon with mesopore by catalyzed methold[J]. Carbon, 2001 (2): 22-25. (in Chinese)
[2]Tanaka S, Norikazu N, Egashira Y, et al. Synthesis of ordered mesoporous carbons with channel structure from an organic-organic nanocomposite[J]. Chem Commun, 2005 (17): 2125-2127. 
[3]Zhang F, Meng Y, Gu D, et al. Facile aqueous route to synthesize highly ordered mesoporous polymers and carbon frameworks with la3d bicontinuous cubic structure[J]. J Am Chem Soc, 2005, 127(39): 13508-13509.
[4]Viveka A, Flodstrom K. Influence of the block length of triblock copolymers on the formation of mesoporous silica[J]. Microporous and Mesoporous Materials, 2003, 59: 167-176.
[5]Pius K, Andrew F, Viveka A, et al. Triblock copolymers as templates in mesoporous silica formation: Structural dependence on polymer chain length and synthesis temperature[J]. Langmuir, 2001, 17: 5398-5402. 
[6]Meng Y, Gu D, Zhang F, et al. Ordered mesoporous polymers and homologous carbon frameworks: Amphiphilic surfactant templating and direct transformation[J]. Angew Chem Int Ed, 2005, 117: 7215-7221.
[7]Liu C Y, Li L X, Song H H, et al. Facile synthesis of ordered mesoporous carbons from F108/Resorcinolformaldehyde composites obtained in basic media[J]. Chem Commun, 2007 (7): 757-759.
[8]Zhang F Q, Gu D, Yu T, et al. Mesoporous carbon single-crystals from organic-organic seif-assembly[J]. J Am Chem Soc, 2007, 129(25): 7746-7747.
[9]Hu Z H, Srinivasan M, Ni Y M. Preparation of mesoporous high-surfacearea activated carbon[J]. Adv Mater, 2000, 12: 62-65.
[10]Zhao D Y, Feng J L, Huo Q S, et al. Triblock copolymer syntheses of mesoporous silica with periodic 50 to 300 angstrom pores[J]. Science, 1998, 279: 548-552.
[11]胡福增. 材料表面与界面[M]. 上海 : 华东理工大学出版社 , 2008.
Hu F Z. Surface and interface of materials[M]. Shanghai: China East University of Science and Technology Press, 2008. (in Chinese)
[12]Kruk M, Jaroniec M. Gas adsorption characterization of ordered organic-inorganic nanocomposite materials[J]. Chem Mater , 2001, 13: 3169-3183.
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