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材料工程  2008 

有序介孔炭分子筛膜的制备与表征

, PP. 41-45

Keywords: 模板,炭化,多孔炭,

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Abstract:

以三嵌段共聚物P123为结构导向剂和有机碳源,正硅酸乙酯为无机前驱体,在微量酸的催化条件下,结合非水体系蒸发诱导自组装技术与溶胶-凝胶工艺,采用浸渍-提拉法制备了介孔炭分子筛膜,研究了陈化温度对介孔炭膜结构的影响。通过透射电镜(TEM)、N2物理吸附-脱附、场发射扫描电镜(FESEM)和热重分析(TGA)对膜体的形貌结构性能进行了表征。结果表明,P123是优良的制膜材料,硫酸的预处理提高了P123的碳转化率,是成膜的关键因素之一。所制备的膜体材料由一定取向的类碳纳米管阵列组成;膜体表面致密、光滑无裂纹,具有孔径均一的对称结构。同时可以通过改变涂膜液的陈化温度来调节炭分子筛膜的孔径大小。

References

[1]  魏微,胡浩权,尤隆渤.酚醛树脂基微滤炭膜的制备及表征[J] 材料研究学报,2001,15(3):318-322.
[2]  邱英华,王同华,宋成文.聚丙烯腈基炭膜制备及结构变化的研究[J] 化工新型材料,2004,32(8):37-40.
[3]  魏微,胡浩权,秦国彤,等.热固性酚醛树脂基微滤炭膜的制备[J] 材料科学与工程学报,2006,24(2):205-208.
[4]  DILLON C,JONES K M,BEKKEDAHL T A,et al.Storage of hydrogen in single-walled carbon nanotubes[J] Nature,1997,386:377-379.
[5]  KWOK K H,CHIU W K S.Open-air carbon coatings on fused quartz by laser-induced chemical vapor deposition[J] Carbon,2003,41:673-680.
[6]  GOGOTSI Y G,YOSHIMURA M.Formation of carbon films on carbides under hydrothermal conditions[J] Nature,1994,367:628-630.
[7]  FUERTES A B,CENTENO T A.Carbon molecular sieve membranes from polyetherimide[J] Microporous Mesoporous Mater,1998,26:23-26.
[8]  STRANO M S,ZYDNEY A L,BARTH H,et al.Ultrafiltration membrane synthesis by nanoscale templating of porous carbon[J] J Membr Sci,2002,198:173-186.
[9]  PANG Jie-bin,LI Xuan,WANG Dong-hai,et al.Silica-templated continuous mesoporous carbon films by a spin-coating technique[J] Adv Mater,2004,16(11):884-886.
[10]  FUERTES A B.Synthesis of ordered nanoporous carbons of tunable mesopore size by templating SBA-15 silica materials[J] Microporous Mesoporous Mater,2004,67:273-281.
[11]  李新贵,刘睿,黄美荣.炭膜制备及其高效氧氮分离性能[J] 新型炭材料,2004,19(2):69-76.
[12]  邱英华,王同华,宋成文.聚丙烯腈炭-炭气体分离复合膜的制备[J] 膜科学与技术,2006,26(3):12-16.
[13]  王同华,魏微,刘淑琴,等.管状多孔炭膜的研究[J] 新型炭材料,2000,15(1):6-11.
[14]  ACHARYA M,FOLEY H C.Spray-coating of nanoporous carbon membranes for air separation[J] J Membr Sci,1999,161:1-5.
[15]  SHIFLETT M B,FOLEY H C.Ultrasonic deposition of high-selectivity nanoporous carbon membranes[J] Science,1999,285:1902-1905.
[16]  RYOO R,JOO S H,JUN S.Synthesis of highly ordered carbon molecular via template-mediated structural transformation[J] J Phys Chem,1999,103:7743-7756.
[17]  RYOO R,JOO S H,KRUK M,et al.Ordered mesoporous carbons[J] Adv Mater,2001,13(9):677-681.
[18]  ZHAO Dong-yuan,YANG Pei-dong,MELOSH N,et al.Continuous mesoporous silica films with highly ordered large pore structures[J] Adv Mater,1998,10:1380-1385.
[19]  ALBERIUS P A C,FRINDELL K,HAYWARD R,et al.General predictive syntheses of cubic,hexagonal,and lamellar silica and titania mesostructured thin films[J] Chem Mater,2002,14:3284-3294.
[20]  ZHAO Dong-yuan,FENG Jiang-lin,HUO Qi-sheng,et al.Triblock copolymer syntheses of mesoporous silica with periodic 50 to 300 angstrom pores[J] Science,1998,279:548-552.
[21]  DARMSTADT H,ROY C,KALIAGUINE S,et al.Surface and pore structure of CMK-5 ordered mesoporous carbons by adsorption and surface spectroscopy[J] Chem Mater,2003,15:3300-3307.

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