Preparation and microstructure control of carbon aerogels produced using m-cresol mediated sol-gel polymerization of phenol and furfural

被引：0
作者：
State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China [1 ]
不详 [2 ]
不详 [3 ]
机构：
[1] State Key Laboratory of Chemical Engineering, East China University of Science and Technology
[2] Shanghai Institute of Technology
[3] Aerospace Institute of Materials and Processing Technology
来源：
Xinxing Tan Cailiao/ New Carbon Materials | 2008年 / 23卷 / 02期
关键词：
Carbon aerogels; Density; Porosity; Sol-gel process; Supercritical drying;
D O I：
10.1016/s1872-5805(08)60020-7
中图分类号：
学科分类号：
摘要：
Carbon aerogels rich in mesopores were prepared by the sol-gel polycondensation of phenol, m-cresol, and furfural by an acid catalyst in a 1-propanol solution, followed by supercritical 1-propanol drying and pyrolysis. The effect of the ratios of m-cresol to phenol (m-C/P) on the properties of aerogels was investigated. The aerogels were characterized by infrared spectroscopy, N2 adsorption, scanning and transmission electron microscopy. It was found that the microstructure of carbon aerogels could be adjusted by the m-C/P ratio. The average mesopore size of carbon aerogels decreased from 47 to 13 nm with increasing m-C/P ratio. The surface area calculated using the Brunauer-Emmett-Teller method, external surface area, and mesopore volume of carbon aerogels, all exhibited maxima at the m-C/P ratio of 0.33.
引用
收藏
页码：165 / 170
页数：5
相关论文
共 19 条
  • [1] Pekala R.W., Organic aerogels from the polycondensation of resorcinol with formaldehyde, Journal of Materials Science, 24, pp. 3221-3227, (1989)
  • [2] Pekala R.W., Alviso C.T., Kong F.M., Et al., Aerogels derived from multifunctional organic monomers, Journal of Non-Crystalline Solids, 145, 1, pp. 90-98, (1992)
  • [3] Liu X.-M., Zhang R., Zhan L., Et al., Impedance of carbon aerogel/activated carbon composites as electrodes of electrochemical capacitors in aprotic electrolyte, New Carbon Materials, 22, 2, pp. 153-158, (2007)
  • [4] Moreno-Castilla C., Maldonado-Hodar F.J., Carbon aerogels for catalysis applications
  • [5] An overview, Carbon, 43, 3, pp. 455-465, (2005)
  • [6] Saliger R., Fischer U., Herta C., Et al., High surface area carbon aerogels for supercapacitors, Journal of Non-Crystalline Solids, 2259, 2, pp. 335-342, (1998)
  • [7] Ying T.-Y., Yang K.-L., Yiacoumi S., Et al., Electro-sorption of ions from aqueous solutions by nanostructured carbon aerogel, Journal of Colloid and Interface Science, 250, 1, pp. 18-27, (2002)
  • [8] Pekala R.W., Synthetic control of molecular structure in organic aerogels, Mater Res Soc Proc, 171, 2, pp. 285-291, (1990)
  • [9] Horikawa T., Hayashi J., Muroyama K., Controllability of pore characteristics of resorcinol-formaldehyde carbon aerogel, Carbon, 42, pp. 1625-1633, (2004)
  • [10] Tamon H., Ishizuka H., SAXS study on gelation process in preparation of resorcinol formaldehyde aerogel, Journal of Colloid and Interface Science, 206, 2, pp. 577-582, (1998)
12