Performance Study and Structure Control of Carbon Aerogel

Abstract:

In this research the fabrication of carbon aerogel is reported. nanopore carbon aerogels were prepared via a sol-gel process with resorcinol and formaldehyde (RF) aerogels,which were cost-effectively manufacture form Rf wet gels by an ambient drying technique instead of conventional supercritical drying. The key of the work is to fabricate carbon aerogels with controllable nanopore structure, which means sharp pore size distribution and extremely high surface area.The influence of preparation condition of carbon aerogels was studied by scanning electron microscope and Micropore Physisorption Analyzer. The BET surface of the carbon aerogels are from 749m²/g to 1156m²/g .The size of the carbon nanoparticles are in the range of 20nm~40nm. The micro-pore volume and bore diameter can be controlled by gelation conditions such as RF mass fraction.

• Periodical: Advanced Materials Research (Volumes 706-708)
• Pages: 897-900
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.706-708.897
• Online since: June 2013
• Authors: Rui He, Xuan Liu, Zhen Fa Liu, Li Hui Zhang
• Keywords: Basic Catalyst, Carbon Aerogel, Concentration

References

[1] ZHANG Lin,LIU Hongbo, WANG Ming,et al, Carbon aerogels for electric double-layer capacitors. J. Rare Metals .,2006,25:51

DOI: 10.1016/s1001-0521(07)60044-8

[2] Pekala R.W. Oranic aerogels from the polycondensation of resorcinol with formaldehyde. J. Mater. Sci.,1989,24:3221.

DOI: 10.1007/bf01139044

[3] Probstle H., Wiener M.,and Fricke J., Carbon aerogels for electrochemical double layer capacitors.J. Porous Mater.,2003,10:213.

DOI: 10.1023/b:jopo.0000011381.74052.77

[4] Pekala R. W., Farmer J.C., Alviso C. T.,et al.,Carbon aerogels for electrochemical application. J. Non-Cryst. Solids,1998,225:74.

DOI: 10.1016/s0022-3093(98)00011-8

[5] Horikawa T., Hayashi J., and Muroyama K., Controllability of pore characterrististics of resorcinol-formaldehyde carbon aerogel. Carbon, 2004,42:1625.

DOI: 10.1016/j.carbon.2004.02.016

[6] Hwang S.W., and Hyun S.H., Capacitance control of carbon aerogel electrodes. J. Non-Cryst. Solids,2004,347:238.

DOI: 10.1016/j.jnoncrysol.2004.07.075

[7] Pekala R. W., Mayer S. T.,Kaschmitter J. L., Kong F. M., In:Attia YA, editors, Sol-gel processing and applications[M], New York: Plenum Press,(1994)

[8] Pajonk G. M.,Catal. Totay[J],1997,35:319

[9] LIN C, RITTER J A. Effect of synthesis PH on the structure of carbon aerogels[J]. Carbon,1997,35(9):1271-1278.

DOI: 10.1016/s0008-6223(97)00069-9

[10] XU XIANG, ZHOU BIN, DU AI ,et al, Investigation for Micro-shape Fabrication of Carbon aerogel and Its Mechanical Property[J], Atomic energy science technology,2008,42:26-30.