|About this Abstract
||Materials Science & Technology 2011
||MS&T'11 Poster Session
||183 The Fabrication and Characterization of Carbon Nanotube Sponge with Controllable Pore Size
||Shih-Chin Chang, Chia-Chi Hsieh
|On-Site Speaker (Planned)
A new and easy method of producing carbon nanotube sponge with controllable pore size was demonstrated in this work. The solution of dispersed carbon nanotubes and 0~1 wt% was frozen under different condition to form different ice grains. The solvent in the frozen solid was removed by sublimation without melting under low enough pressure. The carbon nanotube sponges thus made has large (>95%) volume fraction of porosity and ultra low density (1~8mg/ml). The sponge can be repeat deformed elastically to more than 50% with an accordingly change of electrical resistance of more than two order of magnitude. The deformation-resistivity relation is found to be linear in log scale. The carbon nanotube sponges thus made have many potential applications such as strain-sensor, e-skin, and so on. With its high surface area (245m2/g) and mesopore distribution it is also a good candidate for electrochemical electrode.