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Here, we propose a simple, effective method to prepare expanded graphite in which the intercalation and expansion of graphite are realized by only one step under ambient conditions, not involving any heating or any sophisticated devices. We demonstrate that the expanded graphite prepared by such an one-step room-temperature method exhibits an expansion volume of up to 225 times. Most importantly,...
Thermal manipulation of materials is of great interest due to various requirements for heat dissipation. We report an experimental study of thermal manipulation of a highly oriented carbon nanotube (CNT) fiber by mechanical stretching based on the transient electro-thermal (TET) method. The thermal property of CNT fibers is measured under different elongation ratios and temperatures. Thermal conductivity...
The influences of nitric acid oxidation on the surface properties and the adsorption capacity of single-walled carbon nanotubes (SWCNTs) were investigated in this work. To eliminate the size effects on the adsorption capacity, o-xylene and p-xylene were used as model adsorbates. It was found that purification of the SWCNTs by nitric acid significantly increased the internal surface area as well as...
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