Carbon materials with at least one dimension of 1–100 nm are called carbon nanomaterials. A significant body of previous research in physics, chemistry and biology has demonstrated that the properties of nano-composites are significantly different than those of the bulk materials [1]. Some unique phenomena, such as the quantum tunneling effect, and surface effects, have also been observed, and attributed to the large surface area and small size of the carbon nanomaterials. It has been reported that such nanomaterials exhibit high temperature sensitivity, high ductility, large surface area, high strain resistance, and low electrical resistivity [2]. Because of these unique features, the potential range of carbon nanomaterial applications is very extensive.