Presentation Information
[7a-P05-14]Dielectric Characterization of Carbon Nanotubes with Residual Catalysts Using a Low-cost Vector Network Analyzer
〇(M1)Sei Nonomura1, Masakatsu Hujii1, Yamato Terui1, I P. Abdi Karya2, Kouhei Nakagawa2, Ryoichi Ishimatsu1, Toyohiko Nishiumi1, Takayuki Asano1,2, Seitaro Mitsudo1,2 (1.Fac. of Eng., Univ. of Fukui, 2.FIR Center, Univ. of Fukui)
Keywords:
Dielectric Constants,Pulification of CNTs,A Low-cost Vector Network Analyzer
In this presentation, we evaluated the dielectric constants of carbon nanotubes (CNTs) synthesized by microwave heating from a mixture of microwave-active catalysts and waste plastics. Using a low-cost vector network analyzer and a homemade cavity resonator, we clarified the effect of catalyst residues in the CNTs product. As the number of production cycles increased, the dielectric loss also increased, suggesting improved microwave absorption and non-uniform distribution. We will also report on the evaluation of the properties after purification by chemical treatment.