Synthesis of Multiwall Carbon Nano Tube by Using Eucalyptus Oil, its Characterization and Capacitance Study

Abstract

Multiwall Carbon nanotube (MWCNTs) are extensively studied in last few decades because of their great potential and wide applications in different fields like supercapacitors, gas sensors electronic devices, magnetic materials rechargeable batteries solar energy absorption pigment for ceramics, biosensors, fuel cell etc. Synthesis of MWCNTs was carried out by using chemical vapour deposition (CVD) method. In present work we used natural renewable green precursor i.e. eucalyptus (Eucalyptus globulus) oil for the synthesis of MWCNTs. CVD was carried out at 750⁰C temperature with the flow rate 20 ml per hour of the precursor on Ni-Co catalyst in H2 atmosphere. The characterisation of synthesized MWCNTs was done by Infrared spectroscopy (IR) X-ray diffraction (XRD), Scanning electron microscopy (SEM), High resolution transmission electron microscopy (HRTEM) and Raman spectroscopic analysis. Surface area and Pore volume measured by Brunauer- Emmet- Teller (BET) technique. Capacitance study was done by using potentiostat (CHI110A). We confirmed the MWCNTs with diameter range 30 nm to 70 nm, surface area 163.89 cc, pore volume 0.248 cc and specific capacitance 214 F/g.