• 文献标题:   Investigation of super-capacitive nature of reduced graphene oxide nano mesh grown over 18 k gold foil using wings of Parides iphidamas as biological template
  • 文献类型:   Article
  • 作  者:   JEYASUBRAMANIAN K, PRABHIN VS, HIKKU GS, PREETHI AVM
  • 作者关键词:   reduced graphene oxide, biotemplate, nano mesh, cyclic voltammetry, super capacitor
  • 出版物名称:   MATERIALS RESEARCH BULLETIN
  • ISSN:   0025-5408 EI 1873-4227
  • 通讯作者地址:   Mepco Schlenk Engn Coll
  • 被引频次:   6
  • DOI:   10.1016/j.materresbull.2017.09.051
  • 出版年:   2018

▎ 摘  要

This paper deals with the fabrication of novel, reduced graphene oxide nano mesh (rGONM) patterns with longitudinal nano-ridges and transverse nano-ribs using nano tubular structures found on the scales of Parides iphidamas, a butterfly species as biological template. Raman spectra, EDAX and FTIR results confirm the obtained mesh-like morphology that comprises only reduced graphene oxide (rG0). Further, super-capacitor performances of rGO and rGONM-coated gold substrates have been evaluated using cyclic-voltammetry (CV), galvanostatic charge-discharge cycle (GCD) and electrochemical impedance spectroscopic (EIS) analysis. A characteristic rectangular curve obtained from the CV of rGO and rGONM-coated gold electrodes display specific capacitances of 291 F/g and 418 F/g respectively at a scan rate of 5 mV/s. The results obtained from EIS support the superior nature of rGONM-coated electrode against rGO system, suggesting the use of rGONM-Au as a potential candidate for electrochemical super capacitor applications.