Carbon nanofibers functionalized with active screen plasmadeposited metal nanoparticles for electrical energy storage devices

Santiago Corujeira Gallo, Xiaoying Li, Klaus Futterer, Constantinos Charitidis, Hanshan Dong

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)
167 Downloads (Pure)

Abstract

Supercapacitors are energy storage devices with higher energy densities than conventional capacitors, but lower than batteries or fuel cells. There is a strong interest in increasing the volumetric and gravimetric capacitance of these devices to meet the growing demands of the electrical and electronic sectors. The capacitance depends largely on the electrode material, and carbon nanofibers (CNFs) have attracted much attention because of their relatively low cost, large surface area, good electrical conductivity as well as chemical and thermal stability. The deposition of metal nanoparticles on CNFs is a promising way to increase their surface properties and, ultimately, the capacitance of the devices. In this study, nickel and silver nanoparticles were deposited on CNFs using the active screen plasma technology. The CNFs were characterized and their electrochemical performance was assessed in a three electrodecell. The results show significant improvements over the untreated CNFs, particularly after
functionalization with silver nanoparticles.
Original languageEnglish
Pages (from-to)23195-23201
Number of pages7
JournalACS Applied Materials & Interfaces
Volume9
Issue number27
Early online date16 Jun 2017
DOIs
Publication statusPublished - 28 Jun 2017

Keywords

  • carbon nanofibers
  • supercapacitors
  • plasma
  • surface functionalization
  • electrochemistry

ASJC Scopus subject areas

  • Materials Science(all)

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