Electrochemical alternative to obtain reduced graphene oxide by pulse potential: Effect of synthesis parameters and study of corrosion properties

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Abstract

Two methods to form reduced graphene oxide (rGO) coatings are proposed as simple, rapid and reproducible alternatives to protect 304 L SS substrates. The first route combines traditional Hummers' modified method and pulse electrodeposition technique (−1.6 and −2 VSCE) whereas with the second one, reduction is obtained by applying the potentiostatic method (−1 to −4 VSCE) in a solution containing graphite + H2SO4. The electrochemical results show that ERGO coatings can properly protect metallic substrates only when they are obtained with an applied potential of −4 VSCE. To carry out this process, strong oxidants, extensive water amounts and long reaction times are avoided.

Original languageEnglish
Pages (from-to)167-188
Number of pages22
JournalDiamond and Related Materials
Volume88
DOIs
StatePublished - Sep 2018

Keywords

  • Corrosion resistance
  • Electrochemically reduced graphene oxide
  • Graphene oxide
  • Graphite

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