Electrochemical alternative to obtain reduced graphene oxide by pulse potential: Effect of synthesis parameters and study of corrosion properties
By L
Published in Diamond and Related Materials
2018
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.