Fig. 3From: Sulfur-Doped Alkylated Graphene Oxide as High-Performance Lubricant AdditiveThe TGA analysis of SA-GO which is prepared by the reactions of butylamine (GO-C4), octylamine (GO-C8), laurylamine (GO-C12), octadecylamine (GO-C18), and the sulfur-doped graphene oxide (the oxidation time of the graphene oxide is 24 h)Back to article page