Fig. 9From: Sulfur-Doped Alkylated Graphene Oxide as High-Performance Lubricant Additivea, b The maximum nonseizure load (PB) value while SA-GO (prepared by sulfur-doped GO and octylamine, the oxidation time of the GO is 24 h) is applied as lubrication additive with certain concentration in PAO4 (a) and 928 (b) oil Back to article page