For the first time, nanosized molybdenum disulfide (MoS₂) nanoparticles (NPs) were grown on the surface of poly(ethylene glycol)-polydopamine-modified reduction graphene oxide) nanosheets (rGO-PDA-PEG). The obtained rGO-PDA-PEG@MoS₂ nanocomposites exhibits excellent dispersion in polyalkylene glycol (PAG) synthetic oil and outperforms GO and MoS₂ NPs as additives in terms of friction reduction and wear resistance at elevated temperature. The superior tribological behaviour of rGO-PDA-PEG@MoS₂ might be beneficial to the synergistic effect between MoS₂ and rGO.

中文翻译：

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表面改性碳材料上纳米二硫化钼作为减摩抗磨润滑油添加剂

纳米二硫化钼（MoS ₂）纳米粒子（NPs）首次在聚（乙二醇）-聚多巴胺改性还原氧化石墨烯）纳米片（rGO-PDA-PEG）的表面上生长。所获得的rGO-PDA-PEG@MoS ₂纳米复合材料在聚亚烷基二醇（PAG）合成油中表现出优异的分散性，并且在降低摩擦和高温下的耐磨性方面优于作为添加剂的GO和MoS _{2 NPs。}rGO-PDA-PEG@MoS ₂优异的摩擦学行为可能有利于MoS ₂和rGO之间的协同效应。