采用响应面法微波合成二硫化钼纳米颗粒用于摩擦学应用

Microwave Synthesis of Molybdenum Disulfide Nanoparticles Using Response Surface Methodology for Tribological Application.

作者信息

Nagarajan Thachnatharen, Khalid Mohammad, Sridewi Nanthini, Jagadish Priyanka, Walvekar Rashmi

机构信息

Faculty of Defense Science and Technology, National Defense University of Malaysia, Kuala Lumpur 57000, Malaysia.

Graphene and Advanced 2D Materials Research Group (GAMRG), School of Engineering and Technology, Sunway University, Subang Jaya 47500, Malaysia.

出版信息

Nanomaterials (Basel). 2022 Sep 27;12(19):3369. doi: 10.3390/nano12193369.

DOI:10.3390/nano12193369

PMID:36234497

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9565904/

Abstract

We used response surface methodology (RSM) based on the central composite design (CCD) model to optimize the synthesis time and temperature of the molybdenum disulfide (MoS) nanoparticles using the flexiWAVE microwave. Furthermore, the synthesized MoS nanoparticles were used in SAE 20W50 diesel engine oil to study the tribological properties according to ASTM standards using a four-ball tribotester. The optimization result shows that the synthesis temperature and time for the MoS nanoparticles in the microwave were ~200 °C and ~15 min, respectively, with a coefficient of friction (COF) and average wear scar diameter (WSD) of 0.0849 and 320 μm. Furthermore, the difference between the experimental and predicted values was minimal (1.88% (COF) and 0.625% (WSD)), which was similar to the optimization model.

摘要

我们使用基于中心复合设计（CCD）模型的响应面方法（RSM），通过flexiWAVE微波优化二硫化钼（MoS）纳米颗粒的合成时间和温度。此外，将合成的MoS纳米颗粒用于SAE 20W50柴油发动机油中，根据ASTM标准使用四球摩擦磨损试验机研究其摩擦学性能。优化结果表明，微波中MoS纳米颗粒的合成温度和时间分别约为200°C和约15分钟，摩擦系数（COF）和平均磨斑直径（WSD）分别为0.0849和320μm。此外，实验值与预测值之间的差异最小（COF为1.88%，WSD为0.625%），这与优化模型相似。