用于刚剥离的二硫化钼纳米片的超声辅助碱性溶液回流法

Wu Pei-Rong, Liu Zan, Cheng Zhi-Lin

School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China.

ACS Omega. 2019 Jun 5;4(6):9823-9827. doi: 10.1021/acsomega.9b01129. eCollection 2019 Jun 30.

A facile approach was developed to produce MoS nanosheets by ultrasound-assisted reflux exfoliation, which was highly efficient for large-scale production and sustainable for environment. The interlayer force of bulk MoS was first exhausted in employing LiOH/NaOH solution by reflux and thereafter quickly exfoliated by ultrasound. The lateral size of the as-prepared MoS nanosheets with about 2-9 layers became smaller. Definitely, the average friction coefficient and wear scar diameter of 0.08 wt % MoS-based oil decreased by about 21.87 and 38.09% relative to the base oil, which displayed better antifriction and antiwear performances.

通过超声辅助回流剥离法开发了一种简便的方法来制备MoS纳米片，该方法对于大规模生产非常高效且对环境可持续。块状MoS的层间力首先通过在LiOH/NaOH溶液中回流而耗尽，然后通过超声快速剥离。所制备的约2-9层MoS纳米片的横向尺寸变小。显然，相对于基础油，0.08 wt% MoS基油的平均摩擦系数和磨斑直径分别降低了约21.87%和38.09%，显示出更好的减摩和抗磨性能。