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ＭｏＳ２是一种性能优良的固体润滑剂，为了考察它的润滑失效机理，在给定的试验条件下，对其在不同温度大气环境中的氧化状态与活性作了顺磁共振和Ｘ射线光电子能谱分析研究．在Ｍｏ混合氧化物的Ｍｏ３ｄ包络峰中解叠出２组峰，分别归属Ｍｏ６＋，Ｍｏ５＋和Ｍｏ４＋这３种化学状态，Ｍｏ５＋在４ｄ轨道上有１个未成对的电子，这是Ｍｏ氧化物中的一种过渡化合状态，具有４ｄ电子构型和顺磁性，可以在从室温到５００℃范围内稳定存在，而且活性较好，在光电离作用下形成Ｍｏ的终态化合物．因此，ＭｏＳ２在摩擦过程中由于周围环境和摩擦热等多种因素的作用，在摩擦表面生成Ｍｏ６＋而失效，这是一种单电子转多过程
MoS2 is a kind of solid lubricants with good performance. In order to investigate its lubricating failure mechanism, under the given experimental conditions, the oxidation state and activity of MoS2 were paramagnetic resonance and X-ray photoelectron energy Spectrum Analysis Research. There are two groups of peaks that are unfolded in the Mo3d envelope peak of Mo mixed oxide and belong to three chemical states of Mo6 +, Mo5 + and Mo4 + respectively. Mo5 + has one unpaired electron in the 4d orbit, which is Mo oxide Of the transition state, with 4d electronic configuration and paramagnetic, stable at room temperature to 500 ℃ range, and better activity, the formation of Mo in the final photoelectrochemical ionization compounds. Therefore, MoS2 in the friction process due to the surrounding environment and frictional heat and other factors, the friction surface generated Mo6 + failure, which is a single electron transfer process