Preparation and High Temperature Tribological Properties of Core-Shell MoS2@SiO2 Nanocomposites
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摘要:
二硫化钼(MoS2)因其独特的层状结构而具有优异的润滑性能，成为近年来摩擦学领域的研究热点之一。然而MoS2高温下易发生氧化导致润滑失效，最高使用温度仅为400℃，限制了MoS2的发展和应用。采用水热法制备平均粒径为200 nm的MoS2纳米花，再用改良Stöber法制备了核壳MoS2@SiO2纳米复合材料，包覆结构完整，包覆层均匀，平均厚度30 nm。采用浆料法和喷涂技术制备了MoS2@ SiO2粘结固体润滑涂层，利用MoS2涂层作为对比，并研究了涂层的在680℃下的摩擦磨损性能。结果表明，在680℃下，MoS2@SiO2涂层的摩擦学性能优于MoS2涂层。MoS2@SiO2涂层磨损率为2.58×10-3 mm3·N-1·m-1，比MoS2涂层低25.86%。MoS2@SiO2涂层的磨痕里存在MoS2，可以证明SiO2外壳的保护延缓了MoS2的氧化。 MoS2@SiO2复合材料的制备和高温摩擦性能Preparation and high temperature tribological properties of MoS2@SiO2 composites Abstract: Molybdenum disulfide (MoS2) is easy to be oxidized when used at high temperature, which leads to significant deterioration of its tribological properties, showing a high friction coefficient. In order to improve the tribological properties of MoS2 lubricant under high temperature environment, core-shell MoS2@SiO2 Nanocomposites was formed by hydrothermal method and improved Stöber method. The morphology, size and composition of the nano materials were characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM) and X-ray diffraction (XRD). The micro results show that the core-shell structure composite was successfully prepared, with an average particle size of 250 nm. The high temperature friction test of prepared MoS2@SiO2 solid lubrication coating was carried out, and the MoS2 coating was used as a comparison. The morphology and structure of the coating were characterized by SEM and XRD, and the wear rate of the coating was characterized by a 3D profiler. The results show that the friction coefficient of the MoS2@SiO2 coating at 680℃ was 0.2 and relatively stable, while MoS2 coating rapidly failed. The MoS2@SiO2 coating had better wear resistance, with a wear rate 25.86% lower than that of MoS2 coating. After the friction tests, MoS2 still exists in the wear scar area of the MoS2@SiO2 coating, which was covered by the lubricating film; However, the substrate in the wear zone of MoS2 coating was completely exposed. The results show that the coating of SiO2 shell delayed the rapid oxidation of MoS2 at high temperature, and the synergistic lubricating extend the service life of the coating.-
Key words:
- core-shell structure /
- Molybdenum disulfide /
- solid lubricating /
- high temperature /
- composites
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图 1 (a) MoS2@SiO2的合成示意图；(b) 摩擦磨损试验示意图
Figure 1. (a) Schematic of the preparation of MoS2@SiO2；(b) Schematic of friction and wear tests
图 2 (a) MoS2和(b) MoS2@SiO2的SEM图像；(c) MoS2 和(d) MoS2@SiO2的TEM图像
Figure 2. SEM images of (a) MoS2 and (b) MoS2@SiO2;TEM images of (c) MoS2 and (d) MoS2@SiO2
图 3 (a) MoS2@SiO2的EDS面扫描图像；相应的EDS元素分布图：(b)Si, (c) O, (d) Mo and (e)S；(f) MoS2@SiO2的EDS光谱数据
Figure 3. (a)The EDS map scanning profile across the MoS2@SiO2;The corresponding EDS elemental mapping of (b)Si,(c) O ,(d) Mo and (e)S; (f) EDS spectrum data of MoS2@SiO2
图 4 (a) MoS2和MoS2@SiO2的XRD衍射图谱；(b) MoS2和MoS2@SiO2的拉曼图谱
Figure 4. (a) XRD patterns of MoS2 and MoS2@SiO2; (b) Raman spectrum of MoS2 and MoS2@SiO2
图 6 MoS2和MoS2@SiO2在纯水中的粒径分布曲线
Figure 6. Particle size distribution curves of MoS2 and MoS2@SiO2 in water
图 7 MoS2涂层(a)和MoS2@SiO2涂层(b)的SEM图像和元素分布
Figure 7. SEM images and elemental distributions of MoS2 coating (a) and MoS2@SiO2 coating (b)
图 8 (a) MoS2涂层和MoS2@SiO2涂层的XRD衍射图谱；(b) MoS2涂层和MoS2@SiO2涂层在680℃高温摩擦实验之后的XRD衍射图
Figure 8. (a) XRD patterns of MoS2 coating and MoS2@SiO2 coating；(b) XRD patterns of MoS2 coating and MoS2@SiO2 coating after high temperature friction test at 680℃
图 9 MoS2涂层和MoS2@SiO2涂层在680℃和室温下的摩擦系数曲线
Figure 9. Friction coefficient curves of MoS2 coating and MoS2@SiO2 coating at 680℃ and room temperature
图 10 (a,b) MoS2涂层和MoS2@SiO2涂层高温摩擦实验之后的对偶球形貌；(c,d) MoS2涂层和MoS2@SiO2涂层高温摩擦实验之后的磨痕
Figure 10. (a, b) Friction pairs of MoS2 coating and MoS2@SiO2 coating after friction test; (c, d) Wear scar of MoS2 coating and MoS2@SiO2 coating after friction test
图 11 (a) MoS2涂层和(b) MoS2@SiO2涂层磨损表面的三维形貌和磨痕深度曲线
Figure 11. 3 D morphology and wear scar depth curve of (a) MoS2 coating and (b) MoS2@SiO2 coating
图 12 MoS2涂层(a)和MoS2@SiO2涂层(b)的磨损表面形貌和元素分布
Figure 12. Surface morphology and element distribution at wear scar of MoS2 coating (a) and MoS2@SiO2 coating (b)
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[1] XIE Hongmei, JIANG Bin, HE Junjie, et al. Lubrication performance of MoS2 and SiO2 nanoparticles as lubricant additives in magnesium alloy-steel contacts[J]. Tribology International,2016,93:63-70. doi: 10.1016/j.triboint.2015.08.009 [2] LIN Gaoxin, WANG Jiacheng. Progress and perspective on molybdenum disulfide with single-atom doping toward hydrogen evolution[J]. Chemical Journal of Chinese Universities,2022,43(9):65-78. [3] 张爽, 王子鸣, 卢雅宁, 等. 熔盐电解法制备NbS2@MoS2复合材料及其电催化析氢性能[J]. 复 合材料学报, 2022, 39(8):3882-3890.ZHANG Shuang, WANG Ziming, LU Yaning, et al. Molten salt electrolysis synthesis of NbS2@MoS2 and its performance for water splitting into hydrogen[J]. Acta Materiae Compositae Sinica,2022,39(8):3882-3890(in Chinese). [4] 靳欣, 朱颖, 胡文浩, 等. 原位碳包覆二硫化钼用于锂离子电池负极材料[J]. 有色金属工程, 2021, 11(6):12-16. doi: 10.3969/j.issn.2095-1744.2021.06.003JIN Xin, ZHU Ying, HU Wenhao, et al. In-situ carbon-coated molybdenum disulfide as anode material for lithium-ion batteries[J]. Nonferrous Metals Engineering,2021,11(6):12-16(in Chinese). doi: 10.3969/j.issn.2095-1744.2021.06.003 [5] CG A, JX A, LZ A, et al. Crystal structure and tribological properties of molybdenum disulfide films prepared by magnetron sputtering technology[J]. Current Applied Physics,2019,19(12):1318-1324. doi: 10.1016/j.cap.2019.08.017 [6] WAN Qingming, JIN Yi, SUN Pengcheng, et al. Rheological and tribological behaviour of lubricating oils containing platelet MoS2 nanoparticles[J]. Journal of Nanoparticle Research,2014,16(5):2386. doi: 10.1007/s11051-014-2386-2 [7] HU E Z, XU Y, HU K H, et al. Tribological properties of 3 types of MoS2 additives in different base greases[J]. Lubrication Science,2017,29(8):541-555. doi: 10.1002/ls.1387 [8] 谢杭明, 吴汉卿, 何志伟, 等. MoS2/MXene纳米复合物的研究进展[J]. 复合材料学报, 2022, 39(3):1005-1016.XIE Hangmin, WU Hanqing, HE Zhiwei, et al. Research progress in MoS2/MXene nanocomposites[J]. Acta Materiae Compositae Sinica,2022,39(3):1005-1016(in Chinese). [9] RAJESH S, VELMURUGAN C, EBENEZER J, et al. Studies on the tribological behaviour of exsitu-synthesized AlMg1 SiCu/titanium carbide/molybdenum disulfide hybrid composites[J]. Materials Research Express,2019,6:12. [10] NIAN Jingyan, CHEN Liwei, GUO Zhiguang, et al. Computational investigation of the lubrication behaviors of dioxides and disulfides of molybdenum and tungsten in vacuum[J]. Friction,2017,5(1):23-31. doi: 10.1007/s40544-016-0128-4 [11] RAKESH K G, SURESH K R N. Evaluation of friction and wear characteristics of electrostatic solid lubricant at different sliding conditions[J]. Surface & Coatings Technology,2017,332:341-350. [12] MARTIN J M, DONNET C, MOGNE T L, et al. Superlubricity of molybdenum disulphide[J]. Physical Review B,1993,48(14):10583-10586. doi: 10.1103/PhysRevB.48.10583 [13] KHARA H. S, BURRIS D. L, The Effects of Environmental Water and Oxygen on the Temperature-Dependent Friction of Sputtered Molybdenum Disulfide[J]. Tribology Letters,2013,52(3):485-493. doi: 10.1007/s11249-013-0233-8 [14] MURATORE C, BULTMAN J E, AOUADI S M, et al. In situ Raman spectroscopy for examination of high temperature tribological processes[J]. Wear,2011,270(3):140-145. [15] SPYCHALSKI W L, PISAREK M, SZOSEKIEWICZ R. Microscale Insight Into Oxidation of Single MoS2 Crystals in Air[J]. The Journal of Physical Chemistry C,2017,121(46):26027-26033. doi: 10.1021/acs.jpcc.7b05405 [16] MOHAMMAD R. V, ASHLIE M, DAVID A S, et al. Solid Lubrication with MoS2: A Review[J]. Lubricants,2019,7(7):57. doi: 10.3390/lubricants7070057 [17] MENG Fanming, YANG Chengzhang, HAN Huali, et al. Study on tribological performances of MoS2 coating at high temperature[J]. Proceedings of the Institution of Mechanical Engineers, Part J. Journal of engineering tribology,2018,232(8):964-973. doi: 10.1177/1350650117735272 [18] ZHAI Jiao, LI Yujin, ZHAO Lican, et al. Exploring the effects of boron nitride coating on the thermal stability and photoluminescence properties of molybdenum disulfide nanospheres[J]. Ceramics International,2019,45(17):23694-23700. doi: 10.1016/j.ceramint.2019.08.084 [19] TIAN Yumeng, ZHAO Jingzhe, FU Wuyou. A facile route to synthesis of MoS2 nanorods[J]. Materials Letters,2005,59(27):3452-3455. doi: 10.1016/j.matlet.2005.06.012 [20] ROSENTSEVIG R, GORODNEV A, FEUERSTEIN N, et al. Fullerene-like MoS2 Nanoparticles and Their Tribological Behavior[J]. Tribology Letters,2009,36:175-182. doi: 10.1007/s11249-009-9472-0 [21] LEE Yihsien, ZHNG Xinquan, ZHANG Wenijng, et al. Synthesis of large-area MoS2 atomic layers with chemical vapor deposition.[J]. Advanced materials (Deerfield Beach, Fla. ),2012,24(17):2320-2325. doi: 10.1002/adma.201104798 [22] VOLLATH D, SZABO D. V, Synthesis of Nanocrystalline MoS2 and WS2 in a Microwave Plasma[J]. Materials Letters,1998,35(3):236-244. [23] LU Junpeng, LU Jiahui, LIU Hongwei, et al. Improved photoelectrical properties of MoS2 films after laser micromachining.[J]. ACS nano,2014,8(6):6334-6343. doi: 10.1021/nn501821z [24] LI Ning, CHAI Yongming, LI Yanpeng, et al. Ionic liquid assisted hydrothermal synthesis of hollow vesicle-like MoS2 microspheres[J]. Materials Letters,2012,66(1):236-238. doi: 10.1016/j.matlet.2011.08.092 [25] PARK S. K, YU S. H, WOO S, et al. A facile and green strategy for the synthesis of MoS2 nanospheres with excellent Li-ion storage properties[J]. CRYSTENGCOMM,2012,14(24):8323-8325. doi: 10.1039/c2ce26447a [26] ZHANG Xianghua, HUANG Xiaohai, XUE Maoquan, et al. Hydrothermal synthesis and characterization of 3 D flower-like MoS2 microspheres[J]. Materials Letters,2015,148:67-70. doi: 10.1016/j.matlet.2015.02.027 [27] ZHOU Xiaoping, XU Bing, LIN Zhengfeng, et al. Hydrothermal synthesis of flower-like MoS2 nanospheres for electrochemical supercapacitors.[J]. Journal of nanoscience and nanotechnology,2014,14(9):7250-7254. doi: 10.1166/jnn.2014.8929 [28] CHAO Yanhong, ZHU Wenshua, WU Xiangyang, et al. Application of graphene-like layered molybdenum disulfide and its excellent adsorption behavior for doxycycline antibiotic[J]. Chemical Engineering Journal,2014,243:60-67. doi: 10.1016/j.cej.2013.12.048 [29] WANG Xiwen, ZHANG Zhian, CHEN Yaqiong et al. Morphology-controlled synthesis of MoS2 nanostructures with different lithium storage properties[J]. Journal of Alloys and Compounds,2014,600:84-90. doi: 10.1016/j.jallcom.2014.02.127 [30] HU Kunhong, HU Xianguo, XU Yufu, et al. The Effect of Morphology on the Tribological Properties of MoS2 in Liquid Paraffin[J]. Tribology Letters,2010,40(1):155-165. doi: 10.1007/s11249-010-9651-z [31] 傅重源, 邢淞, 沈涛, 等. 水热法合成纳米花状二硫化钼及其微观结构表征[J]. 物理学报, 2015, 64(1):212-217. doi: 10.7498/aps.64.016102FU Chongyuan, XING Song, SHEN Tao, et al. Synthesis and characterization of flower-like MoS2 microspheres by hydrothermal method[J]. Acta Physica Sinica,2015,64(1):212-217(in Chinese). doi: 10.7498/aps.64.016102 [32] ZHANG Zhenwei, WANG Peng, WANG Fei, et al. Controlling dispersion and morphology of MoS2 nanospheres by hydrothermal method using SiO2 as template[J]. Chinese Journal of Chemical Engineering,2018,26(5):1229-1234. doi: 10.1016/j.cjche.2017.12.016 [33] YIN Yuhang, XU Pengfei, FANG Jiabin, et al. Effect of fly ash cenosphere@SiO2 core-shell microspheres on physical properties and microstructures of vitrified bond diamond tools[J]. Diamond and Related Materials,2020,103:107703. doi: 10.1016/j.diamond.2020.107703 [34] LI Hong, ZHANG Qing, YAP C C R, et al. From Bulk to Monolayer MoS2: Evolution of Raman Scattering[J]. Advanced Functional Materials,2012,22(7):1385-1390. doi: 10.1002/adfm.201102111 [35] MESTL G, RUIZ P, DELMON B, et al. Oxygen-Exchange Properties of MoO3: An in situ Raman Spectroscopy Study[J]. Journal of Physical Chemistry,1994,98(44):11269-11275. doi: 10.1021/j100095a007 [36] SANTOS E. B, SILVA J. M D, MAZALI I. O. Raman spectroscopy as a tool for the elucidation of nanoparticles with core-shell structure of TiO2 and MoO3[J]. Vibrational Spectroscopy,2010,54(2):89-92. doi: 10.1016/j.vibspec.2010.03.010 -
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