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

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

doi:10.3390/nano12193369

Cited by 6 publications

(5 citation statements)

References 33 publications

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“…This effect occurs when the 2D nanoparticles accumulate and deposit in the tiny cracks and ridges of mating surfaces, smoothing them out and lowering the average WSD. This mechanism and result are in agreement with former studies [8,41,51,52].…”

Section: Tribological Analysis Of Ti 3 C 2 T X Mxene Nanolubricantsupporting

confidence: 93%

“…surfaces, smoothing them out and lowering the average WSD. This mechanism and result are in agreement with former studies [8,41,51,52].…”

Section: Tribological Analysis Of Ti 3 C 2 T X Mxene Nanolubricantsupporting

confidence: 93%

“…In order to obtain the MXene powder, a freeze dryer was used to carry out the freeze-drying process. The synthesis methodology has been adopted from our previous work [34,41].…”

Section: Synthesis Of Ti 3 C 2 T X Mxenementioning

confidence: 99%

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Tribological, Oxidation and Thermal Analysis of Advanced Microwave–Hydrothermal Synthesised Ti3C2Tx MXene as Additives in Outboard Engine Oil

Zaharin,

Ghazali,

Khalid

et al. 2023

Lubricants

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In today’s fast, globalised world, lubrication has become essential in enhancing engine efficiency, including in the marine sector. While the number of fishing vessels increased, so did the environmental pollution issues, due to inefficient engines. An outboard engine oil’s tribological, oxidation and thermal conductivity behaviour play a crucial role in improving the quality of an outboard engine’s life. In this research, Ti3C2Tx MXene nanoparticles with different interlayer spacing were synthesised via an advanced microwave–hydrothermal approach. Later, the nanoparticles were dispersed in TC-W outboard engine oil to formulate the Ti3C2Tx MXene nanolubricant with different concentrations. The results show that nanolubricant with a 0.01 wt.% Ti3C2Tx MXene concentration with higher interlayer spacing reduced the coefficient of friction, and the average wear scar diameter by 14.5% and 6.3%, respectively, compared to the base oil. Furthermore, the nanolubricant with a 0.01 wt.% concentration of the Ti3C2Tx MXene nanoparticle showed an improvement of 54.8% in oxidation induction time compared to the base oil. In addition, MXene nanolubricant established a more than 50% improvement in thermal conductivity compared to the base oil.

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Section: Tribological Analysis Of Ti 3 C 2 T X Mxene Nanolubricantsupporting

confidence: 93%

“…surfaces, smoothing them out and lowering the average WSD. This mechanism and result are in agreement with former studies [8,41,51,52].…”

Section: Tribological Analysis Of Ti 3 C 2 T X Mxene Nanolubricantsupporting

confidence: 93%

See 1 more Smart Citation

Tribological, Oxidation and Thermal Analysis of Advanced Microwave–Hydrothermal Synthesised Ti3C2Tx MXene as Additives in Outboard Engine Oil

Zaharin,

Ghazali,

Khalid

et al. 2023

Lubricants

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“…Tribological performance showed a decline beyond 0.1 wt and below 0.005 wt. Hence, weight percentages of 0.005 wt%, 0.01 wt%, 0.05 wt%, and 0.1 wt% were selected for further investigation to strike a balance between tribological properties and performance 63 . This range offers valuable insights for optimizing the nanocomposite formulation and advancing its application in lubrication systems.…”

Section: Methodsmentioning

confidence: 99%

Synergistic performance evaluation of MoS2–hBN hybrid nanoparticles as a tribological additive in diesel-based engine oil

Nagarajan

Sridewi

Wong

et al. 2023

Sci Rep

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In this study, MoS2–hBN hybrid nanoparticles were synthesized using an advanced microwave platform for new nanolubricant formulations. The synthesized nanoparticles were characterized by field-emission scanning electron microscopy, energy-dispersive X-ray spectroscopy, X-ray diffraction, and Raman spectroscopy. The hybrid nanoparticles were then introduced into a 20W40 diesel-based engine oil to produce a nanolubricant. The physical and chemical properties of the nanolubricant were investigated, including the viscosity index, stability, volatility, tribological properties, oxidation properties, and thermal conductivity. The results showed that the inclusion of 0.05 wt% MoS2–hBN hybrid nanoparticles in the oil significantly reduced the coefficient of friction and wear scar diameter by 68.48% and 35.54%, respectively. Moreover, it exhibited substantial oxidation and thermal conductivity improvement of 38.76% and 28.30%, respectively, at 100 °C. These findings demonstrate the potential of MoS2-hBN hybrid nanoparticles as an effective additive to enhance the properties of nanolubricant significantly. Furthermore, this study offers valuable insights into the underlying mechanisms responsible for the observed enhancements. The promising outcomes of this investigation contribute to the advancement of nanotechnology-based lubricants, showcasing their potential for improving engine efficiency and prolonging the lifespan of machinery.

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“…Studies performed by a large number of scholars have shown that adding lubricant [ 5 , 6 , 7 , 8 , 9 , 10 , 11 ] to the object surface or using micro/nano texture formation to modify the friction pair surface can effectively improve the tribological properties of the material surface [ 12 , 13 , 14 , 15 , 16 , 17 ]. This surface modification method is called surface texture, which is used to prepare a certain size and geometric shape on the friction pair surface using micro/nano-machining technology.…”

Section: Introductionmentioning

confidence: 99%

Contact and Tribological Study of Micro/Nano Groove Texture on the Surface of Gas Bearing Materials Based on Nanoscale

Yang

Gao

et al. 2022

Nanomaterials

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As a kind of sliding bearing, the gas bearing is widely used in high-speed rotating machinery. It realizes energy cleaning in the field of high-speed rotating machinery. In order to solve the problem of reducing the service life of gas bearings due to friction during startup and shutdown, we use micromachining technology to process groove textures with different groove widths on the surface of 0Cr17Ni7Al, a common material for gas bearings. A ball–disc friction contrast test is conducted under dry friction conditions with and without texture. The experiment shows that the lowest average friction coefficient of 0.8 mm texture is σ = 0.745. When the friction radius is 22.5 mm, the wear rate of 1.0 mm texture is the lowest at ω = 3.118×. However, the maximum friction coefficient reached is σ = 0.898. Under the nanometer scale, the contact between friction pairs is fully analyzed. The influence mechanism of different groove widths, friction impacts and climbing heights on the friction and wear properties of the micromechanical groove texture on the surface of 0Cr17Ni7Al stainless steel is studied at the nano-fractal scale. The effects of different width grooves on the surface texture and tribological properties of the micromachine are studied.

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

Cited by 6 publications

References 33 publications

Tribological, Oxidation and Thermal Analysis of Advanced Microwave–Hydrothermal Synthesised Ti3C2Tx MXene as Additives in Outboard Engine Oil

Tribological, Oxidation and Thermal Analysis of Advanced Microwave–Hydrothermal Synthesised Ti3C2Tx MXene as Additives in Outboard Engine Oil

Synergistic performance evaluation of MoS2–hBN hybrid nanoparticles as a tribological additive in diesel-based engine oil

Contact and Tribological Study of Micro/Nano Groove Texture on the Surface of Gas Bearing Materials Based on Nanoscale

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