Graphical Abstract Figure
Abstract
In situ formation of MoS2 from oil-soluble sulfur-containing organic molybdenum (SOM) additives in lubricating oils is an alternative route of adding MoS2 into oils directly, which is difficult to disperse homogeneously. In this advanced technology, the structures of SOM and the formation of MoS2 during friction determine the efficiencies of SOM additives on the tribological properties of oils. Given the fact that SOM additives have been used intensively in both laboratory researches and industrial applications, this review discusses their molecular structures, tribological behaviors, compatibility with the other additives, and some bottlenecks in practical applications. Moreover, some routes for overcoming the bottlenecks are suggested. This review also concludes the basic lubrication mechanisms of SOM additives and provides some suggestions for utilizing SOM in advanced lubrication systems. Finally, the future development of SOM as oil additives is proposed and summarized.
References
1.
Gao
, K.
, Wang
, Y.
, Zhang
, B.
, and Zhang
, J.
, 2022
, “Effect of Vacuum Atomic Oxygen Irradiation on the Tribological Properties of Fullerene-Like Carbon and MoS2 Films
,” Tribol. Int.
, 170
, p. 107499
. 2.
Xu
, J.
, Dai
, J.
, Ren
, F.
, Wang
, Y.
, Wang
, P.
, Xu
, S.
, Wu
, S.
, et al, 2021
, “Ultrahigh Radiation Resistance of Nanocrystalline Diamond Films for Solid Lubrication in Harsh Radiative Environments
,” Carbon
, 182
, pp. 525
–536
. 3.
Song
, J.
, Shi
, L.
, Ding
, H.
, Galas
, R.
, Omasta
, M.
, Wang
, W.
, Guo
, J.
, Liu
, Q.
, and Hartl
, M.
, 2022
, “Effects of Solid Friction Modifier on Friction and Rolling Contact Fatigue Damage of Wheel-Rail Surfaces
,” Friction
, 10
(4
), pp. 597
–607
. 4.
Kalin
, M.
, Kogovšek
, J.
, and Remškar
, M.
, 2012
, “Mechanisms and Improvements in the Friction and Wear Behavior Using MoS2 Nanotubes as Potential Oil Additives
,” Wear
, 280–281
, pp. 36
–45
. 5.
Sgroi
, M. F.
, Asti
, M.
, Gili
, F.
, Deorsola
, F. A.
, Bensaid
, S.
, Fino
, D.
, Kraft
, G.
, Garcia
, I.
, and Dassenoy
, F.
, 2017
, “Engine Bench and Road Testing of an Engine Oil Containing MoS2 Particles as Nano-Additive for Friction Reduction
,” Tribol. Int.
, 105
, pp. 317
–325
. 6.
Fan
, X.
, Li
, X.
, Zhao
, Z.
, Yue
, Z.
, Feng
, P.
, Ma
, X.
, Li
, H.
, Ye
, X.
, and Zhu
, M.
, 2022
, “Heterostructured rGO/MoS2 Nanocomposites Toward Enhancing Lubrication Function of Industrial Gear Oils
,” Carbon
, 191
, pp. 84
–97
. 7.
Yi
, M.
, Qiu
, J.
, and Xu
, W.
, 2022
, “Tribological Performance of Ultrathin MoS2 Nanosheets in Formulated Engine Oil and Possible Friction Mechanism at Elevated Temperatures
,” Tribol. Int.
, 167
, p. 107426
. 8.
Hu
, C.
, Yi
, C.
, Bai
, M.
, Lv
, J.
, and Tang
, D.
, 2020
, “Molecular Dynamics Study of the Frictional Properties of Multilayer MoS2
,” RSC Adv.
, 10
(30
), pp. 17418
–17426
. 9.
Onodera
, T.
, Morita
, Y.
, Suzuki
, A.
, Koyama
, M.
, Tsuboi
, H.
, Hatakeyama
, N.
, Endou
, A.
, et al, 2009
, “A Computational Chemistry Study on Friction of h-MoS2. Part I. Mechanism of Single Sheet Lubrication
,” J. Phys. Chem. B
, 113
(52
), pp. 16526
–16536
. 10.
Onodera
, T.
, Morita
, Y.
, Nagumo
, R.
, Miura
, R.
, Suzuki
, A.
, Tsuboi
, H.
, Hatakeyama
, N.
, et al, 2010
, “A Computational Chemistry Study on Friction of h-MoS2. Part II. Friction Anisotropy
,” J. Phys. Chem. B
, 114
(48
), pp. 15832
–15838
. 11.
Tomala
, A.
, Ripoll
, M. R.
, Gabler
, C.
, Remškar
, M.
, and Kalin
, M.
, 2017
, “Interactions Between MoS2 Nanotubes and Conventional Additives in Model Oils
,” Tribol. Int.
, 110
, pp. 140
–150
. 12.
Xu
, W.
, Fu
, C.
, Hu
, Y.
, Chen
, J.
, Yang
, Y.
, and Yi
, M.
, 2021
, “Synthesis of Hollow Core-Shell MoS2 Nanoparticles With Enhanced Lubrication Performance as Oil Additives
,” Bull. Mater. Sci.
, 44
(2
), p. 88
. 13.
Wang
, S.
, Chen
, D.
, Chen
, Y.
, and Zhu
, K.
, 2020
, “Dispersion Stability and Tribological Properties of Additives Introduced by Ultrasonic and Microwave Assisted Ball Milling in Oil
,” RSC Adv.
, 10
(42
), pp. 25177
–25185
. 14.
Kumari
, S.
, Chouhan
, A.
, Siva Kumar Konathala
, L. N.
, Sharma
, O. P.
, Ray
, S. S.
, Ray
, A.
, and Khatri
, O. P.
, 2022
, “Chemically Functionalized 2D/2D Hexagonal Boron Nitride/Molybdenum Disulfide Heterostructure for Enhancement of Lubrication Properties
,” Appl. Surf. Sci.
, 579
, p. 152157
. 15.
Koshy
, C. P.
, Rajendrakumar
, P. K.
, and Thottackkad
, M. V.
, 2015
, “Evaluation of the Tribological and Thermo-Physical Properties of Coconut Oil Added With MoS2 Nanoparticles at Elevated Temperatures
,” Wear
, 330–331
, pp. 288
–308
. 16.
Yamamoto
, Y.
, Gondo
, S.
, Kamakura
, T.
, and Tanaka
, N.
, 1986
, “Frictional Characteristics of Molybdenum Dithiophosphates
,” Wear
, 112
(1
), pp. 79
–87
. 17.
Balarini
, R.
, Diniz
, G. A. S.
, Profito
, F. J.
, and Souza
, R. M.
, 2020
, “Comparison of Unidirectional and Reciprocating Tribometers in Tests With MoDTC-Containing Oils Under Boundary Lubrication
,” Tribol. Int.
, 149
, p. 105686
. 18.
Vaitkunaite
, G.
, Espejo
, C.
, Thiebaut
, B.
, Neville
, A.
, and Morina
, A.
, 2022
, “Low Friction Tribofilm Formation and Distribution on an Engine Cylinder Tested With MoDTC-Containing Low Viscosity Engine Lubricants
,” Tribol. Int.
, 171
, p. 107551
. 19.
Kiw
, Y. M.
, Adam
, P.
, Schaeffer
, P.
, Thiébaut
, B.
, Boyer
, C.
, and Obrecht
, N.
, 2022
, “Molecular Evidence for Improved Tribological Performances of MoDTC Induced by Methylene-bis(Dithiocarbamates) in Engine Lubricants
,” RSC Adv.
, 12
(36
), pp. 23083
–23090
. 20.
Bai
, L.
, Meng
, Y.
, Khan
, Z. A.
, and Zhang
, V.
, 2017
, “The Synergetic Effects of Surface Texturing and MoDDP Additive Applied to Ball-on-Disk Friction Subject to Both Flooded and Starved Lubrication Conditions
,” Tribol. Lett.
, 65
(4
), p. 163
. 21.
De Feo
, M.
, Minfray
, C.
, De Barros Bouchet
, M. I.
, Thiebaut
, B.
, and Martin
, J. M.
, 2015
, “MoDTC Friction Modifier Additive Degradation: Correlation Between Tribological Performance and Chemical Changes
,” RSC Adv.
, 5
(114
), pp. 93786
–93796
. 22.
Losi
, G.
, Peeters
, S.
, Delayens
, F.
, Vezin
, H.
, Loehlé
, S.
, Thiebaut
, B.
, and Righi
, M. C.
, 2021
, “Experimental and Ab Initio Characterization of Mononuclear Molybdenum Dithiocarbamates in Lubricant Mixtures
,” Langmuir
, 37
(16
), pp. 4836
–4846
. 23.
Al Kharboutly
, M.
, Veryasov
, G.
, Gaval
, P.
, Verchere
, A.
, Camp
, C.
, Quadrelli
, E. A.
, Galipaud
, J.
, et al, 2021
, “Mo (VI) Dithiocarbamate With No Pre-Existing Mo-S-Mo Core as an Active Lubricant Additive
,” Tribol. Int.
, 154
, p. 106690
. 24.
Trindade
, E. D.
, Zuleta Durango
, A.
, and Sinatora
, A.
, 2015
, “Friction and Wear Performance of MoDTC-Containing and Ester-Containing Lubricants Over Steel Surfaces Under Reciprocating Conditions
,” Lubr. Sci.
, 27
(4
), pp. 217
–229
. 25.
Rai
, Y.
, Neville
, A.
, and Morina
, A.
, 2016
, “Transient Processes of MoS2 Tribofilm Formation Under Boundary Lubrication
,” Lubr. Sci.
, 28
(7
), pp. 449
–471
. 26.
Komaba
, M.
, Kondo
, S.
, Suzuki
, A.
, Kurihara
, K.
, and Mori
, S.
, 2019
, “Kinetic Study on Lubricity of MoDTC as a Friction Modifier
,” Tribol. Online
, 14
(4
), pp. 220
–225
. 27.
Deshpande
, P.
, Minfray
, C.
, Dassenoy
, F.
, Le Mogne
, T.
, Jose
, D.
, Cobian
, M.
, and Thiebaut
, B.
, 2018
, “Tribocatalytic Behaviour of a TiO2 Atmospheric Plasma Spray (APS) Coating in the Presence of the Friction Modifier MoDTC: A Parametric Study
,” RSC Adv.
, 8
(27
), pp. 15056
–15068
. 28.
Luan
, J.
, Gao
, J.
, Cao
, L.
, Wan
, Y.
, and Li
, R.
, 2022
, “Tribological Properties of Micro-Arc Oxidized TC4 Titanium Alloy Under the Action of Oil-Soluble Organic Molybdenum Additives
,” Tribology
, 42
(2
), pp. 294
–304
. 29.
Yang
, D.
, Liu
, X.
, and Tian
, Y.
, 2022
, “Suppressed MoO3/FeMoO4 Formation in Molybdenum Dialkyl-Dithiocarbamate-Derived Tribofilms on Nitrogen-Incorporated Al-Mg-Ti-B Coatings
,” Tribol. Int.
, 167
, p. 107374
. 30.
Du
, S.
, Yue
, W.
, Wang
, Y.
, She
, D.
, Huang
, H.
, and Fu
, Z.
, 2016
, “Synergistic Effects Between Sulfurized-Nanocrystallized 316L Steel and MoDTC Lubricating Oil Additive for Improvement of Tribological Performances
,” Tribol. Int.
, 94
, pp. 530
–540
. 31.
Wang
, Y.
, Yue
, W.
, She
, D.
, Fu
, Z.
, Huang
, H.
, and Liu
, J.
, 2014
, “Effects of Surface Nanocrystallization on Tribological Properties of 316L Stainless Steel Under MoDTC/ZDDP Lubrications
,” Tribol. Int.
, 79
, pp. 42
–51
. 32.
Ruan
, H.
, Zhang
, Y.
, Song
, F.
, Wang
, Q.
, Wang
, C.
, and Wang
, T.
, 2023
, “Efficacy of Hierarchical Pore Structure in Enhancing the Tribological and Recyclable Smart Lubrication Performance of Porous Polyimide
,” Friction
, 11
(6
), pp. 1014
–1026
. 33.
Baumann
, R.
, Bouraoui
, Y.
, Teicher
, U.
, Selbmann
, E.
, Ihlenfeldt
, S.
, and Lasagni
, A. F.
, 2023
, “Tailored Laser Structuring of Tungsten Carbide Cutting Tools for Improving Their Tribological Performance in Turning Aluminum Alloy Al6061 T6
,” Materials
, 16
(3
), p. 1205
. 34.
Wang
, J.
, Ren
, S.
, Li
, Z.
, Wang
, C.
, Huang
, X.
, Fu
, C.
, Zheng
, L.
, and Ren
, T.
, 2021
, “Tribological Behavior of a Novel Organic Molybdenum Containing Mercaptotriazine as a Multifunctional Environmentally Friendly Additive
,” Tribol. Int.
, 159
, p. 106988
. 35.
Wang
, J.
, Huang
, X.
, Li
, Z.
, Fu
, C.
, Wang
, C.
, Zheng
, L.
, and Ren
, T.
, 2021
, “Tribological Behavior of a Novel Organic Molybdenum Containing Dimercaptothiadiazole as a Multifunctional Additive in Biodegradable Base Oil
,” Mater. Des
, 206
, p. 109823
. 36.
Huai
, W.
, Chen
, X.
, Lu
, F.
, Zhang
, C.
, Ma
, L.
, and Wen
, S.
, 2020
, “Tribological Properties of Sulfur- and Phosphorus-Free Organic Molybdenum Compound as Additive in Oil
,” Tribol. Int.
, 141
, p. 105944
. 37.
De Barros Bouchet
, M. I.
, Martin
, J. M.
, Oumahi
, C.
, Gorbatchev
, O.
, Afanasiev
, P.
, Geantet
, C.
, Iovine
, R.
, Thiebaut
, B.
, and Heau
, C.
, 2018
, “Booster Effect of Fatty Amine on Friction Reduction Performance of Mo-Based Additives
,” Tribol. Int.
, 119
, pp. 600
–607
. 38.
Morina
, A.
, Neville
, A.
, Priest
, M.
, and Green
, J. H.
, 2006
, “ZDDP and MoDTC Interactions in Boundary Lubrication—The Effect of Temperature and ZDDP/MoDTC Ratio
,” Tribol. Int.
, 39
(12
), pp. 1545
–1557
. 39.
Kiw
, Y. M.
, Schaeffer
, P.
, Adam
, P.
, Thiébaut
, B.
, and Boyer
, C.
, 2022
, “Dithiocarbamate Transfer Reaction From Methylene-bis(Dithiocarbamates) to Molybdenum Dithiocarbamates in Engine Lubricants Investigated Using Laboratory Experiments
,” New J. Chem.
, 46
(46
), pp. 22341
–22352
. 40.
Ratoi
, M.
, Niste
, V. B.
, Alghawel
, H.
, Suen
, Y. F.
, and Nelson
, K.
, 2014
, “The Impact of Organic Friction Modifiers on Engine Oil Tribofilms
,” RSC Adv.
, 4
(9
), pp. 4278
–4285
. 41.
Wu
, N.
, Hu
, N.
, Wu
, J.
, and Zhou
, G.
, 2020
, “Tribology Properties of Synthesized Multiscale Lamellar WS2 and Their Synergistic Effect With Anti-Wear Agent ZDDP
,” Appl. Sci.
, 10
(1
), p. 115
. 42.
Kiw
, Y. M.
, Adam
, P.
, Schaeffer
, P.
, Thiébaut
, B.
, and Boyer
, C.
, 2022
, “Molecular Evidence for Sulfurization of Molybdenum Dithiocarbamates (MoDTC) by Zinc Dithiophosphates: A Key Process in Their Synergetic Interactions and the Enhanced Preservation of MoDTC in Formulated Lubricants?
,” RSC Adv.
, 12
(6
), pp. 3542
–3553
. 43.
Okubo
, H.
, Yonehara
, M.
, and Sasaki
, S.
, 2018
, “In Situ Raman Observations of the Formation of MoDTC-Derived Tribofilms at Steel/Steel Contact Under Boundary Lubrication
,” Tribol. Trans.
, 61
(6
), pp. 1040
–1047
. 44.
Rowan
, E. V.
, Karol
, T. J.
, and Farmer
, H. H.
, 1989
, “Organic Molybdenum Complexes
,” US Patent 4889647.45.
Wang
, B.
, Qiu
, F.
, Barber
, G. C.
, Zou
, Q.
, Wang
, J.
, Guo
, S.
, Yuan
, Y.
, and Jiang
, Q.
, 2022
, “Role of Nano-Sized Materials as Lubricant Additives in Friction and Wear Reduction: A Review
,” Wear
, 490–491
, p. 204206
. 46.
She
, D.
, Gong
, P.
, Wang
, Y.
, Kang
, J.
, Zhu
, L.
, Ma
, G.
, Zhong
, L.
, Huang
, H.
, Wang
, H.
, and Yue
, W.
, 2020
, “Friction-Reduction and Anti-Wear Properties of Polyalphaolefin Oil With Mo-DTC Additive Enhanced by Nano-Carbon Materials
,” Appl. Nanosci.
, 10
(9
), pp. 3539
–3551
. 47.
Nunn
, N.
, Mahbooba
, Z.
, Ivanov
, M. G.
, Ivanov
, D. M.
, Brenner
, D. W.
, and Shenderova
, O.
, 2015
, “Tribological Properties of Polyalphaolefin Oil Modified With Nanocarbon Additives
,” Diamond Relat. Mater.
, 54
, pp. 97
–102
. 48.
Shenderova
, O.
, Vargas
, A.
, Turner
, S.
, Ivanov
, D. M.
, and Ivanov
, M. G.
, 2014
, “Nanodiamond-Based Nanolubricants: Investigation of Friction Surfaces
,” Tribol. Int.
, 57
(6
), pp. 1051
–1057
. 49.
Chang
, W.
, Zheng
, X.
, Yuan
, X.
, and Li
, C.
, 2023
, “Study on the Synergistic Tribological Properties of Alkylated Graphene and Organic Molybdenum
,” Appl. Chem. Ind.
, 52
(03
), pp. 749
–753
. 50.
Jiang
, Y.
, Tang
, W.
, and Peng
, Y.
, 2022
, “Tribological Performance of Nano CaB/MoDDP Compound Lubricant Additive
,” J. Harbin Inst. Technol.
, 54
(7
), pp. 111
–119
. 51.
Waqas
, M.
, Zahid
, R.
, Bhutta
, M. U.
, Khan
, Z. A.
, and Saeed
, A.
, 2021
, “A Review of Friction Performance of Lubricants With Nano Additives
,” Materials (Basel)
, 14
(21
), p. 6310
. 52.
Zhang
, Y.
, Zhang
, S.
, Sun
, D.
, Yang
, G.
, Gao
, C.
, Zhou
, C.
, Zhang
, C.
, and Zhang
, P.
, 2019
, “Wide Adaptability of Cu Nano-Additives to the Hardness and Composition of DLC Coatings in DLC/PAO Solid-Liquid Composite Lubricating System
,” Tribol. Int.
, 138
, pp. 184
–195
. 53.
Yang
, Y.
, Fan
, X.
, Yue
, Z.
, Li
, W.
, Li
, H.
, and Zhu
, M.
, 2022
, “Synergistic Lubrication Mechanisms of Molybdenum Disulfide Film Under Graphene-Oil Lubricated Conditions
,” Appl. Surf. Sci.
, 598
(Oct. 1
), pp. 1
–9
. 54.
Okubo
, H.
, Watanabe
, S.
, Sasaki
, S.
, Tokuta
, Y.
, Moriguchi
, H.
, Iba
, D.
, and Moriwaki
, I.
, 2021
, “Tribological Properties of a Mesh-Like Nanostructured Diamond-Like Carbon (DLC) Lubricated With a Fully Formulated Oil at DLC/Steel Contacts Under Boundary Lubrication
,” Coatings
, 11
(7
), p. 746
. 55.
Zhu
, L.
, Dong
, J.
, and Zeng
, Q.
, 2021
, “High Temperature Solid/Liquid Lubrication Behaviours of DLC Films
,” Lubr. Sci.
, 33
(5
), pp. 229
–245
. 56.
Nakagome
, K.
, Sato
, K.
, Okubo
, H.
, Watanabe
, S.
, and Sasaki
, S.
, 2021
, “Friction and Wear Properties of Hard Coatings on Steel Surfaces Under Lubrication With a Fully Formulated Oil With a Mo Additive
,” Tribol. Online
, 16
(1
), pp. 59
–69
. 57.
Guo
, Y.
, Guo
, P.
, Sun
, L.
, Li
, X.
, Ke
, P.
, Li
, Q.
, and Wang
, A.
, 2019
, “Tribological Properties of Ti-Doped Diamond-Like Carbon Coatings Under Dry Friction and PAO Oil Lubrication
,” Surf. Interface Anal.
, 51
(3
), pp. 361
–370
. 58.
Shi
, J.
, Wang
, W.
, Yang
, J.
, Cao
, X.
, Zhang
, J.
, and Wang
, C.
, 2021
, “Effect of Rotational Speed on the Interfacial Nano-Structural Evolution and Friction Behavior of Hydrogenated Fullerene-Like Carbon (FLC) Films in Vacuum
,” Tribol. Int.
, 154
, p. 106746
. 59.
Qi
, J.
, Liu
, H.
, Luo
, Y.
, Zhang
, D.
, and Wang
, Y.
, 2014
, “Influences of Added Sand-Dust Particles on the Tribological Performance of Graphite-Like Coating Under Solid–Liquid Lubrication
,” Tribol. Int.
, 71
, pp. 69
–81
. 60.
Liu
, Y.
, Chen
, L.
, Jiang
, B.
, Liu
, Y.
, Zhang
, B.
, Xiao
, C.
, Zhang
, J.
, and Qian
, L.
, 2021
, “Origin of Low Friction in Hydrogenated Diamond-Like Carbon Films Due to Graphene Nanoscroll Formation Depending on Sliding Mode: Unidirection and Reciprocation
,” Carbon
, 173
, pp. 696
–704
. 61.
Peng
, D.
, Wang
, J.
, Jiang
, H.
, Zhao
, S.
, Wu
, Z.
, Tian
, K.
, Ma
, M.
, and Zheng
, Q.
, 2022
, “100 km Wear-Free Sliding Achieved by Microscale Superlubric Graphite/DLC Heterojunctions Under Ambient Conditions
,” Natl. Sci. Rev.
, 9
(1
), p. nwab109
. 62.
Long
, Y.
, Wang
, Y.
, Weihnacht
, V.
, Makowski
, S.
, Kubo
, M.
, Martin
, J. M.
, and De Barros Bouchet
, M.-I.
, 2022
, “Mechanism of Superlubricity of a DLC/Si3N4 Contact in the Presence of Castor Oil and Other Green Lubricants
,” Friction
, 10
(10
), pp. 1693
–1706
. 63.
Čoga
, L.
, Akbari
, S.
, Kovač
, J.
, and Kalin
, M.
, 2022
, “Differences in Nano-Topography and Tribochemistry of ZDDP Tribofilms From Variations in Contact Configuration With Steel and DLC Surfaces
,” Friction
, 10
(2
), pp. 296
–315
. 64.
Nakatani
, T.
, Okamoto
, K.
, Nitta
, Y.
, Mochizuki
, A.
, Hoshi
, H.
, and Homma
, A.
, 2008
, “Surface Engineering by Plasma Techniques of DLC for Medical Materials and Blood-Compatibility Evaluation
,” J. Photopolym. Sci. Technol.
, 21
(2
), pp. 225
–230
. 65.
Liu
, Y.
, Zhang
, K.
, Han
, J.-H.
, Hwang
, Y.-H.
, Xu
, S.
, and Kim
, D.-E.
, 2022
, “One-Step Method to Enhance Biotribological Properties and Biocompatibility of DLC Coating by Ion Beam Irradiation
,” Friction
, 10
(7
), pp. 1114
–1126
. 66.
Li
, H.
, Xu
, T.
, Wang
, C.
, Chen
, J.
, Zhou
, H.
, and Liu
, H.
, 2006
, “Humidity Dependence on the Friction and Wear Behavior of Diamond-Like Carbon Film in Air and Nitrogen Environments
,” Diamond Relat. Mater.
, 15
(10
), pp. 1585
–1592
. 67.
Zeng
, Q.
, Yu
, F.
, and Dong
, G.
, 2013
, “Superlubricity Behaviors of Si3N4/DLC Films Under PAO Oil With Nano Boron Nitride Additive Lubrication
,” Surf. Interface Anal.
, 45
(8
), pp. 1283
–1290
. 68.
Espejo
, C.
, Thiébaut
, B.
, Jarnias
, F.
, Wang
, C.
, Neville
, A.
, and Morina
, A.
, 2019
, “MoDTC Tribochemistry in Steel/Steel and Steel/Diamond-Like-Carbon Systems Lubricated With Model Lubricants and Fully Formulated Engine Oils
,” ASME J. Tribol.
, 141
(1
), p. 012301
. 69.
Komori
, K.
, and Umehara
, N.
, 2017
, “Friction and Wear Properties of Tetrahedral Si-Containing Hydrogenated Diamond-Like Carbon Coating Under Lubricated Condition With Engine-Oil Containing ZnDTP and MoDTC
,” Tribol. Online
, 12
(3
), pp. 123
–134
. 70.
Hashizume
, N.
, Murashima
, M.
, Umehara
, N.
, Tokoroyama
, T.
, and Lee
, W.-Y.
, 2021
, “In Situ Observation of the Formation of MoDTC-Derived Tribofilm on a Ta-C Coating Using Reflectance Spectroscopy and Its Effects on Friction
,” Tribol. Int.
, 162
, p. 107128
. 71.
Masuko
, M.
, Ono
, T.
, Aoki
, S.
, Suzuki
, A.
, and Ito
, H.
, 2015
, “Friction and Wear Characteristics of DLC Coatings With Different Hydrogen Content Lubricated With Several Mo-Containing Compounds and Their Related Compounds
,” Tribol. Int.
, 82
, pp. 350
–357
. 72.
De Feo
, M.
, De Barros Bouchet
, M. I.
, Minfray
, C.
, Esnouf
, C.
, Le Mogne
, T.
, Meunier
, F.
, Yang
, L.
, Thiebaut
, B.
, Pavan
, S.
, and Martin
, J. M.
, 2017
, “Formation of Interfacial Molybdenum Carbide for DLC Lubricated by MoDTC: Origin of Wear Mechanism
,” Wear
, 370–371
, pp. 17
–28
. 73.
Yoshida
, Y.
, and Kunitsugu
, S.
, 2018
, “Friction Wear Characteristics of Diamond-Like Carbon Coatings in Oils Containing Molybdenum Dialkyldithiocarbamate Additive
,” Wear
, 414–415
, pp. 118
–125
. 74.
Kassim
, K. A. M.
, Tokoroyama
, T.
, Murashima
, M.
, Lee
, W. Y.
, Umehara
, N.
, and Mustafa
, M. M. B.
, 2021
, “Wear Acceleration of a-C:H Coatings by Molybdenum-Derived Particles: Mixing and Temperature Effects
,” Tribol. Int.
, 159
, p. 106944
. 75.
Sugimoto
, I.
, Honda
, F.
, and Inoue
, K.
, 2013
, “Analysis of Wear Behavior and Graphitization of Hydrogenated DLC Under Boundary Lubricant With MoDTC
,” Wear
, 305
(1–2
), pp. 124
–128
. 76.
Liu
, K.
, Kang
, J.-J.
, Zhang
, G.-A.
, Lu
, Z.-B.
, and Yue
, W.
, 2021
, “Effect of Temperature and Mating Pair on Tribological Properties of DLC and GLC Coatings Under High Pressure Lubricated by MoDTC and ZDDP
,” Friction
, 9
(6
), pp. 1390
–1405
. 77.
Ueda
, M.
, Kadiric
, A.
, and Spikes
, H.
, 2021
, “Wear of Hydrogenated DLC in MoDTC-Containing Oils
,” Wear
, 474–475
, p. 203869
. 78.
Donnet
, C.
, Fontaine
, J.
, Grill
, A.
, and Le Mogne
, T.
, 2001
, “The Role of Hydrogen on the Friction Mechanism of Diamond-Like Carbon Films
,” Tribol. Lett.
, 9
(3/4
), pp. 137
–142
. 79.
Bhowmick
, S.
, Banerji
, A.
, Khan
, M. Z. U.
, Lukitsch
, M. J.
, and Alpas
, A. T.
, 2015
, “High Temperature Tribological Behavior of Tetrahedral Amorphous Carbon (ta-C) and Fluorinated ta-C Coatings Against Aluminum Alloys
,” Surf. Coat. Technol.
, 284
, pp. 14
–25
. 80.
Kim
, D.-W.
, and Kim
, K.-W.
, 2013
, “Effects of Sliding Velocity and Normal Load on Friction and Wear Characteristics of Multi-layered Diamond-Like Carbon (DLC) Coating Prepared by Reactive Sputtering
,” Wear
, 297
(1–2
), pp. 722
–730
. 81.
Zhang
, S.
, Zhu
, L.
, Wang
, Y.
, Kang
, J.
, Wang
, H.
, Ma
, G.
, Huang
, H.
, Zhang
, G. A.
, and Yue
, W.
, 2022
, “Effects of Annealing Treatment on Tribological Behavior of Tungsten-Doped Diamond-Like Carbon Film Under Lubrication (Part 2): Tribological Behavior Under MoDTC Lubrication
,” Friction
, 10
(7
), pp. 1061
–1077
. 82.
Chen
, S.
, Song
, N.
, Zhang
, S.
, Zhang
, Y.
, Yu
, L.
, and Zhang
, P.
, 2023
, “Synergistic Tribological Effect Between Polyisobutylene Succinimide-Modified Molybdenum Oxide Nanoparticle and Zinc Dialkyldithiophosphate for Reducing Friction and Wear of Diamond-Like Carbon Coating Under Boundary Lubrication
,” Friction
, 11
(11
), pp. 2021
–2035
. 83.
Wang
, Y.
, Wang
, Y.
, Kang
, J.
, Ma
, G.
, Zhu
, L.
, Wang
, H.
, Fu
, Z.
, Huang
, H.
, and Yue
, W.
, 2021
, “Tribological Properties of Ti-Doped Diamond-Like Carbon Coatings Under Boundary Lubrication With ZDDP
,” ASME J. Tribol.
, 143
(9
), p. 091901
. 84.
Zhang
, S.
, Yue
, W.
, Kang
, J.
, Wang
, Y.
, Fu
, Z.
, Zhu
, L.
, She
, D.
, and Wang
, C.
, 2019
, “Ti Content on the Tribological Properties of W/Ti-Doped Diamond-Like Carbon Film Lubricating With Additives
,” Wear
, 430–431
, pp. 137
–144
. 85.
Kano
, M.
, Martin
, J. M.
, Yoshida
, K.
, and De Barros Bouchet
, M. I.
, 2014
, “Super-Low Friction of Ta-C Coating in Presence of Oleic Acid
,” Friction
, 2
(2
), pp. 156
–163
. 86.
Khun
, N. W.
, and Liu
, E.
, 2014
, “Effects of Platinum Content on Tribological Properties of Platinum/Nitrogen Doped Diamond-Like Carbon Thin Films Deposited Via Magnetron Sputtering
,” Friction
, 2
(1
), pp. 64
–72
. 87.
Su
, Y.
, Cai
, L.
, Huang
, W.
, Zhang
, T.
, Yu
, W.
, Zhang
, P.
, Hu
, R.
, and Gong
, X.
, 2022
, “Improvement the Tribological Properties of Diamond-Like Carbon Film Via Mo Doping in Diesel Condition
,” Vacuum
, 198
, p. 110920
. 88.
Yang
, X.
, Li
, R.
, Wang
, Y.
, Zhang
, J.
, and Yao
, X.
, 2021
, “Improvement of Mechanical and Tribological Performances of Carbon Nanostructure Films by Cryogenic Treatment
,” Tribol. Int.
, 156
, p. 106819
. 89.
Liang
, J. H.
, Milne
, Z.
, Rouhani
, M.
, Lin
, Y.-P.
, Bernal
, R. A.
, Sato
, T.
, Carpick
, R. W.
, and Jeng
, Y. R.
, 2022
, “Stress-Dependent Adhesion and Sliding-Induced Nanoscale Wear of Diamond-Like Carbon Studied Using In Situ TEM Nanoindentation
,” Carbon
, 193
, pp. 230
–241
. 90.
Ishikawa
, T.
, and Choi
, J.
, 2021
, “Effect of Water Adsorption on the Frictional Properties of Hydrogenated Amorphous Carbon Films in Various Relative Humidities
,” Langmuir
, 37
(3
), pp. 1012
–1024
. 91.
Du
, D. C.
, Kim
, S. S.
, Suh
, C. M.
, Chun
, J. S.
, Moon
, W. S.
, and Kwon
, W. S.
, 2004
, “Effect of MoDDP on the Antioxidative Properties of ZnDDP in Mineral Oil
,” Lubr. Sci.
, 16
(2
), pp. 183
–193
. 92.
Parenago
, O. P.
, Kuz’mina
, G. N.
, and Zaimovskaya
, T. A.
, 2017
, “Sulfur-Containing Molybdenum Compounds as High-Performance Lubricant Additives (Review)
,” Petrol. Chem.
, 57
(8
), pp. 631
–642
. 93.
Wang
, Y.
, Zhang
, P.
, Gao
, X.
, and Cheng
, Y.
, 2023
, “Rheological and Tribological Properties of Polyurea Greases Containing Additives of MoDDP and PB
,” Tribol. Int.
, 180
, p. 108291
. 94.
Zhang
, R. J.
, Li
, S. H.
, Jin
, Y. S.
, Wang
, Y. C.
, and Tung
, S. C.
, 2001
, “Effect of MoDTC and MoDTP on Tribological Behavior of Cylinder Liner/Piston Ring
,” Tribology
, 21
(3
), pp. 191
–195
. 95.
De Barros Bouchet
, M. I.
, Martin
, J. M.
, Le Mogne
, T.
, Bilas
, P.
, Vacher
, B.
, and Yamada
, Y.
, 2005
, “Mechanisms of MoS2 Formation by MoDTC in Presence of ZnDTP: Effect of Oxidative Degradation
,” Wear
, 258
(11–12
), pp. 1643
–1650
. 96.
Khaemba
, D. N.
, Neville
, A.
, and Morina
, A.
, 2016
, “New Insights on the Decomposition Mechanism of Molybdenum DialkyldiThioCarbamate (MoDTC): A Raman Spectroscopic Study
,” RSC Adv.
, 6
(45
), pp. 38637
–38646
. 97.
Grossiord
, C.
, Varlot
, K.
, Martin
, J. M.
, Le Mogne
, T.
, Esnouf
, C.
, and Inoue
, K.
, 1998
, “MoS2 Single Sheet Lubrication by Molybdenum Dithiocarbamate
,” Tribol. Int.
, 31
(12
), pp. 737
–743
. 98.
Peeters
, S.
, Losi
, G.
, Restuccia
, P.
, and Righi
, M. C.
, 2022
, “Unraveling the Mechanism to Form MoS2 Lubricant Layers From MoDTC by Ab Initio Simulations
,” Appl. Surf. Sci.
, 606
, p. 154880
. 99.
Peeters
, S.
, Charrin
, C.
, Duron
, I.
, Loehlé
, S.
, Thiebaut
, B.
, and Righi
, M. C.
, 2021
, “Importance of the Catalytic Effect of the Substrate in the Functionality of Lubricant Additives: The Case of Molybdenum Dithiocarbamates
,” Mater. Today Chem.
, 21
, p. 100487
. 100.
Wang
, F.
, Shang
, L.
, Zhang
, G.
, and Wang
, Z.
, 2022
, “Polyethylene Glycol Derived Carbon Quantum Dots Nanofluids: An Excellent Lubricant for Diamond-Like Carbon Film/Bearing Steel Contact
,” Friction
, 10
(9
), pp. 1393
–1404
. 101.
Gong
, K.
, Wu
, X.
, Zhao
, G.
, and Wang
, X.
, 2017
, “Tribological Properties of Polymeric Aryl Phosphates Grafted Onto Multi-walled Carbon Nanotubes as High-Performances Lubricant Additive
,” Tribol. Int.
, 116
, pp. 172
–179
. 102.
Ge
, X.
, Chai
, Z.
, Shi
, Q.
, Liu
, Y.
, and Wang
, W.
, 2023
, “Graphene Superlubricity: A Review
,” Friction
, 11
(11
), pp. 1953
–1973
. 103.
Nyholm
, N.
, and Espallargas
, N.
, 2023
, “Functionalized Carbon Nanostructures as Lubricant Additives—A Review
,” Carbon
, 201
, pp. 1200
–1228
. 104.
Wang
, Q.
, Hou
, T.
, Wang
, W.
, Zhang
, G.
, Gao
, Y.
, and Wang
, K.
, 2020
, “Tribological Properties of Black Phosphorus Nanosheets as Oil-Based Lubricant Additives for Titanium Alloy-Steel Contacts
,” R. Soc. Open. Sci.
, 7
(9
), p. 200530
. 105.
Wang
, W.
, Dong
, S.
, Gao
, Y.
, Zhang
, G.
, and Wang
, K.
, 2021
, “Tribological Behaviours of Black Phosphorus/MoS2 Composites as Water-Based Lubrication Additives
,” Lubr. Sci.
, 33
(7
), pp. 404
–416
. 106.
Mittal
, P.
, Rai
, H.
, Kumari
, S.
, Khatri
, O. P.
, and Gosvami
, N. N.
, 2022
, “Efficient Friction and Wear Reduction of Al-Si Alloy Via Tribofilms Generated From Synergistic Interaction of ZDDP and Chemically Functionalized h-BN Additives
,” Appl. Surf. Sci.
, 595
, p. 153520
. 107.
Wang
, J.
, Zhuang
, W.
, Liang
, W.
, Yan
, T.
, Li
, T.
, Zhang
, L.
, and Li
, S.
, 2022
, “Inorganic Nanomaterial Lubricant Additives for Base Fluids, to Improve Tribological Performance: Recent Developments
,” Friction
, 10
(5
), pp. 645
–676
. 108.
Kumar
, S.
, and Kumar
, R.
, 2023
, “Tribological Characteristics of Synthesized Hybrid Nanofluid Composed of CuO and TiO2 Nanoparticle Additives
,” Wear
, 518–519
, p. 204623
. 
