Aerosol-Assisted Chemical Vapor Deposition of Lubricating MoS2 Films. Ferrous Substrates and Titanium Film Doping

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• 作者：Matthew N. McCain ; Bo He ; Javad Sanati ; Q. Jane Wang ; Tobin J. Marks
• 刊名：Chemistry of Materials
• 出版年：2008
• 出版时间：August 26, 2008
• 年：2008
• 卷：20
• 期：16
• 页码：5438-5443
• 全文大小：242K
• 年卷期：v.20,no.16(August 26, 2008)
• ISSN：1520-5002

文摘

MoS₂ thin films have been deposited onto 52100 steel substrates by aerosol-assisted chemical vapor deposition using the metal-organic precursor tetrakis(diethyl-dithiocarbamato)molybdenum(IV) (1). Analysis of the films indicates growth of an initial, highly crystalline FeS layer exhibiting preferred orientation parallel to the substrate, followed by growth of MoS₂ nanoparticles. Friction coefficients for MoS₂-coated steel specimens reach 0.10 when tested at 100 °C in air. Tetrakis(tert-butylthiolato)titanium(IV) (2), dissolved with complex 1 in THF solutions, yields nanoparticle films of variable TiO₂ content as a result of solvent decomposition on MoS₂ and subsequent in situ reaction with the titanium precursor.