Auswahl der wissenschaftlichen Literatur zum Thema „Disulfure de molybdène (MoS2)“
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Zeitschriftenartikel zum Thema "Disulfure de molybdène (MoS2)"
Panigrahi, Pravas Kumar, und Amita Pathak. „Aqueous Medium Synthesis Route for Randomly Stacked Molybdenum Disulfide“. Journal of Nanoparticles 2013 (18.04.2013): 1–10. http://dx.doi.org/10.1155/2013/671214.
Der volle Inhalt der QuelleLuo, Hao, Ling Zhi Zhang und Lu Yue. „Synthesis of MoS2/C Submicrosphere by PVP-Assisted Hydrothermal Method for Lithium Ion Battery“. Advanced Materials Research 531 (Juni 2012): 471–77. http://dx.doi.org/10.4028/www.scientific.net/amr.531.471.
Der volle Inhalt der QuelleFang, Yueyun, und Qian Qu. „Preparation of Molybdenum Disulfide Nanopowders and Their Adsorption Performance for Rhodamine B“. Journal of Physics: Conference Series 2587, Nr. 1 (01.09.2023): 012009. http://dx.doi.org/10.1088/1742-6596/2587/1/012009.
Der volle Inhalt der QuelleEmrinaldi, Tengku, Cuk Imawan, Riski Titian Ginting und Vivi Fauzia. „Effect of Growth Time on the Structural and Morphological Properties of MoS2 Synthesized via Hydrothermal Method“. Materials Science Forum 1028 (April 2021): 162–67. http://dx.doi.org/10.4028/www.scientific.net/msf.1028.162.
Der volle Inhalt der QuelleSumtong, Peerawith, Vituruch Goodwin, Nuwong Chollacoop und Apiluck Eiad-Ua. „Effect of Mixing of Carbon Support from Sawdust and Sugarcane Bagasse by Hydrothermal Carbonization for Synthesis of Molybdenum Disulfide (MoS2) Catalyst“. Materials Science Forum 940 (Dezember 2018): 35–39. http://dx.doi.org/10.4028/www.scientific.net/msf.940.35.
Der volle Inhalt der QuelleLi, Ziqing, Xixin Wang, Maodan Xu, Zekun Yin, Xu Tan und Jianling Zhao. „Facile Synthesis and Outstanding Supercapacitor Performance of Ternary Nanocomposite of Silver Particles Decorated N/S Dual-Doped Graphene and MoS2 Microspheres Stabilized by Graphene Quantum Dots“. Journal of The Electrochemical Society 169, Nr. 2 (01.02.2022): 020525. http://dx.doi.org/10.1149/1945-7111/ac4f75.
Der volle Inhalt der QuelleChen, Ying, und Wen Chao Peng. „Synthesis of MoS2/Graphene Hybrid for Electrochemical Detection and Catalytic Reduction of 4-Nitrophenol“. Applied Mechanics and Materials 872 (Oktober 2017): 149–54. http://dx.doi.org/10.4028/www.scientific.net/amm.872.149.
Der volle Inhalt der QuelleLi, Yan Juan, Nan Li, Xiao Yan, Yue Chi, Qing Yuan und Xiao Tian Li. „One-Step Hydrothermal Synthesis of MoS2 Nano-Flowers with High Surface Area and Crystalline“. Key Engineering Materials 531-532 (Dezember 2012): 508–11. http://dx.doi.org/10.4028/www.scientific.net/kem.531-532.508.
Der volle Inhalt der QuelleZhang, Jun, Xin Li, Yu Li Feng, Bo Xu und Yan Hui Guo. „Surfactant-Assisted Hydrothermal Synthesis and Characterization of Nano-Sized 2H-MoS2“. Materials Science Forum 694 (Juli 2011): 113–17. http://dx.doi.org/10.4028/www.scientific.net/msf.694.113.
Der volle Inhalt der QuelleNing, Keke, Guoqiang Xiang, Cuicui Wang, Jingxing Wang, Xiaohong Qiao, Ruofei Zhang, Xiuming Jiang, Lijun He und Wenjie Zhao. „UV-emitting polyelectrolyte-modified MoS2 quantum dots for selective determination of nitrophenol in water samples based on inner filter effect“. Canadian Journal of Chemistry 98, Nr. 5 (Mai 2020): 222–27. http://dx.doi.org/10.1139/cjc-2019-0425.
Der volle Inhalt der QuelleDissertationen zum Thema "Disulfure de molybdène (MoS2)"
Casademont, Hugo. „Semi-conducteurs 2D pour l’électronique flexible : évaluation du potentiel du MoS2 monocouche en tant que matériau de canal“. Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLS365/document.
Der volle Inhalt der QuelleThis PhD thesis is dedicated to the assessment of the potential of monolayers of molybdenum disulfide (MoS2) as a N-type channel material for flexible electronics. This 2D semiconductor of atomic-scale thickness is chemically stable, mechanically robust and has a direct bandgap of 1.9 eV. This work includes the synthesis of MoS2 monolayers by Chemical Vapor Deposition (CVD) and the characterization of this material. The MoS2 monolayers were integrated in air-stable N-type transistors. The study highlighted the impact on the device performances of both the environment and the resistances at the MoS2/metal interfaces. Electronic mobilities of 20 cm²/(V.s) in combination with ION/IOFF ratios > 106 were achieved. These performances allowed integrating MoS2 monolayers in flexible transistors. This work was combined with the study of electrografted organic ultrathin films used as gate dielectrics and their integration in MoS2 transistors. This thesis shows that MoS2 monolayers are a viable option for flexible electronics operating at low bias, in particular when they are associated with ultrathin organic dielectrics
Rabaso, Pierre. „Nanoparticle-doped lubricants : Potential of Inorganic Fullerene-like (IF-) molybdenum disulfide for automotive applications“. Thesis, Lyon, INSA, 2014. http://www.theses.fr/2014ISAL0103/document.
Der volle Inhalt der QuelleThe growing environmental concerns, along with the continuous increase in the price of fossil fuels, have highly motivated car manufacturers worldwide to improve the efficiency of their vehicles. The tribological properties of engine and gearbox lubricants have a significant impact on the global efficiency of vehicles, as they contribute to reducing friction in many contacts and allow the downsizing of various components by providing their surfaces with anti-wear protection. The recent breakthroughs in nanoparticle synthesis have opened new prospects in terms of lubricant additivation, with the discovery of the excellent friction and wear reducing properties of nanoparticles such as Inorganic Fullerene-like (IF-) molybdenum or tungsten disulfides. The tribological potential of IF-MoS2 for automobile applications was investigated in this work. The respective influences of nanoparticle size and structure were first of all studied, revealing that poorly crystalline nanoparticles were more efficient in maintaining low-friction tribofilms on steel substrates in severe boundary lubrication regimes regardless of size (for the range studied). All the nanoparticles tested however showed similar performances when proper oil recirculation was ensured, providing a continuous feeding of the contact in nanoparticles. The IF-MoS2 nanoparticles lost their lubricating abilities when added to fully-formulated lubricants. This behavior was attributed to the presence of dispersants in the oil, which dispersed the nanoparticles effectively but prevented them from forming tribofilms on the rubbing surfaces. The well-dispersed IF-MoS2 were shown to enter the contact and exfoliate, but an excessive adsorption of the dispersants on the released MoS2 platelets and/or the steel surfaces is thought to prevent tribofilm adhesion. A balance between nanoparticle dispersion and tribological performance was then found, by using very low concentrations of dispersants. The behavior of nanoparticle-doped oils in various scenarios related to automobile applications was finally explored. The IF-MoS2 provided significant friction and wear reduction at ambient temperature and in milder rolling/sliding test conditions, for smooth and rough surfaces. The risks related to the presence of nanoparticles in the oil in full-film lubrication regimes were partially lifted, with no significant influence on friction witnessed for all the test conditions considered. The ability of IF-MoS2 nanoparticles to protect steel surfaces from surface-initiated Rolling Contact Fatigue was finally shown
Normant, Antoine. „Durabilité d’interfaces tribologiques lubrifiées par des couches minces sous ultravide“. Electronic Thesis or Diss., Ecully, Ecole centrale de Lyon, 2024. http://www.theses.fr/2024ECDL0016.
Der volle Inhalt der QuelleThe use of thin films for the tribological functionalization of surfaces is widespread in industry. The aim is to control wear or friction, depending on whether the coatings are hard or solid lubricants. In the context of dry contacts under vacuum, where adhesive phenomena predominate, mater transfers between surfaces occur. This leads to the formation of an interface that determines the tribological behavior of the contact. Following an analysis of the degradations of a thin layer of TiN in contact with steel in a real mechanism, an appropriate experimental modelling was set up to reproduce those degradations on model surfaces in an environment control tribometer. The sphere/plane geometry of the contact, with the coating deposited on the ball, induces a continuous exposure of the coating to friction, thus accelerating the appearance of degradation. This modelling uses a unique tribometer, enabling tribological experiments to be carried out in all directions of the plane and the measurement of displacement resisting forces in all directions of space, thanks to its 6-axis force sensor. This experimental study highlighted the formation and rupture processes of adhesive junctions in contacts involving commercial thin films of various natures, whether hard (TiN) or with solid lubrication capabilities (MoS2 and hydrogenated amorphous carbon a-C:H). The tribological behavior of the lubricating coatings is compared with that of the hard TiN coating. An analysis of the transfer phenomena in these contacts highlights the distinction between the durability of the coating (tearing for hard coatings and wear for soft ones) and the durability of the contact (characterized by the appearance of macroscopic seizure). The durability of the contact is intrinsically linked to the evolution of the interfacial material formed during the transfer of matter between surfaces, resulting from adhesive phenomena. This study highlights the diversity and complexity of surface modifications induced by friction. An original approach, based on the crossing of friction tracks, converts the tribometer into an analytical tool. It allows to dissociate the respective roles of the various surface modifications on the tribological behavior of the contact. This approach has been applied to the specific case of friction between steel and a thin layer of amorphous hydrogenated carbon
Hadouda, Hamid. „Etude du disulfure de molybdene : mos#2 des premiers depots aux couches minces photoconductrices“. Nantes, 1996. http://www.theses.fr/1996NANT2016.
Der volle Inhalt der QuelleZavala, Sanchez Luz Adela. „Supported metal disulfide (TMS) catalysts for ultra-deep HDS : coupling of IR spectoscopy and microscopy for a deeper insight into active sites“. Thesis, Normandie, 2019. http://www.theses.fr/2019NORMC258.
Der volle Inhalt der QuelleThis work was focused on obtaining an atomic scale characterization of the (Co)MoS2 and (Ni)WS2 slabs of hydrotreating catalysts supported on alumina and to determine the impact of citric acid (CA) addition. In this study, advanced techniques were implemented such as low temperature CO adsorption followed by IR spectroscopy (IR/CO), DFT calculations and high resolution electron microscopy observations in transmission mode and by STEM HAADF.On the non-promoted W and Mo catalysts, CO adsorption makes it possible to discriminate between the sites of the M- and S- edges of the TMS slabs. The determination of the molar extinction coefficients of the adsorbed CO bands allows the morphology of the slabs to be deduced. HR STEM HAADF confirms that the addition of CA modifies the morphology of the TMS slabs from a truncated triangle to a hexagonal shape.On the promoted NiW and CoMo catalysts, electron microscopy shows that the addition of CA decreases the size of the TMS slabs and also leads to the creation of very small clusters (<1 nm). The analysis of isolated particles by HR STEM HAADF allows identifying the nature of the atoms on the edge of the TMS slabs. Thus microscopy and IR/CO show that within the same sulfide slabs, can coexist edges that are fully promoted and partially promoted
Sampieri-Croda, Alvaro. „Synthèse de catalyseurs à base de sulfures de molybdène et nickel-molybdène supportés sur oxydes mésoporeux MCM-41 et SBA-15 : Application en hydrodésulfuration“. Paris 6, 2005. http://www.theses.fr/2005PA066071.
Der volle Inhalt der QuelleBui, Hong Son. „Etude de l'influence physicochimique des environnements gazeux sur le comportement tribomécanique du bi-sulfure de molybdène MoS2“. Poitiers, 2012. http://www.theses.fr/2012POIT2331.
Der volle Inhalt der QuelleThe aim of this study is to characterize experimentally and theoretically the evolution of the friction coefficient of molybdenum disulfide MoS2 in various gases such as in the high vacuum at 10-5 Pa and in the various components gases of the ambient air. We present and discuss the experimental results of the contact XC48/ MoS2/XC48. Our tribological tests are performed on a pin on disk tribometer which located in an ultra high vacuum chamber and which is equipped with one system of gas introduction valves. To clarify the effect of each gas, tribological tests were carried out in the high vacuum (10-5 Pa), in the helium and in the argon at 105 Pa as inert gases, in the nitrogen and in the carbon dioxide at 105 Pa as the less reactive gases, in the oxygen at 105 Pa as the strong reactive gas, in the water vapour with a permanent dipole and in the air ambient with or without the presence of moisture. The tribological nature of molybdenum disulfide MoS2 obtained in high vacuum will be discussed. The influence of gases on the tribological behaviour of molybdenum disulfide will be also discussed and interpreted according to the dipolar character of these gases. A simple calculation of interaction forces MoS2-gas in terms of Van der Waals forces will be presented. Moreover, the influence of Van der Waals forces according to the nature of the gas around the tribocontact on the elastic tensor or on the stress of cleavage of the anisotropic lamellar layers of MoS2 will be discussed too
Conan, Françoise. „Contribution à l'élaboration de nouveaux squelettes organiques via l'étude de la réactivité d'un groupe disulfure de carbone coordine au molybdène“. Brest, 1988. http://www.theses.fr/1988BRES2017.
Der volle Inhalt der QuelleBarreau, Nicolas. „Elaboration et étude de couches minces de disulfure de molybdène et de dérivés de sulfure d'indium : Contribution à la réalisation de photopiles“. Nantes, 2001. http://www.theses.fr/2001NANT2024.
Der volle Inhalt der QuelleWambeke, Anne. „Description et performances en hydrogénation et isomérisation des sites de MoS2/[gamma]Al2O3 modifiés ou non par des métaux de la première série de transition“. Lille 1, 1987. http://www.theses.fr/1987LIL10104.
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