Relevant bibliographies by topics / Disulfure de molybdène (MoS2)

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  1. Journal articles
  2. Dissertations / Theses

Academic literature on the topic 'Disulfure de molybdène (MoS2)'

Author: Grafiati
Published: 27 July 2024
Last updated: 31 July 2025

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Journal articles on the topic "Disulfure de molybdène (MoS2)"

1

Panigrahi, Pravas Kumar, and Amita Pathak. "Aqueous Medium Synthesis Route for Randomly Stacked Molybdenum Disulfide." Journal of Nanoparticles 2013 (April 18, 2013): 1–10. http://dx.doi.org/10.1155/2013/671214.

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Synthesis of poorly crystalline, randomly oriented rag-like structures of molybdenum disulfide has been reported starting from aqueous solutions of ammonium molybdate, and thioacetamide in presence of sodium dodecyl sulfate via calcination of the amorphous precipitates, obtained through acidification of the in situ generated intermediate of ammonium tetrathiomolybdate. X-ray photoelectron spectroscopy, UV-visible spectroscopy, and X-ray diffraction of the calcined samples reveal the formation of single-phase MoS2, while the amorphous precipitates have been found to be a mixture of Mo2S5, MoS3,
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Luo, Hao, Ling Zhi Zhang, and Lu Yue. "Synthesis of MoS2/C Submicrosphere by PVP-Assisted Hydrothermal Method for Lithium Ion Battery." Advanced Materials Research 531 (June 2012): 471–77. http://dx.doi.org/10.4028/www.scientific.net/amr.531.471.

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Molybdenum disulfide/carbon (MoS2/C) submicrosphere was synthesized through a PVP-assisted hydrothermal reaction of sodium molybdate and thiourea (CS(NH2)2), The structure and morphology of MoS2 composites were characterized by X-ray powder diffraction (XRD), scanning electron microscope (SEM) and transmission electron microscopy (TEM). The lithium intercalation/de-intercalation behavior of as-prepared MoS2 submicrosphere electrode was also investigated. It was found that the MoS2 submicrosphere electrode exhibited the best electrochemical performance, retaining a specific capacity of 575mAh/g
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Fang, Yueyun, and Qian Qu. "Preparation of Molybdenum Disulfide Nanopowders and Their Adsorption Performance for Rhodamine B." Journal of Physics: Conference Series 2587, no. 1 (2023): 012009. http://dx.doi.org/10.1088/1742-6596/2587/1/012009.

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Abstract With industrialization, industrial wastewater, especially dye wastewater, flows into water resources, causing serious water pollution problems. Therefore, it is urgent to quarantine organic dyes from wastewater and improve water resource quality. Molybdenum disulfide (MoS2) nanomaterials are widely used in water treatment fields because of their special structure and properties; a case in point is pollutant adsorption, photocatalysis, membrane separation, and antibacterial treatment. In this paper, ammonium molybdate and thiourea were used as precursors; while the relative concentrati
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Emrinaldi, Tengku, Cuk Imawan, Riski Titian Ginting, and 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.

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Recently, molybdenum disulfide (MoS2), have been explored as photothermal materials for solar evaporation. However, the optimum phase for photothermal material, 1T-MoS2 or 2H-MoS2, is still debatable. In this work, we observed the morphological and structural properties of MoS2 prepared by a simple hydrothermal process at 200 °C in three different growth times (16, 20, and 24 hours) using Na2MoO4·2H2O (sodium molybdate) as a Mo precursor, and CS(NH2)2 (thiourea) as S precursor. MoS2 nanoflowers were successfully prepared with nanosheets petals and its diameter increased from 0.4 to 2.8 and 4.5
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Sumtong, Peerawith, Vituruch Goodwin, Nuwong Chollacoop, and 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 (December 2018): 35–39. http://dx.doi.org/10.4028/www.scientific.net/msf.940.35.

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Molybdenum disulfide (MoS2) catalyst on carbon support from varying ratio of sawdust and sugarcane bagasse has been successfully synthesized by hydrothermal carbonization and calcination process. Hydrothermal carbonization of lignocellulosic structure into carbon support is investigated at 200 oC for 24 hr and calcination at 600 °C for 2 hr. The precursor of MoS2 catalyst is prepared using thiourea (CH4N2S) and ammonium molybdate tetrahydrate ((NH4)6Mo7O24 . 4H2O) loaded on carbon support. The lignocellulosic structure as hemicellulose and cellulose is changed at high temperature via hydrother
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Li, Ziqing, Xixin Wang, Maodan Xu, Zekun Yin, Xu Tan, and 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, no. 2 (2022): 020525. http://dx.doi.org/10.1149/1945-7111/ac4f75.

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The ternary nanocomposite of silver particles decorated N/S dual-doped graphene and molybdenum disulfide microspheres (Ag-MoS2/NSG) is prepared by hydrothermal-chemical reduction method with graphene quantum dots (GQDs) as additives and graphene oxide, sodium molybdate and silver nitrate as main raw materials. For comparison, the binary composites of Ag-MoS2, Ag-NSG and MoS2/NSG are also prepared and discussed. In addition, the physicochemical and electrochemical properties of GQDs are studied, and the dynamic analysis of Ag-MoS2/NSG is also carried out. Results show that the ternary composite
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Chen, Ying, and Wen Chao Peng. "Synthesis of MoS2/Graphene Hybrid for Electrochemical Detection and Catalytic Reduction of 4-Nitrophenol." Applied Mechanics and Materials 872 (October 2017): 149–54. http://dx.doi.org/10.4028/www.scientific.net/amm.872.149.

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Large amounts of nitroaromatic compounds are discharged into the natural environment, leading to environmental pollution. The detection and removal of nitroaromatic compounds are therefore important environmental issues. In this study, the hybrid of molybdenum disulfide (MoS2) and graphene (GR) was synthesized using a facile hydrothermal method. Sodium molybdate was selected as the precursors for MoS2. While thiourea was used as reductant and sulfur sources at the same time. Samples were characterized by Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), N2 adsorption, S
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Al-Amer, Kawther, Shroq S. Laradhi, Shrouq H. Aleithan, and Hany M. Abd El-Lateef. "Synthesis, Characterization, and Hydrogen Evolution Reaction Activity of MoS2 Nanostructures Prepared Using Nonionic Surfactant." Catalysts 14, no. 11 (2024): 804. http://dx.doi.org/10.3390/catal14110804.

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Molybdenum disulfide (MoS2) has garnered significant interest as an auspicious catalytic material for the hydrogen evolution reaction (HER). Here, MoS2 nanostructures are synthesized using the hydrothermal method with ammonium molybdate tetrahydrate ((NH4)6Mo7O24∙4H2O) as the Mo source; thioacetamide (CH3CSNH2) as the reducing agent and S source; and nonylphenols 9, nonylphenols 40, and polysorbate 80 as the surfactants. The impact of the different nonionic surfactants on the materials is comprehensively investigated. Moreover, the MoS2 fine structure was characterized using Fourier transform
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Dhariwal, A., and D. Banerjee. "Synthesis of Molybdenum Disulfide-Polyvinyl Alcohol Nanocomposite and Detailed Study of Its Optical Properties." Prabha Materials Science Letters 4, no. 1 (2024): 4–13. https://doi.org/10.33889/pmsl.2025.4.1.002.

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The present study investigates the optical and electronic properties of molybdenum disulfide-polyvinyl alcohol (MoS2-PVA) nanocomposites. Cauliflower-like fractal MoS2 nanostructures were synthesized through a hydrothermal method using sodium molybdate and L-cystine as precursors. These synthesized nanostructures were then incorporated into PVA polymer chains to develop PVA-MoS2 composites. The X-ray diffraction analysis confirmed the successful phase formation of the nanocomposites, while field emission scanning electron microscopic images revealed the one-dimensional structure of the system.
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Li, Yan Juan, Nan Li, Xiao Yan, Yue Chi, Qing Yuan, and Xiao Tian Li. "One-Step Hydrothermal Synthesis of MoS2 Nano-Flowers with High Surface Area and Crystalline." Key Engineering Materials 531-532 (December 2012): 508–11. http://dx.doi.org/10.4028/www.scientific.net/kem.531-532.508.

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One-step and controlled pH hydrothermal synthesis of transition metal disulfide using double molybdenum sources to synthesize MoS2 nano-flowers at low temperature was first reported. Anhydrous molybdenum pentachloride (MoCl5) and four sulfur ammonium molybdate ((NH4) 6Mo7O24•4H2O) were the molybdenum source and CS (NH2) 2 was the sulfur source. Through hydrothermal method, MoS2 was obtained at 180 °C. The pH value of system was controlled by adjusting the molar ratio of MoCl5 and (NH4) 6Mo7O24•4H2O. The products were characterized by powder X-ray diffraction (XRD), scanning electron microscopy
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Dissertations / Theses on the topic "Disulfure de molybdène (MoS2)"

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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.

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Cette thèse est consacrée à l’évaluation du potentiel d'un semi-conducteur 2D, le disulfure de molybdène (MoS2) monocouche, en tant que matériau de canal de type N pour l’électronique flexible. Ce semi-conducteur d'épaisseur nanométrique est stable chimiquement, robuste mécaniquement et possède une bande interdite directe de 1,9 eV. Le travail réalisé couvre en premier lieu la synthèse de monocouches de MoS2 par dépôt chimique en phase vapeur (CVD) et leur caractérisation. Les monocouches synthétisées ont été intégrées avec succès en tant que matériau de canal dans des transistors de type N st
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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.

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Les enjeux environnementaux actuels, ainsi que la hausse continue du prix du pétrole, ont incité les constructeurs automobiles du monde entier à améliorer le rendement de leurs véhicules. Les propriétés tribologiques des lubrifiants des moteurs et boîtes de vitesses ont une influence considérable sur le rendement global des véhicules. Ils réduisent en effet le frottement généré par un grand nombre de contacts, et permettent parfois la réduction de la taille de différents composants en leur conférant une meilleure résistance à l’usure. Les avancées récentes en termes de synthèse de nanoparticul
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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.

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L’utilisation de couches minces pour la fonctionnalisation tribologique des surfaces est largement répandue dans l’industrie. Elle vise à maîtriser l’usure ou le frottement, selon qu’il s’agisse de couches dures ou de lubrifiants solides. Dans le contexte de contacts secs sous vide, où les phénomènes adhésifs sont prédominants, des transferts de matière entre les surfaces interviennent. Ils conduisent à la formation d’une interface qui conditionne le comportement tribologique du contact. Après une analyse approfondie des dégradations d’une couche mince de TiN en contact avec un acier dans un m
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Hadouda, Hamid. "Etude du disulfure de molybdene : mos#2 des premiers depots aux couches minces photoconductrices." Nantes, 1996. http://www.theses.fr/1996NANT2016.

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Le theme de ce travail, objet d'un contrat joule ii, concerne la realisation et la caracterisation de couches minces de disulfure de molybdene, pour application au photovoltaique. Les couches minces de mos#2 ont ete realisees a l'aide de deux techniques simples: la synthese simple a partir d'une couche mince ou d'une plaque de molybdene et quelques mg de soufre, l'ensemble etant recuit dans un tube de pyrex scelle sous vide. Des couches minces stchiometriques de 2h - mos#2 ont ainsi ete obtenues. Cependant leur adherence au substrat est faible et leur compacite mediocre. La reaction a l'etat s
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Zavala, 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.

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Ce travail de thèse a permis d’obtenir une caractérisation à l’échelle atomique des feuillets (Co)MoS2 et (Ni)WS2 de catalyseurs d’hydrotraitement supportés sur alumine et de déterminer l’impact d’un additif organique, l’acide citrique (CA). Dans cette étude des techniques avancées ont été mises en œuvre telles la caractérisation par adsorption de CO à basse température suivie par spectroscopie IR (IR/CO), des calculs DFT et des observations par microscopie électronique haute résolution en mode transmission et par STEM HAADF.Sur les catalyseurs non promu à base de W et de Mo, l’adsorption de C
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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.

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Bui, 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.

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Le but de cette étude est de caractériser expérimentalement et théoriquement l'évolution du coefficient de frottement du bisulfure de molybdène sous vide secondaire à 10-5 Pa et sous les différents gaz composants l'air ambiant. Nous présentons et nous discutons les résultats expérimentaux tribologiques de ce matériau contre l'acier XC48 sous différents environnements gazeux. Nos essais tribologiques sont effectués sur un tribomètre de type pion/disque localisé dans une enceinte à vide secondaire, munie de vannes d'introduction de gaz. Afin d'identifier l'effet de chaque gaz, les tests tribolog
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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.

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La reactivite du complexe du titre est etudiee vis a vis d'alcynes portant des groupes electroattracteurs. On obtient des complexes metallocycliques a liaison molybdene-carbone ou molybdene-soufre. On prepare un complexe original par addition de trois molecules de propiolonitrile. On etudie egalement la reactivite de ces composes heterocycliques vis a vis de ch::(3)i, nabh::(4) et de hc=c-cn
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Barreau, 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.

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Wambeke, 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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