Gotowe bibliografie tematyczne / MoS2-rGO/Mo

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Gotowa bibliografia na temat „MoS2-rGO/Mo”

Autor: Grafiati
Data publikacji: 6 września 2023

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Artykuły w czasopismach na temat "MoS2-rGO/Mo"

1

Liu, Guangsheng, Kunyapat Thummavichai, Xuefeng Lv, Wenting Chen, Tingjun Lin, Shipeng Tan, Minli Zeng, Yu Chen, Nannan Wang i Yanqiu Zhu. "Defect-Rich Heterogeneous MoS2/rGO/NiS Nanocomposite for Efficient pH-Universal Hydrogen Evolution". Nanomaterials 11, nr 3 (8.03.2021): 662. http://dx.doi.org/10.3390/nano11030662.

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Molybdenum disulfide (MoS2) has been universally demonstrated to be an effective electrocatalytic catalyst for hydrogen evolution reaction (HER). However, the low conductivity, few active sites and poor stability of MoS2-based electrocatalysts hinder its hydrogen evolution performance in a wide pH range. The introduction of other metal phases and carbon materials can create rich interfaces and defects to enhance the activity and stability of the catalyst. Herein, a new defect-rich heterogeneous ternary nanocomposite consisted of MoS2, NiS and reduced graphene oxide (rGO) are synthesized using ultrathin αNi(OH)2 nanowires as the nickel source. The MoS2/rGO/NiS-5 of optimal formulation in 0.5 M H2SO4, 1.0 M KOH and 1.0 M PBS only requires 152, 169 and 209 mV of overpotential to achieve a current density of 10 mA cm−2 (denoted as η10), respectively. The excellent HER performance of the MoS2/rGO/NiS-5 electrocatalyst can be ascribed to the synergistic effect of abundant heterogeneous interfaces in MoS2/rGO/NiS, expanded interlayer spacings, and the addition of high conductivity graphene oxide. The method reported here can provide a new idea for catalyst with Ni-Mo heterojunction, pH-universal and inexpensive hydrogen evolution reaction electrocatalyst.
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2

Trang Phan, Thi Thuy, Thanh Tam Truong, Ha Tran Huu, Le Tuan Nguyen, Van Thang Nguyen, Hong Lien Nguyen i Vien Vo. "Visible Light-Driven Mn-MoS2/rGO Composite Photocatalysts for the Photocatalytic Degradation of Rhodamine B". Journal of Chemistry 2020 (13.08.2020): 1–10. http://dx.doi.org/10.1155/2020/6285484.

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The n%Mn-MoS2/rGO (labeled as n%MMS/rGO, where n% = Mn/(Mn + Mo) in mol) composites were successfully prepared by a facile hydrothermal method from the Mn-MoS2 (MMS) and rGO precursors, in which the MMS was obtained by a facile one-step calcination of (NH4)6Mo7O24·4H2O, (NH2)2CS, and Mn(CH3COO)2·4H2O as precursors in N2 gas at 650°C. The samples were characterized using X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), transmission electron microscopy (TEM), electron paramagnetic resonance spectroscopy (EPR), UV-visible diffuse reflectance spectroscopy (UV-Vis DRS), and X-ray photoelectron spectroscopy (XPS), which indicates the composites containing nanosheets of Mn-MoS2 and rGO components. The photocatalytic activities of the n%MMS/rGO composite photocatalysts were evaluated through the photodegradation of rhodamine B (RhB) under the visible light irradiation. The enhancement in the photocatalytic performance of the achieved composites was attributed to the synergic effect of Mn doping and rGO matrix. The investigation of photocatalytic mechanism was also conducted.
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3

Wang, Yan, Fei Lu, Kun Su, Na Zhang, Yinghan Zhang, Mei Wang i Xi Wang. "Engineering Mo-O-C interface in MoS2@rGO via charge transfer boosts hydrogen evolution". Chemical Engineering Journal 399 (listopad 2020): 126018. http://dx.doi.org/10.1016/j.cej.2020.126018.

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4

MAZUR, Denys, Yaroslav KURYS, Vyacheslav KOSHECHKO i Vitaly POKHODENKO. "EFFECTIVE ELECTROCATALYST FOR HYDROGEN EVOLUTION FROM WATER BASED ON VANADIUM DOPED Mo2C, Mo2N AND REDUCED GRAPHENE OXIDE". Proceedings of the Shevchenko Scientific Society. Series Сhemical Sciences 2022, nr 70 (30.09.2022): 7–15. http://dx.doi.org/10.37827/ntsh.chem.2022.70.007.

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Molybdenum compounds (Mo2C, MoS2, MoP, Mo2N, etc.) and their composites with different nanosized carbon materials are considered to be one of the most promising Pt-free hydrogen evolution reaction (HER) electrocatalysts. Along with non-metallic dopants (N, P etc.), d-metals are also used as dopants to increase the activity of Mo-containing hybrid catalysts in HER. Thus, we have recently shown the possibility of obtaining HER nanocomposite electrocatalysts based on vanadium doped particles of Mo2C and N,P-doped reduced graphene oxide (rGO) using precursor based on polypyrrole, H3PVMo11O40 (PVMo11) and rGO – V-Mo2C/N,P-rGO. It was found that doping with vanadium atoms in situ promotes an increase in the activity of catalysts in HER, compared with the analogue obtained in the absence of V doping. The nature of the nitrogen-containing conjugated polymer can also affect the type of metal-containing particles formed during the high-temperature processing of such macromolecules together with the metal precursors. Given this, the paper shows the possibility of obtaining a promising hybrid electrocatalyst for HER based on vanadium-doped Mo2C, Mo2N and N,P-doped rGO (V-Mo2C,Mo2N/N,P-rGO) by pyrolysis of composite-precursor based on poly-5-aminoindole, PVMo11 and rGO. It was found that the simultaneous presence of Mo2C and Mo2N phases in the catalyst causes an increase in the activity of V-Mo2C,Mo2N/N,P-rGO in HER compared to the analogue containing only Mo2C phase (V-Mo2C/N,P-rGO), which is manifested in reduction in hydrogen evolution overpotential at a current density of 10 mA/cm2 (on 15-29 mV), an increase in the magnitude of exchange currents (by ~ 2.3-2.7 times), as well as in the anodic shift of the process onset potential and the reduction of Tafel slope (in alkaline electrolyte).
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5

Barman, Barun Kumar, Debanjan Das i Karuna Kar Nanda. "Facile and one-step synthesis of a free-standing 3D MoS2–rGO/Mo binder-free electrode for efficient hydrogen evolution reaction". Journal of Materials Chemistry A 5, nr 34 (2017): 18081–87. http://dx.doi.org/10.1039/c7ta05440h.

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6

He, Binhong, Liang Chen, Mingjun Jing, Minjie Zhou, Zhaohui Hou i Xiaobo Chen. "3D MoS2-rGO@Mo nanohybrids for enhanced hydrogen evolution: The importance of the synergy on the Volmer reaction". Electrochimica Acta 283 (wrzesień 2018): 357–65. http://dx.doi.org/10.1016/j.electacta.2018.06.168.

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7

Zhang, Songlin, Yujiao Xie, Mengna Yang, Zhongying Li, Lulu Zhang, Jiahao Guo, Jing Tang, Junming Chen i Xuchun Wang. "A defect-rich ultrathin MoS2/rGO nanosheet electrocatalyst for the oxygen reduction reaction". RSC Advances 11, nr 40 (2021): 24508–14. http://dx.doi.org/10.1039/d1ra03552e.

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A column-like MoS2/rGO with rich-defects nanosheets was prepared. The column-like structure, ultrathin nanosheets and the interaction of Mo atoms with graphene, and rich-defects is the guarantee of the outstanding ORR performance.
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8

Elkatlawy, Saeid M., Abdelhamid A. Sakr, John Wang i Abdelnaby M. Elshahawy. "Constructive Electroactive 2D/2D MoS2-N-rGO and 1D/2D Bi2S3-N-rGO Heterostructure for Excellent Mo-Bi Supercapattery Applications". Journal of Inorganic and Organometallic Polymers and Materials, 22.03.2023. http://dx.doi.org/10.1007/s10904-023-02607-x.

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AbstractMetal sulfides including MoS2 and Bi2S3 materials, have been considered as a strong candidate for supercapacitor applications. However, the short-term stability and low surface area have limited the establishment of such eco-friendly materials in energy storage. In this work, an effective strategy is designed to in-situ combine transition metal sulfides with nitrogen doped reduced graphene oxide hydrogels and improve the overall supercapattery properties. Precisely, MoS2-N-rGO and Bi2S3-N-rGO hydrogels have been developed via hydrothermal route. The morphological analysis manifests two-dimensional 2D/2D heterostructure for the MoS2-N-rGO and 1D/2D heterostructure for the Bi2S3-N-rGO. The cyclic voltammetry studies showed a battery-like electrochemical behavior for the synthesized hydrogels. The calculated capacitance for MoS2-N-rGO and Bi2S3-N-rGO are about 438 F/g and 342 F/g @ 1 A/g with 50% and 41% of their capacitance initial values @ 20 A/g, respectively. The cycling performance showed that MoS2-N-rGO and Bi2S3-N-rGO can maintain 90% and 98% of their original specific capacitance after 1000 cycles life. Furthermore, the supercapattery device was fabricated using MoS2-N-rGO as cathode and Bi2S3-N-rGO as anode. The hybrid device is capable of offering 33.4 Wh/kg energy density, at 0.85 kW/kg power density, with 44.7% retention at 20 A/g. Notably, the overall electrochemical behavior of Mo-Bi supercapattery device is remarkable among the pointed behaviors for other hybrid devices.
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