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14 results on '"Huy Le-Quoc"'

4. A study on the synthesis of MoS2/rGO and the investigation of their charge-discharge properties when used as cathode material in a rechargeable Zn-ion battery

Author

Kien Nguyen-Ba Nguyen, Huy Le-Quoc Le, Anh T. Vo Vo, and Duc Binh Luu Luu

Abstract

Recently, rechargeable aqueous Zn-ion batteries have attracted much attention and are potential candidates for grid storage applications because of their low cost and safety. However, to approach practical applications, suitable cathode materials must be developed. As a two-dimensional layered material, MoS2-based materials are very potential candidates. Herein, MoS2/rGO materials were synthesized by hydrothermal method and then the charge-discharge properties of the fabricated materials were investigated when they are used as cathode materials for rechargeable Zn-ion batteries. The MoS2/rGO has an expanded interlayer, which achieves a high initial capacity of about 170 mAh/g but does not have a high stability. In contrast, the MoS2-KOA has a low capacity but is very stable, even after 200 charge/discharge cycles. This study has shown the advantages and disadvantages of MoS2-based materials with expanded interlayer and suggests further work to find methods to stabilize the expanded interlayer to increase the charge/discharge stability.

Published
2022
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5. Electric field tunability of the electronic properties and contact types in the MoS2/SiH heterostructure

Author

Son-Tung Nguyen, Chuong V. Nguyen, Kien Nguyen-Ba, Huy Le-Quoc, Nguyen V. Hieu, and Cuong Q. Nguyen

Subjects
General Chemical Engineering, General Chemistry
Abstract

The generation of layered heterostructures with type-II band alignment is considered to be an effective tool for the design and fabrication of a highly efficient photocatalyst.

Published
2022
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12. Multi-harvesting solution for autonomous sensing node based on LoRa Technology

Author

Fabien Ferrero, Hoai-Nam-Son Truong, Huy Le-Quoc, Laboratoire d'Electronique, Antennes et Télécommunications (LEAT), Université Nice Sophia Antipolis (... - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Centre National de la Recherche Scientifique (CNRS)-Université Côte d'Azur (UCA), The University of Danang, University of Science and Technology, University of Science and Technology, IEEE, CREMANT, Université Côte d'Azur (UCA)-Université Nice Sophia Antipolis (... - 2019) (UNS), and COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Centre National de la Recherche Scientifique (CNRS)

Subjects
LP-WAN, energy harvesting, autonomous sensing application, Computer science, long range capabilities, Real-time computing, Wireless communication, 02 engineering and technology, Capacitors, 7. Clean energy, 01 natural sciences, LoRa, law.invention, Batteries, law, Internet of Things}, 0202 electrical engineering, electronic engineering, information engineering, wide area networks, Wireless, multiharvesting solution, business.industry, Sensors, Node (networking), Photovoltaic cells, Low Power Wide Area Network LoRa technology, 010401 analytical chemistry, 020206 networking & telecommunications, WSN, Wireless sensor networks, 0104 chemical sciences, Power (physics), autonomous miniature wireless sensing node, Piezo harvesting techniques, Capacitor, [SPI.ELEC]Engineering Sciences [physics]/Electromagnetism, Wide area network, energy harvesting solutions, business, Wireless sensor network, Energy harvesting
Abstract

International audience; In this paper, different energy harvesting solutions for an autonomous miniature wireless sensing node are invistagated. The communication part is realized with Low Power Wide Area Network (LP-WAN) LoRa technology that combine lowpower and long range capabilities. Solar, Thermal and Piezo harvesting techniques are compared for autonomous sensing application.

Published
2017
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14. Thin films of thermoelectric compound Mg2Sn deposited by co-sputtering assisted by multi-dipolar microwave plasma

Author

Ana Lacoste, A. Bès, Daniel Fruchart, Nataliya Skryabina, E.K. Hlil, Huy Le-Quoc, T. Tan Vinh, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Magnétisme et Supraconductivité (MagSup), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF), and Micro et NanoMagnétisme (MNM)

Subjects
010302 applied physics, Materials science, Silicon, Mechanical Engineering, [SPI.PLASMA]Engineering Sciences [physics]/Plasmas, Metals and Alloys, Analytical chemistry, chemistry.chemical_element, 02 engineering and technology, Substrate (electronics), Sputter deposition, 021001 nanoscience & nanotechnology, Thermoelectric materials, 01 natural sciences, chemistry, Mechanics of Materials, Sputtering, Seebeck coefficient, 0103 physical sciences, Thermoelectric effect, Materials Chemistry, Thin film, 0210 nano-technology, ComputingMilieux_MISCELLANEOUS
Abstract

Magnesium stannide (Mg2Sn) thin films doped with Ag intended for thermoelectric applications are deposited on both silicon and glass substrates at room temperature by plasma assisted co-sputtering. Characterization by scanning electron microscopy, energy-dispersive X-ray spectroscopy and X-ray diffraction confirms the formation of fine-grained polycrystalline thin films with thickness of 1–3 μm. Stoichiometry, microstructure and crystal structure of thin films are found to vary with target biasing and the distance from targets to substrate. Measurements of electrical resistivity and Seebeck coefficient at room temperature show the maximum power factor of ∼5.0 × 10−3 W K−2 m−1 for stoichiometric Mg2Sn thin films doped with ∼1 at.% Ag.

Published
2011
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