Herein, we report the synthesis of metallic molybdenum microspheres and hierarchical MoS nanostructures by facile template-free solvothermal and hydrothermal approach, respectively. The morphological transition of the Mo microspheres to hierarchical MoS nanoflower architectures is observed to be accomplished with change in solvent from ethylenediamine to water. The resultant marigold flower-like MoS nanostructures are few layers thick with poor crystallinity while spherical ball-like molybdenum microspheres exhibit better crystalline nature. This is the first report pertaining to the synthesis of Mo microspheres and MoS nanoflowers without using any surfactant, template or substrate in hydro/solvothermal regime. It is opined that such nanoarchitectures of MoS are useful candidates for energy related applications such as hydrogen evolution reaction, Li ion battery and pseudocapacitors. Inquisitively, metallic Mo can potentially act as catalyst as well as fairly economical Surface Enhanced Raman Spectroscopy (SERS) substrate in biosensor applications.
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http://dx.doi.org/10.1186/s40580-017-0119-9 | DOI Listing |
Spectrochim Acta A Mol Biomol Spectrosc
February 2025
College of Science, China Jiliang University, Hangzhou 310018, China.
Small
January 2025
School of Mechanical Engineering, Yeungnam University, Gyeongsan si, 712749, Republic of Korea.
In the quest to advance wearable electronics, this study presents a novel method using nitrogen-doped lutetium-carbon microspheres (N, Lu-CMS) for high-performance piezoelectric energy harvesting. The synthesis of N, Lu-CMS begins with the polymerization of sucrose, followed by the preparation of N, Lu-CMS metal complexes through the incorporation of lutetium (III) nitrate hydrate and thiourea, yielding a black powder product. The wearable electronic device is designed with a silicon rubber (SR) matrix, reinforced with 0D fillers such as N, Lu-CMS, or molybdenum disulfide (MoS₂).
View Article and Find Full Text PDFNanotechnology
July 2024
Strait Institute of Flexible Electronics (SIFE, Future Technologies), Fujian Key Laboratory of Flexible Electronics, Fujian Normal University and Strait Laboratory of Flexible Electronics (SLoFE), Fuzhou 350117, People's Republic of China.
Low-temperature KSCN molten salt is a promising technique to synthesize defect-rich MoScatalysts for hydrogen evolution reaction (HER). However, owing to the fast ion diffusion rate for rapid crystal growth, the resultant catalysts show a morphology of microsphere, which aggregates from MoSnanosheets, to suppress the catalytic performance. In this work, large-sized few-layer MoSnanosheets are synthesized via a spatial confinement strategy by adding inert NaCl into the KSCN molten salt.
View Article and Find Full Text PDFSmall
April 2024
Laboratory of Advanced Materials, Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, and State Key Laboratory of Molecular Engineering of Polymers, School of Chemistry and Materials, Fudan University, Shanghai, 200433, P. R. China.
The high-current-density Zn-air battery shows big prospects in next-generation energy technologies, while sluggish O reaction and diffusion kinetics barricade the applications. Herein, the sequential assembly is innovatively demonstrated for hierarchically mesoporous molybdenum carbides/carbon microspheres with a tunable thickness of mesoporous carbon layers (Meso-MoC/C-x, where x represents the thickness). The optimum Meso-MoC/C-14 composites (≈2 µm in diameter) are composed of mesoporous nanosheets (≈38 nm in thickness), which possess bilateral mesoporous carbon layers (≈14 nm in thickness), inner MoC/C layers (≈8 nm in thickness) with orthorhombic MoC nanoparticles (≈2 nm in diameter), a high surface area of ≈426 m g, and open mesopores (≈6.
View Article and Find Full Text PDFACS Appl Mater Interfaces
October 2023
College of Materials Science and Engineering, Nanjing Tech University, Nanjing 210009, China.
Molybdenum disulfide (MoS) has become a new type of microwave absorption (MA) material due to the abundant functional groups and defects, high polarization effect, and controllable structural design. However, the development of MoS has been limited by its inherently low conductance losses and imperfect impedance matching. This study employs ammonium ion (NH) intercalation as a phase manipulation strategy to enhance dielectric loss and form heterogeneous structures by incorporating highly conductive 1T phase into the 2H-MoS crystal phase.
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