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Synthesis and Characterization of CuO Microflowers/Ppy Nanowires NCs as Anode Materials for Lithium-ion Battery
, M.Sc. Thesis Sharif University of Technology ; Sadrnezhad, Khatiboleslam (Supervisor)
Abstract
Novel Copper Oxide microflowers /Polypyrroles nanowire nanocomposites with various wight ratio have been synthesized.The synthesized CuO/Ppy NCs and Cuo microflowers are characterized by XRD, FT-IR, TGA, FESEM and EDX line analysis/elemntal mapping. The formation mechanism of CuO microflower and Ppy nanowires are also well explained.All syntesized samples have been used as as anode material for li-ion batteries in order to measure their electochemical lithium-ion storage properties. It is demonstrated that presence of Ppy nanowire with different weight ratio plays important role in lithium-storage properties of the hybrid CuO/Ppy NCs. With increase in the mass ratio of Ppy nanowire cyclic...
Relativistic Magnetohydrodynamics of a Spinful and Vortical Fluid: Entropy Current Analysis and Transport Coefficients
, M.Sc. Thesis Sharif University of Technology ; Sadooghi, Neda (Supervisor) ; Kiamari, Motahareh (Co-Supervisor)
Abstract
Fluid Mechanics can be considered as an effective method for studying many-body effects in classical and quantum systems. In recent years, relativistic hydrodynamics has found different applications in different branches of physics. One of these applications is the quantitative description of the experimental behavior of relativistic heavy-ion collisions. More specifically, studying fluid mechanics in the presence of magnetic fields (magnetohydrodynamics) and vorticity is of great importance in heavy-ion collision experiments. In this framework, on the one hand, the interaction between spin and magnetic field, and on the other hand, the interaction between spin and angular momentum of the...
Synthesis and characterization of CuO micro-flowers/PPy nanowires nanocomposites as high-capacity anode material for lithium-ion batteries
, Article Journal of Applied Electrochemistry ; Volume 54, Issue 1 , 2024 , Pages 1-11 ; 0021891X (ISSN) ; Sadrnezhaad, S. K ; Hosseini-Hosseinabad, S. M ; Vahdatkhah, P ; Sharif University of Technology
2024
Abstract
A novel set of CuO/PPy nanocomposites (NCs) with varying PPy weight ratios was synthesized via microwave irradiation and oxidative chemical polymerization. The resulting NCs and CuO micro-flowers were characterized by X-ray diffraction, Fourier transform infrared spectroscopy, thermogravimetric analysis, Brunauer–Emmett–Teller analysis, field-emission scanning electron microscopy, energy-dispersive X-ray spectroscopy line, and dot mapping techniques. The formation mechanism of CuO micro-flowers and PPy nanowires were discussed in detail. The electrochemical lithium-ion storage properties of all samples, used as anode materials in Li-ion batteries, were measured. Our results indicate that PPy...
Copper oxide/graphene-based composites: synthesis methods, appliances and recent advancements
, Article FlatChem ; Volume 47 , 2024 ; 24522627 (ISSN) ; Soroush, E ; Mohammadnejad, S ; Helli, M ; Malek Khachatourian, A ; Toprak, M. S ; Varma, R. S ; Sharif University of Technology
2024
Abstract
Nanomaterials adorned on graphene comprise an essential component of a wide range of devices wherein graphene-based copper oxide nanocomposites have garnered significant attention in recent years. Copper oxides (CuO and Cu2O) are semiconductors with distinctive optical, electrical, and magnetic properties. Their earth abundance, low cost, narrow bandgap, high absorption coefficient, and low toxicity of copper oxides are just a few key advantages. CuO is superior to Cu2O in optical switching applications because of its narrower bandgap. Therefore, integrating graphene with copper oxides renders the ensuing nanocomposites much more valuable for various applications. Not surprisingly, a wide...