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A facile in situ synthesis of nanocrystal-FeSi-embedded Si/SiOx

Herein, instead of preparing nanoparticles, we report a new approach for creating high-capacity sub-micrometer core-shell structure nanocrystal-FeSi-embedded Si/SiO x (FSO) anode materials according to phase diagram, using the abundant and inexpensive metallurgical Fe-Si alloy as Si/SiO x source. The SiO x shell for the buffer layer is obtained by the oxidation

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Considerations for the use of metal alloys as phase change materials

Khare et al. (2012) [26] used a materials selection procedure and found that metals such as Al, Mg, Si and Zn, and their eutectics 88Al–12Si and 60Al–34Mg–6Zn were highly suitable as a PCM for the duty considered in their research (steam generation from 400 to 750 °C). Their properties, heat of fusion, thermal conductivity, etc. have advantages in the

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Microencapsulation of eutectic and hyper-eutectic Al-Si alloy

Thermal energy storage using phase change materials (PCMs) has been world-widely accepted as an effective technology for energy saving. In this study, Micro-Encapsulated PCMs (MEPCMs) were developed from Al-Si alloys, in which four kinds of Al-Si microspheres with different Al-Si compositions: Al-12%Si, Al-17%Si, Al-20%Si, and Al-30%Si (mass%) were

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High Entropy Materials for Reversible Electrochemical Energy Storage

1 Introduction. Entropy is a thermodynamic parameter which represents the degree of randomness, uncertainty or disorder in a material. 1, 2 The role entropy plays in the phase stability of compounds can be understood in terms of the Gibbs free energy of mixing (ΔG mix), ΔG mix =ΔH mix −TΔS mix, where ΔH mix is the mixing enthalpy, ΔS mix is the mixing

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Scalable fabrication of nano/porous Fe-Si coated by 2D carbon

Fig. 1 describes the overall synthesis method for the PFe-Si@NCNS composite. Typically, our strategy for the PFe-Si part is that the bulk Fe-Si alloy (SEM, as shown in Fig. S1 in the Supporting Information) is transformed into nanoscale Fe-Si by ball milling and then etched in a 1 M HF solution to obtain the nano/porous Fe-Si material.Thereafter, the outer surface of

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Aluminum and silicon based phase change materials for high

The corrosion tests revealed that Al 2 O 3, AlN, and Si 3 N 4 showed high corrosion resistance to molten Al–Si alloys; therefore, these ceramics were suitable as structural materials for a latent heat storage (LHS) system using Al–Si alloys. These results demonstrate the feasibility of high-temperature LHS systems using Al–Si alloys as

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Mg-based compounds for hydrogen and energy storage

1.2 Mg alloys with p-elements (X = Al, Si, Ge, Sn) 1.2.1 Silicon. Silicon has a very low solubility in magnesium of 0.003 %. When MgH 2 mixed with Si is heated until the hydrogen is released, it forms the intermetallic Mg 2 Si [].While the reaction is reversible in a ball-mill environment with hydrogen [14–16], application of pressures of hydrogen to Mg 2 Si up to

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A facile in situ synthesis of nanocrystal-FeSi-embedded Si/SiO

Herein, instead of preparing nanoparticles, we report a new approach for creating high-capacity sub-micrometer core-shell structure nanocrystal-FeSi-embedded Si/SiO x (FSO) anode materials according to phase diagram, using the abundant and inexpensive metallurgical Fe-Si alloy as Si/SiO x source. The SiO x shell for the buffer layer is obtained by the oxidation

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Aluminum and silicon based phase change materials for high

In this study, four binary Al–Si materials with different Al and Si ratios and two ternary materials with Fe or Ni added were studied as medium to high temperature PCMs for thermal energy storage applications. The results indicated that these Al and Si based materials are potentially good candidates for TES applications.

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An overview of TiFe alloys for hydrogen storage: Structure,

Among current hydrogen storage systems, solid-state hydrogen storage systems based on metal/alloy hydrides have advantages with respect to their high volumetric hydrogen storage capacity and safety [40].The volumetric capacity of compressed hydrogen and liquid hydrogen is 40 g/L (at 70 MPa) and 71 g/L, respectively [41, 42].For complex hydrides,

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Thermophysical Properties of Fe-Si and Cu-Pb Melts and Their

The datasets of the enthalpy of mixing [53,54,55], the activities of Si [38,56], and Fe together with the optimised data of the excess Gibbs free energy of mixing of liquid Fe-Si alloys and the Gibbs free energy of mixing [37,39], all obtained at T = 1823 K or close to this temperature, have been used as input data in the CFM to calculate the

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Review of silicon-based alloys for lithium-ion battery anodes

Silicon (Si) is widely considered to be the most attractive candidate anode material for use in next-generation high-energy-density lithium (Li)-ion batteries (LIBs) because it has a high theoretical gravimetric Li storage capacity, relatively low lithiation voltage, and abundant resources. Consequently, massive efforts have been exerted to improve its

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The Use of Fe-26Si-9B Alloy as Phase Change Material in Si

Fe-26Si-9B alloy was selected as a potential phase change material (PCM) to store energy at temperatures up to 1300 °C. A suitable refractory material is crucial to building a PCM container for Fe-26Si-9B alloy in thermal energy storage systems. The refractory material should have the ability to withstand corrosion from liquid Fe-26Si-9B alloy and should not

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A review of metallic materials for latent heat thermal energy storage

The authors also pointed out that thermodynamic calculation is valuable in seeking new potential solar energy thermal storage materials for solar thermal power generation systems. Gokon et al. [103] studied the eutectic and hypereutectic compositions of the Fe–Ge alloys as a promised candidate for the next generation of solar thermal

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Properties of Fe–Si Alloy Anode for Lithium-Ion Battery

Silicon (Si)-based anode materials can increase the energy density of lithium (Li)-ion batteries owing to the high weight and volume capacity of Si. However, their electrochemical properties rapidly deteriorate due to large volume changes in the electrode resulting from repeated charging and discharging. In this study, we manufactured structurally stable Fe–Si

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Preparation of mono-sized high sphericity Al-Si alloy particles for

The thermal analysis results demonstrate that the Al-Si alloy particles prepared in this study have high melting latent heat (approximately 500.87 J/g) and solidification latent heat (approximately 467.26 J/g), showcasing their potential as high-efficiency phase change materials for high-temperature thermal energy storage.

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Miscibility gap alloys with a ceramic matrix for thermal energy storage

New miscibility gap alloys with a ceramic matrix have been explored in the ZrO2–Al, AlN–Al, AlN-(Al–Si), Al2O3–Al and MgO–Al systems with a view to creating oxidation-resistant macroscopically solid, phase change-enhanced, thermal energy storage materials. Materials were manufactured by mixing the components, pressing and firing at 700 °C under

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Advanced Mg-based materials for energy storage

Compared with Li, Mg-based materials show great potential as new energy sources, meanwhile, exhibiting higher mechanical strength than aluminum (Al) alloys and steel [16], [17], [18].They are known for their efficiency and safety in H 2 production and storage, as well as their environmental-friendly nature and high energy density. Mg resources are abundant in nature and its H 2

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Materials | Special Issue : Advanced Energy Storage Materials

Development of advanced materials for high-performance energy storage devices, including lithium-ion batteries, sodium-ion batteries, lithium–sulfur batteries, and aqueous rechargeable batteries; we optimized the composition of a Si–Ti–Al ternary alloy to achieve excellent electrochemical performance in terms of capacity, cyclability

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Macroencapsulated Al-Si phase change materials for high

The in situ alloying formation route involved using Al and Si powders as raw materials and forming the target Al-Si alloys during the high-temperature sintering which also consolidated the external alumina shell. Shape-remodeled macrocapsule of phase change materials for thermal energy storage and thermal management. Appl. Energy, 247 (2019

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Ferro Silicon (FeSi) Alloy

SAM provides the highest quality Ferro Silicon (FeSi) Alloy at competitive prices. & Pharmacy Pharmaceutical Industry Aerospace Agriculture Automotive Chemical Manufacturing Defense Dentistry Electronics Energy Storage & Batteries Fuel Cells Investment Grade Metals Jewelry & Fashion Lighting WM0125 Tungsten Nickel Iron Alloy (W-Ni-Fe

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Enhanced energy density of high entropy alloy (Fe‐Co‐Ni‐Cu‐Mn)

Energy Storage is a new journal for innovative energy storage research, Enhanced energy density of high entropy alloy (Fe-Co-Ni-Cu-Mn) and green graphene hybrid supercapacitor for the silica-combined graphene nanocomposite along with peaks that mimic the potential presence of crystalline Si and materials based on graphene. 47 In case of

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High-entropy Ti-Zr-Hf-Ni-Cu alloys as solid-solid phase change

Phase change materials (PCMs), which are a specialized class of energy-saving materials absorbing or releasing huge latent heat across reversible phase transition upon thermal action, have attracted prominent attention and have been widely investigated owing to their unique feature of high energy storage/release capacity within a narrow temperature range

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Influence of annealing treatment on grain growth, texture and

The accumulated energy storage in Fe-6.5 wt% Si alloy prepared by SLM is low, so it is difficult to promote the grain growth behavior during annealing at 1000 °C. properties of the Fe-6.5 wt% Si alloy annealed at 1100 °C for 1 h in this work and some other soft magnetic materials. Compared to the Fe-3.0 wt% Si alloy, Fe–Ni alloy, and Fe

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Building a Cycle-Stable Fe–Si Alloy/Carbon Nanocomposite

Si is being intensively developed as a safe and high-performance anode for next-generation Li-ion batteries (LIBs); however, its battery application still remains challenging because of its low cycling Coulombic efficiency. To address this issue, we chose a conjugated polymer, polynaphthalene, as a carbon precursor and a low-cost commercial ferrosilicon

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About Fe-si alloy energy storage material

About Fe-si alloy energy storage material

As the photovoltaic (PV) industry continues to evolve, advancements in Fe-si alloy energy storage material have become critical to optimizing the utilization of renewable energy sources. From innovative battery technologies to intelligent energy management systems, these solutions are transforming the way we store and distribute solar-generated electricity.

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