By contrast, yolk-shell (Y-S) structure with protective coating shell and internal void room have been demonstrated to achieve good structure stability [25], [26], [27]. For instance, Kang and co-workers reported Y-S Ni-Fe sulfide@C nanospheres for potassium storage, which presented excellent cycling retention and maintained 297 mA h …
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Polymer-based capacitors are essential components in modern electronics and power systems. The long-standing challenge that is the contradiction between the breakdown strength and permittivity of dielectric materials has severely impeded their development for high-power capacitors. Polymer blends have recent
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Multi-shell transition metal oxide hollow spheres show great potential for applications in energy storage because of their unique multilayered hollow structure …
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The batteries with high energy density and low-cost are in high demand to fulfill the need for large-scale energy storage and consumer electrical transportation. Although lithium-ion battery technology has made considerable progress over the years, the high cost of lithium minerals due to their limited reserves in the Earth''s crust (0.0017 wt%) …
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In this work, PI was chosen as polymer matrix, PI composite films embedded with BaTiO3 were prepared by in-situ polymerization. BaTiO3 nanofillers were modified with paraffin to form a core–shell structure in order to improve the dispersion and compatibility with PI matrix. The permittivity of paraffin@BT/PI composite films with 40 …
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Molybdenum selenide (MoSe2) has attracted considerable attention for supercapacitor due to its comparatively high conductivity and large capacity compared to other transition metal dichalcogenides (TMDs). Therefore, we report core–shell structured composite materials of MoSe2 hollow microspheres and polyaniline (PANI) rods by silica …
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For the insulation in the 700 ° C Cylindrical MS Storage Tank, firebrick insulation is used at the bottom of the tank and the side wall, with 30 inches (762 mm) on the bottom and 10 inches (254 mm) on the side wall. The Kaowool insulation is used for both the side wall and the roof, with 10 inches (254 mm) on the side wall and 12 inches (305 ...
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Core-shell structured nanomaterials are suitable for photosensitization due to the unique core-shell structure and high emission and adsorption spectra. Various core-shell structured nanomaterials, including CdS, [ 224] PbS, [ 225, 226] CdTe, [ 227] ZnSe, [ 228] and Ag 2 S, [ 229] etc, have been investigated in QDSSCs.
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By designing any efficient thermal energy storage, it is always advisable to consider framed structure instead of an unframed structure which is closer to reality. It clearly shows a higher rate of stored energy up to 115 % with framed structure (20.4 W) compared to the unframed structure (9.5 W).
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Experimental investigation of the effect of perforated fins on thermal performance enhancement of vertical shell and tube latent heat energy storage systems Energy Convers. Manag., 210 ( 2020 ), Article 112679, 10.1016/j.enconman.2020.112679
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It can be seen that the two-dimensional graded structure can further shorten the total melting time and improve the thermal energy storage rate based on the circumferential graded structure. When the circumferential porosity gradient is 5% and the radial porosity gradient is 6%, the total melting time can be shortened by 32.11% and the …
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The melting process of industrial grade paraffin wax inside a shell-and-tube storage is analyzed by means of numerical simulation and experimental results. For this purpose, the enthalpy porosity method is extended by a continuous liquid fraction function. The extended method is tested using results gained from a gallium melt test inside a …
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Shell Energy is excited to partner with The GPT Group to deliver innovative energy solutions that reduce carbon emissions. Chirnside Park Shopping Centre is now proudly powered by a 2MWh battery and 650kW solar array, supported by our demand response program, which is working to supply up to 70% of electricity during peak energy demand …
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Latent heat storage in a shell-tube is a promising method to store excessive solar heat for later use. The shell-tube unit is filled with a phase change material PCM combined with a high porosity anisotropic copper metal foam (FM) of high thermal conductivity. The PCM-MF composite was modeled as an anisotropic porous medium. …
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Materials with a core–shell and yolk–shell structure have attracted considerable attention owing to their attractive properties for application in Na batteries and other electrochemical energy storage systems. Specifically, their large surface area, optimum void space, porosity, cavities, and diffusion lengt
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Previous studies in literatures adequately emphasized that inserting fins into phase change material is among the most promising techniques to augment thermal performance of shell-and-tube latent heat thermal energy storage unit. In this study, the novel unequal-length fins are designed from the perspective of synergistic benefits of heat …
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Therefore, the combination of copper and core‐shell structure to design an efficient Cu‐based core‐shell structure catalyst is of great significance for electrocatalytic CO2 reduction (CO2RR).
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Improving the melting performance of a horizontal shell-tube latent-heat thermal energy storage unit using local enhanced finned tube Energ Buildings, 183 ( 2019 ), pp. 161 - 173 View PDF View article View in Scopus Google Scholar
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In 2019, the Oil and Gas Climate Initiative (OGCI) launched an initiative to unlock large-scale investment in carbon capture, utilisation and storage, a crucial tool to help society achieve net-zero emissions. The initiative aims to decarbonise industrial hubs around the world, starting in China, Norway, the Netherlands, the UK and the USA.
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Core-shell structures allow optimization of battery performance by adjusting the composition and ratio of the core and shell to enhance stability, energy …
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This paper introduced a further heat transfer enhancement technique by inserting porous metal foam into the fin interstitials for a shell-and-tube thermal energy storage unit. The energy charging/discharging were evaluated by means of indicators including complete melting/solidification time, heat transfer coefficient, temperature …
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Large-scale energy storage technology is crucial to maintaining a high-proportion renewable energy power system stability and addressing the energy crisis …
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Literatures have reported the relationship between the shell morphologies and compactability of MF-shells [20] [21] [22]. In these previous researches, the methods of controlling ...
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Therefore, at the optimal HFP/TrFE ratio of 2/1, a high breakdown strength of 694.8 kV mm −1 and discharged energy density of U e of ∼23.6 J cm −3 have been achieved, with a high energy density of 27.8 J cm −3 and power of 10.7 MW cm −3 delivered to a 20
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This paper concerns enhancement of melting performance in a shell and tube thermal energy storage device containing different structures and materials. Four enhanced approaches including topology optimized fin, metal foam, longitudinal fin and form-stable composite phase change material (PCM) were evaluated and compared …
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The core–shell structure can provide improved conductivity, increased active material loading, and enhanced stability, leading to enhanced energy storage performance. Therefore, CSMOFs and their derivatives offer a versatile platform for …
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Then, the 2D-MMT/SA composite with core-shell structure was produced through self-assembling the SA and 2D-MMT nanosheets. SA was added to SDS solution in which the ratio of SDS, SA and water is 1:15:100 by weight. This mixture solution was heated to ...
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