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The emergence of energy crisis and greenhouse effect has prompted people to develop energy storage equipment with excellent performance. Supercapacitors (SCs), also known as electrochemical capacitors, are
Abstract. The rare earth hydrogen storage alloy was coated with the same contents of carbon particles using sucrose, glucose, pitch, and chitosan as carbon sources, and compared with the samples of uncoated and mechanically mixed with the carbon powder. The results show that the maximum discharge capacity (C max ), high
Here, we propose rare-earth-ion-doped Ca(OH) 2 materials for thermochemical energy storage at reduced dehydration temperature through extensive DFT computational screening. Rare-earth elements, Sc, Y, La, Gd and Lu, -doped Ca(OH) 2 exhibit lower decomposition barrier in comparison to the Ca(OH) 2 without doping.
Rare earth (RE) ions, with abundant 4f energy level and unique electronic arrangement, are considered as substitutes for Pb 2+ in perovskite nanocrystals (PNCs),
Salt-like hydrides. Hydrogen, specifically H −, can react with alkali metals and alkaline earth metals. The produced hydrides are in the form of white crystals, which generate a lot of heat and are remarkably stable. Thus, such hydrides are suitable for hydrogen storage. (2) Metal-like hydrides.
1. Introduction With the high energy requirements of industrial expansion and daily life, excessive consumption of fossil fuels has resulted in an escalation of environmental problems. 1, 2, 3 Developing sustainable energy by utilizing green resources, combining high-efficiency electrochemical energy storage devices with environmentally
Rare earth metal (Tb, Y) doped SnO 2 @CuS composite was synthesized using the facile hydrothermal method. The fabricated device Y-SnO 2 @CuS//AC revealed energy and power densities of 16.2 W h kg −1 and 740 W kg −1 at 1 A/g.
Rare-earth doping can alter the crystallographic phase, morphology, and size, leading to tunable optical responses of doped nanomaterials. Moreover, rare-earth doping can control the ultimate electronic and catalytic performance of doped nanomaterials in a tunable and scalable manner, enabling significant improvements in energy
A certain content of Yb 2 O 3 can restrain the formation of BaSi 2 O 5 and SiO 2 phases. The addition of rare earth can optimize the microstructure. • With 0.5 mol% Yb 3+, the dielectric energy storage density got the largest value of 3.5 J/cm 3. Ba x Sr 1-x TiO 3-based barium boroaluminosilicate (BST-BBAS) glass-ceramics added with La 2 O
Silver niobate (AgNbO3) is considered as one of the most promising lead-free replacements for lead-containing antiferroelectric (AFE) ceramics, and has been drawing progressively more attention because of its relatively high energy storage density. However, weak ferroelectricity in pure AgNbO3 exerts a negat
Surface modification of rare earth Sm-doped WO 3 films through polydopamine for enhanced electrochromic energy storage performance Author links open overlay panel Haitao Liu a b 1, Yongxiang Wang b 1, Hengyu Wang b, Haolin Xie a, Yinghan Li a, Peng Zou b, Jinming Zeng a, Tongxiang Liang a, Xiaopeng Qi a
It is found that the La-doped BNBT-SBT ceramic simultaneously exhibits a superior energy storage density of 4.4 J cm −3 and an ultrahigh efficiency of ∼91%
For boosting its energy storage capability, rare earth (RE)-doped Co 3 O 4 nanostructures with abundant oxygen vacancies are constructed by simple,
The energy storing unit developed by the present authors is shown in meridian plane section in Fig. 3. It is designed for vertical orientation of the rotation axis, coaxial with local vector of gravitational acceleration. It is intended for operation at very high rotation speed – at or even above 10 6 RPM.
In the recent advancement of energy storage, electrode materials delivering high energy density and the capability to deliver noteworthy power compared to batteries are considered to be promising materials. In this study, hierarchical-structured NiMoO 4 and various concentrations of Ce rare earth metal doped NiMoO 4 materials
Rare Earths (REs) are referred to as ''industrial vitamins'' and play an indispensable role in a variety of domains. This article reviews the applications of REs in traditional metallurgy,
In this work, rare earth (RE) elements, La, Ce, Pr and Nd, were introduced into the V 55 Ti 22.5 Cr 16.1 Fe 6.4 alloy to improve its absorption–desorption properties. 2. Experimental. The purities of the raw materials, vanadium, titanium, chromium, iron and RE, including La, Ce, Pr and Nd in this experiment were 99.9, 99.6, 99.9, 99.8 and 99.
Rare earth metal La-doped induced electrochemical evolution of LiV 3 O 8 with an oxygen vacancy toward a high energy-storage capacity P. Ge, S. Yuan, W. Zhao, L. Zhang, Y. Yang, L. Xie, L. Zhu and X. Cao, J. Mater.
Rare-earth (Re) substitution in BiFeO${}_{3}$ can result in a tuning of the crystal structure from ferroelectric R3c to antiferroelectric Pnma, making (Bi,Re)FeO${}_{3}$ among the best dielectric materials for energy storage. Using a first-principle-based atomistic approach, the authors predict that playing with the Re elements and varying the
To date, rare earth oxides (REOs) have proven to be key components in generating sustainable energy solutions, ensuring environmental safety and economic
After introducing rare-earth ions into the 0.7BT-0.3SBT system, the P-E loops became slender, and P r decreased significantly, leading to good energy storage
So, in the current study, we report the doping of rare earth elements Bi 1−x M x PO 4 (x = 0, 0.15; M = La, Ce, Sm) as a working electrode material for various energy storage applications. The host material, bismuth phosphate, is ideal for rare earth ions because it has the same ionic dimensions, ionic charge, and crystalline arrangement
Firstly, the rare earth metal lanthanum is prone to form the hydrogen bond with carboxylic acids and their derivatives to form stable La-MOF [25]. Moreover, the salicylic acid as a modulator to direct La-MOF grow into a cactus-like morphology with spines on the surface ( Fig. S1 ) by means of stabilizing the active metal sites on the surface of MOF
Even in full cells, the benefits brought by the rare earth oxide coating could still be maintained and a high energy density of 262 Wh kg −1 could be realized. The findings here bring new opportunities to make high-voltage high-nickel low-cobalt materials as practical cathodes to further boost the energy density of lithium-ion batteries.
We have designed a new type of bifunctional microcapsules composed of an n-dodecane PCM (phase change material) core and a rare-earth-doped zirconia shell for photoluminescence enhancement and thermal energy storage and have synthesized a series of microcapsule samples through in-situ polycondensation in a non-aqueous
Hydrogen storage technology is critical for hydrogen energy applications because it bridges the gap between hydrogen production and consumption. The AB 5 hydrogen storage alloy, composed of rare earth elements, boasts favorable attributes such as facile activation, cost-effectiveness, minimal hysteresis, and rapid rates of hydrogen
Rare earth elements (REE) are increasingly critical resources in technological applications, but the current understanding of their separation by uptake
For boosting its energy storage capability, rare earth (RE)-doped Co 3 O 4 nanostructures with abundant oxygen vacancies are constructed by simple, economical, and universal chemical precipitation. By changing different types of RE (RE = La, Yb, Y, Ce, Er 3
Effect of rare earth oxides on the energy storage performance of Sr 0.7 Bi 0.2 TiO 3 ceramics Jingjing Chen 1,2, Peng Zhao 3, Feng Si 1,2, Shuren Zhang 1,2 and Bin Tang 1,2 Published under licence by IOP Publishing Ltd
Thus, further modification of BT-SBT ceramics by ion doping effectively enhances energy storage performances. Mainly, rare-earth elements have not only similar chemical features, but also their ionic radii are between Ba 2+ ion (1.61 Å) and Ti
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