To date, the majority of researches have focused on high-entropy perovskite ceramics (HEPCs) structure [31] and dielectric properties of BaTiO 3-based ceramics [15, 16]. Zou [ 32 ] et al. summarized strategies to further improve the energy-storage capacity of lead-free dielectric materials, such as BaTiO 3 (BT) and Bi 0.5 Na 0.5 …
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International Journal of Applied Ceramic Technology is a ceramics journal from the American Ceramic Society (ACerS) publishing applied ceramics research. Abstract A series of (Ba0.2Sr0.2Na0.2Ca0.2La0.2)(ZrxTi1-x)O3 (BSNCLZxT1-x) (x = 0, 0.05, 0.1, 0.15, and 0.2) high-entropy ceramics were prepared in forms of bulks and thin films …
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Chen et al. synthesized a KNN-based high-entropy energy storage ceramic using a conventional solid-state reaction method and proposed a high-entropy strategy to design "local polymorphic distortion" to enhance comprehensive energy storage performance, as evinced in Fig. 6 (a) [23]. The authors suggest that rhombohedral-orthorhombic ...
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High-entropy engineering could enhance the energy storage performance of dielectric capacitors. • An ultrahigh W rec of 5.18 J/cm 3 and η of 93.7% at 640 kV/cm electric field were achieved in the BT-H (Mg) ceramics. • …
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This high-entropy carbide contains five active elements of Fe, Co, Cr, Mn and Ni. The prepared HEMC-3 has abundant pores and a specific surface area of 417.8 m 2 g −1. The large specific surface area makes the HEMCs have high-rate energy storage
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DOI: 10.1016/j.jallcom.2023.172671 Corpus ID: 264577379 High-Performance Energy Storage in BaTiO3-Based Oxide Ceramics Achieved by High-Entropy Engineering @article{Bai2023HighPerformanceES, title={High-Performance Energy Storage in BaTiO3-Based Oxide Ceramics Achieved by High-Entropy Engineering}, author={Mei Bai and …
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Through the response of dipoles to an applied electric field, dielectric-based energy storage capacitors can store and release electric energy at an ultrahigh speed and, thus, are widely investigated for advanced electronic and electrical power systems. 39–41 However, the main challenge of dielectric energy storage lies in their …
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There are different definitions for high-entropy materials [ 25, 34 ]: (i) the presence of at least five elements with 5–35 at% in the composition, (ii) a mixing entropy higher than 1.5 R [ 35 ], and (iii) a mixing entropy higher than 1.61 R. It was suggested that when ΔS mix ≥ 1.5 R, the high amount of T Δ Smix in Eq.
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ABO3-type high-entropy relaxor ferroelectric ceramics have rarely been studied in energy storage capacitor owing to easy formation of impurity phase. In this work, single phase (Bi0 ...
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To achieve domain engineering and improved relaxor behavior in 0.67BiFeO 3-0.33BaTiO 3-based Pb-free ceramics, the concerns have been addressed here by employing a synergistic high-entropy strategy involving the design of the composition of Sr(Mg 1/6 Zn
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However, the low energy storage efficiency and breakdown strength hinder further device miniaturization for energy storage applications. Herein, we design a high configurational entropy (HCE) material BaTiO 3-BiFeO 3-CaTiO 3 with rational microstructural −3.
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The (Bi0.2Na0.2K0.2La0.2Sr0.2)(Ti1-xScx)O3 (BNKLST-xSc) high entropy ceramics (HECs) have been successfully synthesized via a citrate acid method. The effects of Sc-doping on the lattice structure, microstructural morphology, dielectric and energy-storage properties of HECs are comprehensively investigated. The results indicate that …
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This energy storage potential is inseparable from the four effects of high-entropy ceramics. What needs attention is the impact of high-entropy on the structure and performance of " " materials. It reveals a novel method of designing pseudocapacitive materials through high entropy.
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DOI: 10.1016/j.ceramint.2023.02.070 Corpus ID: 256975668 The enhancement of energy storage performance in high-entropy ceramic @article{Sun2023TheEO, title={The enhancement of energy storage performance in high-entropy ceramic}, author={Xiaofan Sun and Cuiping Xu and Peiqi Ji and Zheng Tang and Shulin Jiao and Yanzhou Lu and …
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Consequently, our designed high-entropy ceramics simulta-neously realize an ultrahigh Wrec of 11.0J·cm−3 and a high of 81.9% under a high electric eld of ~ 753 kV·cm−1, in addition to ...
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A novel ABO 3 structural energy storage ceramics (NaBaBi) x (SrCa) (1-3x)/2 TiO 3 ( x = 0.19, 0.195, 0.2, 0.205 and 0.21) was successfully fabricated using the high entropy design concept. The ferroelectric and dielectric properties of non-equimolar ratio high-entropy ceramics were studied in detail. It was found that the dielectric constant of ...
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Herein, a novel pyrochlore component with high-entropy design of Bi 1.5 Zn 0.75 Mg 0.25 Nb 0.75 Ta 0.75 O 7 (BZMNT) bulk endows an excellent energy storage performance of W rec ≈ 2.72 J/cm 3 together with an ultra-high energy efficiency of 91% at a significant enhanced electric field E b of 650 kV/cm.
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DOI: 10.1016/j.mtphys.2024.101418 Corpus ID: 268834429 Remarkable energy-storage density together with efficiency of above 92% in high-entropy ferroelectric ceramics @article{Ning2024RemarkableED, title={Remarkable energy-storage density together with efficiency of above 92% in high-entropy ferroelectric ceramics}, author={Yating Ning …
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The maximum U r e c were 3.55, 4.89, 5.58, and 4.70 J/cm 3 corresponding to x = 0, 0.05, 0.1, and 0.15, respectively. The ''high-entropy'' strategy effectively improves the energy storage density and efficiency of PBCST. The energy storage properties of recently reported ceramic bulks and our samples are summarized in Fig. 8 (g).
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However, the low energy storage efficiency and breakdown strength hinder further device miniaturization for energy storage applications. Herein, we design a high configurational entropy (HCE) material BaTiO 3 -BiFeO 3 -CaTiO 3 with rational microstructural engineering that demonstrates an ultrahigh energy density of 7.2 J cm −3 .
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ABO 3-type high-entropy relaxor ferroelectric ceramics have rarely been studied in energy storage capacitor owing to easy formation of impurity phase. In this work, single phase (Bi 0.2 Na 0.2 Ba 0.2 Sr 0.2 Ca 0.2 )TiO 3 - x mol%PbO high-entropy ceramics are fabricated and investigated.
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and energy storage. Despite ongoing debate regarding the relevance of high-entropy effects in metal alloys22–26 ... be important in high-entropy ceramics (fig. 1), which remain single phase ...
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In this study, a high-entropy perovskite oxide Sr(Zr 0.2 Sn 0.2 Hf 0.2 Ti 0.2 Nb 0.2)O 3 (SZSHTN) was first introduced to Na 0.5 Bi 0.5 TiO 3 (NBT) lead-free ferroelectric ceramics to boost both the high-temperature …
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Energy storage and charge/discharge performance of SBPLNN ceramics aP-E hysteresis loops till the maximum test field of SBPLNN ceramics. bWtol, Wrec, and η as a function of an electric field. c ...
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In this instance, we present a high-entropy tungsten bronze-type relaxor ferroelectric achieved through an equimolar-ratio element design, which realizes a giant recoverable energy density of 11.0 J·cm -3 and a high efficiency of 81.9%. Moreover, the atomic-scale microstructural study confirms that the excellent comprehensive energy …
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As the high-entropy strategy was applied to ceramic in 2015, high-entropy ceramic shows an excellent potential in energy storage, piezoelectric, ferroelectric, and microwave dielectric materials. Surprisingly, the local ion disorder from the interaction among multiple ions exhibits a multiple polarized configuration, efficiently.
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The BTO-based ceramics show gradually reduced hysteresis loss, high P m, and nearly eliminated P r in P-E loops, i.e., from FE features typical of a BTO ceramic with a large P r (12.0 μC cm −2) to relaxor features with a sharply reduced P r …
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With an often highly porous, well-ordered structure and large distance between the metal ions, high-entropy MOFs can be used, for example, in electrochemical energy storage or sensor...
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1. Introduction Lead-free piezoelectric and energy storage ceramics have garnered significant research attention to ensure environmental safety [1, 2].For instance, Bi 0.5 Na 0.5 TiO 3 (BNT) is a promising lead-free ceramic due to its relatively high Curie temperature (~320 C) and large remnant polarization (38 μC/cm 2).).
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High-entropy (Na 0.2 Bi 0.2 Ba 0.2 Sr 0.2 Zn 0.2)TiO 3 ceramics with enhanced energy storage density and reliable stability Author links open overlay panel Chang Liu a 1, Zhikang Ao b 1, Yuhao Kong b, Yang Du b, Jianhong Zhang b, Chongguang Lyu a, Huifang Ma b
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In this article, we provide a comprehensive overview by focusing on the applications of HEMs, which can be mainly classified in HEAs, high-entropy ceramics (HECs), as well as some other high-entropy composites, …
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This paper introduces the design strategy of "high-entropy energy storage" in perovskite ceramics for the first time, which is different from the previous review articles about high-entropy materials and further clarifies the internal relationship between high-entropy ceramics and ferroelectric energy storage.
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High-entropy perovskite oxides (HEPOs) have attracted considerable attention as dielectric ceramics. However, the energy-storage performance of these HEPOs still requires improvement. In this study, a series of (1-x)(Bi 0. 4 Ba 0. 2 K 0. 2 Na 0.2)TiO 3-xNaNbO 3 high-entropy ceramics were designed and prepared using a high …
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The energy storage properties were evaluated by a ferroelectric testing device (TF2000, Germany) and a commercial R-L-C platform (Tongguo, CFD-001, China). 3. Results and discussions Introducing a high entropy with …
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