CERAMICS INTERNATIONAL
·
2023
·
IF 5.2
Jiaxuan Lu,Zhonghua Yao,Hua Hao,Minghe Cao,Hanxing Liu
Field-driven transition from antiferroelectric (AFE) to ferroelectric (FE) states has gained extensive attention for microelectronics and energy storage applications. High dielectric-breakdown-strength (DBDS) for a given material is a necessity to attain full capacity of electrical energy storage . An approach to increasing energy performances is to modulate the related materials to own a higher phase transition electric field ( E FE-AFE ) using elemental dopants . In this case, Cd 2+ was selected as the dopant at A-site in the Pb 0.97 La 0.02 Zr 0.50 Sn 0.45 Ti 0.05 O 3 ceramics to tailor this E FE-AFE value due to the ionic difference enhanced antiferroelectricity. Surprisingly, the doped ceramics increased E FE-AFE by half, DBDS by 16 %, and maintained energy storage efficiency η of over 85 %, providing a way to improve energy storage density. It is worth mentioning that while the performance has been improved, the sintering temperature has been reduced by 170 °C. At the same time, the ceramics maintain good temperature stability, extremely fast discharging speed and discharging energy storage density, indicative of a promising choice in pulse power devices.
研究领域:
材料科学
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电气工程
·
陶瓷
·
能量存储
✓ 已验证
产品关联
DOI
高影响因子
Frontiers of Chemical Science and Engineering
·
2020
·Vol. 15
·期 4
·1021-1032
·
IF 3.552
Tian Yunrui,Du Haishun,Sarwar Shatila,Dong Wenjie,Zheng Yayun,Wang Shumin,Guo Qingping,Luo Jujie,Zhang Xinyu
We present a one-step route for the preparation of nickel phosphide/carbon nanotube (Ni 2 P@CNT) nano-composites for supercapacitor applications using a facile, ultrafast (90 s) microwave-based approach. Ni 2 P nanoparticles could grow uniformly on the surface of CNTs under the optimized reaction conditions, namely, a feeding ratio of 30:50:25 for CNT, Ni(NO 3 ) 2 · 6H 2 O, and red phosphorus and a microwave power of 1000 W for 90 s. Our study demonstrated that the single-step microwave synthesis process for creating metal phosphide nanoparticles was faster and simpler than all the other existing methods. Electrochemical results showed that the specific capacitance of the optimal Ni 2 P@CNT-nanocomposite electrode displayed a high specific capacitance of 854 F · g −1 at 1 A · g −1 and a superior capacitance retention of 84% after 5000 cycles at 10 A·g −1 . Finally, an asymmetric supercapacitor was assembled using the nanocomposite with activated carbon as one electrode (Ni 2 P@CNT//AC), which showed a remarkable energy density of 33.5 W · h · kg −1 and a power density of 387.5 W·kg −1 . This work will pave the way for the microwave synthesis of other transition metal phosphide materials for use in energy storage systems.
研究领域:
材料科学
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电化学
·
能源技术
✓ 已验证
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2022
·
IF 7.392
Siyu Zhang,Pengyang Lei,Jianjian Fu,Xingrui Tong,Zhuanpei Wang,Guofa Cai
We report a solution-processable nanocomposite film based on TiO 2 and polyaniline (PANI) for high-performance electrochromic and energy storage via the combination of electrostatic spray deposition (ESD) and electropolymerization (EPM) techniques. This combined strategy provides an exciting method for high-performance metal oxide/conducting polymer composite with well-controlled morphology and structure. The obtained TiO 2 /PANI composite film with a sea urchin-like porous structure exhibits a unique electron donor–acceptor (D-A) structure, facilitating the electron transport from PANI to TiO 2 . As a result, the nanocomposite film presents excellent electrochemical performances in both electrochromic and energy storage aspects, such as large optical modulation up to 76.9 % at 600 nm, short switching time (<3.6 s), and high coloration efficiency (CE) of 78 cm 2 C -1 . Furthemore, an intelligent energy-storage indicator with energy level monitoring functionality is designed and constructed based on the multicolor composites, in which the energy-storage level can be visually detected in real-time by the different color variations. This work paves a way for developing multicolor nanomaterials in the field of bifunctional electrochromic energy storage.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
Additive Manufacturing
·
2022
·
IF 11.632
Guoqiang Zhou,Mei-Chun Li,Faming Wang,Chaozheng Liu,Changtong Mei
The development of porous three-dimensional (3D) monoliths from natural materials for a wide spectrum of thermal insulation , energy storage and tissue engineering applications has recently gained tremendous interest. However, the lack of 3D structural customization and shape fidelity of monoliths limited their effectiveness in meeting a variety of practical uses. Herein, the material extrusion-based 3D printing technology is used to manufacture a variety of 3D customized monoliths with high shape fidelity that are useful for thermal insulation and energy storage applications . By using sustainable wood-derived cellulose nanofiber (CNF) gels as inks, the 3D printability and shape fidelity are systematically optimized by tailoring the concentration-dependent rheological properties as well as the printing parameters. Benefitted from the high fidelity and self-supporting features, the optimized 3D printed CNF monoliths can be further transformed into porous CNF scaffolds with highly-retained 3D shape using a well-established freeze-drying technique without the use of any specific container. The as-prepared CNF scaffold has porous structure , superior mechanical properties , and low thermal conductivity , demonstrating well heat insulation properties. Furthermore, the porous CNF scaffold can be used as a platform for the in-situ polymerization of aniline (ANi). The resultant CNF-PANi scaffold has a conductivity of 0.334 S•cm −1 , and delivers a high capacitance of 107.9 mF·cm −2 (@0.2 mA·cm −2 ) as a binder-free electrode in supercapacitors . This work provides some guidance for 3D printing of customizable monoliths from sustainable materials by tuning the rheological properties and printing parameters for thermal insulation and energy storage applications.
研究领域:
材料科学
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能源工程
·
生物医学工程
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2019
·
IF 8.456
Chunying Yang,Pengfei Zhang,Amit Nautiyal,Shihua Li,Na Liu,Jialin Yin,Kuilin Deng,Xinyu Zhang
Three-dimensional (3D) nanostructured conducting polymer hydrogels represent a group of high-performance electrochemical energy-storage materials. Here, we demonstrate a molecular self-assembly approach toward controlled synthesis of nanostructured polypyrrole (PPy) conducting hydrogels, which was “cross-linked” by a conjugated dopant molecule trypan blue (TB) to form a 3D network with controlled morphology. The protonated TB by ion bonding aligns the free sulfonic acid groups into a certain spatial structure. The sulfonic acid group and the PPy chain are arranged by a self-sorting mechanism to form a PPy nanofiber structure by electrostatic interaction and hydrogen bonding. It is found that PPy hydrogels doped with varying dopant concentrations and changing dopant molecules exhibited controllable morphology and tunable electrochemical properties. In addition, the conjugated TB dopants promoted interchain charge transport, resulting in higher electrical conductivity (3.3 S/cm) and pseudocapacitance for the TB-doped PPy, compared with PPy synthesized without TB. When used as supercapacitor electrodes, the TB-doped PPy hydrogel reaches maximal specific capacitance of 649 F/g at the current density 1 A/g. The result shows that PPy nanostructured hydrogels can be tuned for potential applications in next-generation energy-storage materials.
研究领域:
材料科学
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电化学
·
纳米技术
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2018
·Vol. 29
·期 23
·20017-20032
·
IF 2.324
Chen Gang,Peng Xiaodong,Fu Chunlin,Cai Wei,Gao Rongli,Fan Peigeng,Zhang Xiaoya,Yi Xin,Ji Cong,Yang Hongqi,Yong Hualei
(1− x ) BaTiO 3 – x BiYbO 3 (abbreviated as (1− x ) BT− x BY, x = 0, 0.03, 0.06 and 0.09) ferroelectric ceramics have been fabricated by conventional sintering (CS) and microwave sintering (MWS) methods. The microstructure, dielectric and ferroelectric properties of (1− x ) BT– x BY ceramics have been investigated systematically. X-ray diffraction patterns indicate all samples possess single perovskite phase and the crystal structure transforms from tetragonal to pseudo-cubic phase with increasing x . It can be also found that denser microstructure and finer grains can be obtained by MWS compared to CS as indicated by scanning electron microscopy. Dielectric measurements reveal that the addition of BY can lead to an obvious relaxation behavior in all samples, and the relaxation characteristics of MWS samples are stronger than those of CS samples. Moreover, the dielectric constant decreases with increasing BY content and the temperature stability and frequency stability of dielectric properties can be enhanced by using MWS method and addition of BY. P – E hysteresis loops become slimmer with the increase of BY content, and the ferroelectric properties of MWS samples are similar to those of CS samples. The leakage current of MWS sample is smaller than that of CS sample from J – E curve. The energy storage efficiency ( η ) increases with increasing BY content, while the energy storage density ( U ) increases and then decreases, U max is obtained at x = 0.06. These results demonstrate that MWS technique and moderate BY content are effective methods to prepare materials for energy storage application.
研究领域:
材料科学
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电子工程
✓ 已验证
DOI
高影响因子
Materials Chemistry Frontiers
·
2021
·Vol. 5
·期 6
·2877-2886
·
IF 6.482
Zhenbin Wang,Zhidong Ma,Weisheng Liu,Hui Zhou,Wenxiang Wang,Jika Sang,Shanshan Zhao,Zhaofeng Wang
The performance and functionality of luminescent materials should be continuously developed to meet the demands of high-level information safety. In this work, a theoretical strategy for multi-mode luminescent color self-evolution in one structure was proposed by hierarchically utilizing the energy transfer processes from traps to luminescent centers. The strategy was further employed for experimental design, and an efficient luminescent structure of CaAl2O4:Eu2+,Mn2+,Er3+,Nd3+ with multi-mode luminescent color self-evolution behaviors was developed. The anticounterfeiting device based on CaAl2O4:Eu2+,Mn2+,Er3+,Nd3+ herein possessed extremely high security level with attractive performance. In addition, the CaAl2O4:Eu2+,Mn2+,Er3+,Nd3+ was confirmed to have energy storage and controllable release activities, based on which high-value encryption devices with dynamic information display were developed.
研究领域:
材料科学
·
光学
·
信息安全
✓ 已验证
DOI
高影响因子
Journal of Energy Storage
·
2022
·
IF 8.907
Dongguang Yan,Shilong Zhao,Chi Ge,Jianzhou Gao,Chengyu Gu,Yingqiang Fan
The complicated preparation process and difficulty of recycling were serious obstacles to the widespread use of solid-solid phase change materials (PCMs). Herein, we reported a novel thermoplastic solid-solid PCMs prepared by a facile one-step feeding method. In this study, the esterification and transesterification among the molten mixture of PBT , PEG and adipic acid were conducted to prepare thermoplastic PEG/PBT/Adipic acid copolymer-based PCMs. Adipic acid, as an auxiliary encapsulation agent, could prevent effectively PEG leakage of PEG/PBT/Adipic acid copolymer-based PCMs with high PEG and low PBT content during the phase change process . For PCM-6 containing 91 wt% PEG, 8 wt% PBT and 1 wt% adipic acid, there were no changes in the shape and chemical structure after multiple thermal cycles. The TG results presented that the initial thermal degradation temperature of PCMs-6 was above 200 °C, which was much higher than the processing and working temperature of PCMs-6. The latent heat of PCMs-6 could reach 136.8 J/g, showing great potential for energy storage, especially in the field of green buildings.
研究领域:
材料科学
·
高分子化学
·
能源材料
·
热功能材料
·
绿色建筑
✓ 已验证
DOI
高影响因子
Materials Science and Engineering B-Advanced Functional Solid-State Materials
·
2024
·
IF 3.9
Rui Ge,Jing Yang,Shuang Zeng,Yuanyuan Zhang,Wei Bai,Xiaodong Tang
Dielectric capacitors are vital components in advanced electrical power systems due to their high power density. However, how to improve their comparatively low energy density is still a major challenge. In this work, we designed a dielectric capacitor with a multilayer structure by inserting different numbers of ferroelectric (Na 0.8 K 0.2 ) 0.5 Bi 4.5 Ti 4 O 15 (NKBT) layers into relaxor ferroelectric Bi 4 LaTi 3.5 Mg 0.5 O 15 (BLTM). Through the regulation of interface engineering, that is, the joint effects of electrical field amplifying, interlayer coupling, and block layer at the interface, enhancing the energy storage density and breakdown field in (NKBT/BLTM) N capacitors. A giant energy density ( W rec ) of 81.2 J/cm 3 and a high breakdown electric field of 4074 kV/cm are achieved in capacitors with N = 4. Consequently, interface engineering can be promoted as a universal route to optimize the energy storage performance of dielectric capacitors.
研究领域:
材料科学
·
能源存储
✓ 已验证
DOI
高影响因子
NANOTECHNOLOGY
·
2021
·Vol. 32
·期 49
·495603
·
IF 3.874
Peiyuan Ji,Jing Wan,Junlin Lu,Dazhi Zhang,Chenguo Hu,Yi Xi
The development of simple preparation and excellent capacity performance electrode materials is the key to energy conversion and storage for supercapacitors. Based on the growth mechanism of crystal, Zn induced NiCo nanosheets and nanoneedles composite structure deposed on Ni foam (ZNC) are successfully attained by a facile one-step method, the growth mechanism of the composite structure is further discussed. Because of its unique composites structure and additional modification of carbon, the carbon modified ZNC (ZNC@C) delivers better energy storage ability (2280 mC cm−2 at 2 mA cm−2) compare to ZNC. An asymmetric supercapacitor (ASC) is assembled by ZNC@C as the positive electrode and carbonized popcorn as the negative electrode. The ASC exhibits good energy storage performance. Zn also positively affects the adsorption energy to enhance the capacitance property based on Density Functional theory calculation. The simple method for the composite structure by tuning the kinetics behaver of the crystal can provide a new strategy in synthesizing the materials, and the material with a unique structure and high performance will have potential applications in the field of energy storage.
研究领域:
材料科学
·
能源存储与转换
✓ 已验证
DOI
高影响因子
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
·
2018
·Vol. 2018
·期 48
·5167-5175
·
IF 2.507
Dimberu G. Atinafu,Wenjun Dong,Jingjing Wang,Xiubing Huang,Jiawei Wang,Hongyi Gao,Ge Wang
Graphical Shape-stabilized porous carbon materials derived from metal organic gel/BN/paraffin were prepared. They have enhanced heat transfer performance in both the solid and liquid phases and large energy storage capacity. New shape-stabilized paraffin/porous carbon materials derived from metal organic gel (cMOG)/boron nitride (BN) composites were prepared by the impregnation method. In the composites, paraffin was used as phase change material, while cMOG as a supporting and loading large paraffin content in the pores owing to high specific surface area and BN employed to enhance the thermal conductivity. The scanning electron microscopy images showed better filler–filler connectivity in BN/cMOG than the individual supporting materials. With the synergy of BN and cMOG, the thermal conductivity of BN/cMOG/PCM composites exhibited up to 232.1 % of pristine PCM and 82.3 % of binary BN/PCM composites at the same wt.-% of BN. The latent heat as-synthesized composite attains up to 163.1 J/g with up to 80 wt.-% of paraffin retained in the composites without any leakage. In addition, the composites revealed enhanced heat transfer performance in both the solid and liquid states. Similarly, the XRD and FTIR analysis showed excellent chemical compatibility between paraffin and the supporting materials. In addition, the composite has high thermal stability, reduced supercooling extent, and better reliability after 200 times thermal cycling, which indicate a promising method for large-scale thermal energy storage.
研究领域:
材料科学
·
能源工程
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Zhe Xiang,Zihao Li,Xijia Yang,Yue Yang,Xuesong Li,Yang Gao,Liying Wang,Wei Lü
Electrochromic device based on zinc anode (ZECD) integrates both electrochromism and energy storage functions within a single system, representing a promising technological advancement for next-generation integrated energy storage devices. This work presents a prototype device demonstrating pendulum-style dual-function electrochromic energy storage system. The system was achieved by incorporating a zinc metal layer as anode into a pendulum-style electrochromic structure, using Prussian Blue/polypyrrole (PB/PPy) and WO 3 /PEDOT:PSS (WO 3 /PP) as two cathode materials. The results show that the composite films significantly enhance the device’s energy storage performance and cycle stability. By using a Zn 2+ /K + dual-ion electrolyte, the coupled anode and cathode form a circuit with high specific capacitance. At a current density of 0.1 mA·cm −2 , the specific capacitance of PB/PPy-Zn is 109.9 mF·cm −2 , with a retention rate of 84.5 % after 2500 cycles. The device can display four different optical states, with an optical contrast as high as 50.1 %. First-principles calculations were also performed, demonstrating that the composite organic materials significantly enhance the charge transfer efficiency of the electrode materials and improve their energy storage performance. The widespread significance of the current pendulum-style integrated device is expected to bring new insights to the field of electrochromic energy storage, with the potential to be applied in broader directions.
研究领域:
材料科学
·
能源技术
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）