Journal of Materials Chemistry A
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2024
·Vol. 12
·期 9
·5261-5268
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IF 10.7
Jianwei Zhao,Hongtian Li,Yuxiao Du,Xiaoxin Chen,Hailan Qin,Jinming Wang,Tingnan Yan,Shuhui Yu,Yongming Hu,Dawei Wang
Lead-free ceramics have received considerable research interest because of their environmentally friendly characteristics and superb performance in energy storage applications, which are critical for pulsed power electronic systems. In this work, we sintered a series of (0.90 − x)BiFeO3–xBaTiO3–0.10CaHfO3 lead-free ceramics and comprehensively probed the crystallographic structure, grain morphology, electrical properties, etc., to assess their capability for use in energy storage applications. The 0.50BiFeO3–0.40BaTiO3–0.10CaHfO3 ceramic achieved an ultrahigh recoverable energy storage density of 4.70 J cm−3 and an outstanding energy conversion efficiency of 79% and can be considered an excellent material candidate for use in high-power energy storage devices.
研究领域:
材料科学
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电气工程
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能量存储
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产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
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2025
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IF 19
Weipeng Liu,Zhen Liu,Lei Zhao,Yongzhi Wang,Mengwei Tian,Qibin Yuan,Hu Nan,Kongjun Zhu,Jing Wang
Dielectric energy storage capacitors play a pivotal role in advanced electronics and power devices due to their superb power density and fast charge-discharge characteristics. A synergistic elevation of energy storage density and efficiency stands as an indispensable precondition for downsizing devices and expanding their functional versatility. In the present work, guided by the phase field simulation, the synergistic optimization of phase and entropy engineering is realized in (1- x ) (Ag 0.71 Bi 0.07 Sr 0.04 )(Nb 0.85 Ta 0.15 )O 3 - x (0.85NaNbO 3 -0.15BiFeO 3 ) ceramics. With the greatly enhanced maximum displacement and breakdown strength, suppressed remnant displacement and hysteresis, an ultrahigh recoverable energy storage density of 13.5 J cm −3 with the efficiency of 81.7% is achieved, attaining the peak value of bulk AgNbO 3 -based ceramics. This strategy offers a reasonable and universal approach to enhance the energy storage performance in dielectrics featuring diverse phase structures.
研究领域:
材料科学
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凝聚态物理
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电气工程
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陶瓷材料
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纳米技术
✓ 已验证
产品关联
DOI
高影响因子
Nanomaterials
·
2020
·Vol. 10
·期 6
·1097
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IF 4.324
Xueying Mu,Yunhui Li,Xiaoguang Liu,Changde Ma,Hanqing Jiang,Jiayi Zhu,Xuecheng Chen,Tao Tang,Ewa Mijowska
Polyethylene terephthalate (PET) plastic has been extensively used in our social life, but its poor biodegradability has led to serious environmental pollution and aroused worldwide concern. Up to now, various strategies have been proposed to address the issue, yet such strategies remain seriously impeded by many obstacles. Herein, waste PET plastic was selectively carbonized into three-dimensional (3D) porous carbon nanosheets (PCS) with high yield of 36.4 wt%, to be further hybridized with MnO2nanoflakes to form PCS-MnO2composites. Due to the introduction of an appropriate amount of MnO2nanoflakes, the resulting PCS-MnO2composite exhibited a specific capacitance of 210.5 F g−1as well as a high areal capacitance of 0.33 F m−2. Furthermore, the PCS-MnO2composite also showed excellent cycle stability (90.1% capacitance retention over 5000 cycles under a current density of 10 A g−1). The present study paved an avenue for the highly efficient recycling of PET waste into high value-added products (PCSs) for electrochemical energy storage.Keywords:PET;waste plastic;carbonization;energy storage
研究领域:
材料科学
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环境科学
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能源科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Polymers
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2019
·Vol. 11
·期 3
·526
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IF 3.164
Jiayun Chen,Xiaoying Xiong,Qilong Zhang,Lingling Shui,Shitao Shen,Hui Yang,Zhicai Zhu,Fang Zhang
P(VDF-TrFE) (vinylidene fluoride-co-trifluoroethylene)/PMMA (PVT/PMMA) blended films synthesized through a facile solution-blending method show outstanding performance for practical electrowetting and energy storage applications. The van der Waals forces and dipolar interactions in neighboring P(VDF-TrFE) and PMMA chains, together with the suppressed free volume (or defect) are critical to the significantly-enhanced electrical properties. Typical, Teflon-covered P(VDF-TrFE)/PMMA blended film exhibits a high dielectric constant of 13 with low dielectric loss (~0.05) at 100 Hz and a large initial contact angle of 122°. Its electrowetting response with a contact angle modulation of 50° in air and low contact angle hysteresis demonstrate that it is promising for low-voltage electrowetting applications. Furthermore, with an energy density of 11.8 J/cm3, approximately double that of pure P(VDF-TrFE), PVT/PMMA blended films containing 20 wt % PMMA turn out to be superior materials for energy storage applications, due to their significantly-enhanced polarization and reduced remnant polarization.Keywords:electrowetting;energy storage;dielectric constant;hydrophobicity
研究领域:
材料科学
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电气工程
✓ 已验证
DOI
PubMed
高影响因子
Energy Reports
·
2023
·
IF 5.2
Mayao Cheng,Linsheng Chen,Jiayi Guo
In view of the problems of nanomaterials in the field of energy storage and pollution removal, energy storage composite nanomaterials were proposed in the study, including Fe3O4 Fe3O4@C (MFC), Fe3O4@PANI, Fe3O4@C @PANI core–shell nanomaterials. The experimental design includes the preparation of electrode in energy storage, characterization of electrode materials, electrode cyclic voltammetry test, electrode charge discharge test, and the preparation of catalyst, catalyst characterization, and factors affecting the removal effect in the soil pollutant removal experiment. The preparation process of catalyst for pollution removal was given, including nano ferric oxide and Pd loaded composite. The energy storage performance analysis shows that the four Fe3O4 nanocomposites all contain Fe3O4, and the corresponding diffraction peaks appear at six positions of 30.2°, 35.5°, 43.1°, 53.8°, 57.3° and 62.9° respectively. The electrochemical test results show that Fe3O4 Fe3O4@C (MFC), Fe3O4@PANI, Fe3O4@C @PANI has high electrochemical performance basis and high capacitance. The removal effect analysis shows that the optimal value of the reaction rate constant is 2.1635, the optimal current value is 40 mA, and the optimal pH value is 3.0. The experimental results verify that the composite nano materials with FeCl3.6H2O as the iron source can be used as better capacitor materials and have excellent application prospects. At the same time, the pollution removal results show that Pd-Fe3O4 has incomparable advantages compared with other materials, and has high reliability and effectiveness.
研究领域:
材料科学
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环境科学
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电化学
✓ 已验证
DOI
高影响因子
CERAMICS INTERNATIONAL
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2024
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IF 5.1
Tiandong Zhang,Shimin Sun,Chao Yin,Xinle Zhang,Changhai Zhang,Yue Zhang,Yongquan Zhang,Qingguo Chi
SrTiO 3 paraelectric materials exhibit significant potential to be used as lead-free energy storage dielectrics due to their distinctive linear-like polarization behavior. Nonetheless, the application in advanced thin-film capacitors is challenging due to their low polarization strength and structural anomalies, which reduce the breakdown field strength and diminish the energy storage density. This study proposes a synergistic approach that integrates ion doping with the optimization of thermal treatment to enhance the energy storage capabilities of SrTiO 3 thin films. Initially, Mn 2+ doping in SrTiO 3 films mitigates oxygen vacancies and forms Mn 2+ -V O •• defect dipoles, thereby refining the polarization behavior and reducing the leakage current density. Subsequently, the crystalline degree of SrTi 0.99 Mn 0.01 O 3 thin films can be regulated by adjusting the annealing temperature. The optimal breakdown field strength of the resultant SrTi 0.99 Mn 0.01 O 3 films reaches 4681 kV/cm with a 1 mol% Mn 2+ doping level, enhancing the recoverable energy storage density ( W rec ) to 32.17 J/cm 3 . Furthermore, the recoverable energy storage density of SrTi 0.99 Mn 0.01 O 3 films escalates to 36.62 J/cm 3 with an efficiency of 80.28 %, upon reducing the annealing temperature to 625 °C. Moreover, SrTi 0.99 Mn 0.01 O 3 films demonstrate superior thermal stability, frequency stability, and electrical fatigue resistance, underscoring their potential as efficacious materials for film capacitor applications.
研究领域:
材料科学
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能量存储
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电介质材料
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薄膜技术
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2024
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IF 7.7
Jun Shi,Tao Huang,Ruoyu Wu,Jiani Wu,Yulong Li,Yongxi Kuang,Hongmei Xing,Wenli Zhang
Designing carbon materials with specific oxygen-containing functional groups is very attractive for the precise decoration of carbon electrode materials and the basic understanding of specific charge storage mechanisms, which contributes to the further development of high-performance carbon materials for energy storage and conversion applications. In this contribution, a hydroxyl-rich micropore-dominated porous carbon material was obtained by direct carbonization of cellulose. The content of oxygen atoms in hydroxyl form in the obtained carbon is nearly 6 at.%. With the pyrolysis temperature changed, the macroscopic morphology, the specific surface area, surface functional groups, and graphitization degree of the carbon materials were changed strongly. Besides, the carbon material obtained with a carbonization temperature of 900 °C (C9) showed enhanced specific capacitance in sulfuric acid, sodium hydroxide, and sodium sulfate aqueous electrolytes, which mainly originates from the contribution of pseudocapacitance. The pseudocapacitance mainly depends on the presence of surface hydroxyl functional groups. Besides, the pseudocapacitance value of C9 material in neutral electrolytes (151.34 F g −1 ) is about twice that in acidic (75.9 F g −1 ) and alkaline (75.78 F g −1 ) electrolytes.
研究领域:
材料科学
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能源工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Environmental Progress & Sustainable Energy
·
2016
·Vol. 35
·期 3
·840-846
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IF 1.631
Wei Shi
Nitrogen-doped coralline-like structure porous carbon (NC-PANI) was prepared through a simple urea-assisted pyrolysis of low-cost and environmental friendly polyaniline (PANI) nanofibers. The urea acts as nitrogen donor and activating agent in the PANI carbonization, to generate the porous carbon with high nitrogen content (10.08 wt %), high surface area (673.7 m 2 /g), and suitable pore size. In addition, the electrical conductivity of NC-PANI is better than that of pristine PANI. With such intrinsic characteristics, the as-prepared novel NC-PANI is highly desirable for energy storage and conversion applications. © 2016 American Institute of Chemical Engineers Environ Prog, 35: 840–846, 2016
研究领域:
材料科学
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环境工程
✓ 已验证
产品关联
DOI
高影响因子
RSC Advances
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2017
·Vol. 7
·期 19
·11244-11252
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IF 3.108
Hongwei Cao,Feixuanyu Qi,Ruowang Liu,Fengtao Wang,Caixia Zhang,Xiaoni Zhang,Yuye Chai,Lanlan Zhai
Hydrogen bonding was used to enhance the crystallinity and thus increase the phase change enthalpy of thermoplastic poly(ethylene glycol)-based polyurethane. With novel hydrogen bonding between two hard segments (NH⋯N) in N-methyldiethanolamine-extended polyurethane (NPU), the intensity of the NH⋯OC hydrogen bond between two hard segments increased, while that of the NH⋯O hydrogen bond between soft and hard segments decreased. The crystallinity and energy storage capability of NPU benefited from these and was thus enhanced. The phase change enthalpy was approximately 140 J g−1, which is very close to the highest value reported for cross-linked polyurethane. In addition, the crystallinity and crystallite perfection of NPU increased with the regular arrangement of soft segments and the microphase separation between soft and hard domains. The influence of the three different hydrogen bonds on the phase change enthalpy, crystallinity, crystallization morphology and microphase structure of the soft segment was discussed.
研究领域:
材料科学
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能源存储
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产品关联
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2020
·
IF 7.632
Cancan Wang,Zhenyong Wang,Yongyuan Ren,Xiao Hou,Feng Yan
Herein, we present a strategy for a switchable electrochromic zinc mirror/battery, which acts as a battery and a switchable electrochromic device via the electrodeposition and dissolution of Zn onto a transparent electrode. In this device, Zn and viologen constitute the anode and the cathode, respectively. Upon battery charging, Zn is electrodeposited onto the electrode to form a mirror while electric energy is stored as chemical energy. If the Zn mirror dissolves, the stored energy is released as electric energy. Compared with traditional electrochemical metallic mirrors, energy is sufficiently and sustainably utilized in this way. Also, a high reflectance of 84.9% and a specific capacity of 65.0 mAh g–1 are obtained for the Zn mirror, suggesting its excellent mirror performance and intrinsic energy storage properties. It is believed that this successful introduction of the battery concept to electrochemical metallic mirrors opens a wide avenue to drive its development toward a more imaginative and environmentally friendly future.
研究领域:
材料科学
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能源技术
✓ 已验证
产品关联
DOI
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2023
·
IF 4.2
Chengwen Gu,Fanchen Sun,Qitong Wang,Jiahui Li,Yi Zhao,Yunhe Zhang,Shouhai Zhang,Xigao Jian,Zhihuan Weng
Poly(aryl ether) (PAE) dielectrics have captured widespread interest in the domain of film capacitors primarily due to their exceptional high-temperature endurance, advantageous film-forming capabilities, and superior mechanical attributes. However, the conventional PAEs had a complicated film-forming process and low discharge energy density. In order to solve this problem, a poly(phthalazinone ether sulfone) (PPES) with phthalazinone structures is synthesized. Compared to the commercial polysulfone, the PPES exhibits significantly higher discharge energy density (Ue) and breakdown strength both at room temperature and elevated temperature. In particular, the Ue value of PPES (3.66 J/cm3) at 150 °C and 500 MV/m is even superior to that of commercially available bi-oriented polypropylene dielectric films, which are only 2.71 J/cm3 at room temperature and 450 MV/m. This investigation has demonstrated that the PPES films with phthalazinone structures are highly promising for energy storage under harsh conditions.
研究领域:
材料科学
·
能源工程
✓ 已验证
产品关联
DOI
高影响因子
Nature Communications
·
2022
·Vol. 13
·期 1
·1-7
·
IF 17.694
Xu Haojie,Guo Wuqian,Ma Yu,Liu Yi,Hu Xinxin,Hua Lina,Han Shiguo,Liu Xitao,Luo Junhua,Sun Zhihua
Metal-free antiferroelectric materials are holding a promise for energy storage application, owing to their unique merits of wearability, environmental friendliness, and structure tunability. Despite receiving great interests, metal-free antiferroelectrics are quite limited and it is a challenge to acquire new soft antiferroelectric candidates. Here, we have successfully exploited binary CMBr x I 1- x and CMBr x Cl 1- x solid solution as single crystals (0 ≤ x ≤ 1, where CM is cyclohexylmethylammonium). A molecule-level modification can effectively enhance Curie temperature. Emphatically, the binary CM-chloride salt shows the highest antiferroelectric-to-paraelectric Curie temperature of ~453 K among the known molecular antiferroelectrics. Its characteristic double electrical hysteresis loops provide a large electric polarization up to ~11.4 μC/cm 2 , which endows notable energy storage behaviors. To our best knowledge, this work provides an effective solid-solution methodology to the targeted design of new metal-free antiferroelectric candidates toward biocompatible energy storage devices.
研究领域:
材料科学
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能量存储
·
电化学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）