Journal of Materials Chemistry B
·
2021
·Vol. 10
·期 14
·2617-2627
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IF 6.331
Qisheng Ye,Rui Wang,Saitao Yan,Baoliang Chen,Xiaoying Zhu
Inspired by the stomatal feature of plant leaves, a photo-responsive membrane was developed to enhance the removal of irreversible membrane fouling and to control molecule release. Photo-responsive polymers were prepared by reacting the amine group of 4-amineazobenzene with about 3, 5 and 9 out of 12 carboxylic groups of PMAA which was grafted from P(VDF-CTFE) with a certain length. Subsequently, high-flux photo-responsive membranes (PRMs) were prepared from the heterogeneous polymers with different contents of photo-switchable azobenzene following a non-solvent-induced phase-inversion protocol. The pore size and surface hydrophilicity of PRMs could be reversibly increased by switching visible light to UV irradiation, which dramatically enhanced the backflushing efficiency on PRMs under UV irradiation. The “light-cleaning” process could recover more than 90% of the irreversible flux decline caused by typical organic foulant (BSA) and biological foulant (E. coli) on PRMs. The higher the content of azobenzene, the more obvious the pore size and hydrophilicity variation after light switching but the smaller the absolute pore size observed for PRMs. On the other hand, the light-switching gates of PRMs enabled the controlled release of molecules with different sizes. The novel PRM provided an efficient solution to mitigate irreversible membrane fouling and a light-triggered molecule release protocol, which would improve the membrane performance and further expand the application field of the membrane.
研究领域:
材料科学
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化学工程
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环境科学
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生物技术
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产品关联
DOI
PubMed
高影响因子
Journal of Materials Chemistry A
·
2025
·Vol. 13
·期 47
·41354-41364
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IF 9.5
Shaoyan Zhang,Bing Xie,Haishan Xu,Jinqiao Yi,Kun Guo,Haibo Zhang,Tianyu Li
Polymer film capacitors are vital for power electronic systems due to their ultrafast charge–discharge capability, high power density, mechanical flexibility, and lightweight nature. However, achieving both high discharge energy density (Ud) and high energy-storage efficiency (η) in polymer dielectrics remains a major challenge due to the intrinsic trade-off between permittivity, electric polarization, and breakdown strength. In this study, we have designed bilayer heterogeneous nanocomposites (BHNs) that integrate a linear polyimide (PI) layer—offering low dielectric loss and high breakdown strength—with a ferroelectric P(VDF-CTFE) matrix embedded with dopamine-modified BaTiO3 nanowires (dopa@BT NWs), which imparts high polarization. By precisely tuning the thickness of each layer and the interfacial charge accumulation, we activate synergistic interfacial polarization and a breakdown hindrance effect. More importantly, we propose the concept of a “threshold concentration of interfacial space charge”, which governs the critical charge density required to maximize performance without triggering dielectric instability. As a result, the optimized BHNs (0.3 vol% dopa@BT NWs/P(VDF-CTFE)-PI, whose thicknesses are 4 µm and 8 µm, respectively) exhibit a significantly enhanced Ud of up to 11.1–14.1 J cm−3 and a high η of 72–86%, substantially surpassing conventional single-layer configurations. This work not only delivers promising candidates for advanced dielectric energy-storage applications but also introduces a physically grounded design model that offers guidance for next-generation high-performance polymer-based capacitors.
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产品关联
DOI
高影响因子
Journal of Materials Chemistry A
·
2017
·Vol. 5
·期 13
·6070-6078
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IF 8.867
Bing Xie,Haibo Zhang,Qi Zhang,Jiadong Zang,Chao Yang,Qingping Wang,Ming-Yu Li,Shenglin Jiang
In practical application, new dielectric capacitors with greater energy density at lower operating voltage will be promising candidates for high-performance electrical devices. Theoretically, it is possible to achieve large electric polarization at a low electric field via embedding aligned ferroelectric nanowires in a polymer matrix, which could release high energy density. However, in terms of practice, the design of nanocomposites with aligned nanowires poses a great technical challenge. Here, a new physical-assisted casting method was developed to tune the orientation of elongated BaTiO3 nanowires in a P(VDF-CTFE) matrix. In the Z-aligned nanocomposites, a large (Dmax − Pr) value of 9.93 μC cm−2 can be induced at a low electric field of 2400 kV cm−1 by aligning 3 vol% ferroelectric BaTiO3 nanowires in the poling direction. Compared with X–Y-aligned nanocomposites even at a high electric field of 3400 kV cm−1, the Z-aligned nanocomposites could exhibit simultaneously an enhanced energy density of 10.8 J cm−3 and a discharge efficiency of 61.4% at 2400 kV cm−1. To the best of our knowledge, among ferroelectric nanocomposites, this is the highest energy density ever obtained at such a low electric field. This work is of critical significance in making dielectric nanocomposites viable for energy storage devices in current electrical and electronic applications.
研究领域:
材料科学
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电气工程
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纳米技术
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DOI
高影响因子
CERAMICS INTERNATIONAL
·
2016
·
IF 2.758
Bing Xie,Qi Zhang,Haibo Zhang,Guangzu Zhang,Shiyong Qiu,Shenglin Jiang
Uniform morphology BaTiO 3 nanowires with high aspect ratio (>100) were synthesized via a novel stirring hydrothermal method . The BaTiO 3 /P(VDF-CTFE) nanocomposite films were prepared by a simple solution casting method using dopamine modified BaTiO 3 nanowires as nanofillers and ferroelectric polymer P(VDF-CTFE) as matrix. A maximum dielectric displacement of 9 μC/cm 2 under the electric field of 3000 kV/cm was achieved for the nanocomposites with 3 vol% BaTiO 3 nanowires. These nanocomposites with dopamine modified BaTiO 3 nanowires also exhibit an enhanced energy density of 8.4 J/cm 3 at a relative low electric field of 2700 kV/cm. This energy density is 55% higher than that of the pure P(VDF-CTFE) (−5.4 J/cm 3 at 3600 kV/cm). Such significant enhancement in dielectric displacement and energy density is attributed to the combined effects of both surface modification by dopamine and the high aspect ratio of the BaTiO 3 nanowires. Our study has a promising commercial potential in practical application in the automobile and aerospace field, which require greater energy density with a lower operating voltage.
研究领域:
材料科学
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能源存储
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高分子材料
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DOI
高影响因子
Journal of Energy Storage
·
2023
·
IF 9.4
Qiuying Zhao,Lu Yang,Yige Bie,Yuemin Du,Yizhou Ma,Jiatai Sun,Hongli Ji,Jinhao Qiu
The urgent demand of efficient power sources for microelectronics has stimulated the exploration of light-weight electrostatic capacitors with high energy density . With the distinctive characteristics of high dielectric constant and breakdown strength, Poly(vinylidene fluoride) (PVDF) based ferroelectric polymers have emerged as promising candidates for high-performance dielectric capacitors. However, the intrinsic high hysteresis loss of PVDF based polymers would largely weaken the discharge efficiency of capacitors, hindering their practical application. In this work, we demonstrate that through topological-structure design and proper doping composition modulation involving in MXene and boron nitride nanosheets (BNNS), considerable enhanced discharge efficiency and discharge energy density can be simultaneously achieved. For example, a 7 layered composite comprised of alternative BNNS reinforced layers and MXene reinforced layer presents an ultra-high discharge density and charge-discharge efficiency of 34.6 J/cm 3 and 62 %, respectively. It is anticipated that this work will open a new design paradigm to direct PVDF based ferroelectric polymers towards viable high-performance capacitors.
研究领域:
材料科学
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能源存储
·
电子工程
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产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Bing Xie,Tongtong Wang,Jinxia Cai,Qiuyu Zheng,Zhiyong Liu,Kun Guo,Pu Mao,Haibo Zhang,Shenglin Jiang
Polymer-based nanocomposites embedded high dielectric-constant (high- ε r ) ceramic fillers in high breakdown-strength (high- E b ) polymer matrix are extensively studied as the flexible dielectrics for high discharged-energy–density (high- U e ) film capacitors. Ferroelectric ceramics composition lying on the morphotropic phase boundary (MPB) show ultrahigh dielectric and polarization response, which as ceramic fillers, have great promise to enhance the U e of polymer/ceramic composites. Herein, high- ε r Pb(Zr 0.52 Ti 0.48 )O 3 (PZT) nanocubes (NCs) with MPB composition are prepared successfully via an improved hydrothermal reaction. Based on this, core–shell structured PZT@SiO 2 nanofillers are designed to reduce the uneven electric field distribution and leakage current in P(VDF-CTFE)-based nanocomposites for high E b . We demonstrate that the PZT@SiO 2 nanofillers with MPB composition can effectively resolve the paradox between ε r and E b . The prepared P(VDF-CTFE)/PZT@SiO 2 nanocomposites can display a high U e of 16.8 J/cm 3 at E b of 491 MV/m, which is substantially improved by 107% over the pristine P(VDF-CTFE). Plus, high discharging efficiency of 70% is also achieved. The superiority of the PZT@SiO 2 NCs with MPB in improving the capacitive energy density of film capacitors will be expected to provide a design paradigm for advanced polymer composites with high energy storage performance.
研究领域:
材料科学
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能量存储
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介电与绝缘材料
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纳米复合材料
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铁电材料
✓ 已验证
DOI
高影响因子
Nano Energy
·
2018
·
IF 13.12
Bing Xie,Qi Zhang,Ling Zhang,Yiwei Zhu,Xin Guo,Pengyuan Fan,Haibo Zhang
The development of advanced dielectric materials with high discharged energy densities is of critical significance for modern electric devices and electric power systems . In this report, linear/ferroelectric bilayer-heterostructured polymer nanocomposites with an ultrahigh discharged energy is presented for the first time. The linear polyimide (PI) is employed as bottom insulating layer to provide high breakdown strength ( E b ), while ferroelectric P(VDF-CTFE) with dispersed BaTiO 3 nanoparticles as the top layer, provides a high dielectric constant . This linear/ferroelectric bilayer dielectric material exhibits enhanced E b and ( D max - P r ) values, which can be attributed to the interfacial barrier and the interfacial polarization effect at the interface of two layers. Favorable distribution of the local electric field within this bilayer dielectric reveals the implication of the collaborative double interface effects on the energy storage performance of the nanocomposites. As a result, the bilayer-heterostructured nanocomposite displays an ultrahigh discharged energy density of 14.2 J/cm 3 at 370 MV/m. This energy density is among the highest under the equivalent electric field strength reported so far. This work not only provides a new design to optimize the performance of the dielectric nanocomposites for flexible energy storage applications , but also develops the understanding of the breakdown and polarization mechanism of dielectric materials.
研究领域:
材料科学
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电介质材料
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能源存储
·
纳米技术
·
聚合物科学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）