Journal of Materials Chemistry A
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2019
·Vol. 7
·期 22
·13473-13482
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IF 10.733
Kailun Zou,Yu Dan,Yuxi Yu,Ying Zhang,Qingfeng Zhang,Yinmei Lu,Haitao Huang,Xin Zhang,Yunbin He
Dielectric nanocomposites composed of a polymer matrix with high electric breakdown strength and inorganic ferroelectric nanofillers with large maximum electric displacement (Dmax) have recently attracted much attention due to their high power density, superior flexibility, and good fatigue endurance. However, their discharge energy density and energy efficiency are limited because of the high remnant displacement (Dr) and small Dmax − Dr values of the ferroelectric fillers. Compared with ferroelectrics, antiferroelectrics exhibit much lower Dr (near zero) and far larger Dmax − Dr values, and thus if they are used as the fillers of the dielectric composite, a larger discharge energy density and higher energy efficiency may be obtained simultaneously. Based on this, in this work, Pb0.97La0.02(Zr0.50Sn0.45Ti0.05)O3 (PLZST) antiferroelectric nanoparticles (∼200 nm in diameter) coated with a dense and robust dopamine layer are prepared in order to develop dopamine-modified PLZST filler/poly(vinylidene fluoride-co-hexafluoropropylene) (P(VDF-HFP)) polymer nanocomposites with superior energy storage properties. The experimental results indicate that optimizing the filler content leads to a small Dr (0.61 μC cm−2), large Dmax − Dr value (6.14 μC cm−2), and high electric breakdown strength (3136 kV cm−1), as a result of which, the PLZST/P(VDF-HFP) nanocomposites filled with 5 wt% dopamine-modified PLZST nanoparticles simultaneously exhibit a large discharge energy density of 9.39 J cm−3 and high energy efficiency of 82%. These energy storage properties are superior to those of most ferroelectric filler (including nanowires and nanofibers prepared by complicated methods)/polymer nanocomposites with a single-layer structure. Our work not only proves that, antiferroelectric nanoparticles are excellent fillers that can be comparable to, or even better than, ferroelectric nanowires and nanofibers prepared by very complicated methods, for energy-storage inorganic/polymer dielectric composites, but also provides a convenient and effective way to prepare and design flexible dielectric capacitors with superior energy storage capacity.
研究领域:
材料科学
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纳米技术
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电气工程
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复合材料
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高影响因子
MICROCHEMICAL JOURNAL
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2023
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IF 4.8
Linghui Cao,Haoye Wang,Bowen Chen,Shixin Jiang,Zilong Su,Kaixuan Chen,Jiajun Wang,Aijuan Xie,Shiping Luo
Using metal–organic frameworks (MOFs) as the precursor and carbon spheres as the template, LaFe x Ni (1-x) O 3 (x = 1, 0.8, 0.6, 0.4, 0.2, 0) perovskite-type oxides were synthesized. The structure, morphology and valence state of as-prepared perovskite-type oxides were characterized by X-ray diffraction, scanning electron microscope, transmission electron microscopy, and X-ray photoelectron spectroscopy. Cyclic voltammetry and electrochemical impedance techniques were used to study the effect of Ni-doping ratios on the electrocatalytic performance of perovskite. The differential pulse voltammetry was used to measure the content of p-aminophenol (PAP) and paracetamol (PAT) through the LaFe 0.6 Ni 0.4 O 3 modified glassy carbon electrode. The experiment shows that among LaFe x Ni (1-x) O 3 (x = 1, 0.8, 0.6, 0.4, 0.2, 0) perovskite-type oxides, LaFe 0.6 Ni 0.4 O 3 was best electrode material due to its low charge transfer resistance and high electrochemical active surface area. The linear ranges of PAP and PAT were both 1.0–100.0 μM under optimized conditions, while the detection limits were 0.111 and 0.162 μM (S/N = 3), respectively. The practicality of the suggested sensor was explored through the simultaneous detection of PAP and PAT in real samples, and satisfactory findings in acetaminophen pills were obtained.
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CHEMICAL ENGINEERING JOURNAL
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2022
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IF 16.744
Guiwei Yan,Liqin Xu,Bijun Fang,Shuai Zhang,Xiaolong Lu,Xiangyong Zhao,Jianning Ding
A novel dual priority strategy of strengthening charge compensation in A-site of perovskite structure and widening bandgap width was designed to prepare (Ba 0.98- x Li 0.02 La x )(Mg 0.04 Ti 0.96 )O 3 (BLLMT x ) ceramics, which can solve the conflict between polarization and breakdown strength, and improve the pulse energy storage performance of the BaTiO 3 -based system. As a result, ultrahigh discharge energy density of 3.98 J/cm 3 and giant pulse power density of 321.6 MW/cm 3 with current density of 2786.4 A/cm 2 are obtained at 360 kV/cm for the (Ba 0.94 Li 0.02 La 0.04 )(Mg 0.04 Ti 0.96 )O 3 (BLLMT 0.04 ) ceramics with considerable fast discharge rate and outstanding temperature stability as well as cycle life, correlating with multi-ferroelectric phases coexistence, increasing bandgap width, strengthening charge compensation and establishing small size of the polar nano-regions (PNRs), which exceeds the great mass of reported lead-free ceramics. The comprehensive properties indicate that the BLLMT 0.04 ceramics present potential application in pulse energy storage system. The concept of composition design via increasing bandgap width and strengthening charge compensation provides a new idea for developing lead-free dielectric ceramic capacitors.
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Journal of Materiomics
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2023
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IF 9.4
Ying Zhang,Meng-Han Yan,Zhi-Fei Zhang,Hai-Rui Bai,Peng Li,Wei-Fang Han,Ji-Gong Hao,Wei Li,Yu-Chao Li,Chun-Ming Wang,Peng Fu
The increase in energy consumption and its collateral damage on the environment has encouraged the development of environment-friendly ceramic materials with good energy storage properties. In this work, (1– x )Na 0.5 Bi 0.5 TiO 3 - x Ca(Mg 1/3 Nb 2/3 )O 3 ceramics were synthesized by the solid-state reaction method. The 0.88Na 0.5 Bi 0.5 TiO 3 -0.12Ca(Mg 1/3 Nb 2/3 )O 3 ceramic exhibited a high recoverable energy storage density of 8.1 J/cm 3 and energy storage efficiency of 82.4% at 550 kV/cm. The introduction of Ca(Mg 1/3 Nb 2/3 )O 3 reduced the grain size and increased the band gap, thereby enhancing the breakdown field strength of the ceramic materials. The method also resulted in good temperature stability (20–140 °C), frequency stability (1–200 Hz), and fatigue stability over 10 6 cycles. In addition, an ultrahigh power density of 187 MW/cm 3 and a fast charge-discharge rate ( t 0.9 = 57.2 ns) can be obtained simultaneously. Finite element method analysis revealed that the decrease of grain size was beneficial to the increase of breakdown field strength. Therefore, the 0.88Na 0.5 Bi 0.5 TiO 3 -0.12Ca(Mg 1/3 Nb 2/3 )O 3 ceramics resulted in high energy storage properties with good stability and were promising environment-friendly materials for advanced pulsed power systems applications.
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Catalysis Science & Technology
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2018
·Vol. 8
·期 23
·6241-6251
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IF 5.365
Zhuang Guo,Linbi Zhou,Hongbin Cao,Yongbing Xie,Jiadong Xiao,Jin Yang,Yi Zhang
The electro-peroxone (E-P) process normally exhibits low efficiency in organic degradation in acid solution due to the limited rate constant of the reaction between O3 and H2O2 (peroxone reaction). In this paper, a C3N4–Mn/CNT composite material was synthetized and characterized with XRD, FTIR, SEM and XPS. With the function of the C3N4–Mn/CNT catalyst, the substrate oxalic acid (OA) was completely degraded in the E-P process within 30 min at pH 3, while only 15% degradation could be achieved after 60 min without the catalyst. The comparison of different reaction systems using the C3N4–Mn/CNT catalyst confirmed that the catalyst promoted the peroxone reaction, rather than the catalytic ozonation or electro-Fenton like reaction. Correlating the XRD and XPS analysis with the degradation data using the C3N4–Mn/CNT catalyst, we deduced that Mn coordinated with nitrogen was the active site for the peroxone reaction. Furthermore, the catalyst showed good chemical and catalytic stability in five cycles of the E-P process for OA degradation.
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APPLIED CATALYSIS B-ENVIRONMENTAL
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2024
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IF 20.2
Jianmin Chen,Tianjian Ji,Zuyi Lu,Yawei Xie,Zhaowei Jia,Liqin Zhou,Zhongfeng Shi,Zhenxia Zhao,Zhongxing Zhao
Herein, we report the rational design of Cu-MnCO 3 -Mn 3 O 4 /C by partially reduced CuMn/C-300 (300 represents the calcination temperature) for highly efficient mineralization of TC. Mechanism studies indicate that Cu-MnCO 3 -Mn 3 O 4 /C with abundant oxygen vacancies could be enhance the adsorption capacity of TC and O 3 as comparing with CuMn/C-300. Moreover, the degradation and mineralization rates of TC can be enhanced over Cu-MnCO 3 -Mn 3 O 4 /C due to the existence of synergetic catalysis between Cu, MnCO 3 , and Mn 3 O 4 . Combining catalytic ozonation with Fenton-like reaction (by-reaction) could enhance O 3 decomposition and •OH generation, facilitating the degradation and mineralization rates of TC. As expected, Cu-MnCO 3 -Mn 3 O 4 /C exhibits an excellent catalytic ozonation performance for degradation of TC with a k = 0.265 min −1 and almost 100 % of mineralization rate, outperforming to the most of non-noble-based catalysts ever reported. This work presents a combined reaction mechanism for catalytic ozonation to eliminate pollutant through a catalyst with heterogeneous interface in water purification.
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CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Zhijie Zhang,Yilin Zhou,Xiaodong Zhang,Jixian Ma,Miaoning Yao,Jie Sun,Tong He,Xuexia He,Zhibin Lei,Ruibin Jiang,Zong-huai Liu,Qi Li
Na-rich manganese-based layered oxide cathodes have presented potential applications in high energy–density sodium-ion batteries due to their cost-effectiveness and large theoretical specific capacity. However, the low kinetics of anionic redox reaction and lattice distortion caused by the Mn 3+ Jahn-teller effect greatly hindered the actual capacity, rate, and cycling performances of these cathodes. Herein, a Li + substitution induced O3/O′3 biphasic tailoring strategy has been proposed for constructing the Na-rich NaLi 0.2 Mn 0.8 O 2 (NLMO) cathode. Compared with conventional O′3-Na 1.2 Mn 0.8 O 2 (NMO) cathode, the O3/O′3-NLMO cathode enabled to provide an ultrahigh capacity of 233 mAh g −1 , superior capacity retention of 86 % after 50 cycles, and outstanding rate performance with the recorded-up capacity of 165 mAh g −1 at a high current density of 200 mA g −1 . In addition, NLMO also displayed rapid Na + -diffusion and more structural reversibility of O3/O′3-P3-O1-P3-O3/O′3 during the entire charging and discharging processes. The above excellent performances of NLMO cathode could be attributed to the well-designed O3/O′3 biphasic structure that provides the synergistic function of drastically enhancing reaction kinetics of anionic (O − /O 2– ) couple and efficiently alleviating multiphase transitions caused by Mn 4+ /Mn 3+ cationic couple. This unique finding of Li + substitution induced biphasic structure provides an insight for developing economical and high-performance Na-rich oxide cathodes.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2025
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IF 9
Tingting Lv,Minghui Du,Ruohan Wang,Hong Wang,Ding Li,Zhenyu Cui,Jianxin Li
The development of integrated treatment processes is essential for the effective removal of organic pollutants from soil leachate generated during the remediation of contaminated sites. The goal of this study is to develop an integrated process combining an electrochemical membrane reactor (ECMR) with O 3 and subsequent aerobic biological treatment for the treatment of leachate derived from persulfate-based advanced oxidation process (PS-AOP) remediation, where acetonitrile (ACN) was employed as a co-solvent. The results showed that the ECMR-O 3 system achieved 62.5 % chemical oxygen demand (COD) removal from leachate within 120 min (initial COD: 1116 ± 30 mg L –1 , conductivity: 21.36 ± 2.1 mS cm −1 ), under optimized conditions (operating voltage 2.5 V, permeate flux: 120 L m –2 h −1 , O 3 flow rate: 200 mL min −1 ). This performance significantly exceeded that of the individual ECMR (8.4 %) or O 3 system (26.6 %). The ECMR-O 3 effluent was then subjected to aerobic biological treatment, which further reduced COD and total nitrogen (TN) to 28.3 mg L –1 (97.5 % removal) and 58.3 mg L –1 (70.5 % removal), respectively. Simultaneously, the effluent NO 3 - -N concentration decreased to 47.9 mg L –1 . 16S rRNA high-throughput sequencing revealed a targeted enrichment of dominant bacterial genera (e.g., Hydrogenophaga sp., 22.62 %; Thauera sp., 29.87 %), indicating microbial community reorganization as an ecological optimization mechanism that enhanced nitrogen removal. Furthermore, a potential degradation pathway for ACN was proposed. In summary, this integrated approach provides an efficient and viable strategy for treating refractory organic pollutants in soil leachate derived from PS-AOP remediation.
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JOURNAL OF ALLOYS AND COMPOUNDS
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2025
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IF 6.3
Wei Cai,Zhiqiang Liu,Dakai Chen,Gang Chen,Jiali Tang,Rongli Gao,Zhenhua Wang,Xiaoling Deng,Chunlin Fu
NaNbO 3 ceramics, recognized as lead-free dielectric energy storage material, suffer from limited energy storage efficiency due to their substantial remnant polarization, which hinders their practical application. The design and engineering of relaxor ferroelectrics represent a promising strategy for substantially improving their comprehensive energy storage performance. In this study, (1- x )NaNbO 3 - x Bi(Mg 3/4 W 1/4 )O 3 (NN-BMW) relaxor ferroelectric ceramics were fabricated through a conventional solid-state sintering process. A systematic investigation was carried out to evaluate the microstructural characteristics, dielectric behavior, and energy storage performance of the NN-BMW ceramics. Among the ceramic samples, the 0.9NaNbO 3 -0.1Bi(Mg 3/4 W 1/4 )O 3 (0.9NN-0.1BMW) ceramic demonstrated the highest recoverable energy density of 2.03 J/cm 3 and the lower energy storage efficiency under an electric field of 290 kV/cm. To further enhance the energy storage performance of the 0.9NN-0.1BMW ceramic, a cold sintering technique combined with post-annealing was employed. By optimizing the post-annealing temperature, the 0.9NN-0.1BMW ceramic treated at 1000 °C exhibited significantly enhanced recoverable energy density of 2.59 J/cm 3 and energy storage efficiency of 76.5 %, surpassing the sample prepared by conventional sintering at 1150 °C. This work illustrates a low-energy, eco-friendly method of synthesizing NN-based relaxor ferroelectric ceramics with superior comprehensive energy storage performances.
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SCIENCE OF THE TOTAL ENVIRONMENT
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2022
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IF 10.753
Jie Wang,Haibao Liu,Yue Gao,Qinyan Yue,Baoyu Gao,Bo Liu,Kangying Guo,Xing Xu
Advanced oxidation processes (AOPs) such as ozonation and Fenton processes are widely used in the treatment of high-salt wastewater. The UV/O 3 pressurization process was designed and applied at the pilot-scale for treatment of actual high-salt textile wastewater. The UV/O 3 pressurization process achieved the highest decolorization (85 %) and chemical oxygen demand (COD Cr , 43.2 %) removal efficiency at an O 3 dosage of 200 g·t −1 and a pressure of 0.2 MPa. Compared to ordinary ozonation, the UV/O 3 pressurization process improved the solubility and gas-liquid mass transfer efficiency of O 3 in wastewater and generated a large number of O 3 microbubbles. Hydroxyl radical (·OH), superoxide radicals (O 2 · − ) and single oxygen ( 1 O 2 ) all played a significant role on the removal of pollutants in wastewater during the UV/O 3 pressurization process. The reverse osmosis (RO) process was used to evaluate the effect of UV/O 3 pressurization and Fenton pre-oxidation processes on the desalination process as the last process in treating high-salt organic wastewater. The pre-oxidation processes improved the initial RO water flux . Compared with the Fenton process, the UV/O 3 pressurization process had less membrane fouling (thin fouling layer vs thick fouling layer), and final water flux (59.4 LMH) was higher than that of Fenton process (34.9 LHM). The total dissolved solids (TDS), Cl − and SO 4 2− of the effluent from UV/O 3 pressurization process (37.2, 7.6 and 3.0 mg·L −1 ) were better than that of Fenton process (65.7, 13.9 and 7.1 mg·L −1 ). Therefore, the UV/O 3 pressurization process without secondary pollution is more suitable for the advanced treatment of high-salt organic wastewater than the Fenton process.
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PubMed
高影响因子
ACS Applied Materials & Interfaces
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2022
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IF 10.383
Jiajun Ma,Donghai Zhang,Fei Ying,Xiongjie Li,Ling Li,Shun Guo,Yu Huan,Ji Zhang,Jing Wang,Shan-Tao Zhang
Dielectric capacitors have attracted growing attention because of their important applications in advanced high power and/or pulsed power electronic devices. Nevertheless, the synergistic enhancement of recoverable energy storage density (Wrec > 10 J/cm3) and efficiency (η > 80%) is still a great challenge for lead-free dielectric bulk ceramics. Herein, by introducing complex perovskite compound (Bi0.9Na0.1)(Fe0.8Ti0.2)O3 with a smaller tolerance factor into an NaNbO3 matrix (NN-BNFT), we have achieved and explored stable relaxor antiferroelectric ceramics with enhanced relaxor behavior. Of particular importance is the composition of 0.88NN-0.12BNFT, which exhibits a large electric breakdown strength Eb of 87.3 kV/mm, an ultrahigh Wrec of 12.7 J/cm3, and a high efficiency η of 82.5%, as well as excellent thermal reliability and an ultrafast discharge speed, resulting from the dense microstructure, the moderate dielectric constant, the reduced grain size, the dielectric loss, and the sample thickness. The outstanding energy storage properties of NN-BNFT display great promise in advanced dielectric capacitors for energy storage applications.
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PubMed
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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2026
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IF 9.2
Dong-Chu Lu,Juan Xie,Yuan Gao,Cheng-Xin Li,Shan-Lin Zhang
The TEC of BFZYZ is lower to 13.8 × 10 −6 1/K, matching well with the electrolyte. • Y and Zn co-doping enhances hydration ability and surface oxygen vacancies. • BFZYZ yields an R p of 0.26 Ω cm 2 at 600 °C, 50% lower than that of BFZ. • PCFC with BFZYZ electrode achieved peak power density of 0.8 W/cm 2 at 600 °C. • The cell with BFZYZ electrode operates stably for 500 h. Developing active and durable oxygen electrodes for both oxygen reduction and oxygen evolution reactions at low temperatures remains a major challenge for proton ceramic electrochemical cells (PCECs). Herein, a cobalt-free Y and Zn co-doped Ba(Fe,Zr)O 3−δ perovskite (BFZYZ) is developed as a PCEC oxygen electrode, integrating excellent electrochemical performance and durability. At 600 °C, Y and Zn co-doping reduces the polarization resistance by 50%, mainly owing to enhanced hydration capability and surface oxygen exchange, which accelerate ORR/OER kinetics. Meanwhile, BFZYZ shows a lower average thermal expansion coefficient of 13.8 × 10 −6 1/K over 30–600 °C, improving its thermal compatibility with the electrolyte. The PCEC with BFZYZ electrode achieves a peak power density of 0.8 W/cm 2 in fuel cell mode and a current density of 0.82 A/cm 2 at 1.3 V in steam electrolysis mode at 600 °C, with stable operation, demonstrating the potential of BFZYZ for high-performance and durable PCECs.
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