CERAMICS INTERNATIONAL
·
2022
·
IF 5.532
Hongrui Jia,Jiahao Mi,Zhen Li,Linghang Wang
Sm-doped Pb(Mg 1/3 Nb 2/3 )-PbTiO 3 (PMN-PT) binary ferroelectric ceramics has received extensive attention due to the excellent dielectric and piezoelectric properties . However, its Curie temperature ( T c ) is greatly reduced by Sm doping and T c is only 89 °C at the optimum piezoelectric coefficient. In this work, Sm-doped Pb(Mg 1/3 Nb 2/3 )O 3 –Pb(Zn 1/3 Nb 2/3 )-PbTiO 3 (Sm: PMN-PZN-PT) ternary ferroelectric ceramics near MPB were successfully manufactured and the crystal structure, microstructure and electric properties were investigated with respect to Sm doping content. A high piezoelectric coefficient of 870 pC/N and a high T c of 146 °C were achieved simultaneously in PMN-PZN-PT ternary ceramics with 1% Sm doping content. In addition, the room temperature dielectric constant was greatly improved by Sm doping and the P r , P s and E c values gradually decrease with the increase of Sm content. These results indicate that Sm-doped PMN-PZN-PT ceramics may be an attractive material for high performance piezoelectric device applications.
研究领域:
材料科学
·
物理学
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DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 3
·122557
·
IF 7.5
Xiaomeng Li,Yaning Ma,Ruimeng Li,Yan Ge,Jiapeng Tang
The integration of multifunctional protective materials capable of simultaneous defense against ultraviolet (UV) radiation, O 3 , and reactive oxygen species (ROS) remains a challenge in interfacial materials science, primarily due to difficulties in constructing stable and catalytically efficient interfaces on flexible substrates. Herein, we report a cellulose-guided interfacial engineering strategy for the in-situ growth of copper-based metal-organic framework (Cu-MOF) nanozymes on nylon/spandex fabric. The key to this strategy lies in the pre-coordination of Cu 2 + with the hydroxyl groups of cellulose, which molecularly guides the ordered crystallization of Cu-MOFs within a regenerated cellulose network at the fiber interface, yielding a nanosheet structure with enhanced density and accessibility of catalytic sites. The resulting cellulose-MOF hybrid is firmly anchored to the fabric through a synergistic dual mechanism: physical entrapment within the regenerated porous cellulose network provides structural integrity, while chemical coordination between Cu 2+ and cellulose hydroxyls directs oriented growth and reinforces interfacial adhesion. This precisely engineered interface enables exceptional cascade antioxidant activity (mimicking superoxide dismutase and catalase), high UV protection (UPF > 100), and rapid ozone decomposition (first-order kinetic constant k > 0.478 min −1 ). The material also demonstrates robust interfacial adhesion, ensuring mechanical durability, breathability, and wash durability (>30 cycles). Biocompatibility was confirmed by skin irritation tests. This work highlights the critical role of biomass-templated interfacial microstructure in regulating catalytic performance and provides a green, scalable paradigm for designing advanced functional interfaces for environmental and biomedical protection.
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高影响因子
ENERGY & FUELS
·
2026
·
IF 6
Xianzhen Cai,Yifan Si,Zhiyi Lin,Bingxue Zhang,Tengfei Zhang,Chong Tang,Chen Li,Xinhui Xia,Yongqi Zhang
O3-type NaNi1/3Fe1/3Mn1/3O2 (NFM) is a promising cathode material for sodium-ion batteries, yet its practical application is hindered by interfacial instability during cycling and rapid surface degradation upon air exposure. These drawbacks stem from the high surface reactivity of the exposed lattice, which induces persistent parasitic reactions, excessive cathode-electrolyte interphase (CEI) formation, and sluggish Na+ transport. In this study, a low-temperature plasma-enhanced chemical vapor deposition strategy is employed to construct a NaF/C artificial CEI on NFM without altering the bulk structure. This approach achieves simultaneous surface chemical passivation and interfacial kinetic regulation. The NaF-rich phase stabilizes the CEI and facilitates Na+ migration, while the incorporated carbon ensures continuous electron conduction, collectively reducing polarization and accelerating Na+ diffusion. As a result, the modified NFM@NaF/C cathode delivers a capacity retention of 85.2% after 100 cycles at 1 C. Moreover, it retains 80% of its initial capacity even after 7 days of air exposure, demonstrating significantly enhanced structural and air stability.
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产品关联
DOI
高影响因子
Journal of Energy Chemistry
·
2025
·
IF 14.9
Peng Yu,Nini Liu,Yizhong Gou,Daomin Qin,Wen Zhang,Lihua Feng,Yameng Fan,Yu Wang,Changhong Wang,Jiantao Han,Yunhui Huang,Jian Peng,Chun Fang
Sodium layered oxides stand out as one of the most promising cathodes for sodium-ion batteries due to their high energy density, elemental abundance, and scalability. However, their practical applications are restricted by interplanar gliding, cation migration, and the formation of intragranular microcracks, which collectively lead to rapid structural degradation and capacity loss. Herein, we rationally design an ultrastable O3-type Na 0.94 Ca 0.03 Ni 1/3 Fe 1/3 Mn 1/3 O 2 cathode, in which Ca 2+ cations act as pillars within the NaO 2 slabs, suppressing the irreversible phase transitions and Na/TM cation migration commonly observed in layered oxides. Multiscale in situ and ex situ techniques, combined with post-mortem analysis, reveal that the Ca-pillared pinning effect not only effectively suppresses the interplanar gliding and stress accumulation within the crystal phase but also restrains Na/TM cation migration and surface reconstruction in near-surface regions. Benefiting from the combined effects of structural stabilization, the Ca-pillared cathode exhibits a superior cycling stability, retaining 81.6% of its capacity after 1000 cycles at 2 C within the voltage range of 2.0–4.0 V, along with significantly enhanced wide-temperature (−40–80 °C) performance. This work highlights another critical role of Ca pillars in suppressing cation migration and surface structural degradation beyond preventing adverse interplanar gliding, offering valuable insights for designing long-life and wide-temperature layered oxide cathodes.
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DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2020
·
IF 6.182
Haowei Lu,Jiaqi Lin,Haiwu Zheng
The ferroelectric properties and fatigue resistance of 47(Ba 0.7 Ca 0.3 )TiO 3 –53Ba(Zr 0.2 Ti 0.8 )O 3 (BCZT) film can be enhanced by Tb modified and adding SrTiO 3 (STO) buffer layer using pulsed laser deposition(PLD) method. The 0.4 mol% Tb doped BCZT/STO(0.4Tb-BCZT/STO) film possesses optimal comprehensive electrical properties. Comparing with traditional BCZT film gown on Pt, the residual polarization( P r ), piezoelectric coefficient( d 33 *), permittivity( ε r ) of 0.4Tb-BCZT/STO film increase from 3.6 to 9.0 μC/cm 2 , 52 to 75 pm/V, 880 to 1210 and loss(tanθ) decrease from 0.028 to 0.017(10 4 Hz), respectively. During a high electric field, the degradation of P r is only 5.8% and the increase of E c is about 6.1% in 0.4Tb-BCZT/STO film after 10 9 switching cycles, which show the excellent fatigue resistance. The improved polarization and fatigue performances of film benefits from the reduced pinning influence with lower defect concentration based on a series of experiments and theoretical simulation. This work demonstrates the potential candidates of lead-free nonvolatile memory micro-devices applied in microelectronic industry.
研究领域:
材料科学
·
电子工程
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DOI
高影响因子
ENVIRONMENTAL POLLUTION
·
2019
·
IF 5.714
Tingting Zhang,Wangjin Yang,Chong Han,He Yang,Xiangxin Xue
Syringic acid , which is a typical methoxyphenol emitted from wood combustion, can provide heterogeneous reaction sites for gaseous active components, influencing the concentrations of trace gases and the compositions of syringic acid. The heterogeneous uptake of O 3 on syringic acid was investigated using a flow tube reactor under ambient pressure. The initial uptake coefficient ( γ i ) and the steady-state uptake coefficient ( γ ss ) of O 3 linearly increased with syringic acid mass (0–0.16 μg cm −2 ) and temperature (278–328 K), while they decreased with increasing the O 3 concentration and the O 2 content. The γ i was independent of relative humidity (20%–70%), whereas γ ss decreased with relative humidity (7%–70%). The compositional changes of syringic acid by the ozonization were analyzed by the Fourier transform infrared spectrometer (FT-IR) and the gas chromatography-mass spectrometry (GC-MS), confirming the generation of 2,6-dimethoxy-1,4-benzoquinone. In addition, compared to that of fresh syringic acid, the mass absorption efficiency of syringic acid aged by O 3 exhibited an increase in the range of 290–320 nm.
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高影响因子
CERAMICS INTERNATIONAL
·
2023
·
IF 5.2
Jiadong Hou,Yufeng Liu,Chufei Cheng,Fuhao Cheng,Teng Su,Chao Ma,Yang Miao,Xiaomin Wang
High entropy materials offer optimal conditions for regulating and modifying new material properties due to their vast composition space. Through traditional solid phase sintering , this article successfully synthesized a series of Sr(Ti 0.2 Zr 0.2 Y 0.2 Sn 0.2 Hf 0.2 Sc 0.2x )O 3-σ high entropy perovskite oxides with varying Sc 3+ doping concentrations and comprehensively investigated the microstructure morphology, crystal structure, and electrical conductivity of Sc-doped HEPs as well as their influence on oxygen transfer rate. The results demonstrate the successful incorporation of Sc 3+ into the high entropy lattice, resulting in a transformation of the crystal to a positively cubic structure with enhanced reciprocity. While the lattice vibration of BO 6 octahedron is weakened by the introduction of Sc 3+ , it has no impact on the phase stability of the crystal structure. Moreover, The results of the electrochemical impedance spectroscopy test demonstrate that at a temperature of 750 °C, with a doping amount of Sc 3+ at 0.14, the conductivity (σ) of Sc 3+ is measured to be 5.74 × 10 −3 S/cm, exhibiting an increase of 61.7% compared to non-doped samples. Correspondingly, the activation energy (Ea) is reduced from 0.51 eV to 0.39 eV as well. This doping strategy effectively expands the potential applications of high entropy perovskite oxides in solid oxide fuel cells (SOFCs). These findings serve as a driving force for further investigation into high entropy ceramics of the strontium series that exhibit optimal properties.
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DOI
高影响因子
JOURNAL OF LUMINESCENCE
·
2021
·
IF 3.599
Weiping Zhou,Chenyu Ma,Chunlin Ma,Zhangyin Zhai,Weishi Tan
A series of Sm 3+ doped 0.92(Na 0.5 Bi 0.5 )TiO 3 -0.08(Ba 0.90 Ca 0.10 )(Ti 0.92 Sn 0.08 )O 3 (NBT-8BCTS: x Sm 3+ , x = 0–0.025) lead-free piezoelectric ceramics are fabricated via a conventional solid-state reaction method, and their phase structure, photoluminescence properties and temperature dependent of luminescence spectra are studied in detail. The emission spectra with dominant orange-red emission consist of four emission peaks at 542 nm, 598 nm, 644 nm and 709 nm, which are ascribed to the 4 G 5/2 → 6 H J/2 (J = 5, 7, 9, 11) transition of Sm 3+ ions, respectively. Furthermore, the optical temperature sensing properties of the NBT-8BCTS: 0.01Sm 3+ ceramic in the temperature range between 313 K and 533 K are analyzed with a maximum relative sensitivity 1.29%K −1 at T = 463 K. Besides, the phosphors exhibit excellent stable temperature sensing performance under repeated heat-cooling cycles. These results suggest that the Sm 3+ doped NBT-8BCTS ceramics may have potential applications in multifunctional sensing devices by integrating its optical temperature sensing and intrinsic ferroelectric property .
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DOI
高影响因子
CERAMICS INTERNATIONAL
·
2025
·
IF 5.6
Chang Liu,Yuhao Kong,Jianhong Zhang,Chongguang Lyu,Huifang Ma
Dielectric capacitors with high power density, cost-effectiveness, and harsh environmental working abilities have gained considerable research attention. Dielectric materials are key components of dielectric capacitors and directly influence their operational performance. Among others, high-entropy perovskites are emerging as attractive candidates for energy storage materials owing to their exceptional performance driven by the high-entropy effect. Here, a high-entropy (1- x )(Bi 0.4 Na 0.2 K 0.2 Ba 0.2 )TiO 3 - x Bi(Zn 2/3 Ta 1/3 )O 3 system for energy storage devices was designed. A systematic study was conducted to investigate the ferroelectric and dielectric properties of BNKBT-BZT high-entropy ceramics (HECs). The resultant sample exhibits strong relaxor properties and exceptional energy storage properties, with a high recoverable energy storage density ( W rec ) of 4.11 J/cm³ and an energy storage efficiency ( η ) of 84 % under an electric field of 260 kV/cm. More interestingly, the BNKBT-15BZT HECs also display outstanding thermal and frequency stability. These findings suggest that the resultant BNKBT-15BZT HECs are highly promising for applications in dielectric energy storage within low-to-moderate electric field ranges.
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DOI
高影响因子
JOURNAL OF POWER SOURCES
·
2024
·
IF 8.1
Yang Yang,Honghao Deng,Liying Liu,Jiahong Pan,Ping Chen,Zhicong Shi
O3-type Cu/Fe/Mn-based layered oxides are regarded as promising cathode materials for sodium-ion batteries due to the abundance of elements in the Earth's crust and the imperative for large-scale energy storage. However, these materials still encounter some challenges, including low capacity and insufficient rate performance. In this study, Al-doped, cobalt-free, and nickel-free Na 0.9 Cu 0.18 Fe 0.3 Mn 0.52-x Al x O 2 (x = 0, 0.03, 0.05, 0.08) are successfully synthesized by using the solid-state method to introduce non-electrochemically active elements to stabilize the crystal structure and enhance the electrochemical performance. The impact of Al-doping is comprehensively analyzed by using X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), galvanostatic intermittent titration technique (GITT), and electrochemical impedance spectroscopy (EIS). Al-doping effectively enhances the diffusion coefficient of Na + , reduces the Jahn-Teller effect caused by Mn 3+ and mitigates the transition from O3 to P3 phase. Finally, it stops the partial phase transitions from O3 to P3, which can be found in pristine oxide without Al-doping during charge-discharge cycling. Notably, the Na 0.9 Cu 0.18 Fe 0.3 Mn 0.47 Al 0.05 O 2 electrode exhibits a reversible capacity of 123.89 mAh g −1 at 0.1 C, a capacity retention rate of 91.1 % after 200 cycles at 1 C, and a discharge capacity of 66.36 mAh g −1 at a high rate of 5 C.
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产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2024
·
IF 18.5
Ningyun Hong,Jianwei Li,Haoji Wang,Xinyu Hu,Bin Zhao,Fang Hua,Yu Mei,Jiangnan Huang,Baichao Zhang,WeiShun Jian,Jinqiang Gao,Yuan Tian,Xixi Shi,Wentao Deng,Guoqiang Zou,Hongshuai Hou,Zhanggui Hu,Zhen Long,Xiaobo Ji
Rapid capacity fading and structural collapse, along with other deep-rooted challenges in the high-voltage region, are insufficient to meet the requirements for commercial applications of O3-type layered cathodes. Hereby, rare earth metal (RE) within the IIIB group are utilized as the robust dopants for O3-NaNi 1/3 Fe 1/3 Mn 1/3 O 2 (NFM) to achieve the purpose of reconstructing the crystal lattice and regulating the interlayer structure. The inactive RE 3+ acts as a pillar, reinforces the TMO 6 octahedron, and broadens the Na + diffusion layer in the configuration of O-Na-O-TM (RE)-O-Na-O, giving rise to the enhanced crystal stability and accelerating the transmission of sodium ions. More impressively, the scandium incorporation is working as a “vitamin” that improves Ni/Fe redox reversibility, alleviating the irreversible P3-O3’-P3’ phase transformation and further restraining the disordered Fe migration into the neighboring Na layer, which is firmly validated by in situ X-ray diffraction coupled with the synchrotron X-ray absorption spectroscopy. Consequently, the as-designed NFM-Sc exhibits impressive rate capability (82.5 mAh g −1 at 10 C) and excellent cycle stability with 80.2% capacity retention after 500 cycles at the high voltage of 4.2 V. Given this, the elaborate work may shed new insight into the operational mechanism of rare metal through strategically regulating the structure for sodium-ion batteries.
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DOI
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2020
·
IF 9.038
Weirui Chen,Jinxin Xie,Xukai Li,Laisheng Li
The low efficiency of peroxone (O 3 /H 2 O 2 ) at acidic and neutral pH restrained its application in water purification . To overcome this shortcoming, CeO X @SiO 2 with large surface area, abundant surface oxygen vacancies (V o ), Lewis sites (L sites) and high Ce(III)/Ce(IV) ratio were synthesized to change the traditional electron transfer pathway between O 3 and H 2 O 2 . V o was facile in absorbing H 2 O 2 to form V o -H 2 O 2 and L sites were capable of absorbing O 3 to form L-O 3 . The electron at V o could be donated to V o -H 2 O 2 and generate V o -HO 2 − , which then effectively triggered the decomposition of L-O 3 at CeO X @SiO 2 ’s interface and O 3 in bulk solution. The electron transfer at the solid-liquid interface with the help of Ce 3+ /Ce 4+ redox cycle and V o was pH independent and different from the traditional electron transfer of peroxone reaction. Nitrobenzene (NB) mineralization was promoted to 92.5% in CeO X @SiO 2 -peroxone, but only 63.8% TOC was removed in tradition peroxone process. Moreover, CeO X @SiO 2 -peroxone had a wide pH application range. NB’s degradation in CeO X @SiO 2 -peroxone process followed the co-oxidation mechanism of superoxide free (•O 2 − ) and hydroxyl radical (•OH). The finding of this study could broaden the popularization of peroxone in water treatment and provided a strategy for catalyst design.
研究领域:
环境科学
·
催化化学
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DOI
高影响因子
危险品化学品经营许可证（带存储）