JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
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2024
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IF 5.8
Sen Peng,Lei Xiao,Yingxiang Li,Lianwen Deng,Jiahui Zhu,Zhenjun Qing,Yecheng Xi
A novel Ba 3 (ZnB 5 O 10 )PO 4 (BZBPO) phosphate ceramic was synthesised using a conventional solid-state technology. The BZBPO ceramic sintered at 850 °C demonstrated exceptional microwave dielectric properties : ε r = 5.88 ± 0.08, Q×f = 52,896 ± 1200 GHz ( f 0 = 16.5 GHz) and τ f = 0.34 ± 0.25 ppm/°C. Raman spectroscopy revealed that ε r and Q×f were negatively correlated with the Raman shift and full width at half maximum of the BZBPO ceramic, respectively. Meanwhile, Phillips–Vechten–Levine theory revealed that Q×f was highly correlated with the lattice energy ( U b ), and τ f was closely related to the bond energy ( E b ) and the thermal expansion coefficient. Among contribution ratios of individual chemical bonds, the B–O bond mainly contributed to U b , E b and ionicity, proving that the bond dominantly affected the dielectric properties of the BZBPO ceramic. Finally, the BZBPO ceramic was co-fired with silver, demonstrating its potential applicability towards low temperature co-fired ceramic technology.
研究领域:
材料科学
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电子工程
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DOI
高影响因子
International Journal of Applied Ceramic Technology
·
2022
·Vol. 19
·期 6
·3392-3402
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IF 2.328
Tong Shi,Fan Zhang,Wuyou Sun,Jinrui Li,Yu Bai,Chao Wang,Shiying Liu,Xin Wang,Yunhong Yang,Zhan jie Wang
In this study, 0.94Mg (1-3 x /2) Ce x TiO 3 −0.06(Ca 0.8 Sr 0.2 )TiO 3 (MCe x T−CST, 0≤ x ≤0.01) composite ceramics were prepared at a low temperature of 1175°C by using the 50-nm-sized powders. The effects of Ce 3+ doping on crystalline phase, microstructure, and microwave dielectric properties of MCe x T−CST were studied. A main ilmenite (Mg,Ce)TiO 3 phase and a minor perovskite (Ca 0.8 Sr 0.2 )TiO 3 phase coexist well with the appearance of impurity MgTi 2 O 5 phase in MCe x T−CST. The dielectric properties of MCe x T−CST are affected by the molecular polarizability, the impurity phase, and the Ce 3+ doping. The replacement of Mg 2+ by high valence Ce 3+ could effectively inhibit the formation of oxygen vacancy, resulting in the enhancement of Q×f . When x = 0.005, MCe x T−CST exhibits microwave dielectric properties with a moderate ε r of 21.5, a high Q×f of 67 000 GHz, and a near-zero τ f of −0.74 ppm/°C. The results reveal that the Ce 3+ substitution is a prospective approach to optimize the microwave dielectric properties of MgTiO 3 -based ceramics.
研究领域:
材料科学
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电子材料
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DOI
高影响因子
MICROCHEMICAL JOURNAL
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2025
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IF 5.1
Ying Jin,Xinwei Chen,Weiyan Wu,Huihui Ge,Li Zhang,Martin M.F. Choi,Wei Bian
The fluoride ion (F − ) is a vital trace element required by biological systems to maintain normal physiological functions, playing a crucial role in development and bone metabolism. However, excessive accumulation of F − can result in fluorosis, arthritis, and other adverse health effects. Critical development of precisely discerning fluoride ion detection systems is imperative. In this work, a zirconium-based metal-organic framework (Zr-MOF) was synthesized via a green hydrothermal process using zirconium chloride and tetrafluoro terephthalic acid (TFTPA) as precursors. The obtained Zr-MOF was combined with curcumin (Cur) to create a fluorescent probe for F − recognition. This probe exhibits superior anti-interference ability and high selectivity, along with a notable sensitivity. The fluorescence intensity (FI) ratio of Cur@Zr-MOF shows a linear reduction with increasing F − concentration, spanning a range 0–40 μM, and achieves a detection limit as low as 0.03 μM. The blue fluorescence of Zr-MOF is significantly attenuated under 365 nm ultraviolet radiation (UV) in the presence of F − , resulting in a notable color change of Cur@Zr-MOF solutions within the 0–40 μM F − range. This phenomenon can be utilized for smartphone-assisted visual detection. The probe's practicality was confirmed via spiked water sample analysis in the 0–36 μM range, with recoveries of 96.8–101.8 %. The Cur@Zr-MOF proposed in this study provides a promising platform for the detection of F − , which is expected to be applied in environmental monitoring and public health.
研究领域:
分析化学
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材料科学
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环境科学
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生物化学
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纳米技术
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DOI
高影响因子
Ceramics-Switzerland
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2024
·Vol. 7
·期 1
·426-435
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IF 2.7
Yuan-Bin Chen,Yu Fan,Shiuan-Ho Chang,Shaobing Shen
In this study, we used solid-state synthesis to prepare Ba[(ZnxCo1−x)1/3(Nb0.5Ta0.5)2/3]O3microwave ceramics for mobile communications. Compared with Ba[Zn1/3(Nb0.5Ta0.5)2/3]O3, in the prepared materials, Co2+substitution with Zn2+improved the Q × f value and enabled densification and sintering at a lower temperature. We used X-ray diffraction (XRD) and scanning electron microscopy (SEM) to analyze the obtained microstructure. Ba[(ZnxCo1−x)1/3(Nb0.5Ta0.5)2/3]O3was found to have a 1:2 ordered hexagonal structure, and its Q × f value increased with the increase in sintering temperature. In this work, excellent microwave dielectric properties—τf= −0.7 ppm/°C, εr= 34.5, and Q × f = 110,000 GHz—were obtained by sintering Ba[(Zn0.3Co0.7)1/3(Nb0.5Ta0.5)2/3]O3at 1400 °C for 5 h.
研究领域:
材料科学
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电子工程
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DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2025
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IF 9.7
Lianlong Zhan,Wei Lu,Qin Xiang,Zhiping Chen,Wenlu Luo,Cailin Xu,Renting Huang,Shuagnfei Wang,Hui He
Using biomass for the production of low-energy regenerative carbon capture materials represents an effective strategy to advance carbon dioxide capture and storage technologies. In this study, a low-energy regenerative bagasse-based CO 2 capture material is synthesized through a one-step, rapid crosslinking strategy. In this method, epichlorohydrin is used to crosslink bagasse with temperature sensitive Pluronic® F-127 and polyethyleneimine, thereby addressing the challenge of simultaneously incorporating multiple functional groups into the biomass matrix. The resulting material with abundant amino adsorption sites demonstrates a high adsorption capacity of 4.52 mmol/g. Interestingly, the temperature-sensitive response of the material facilitates the grafted amine chain segments on bagasse to stretch and shrink reversibly within a narrow temperature range of 25 °C for adsorption and 55 °C for desorption. The shrinkage state is conducive to the CO 2 desorption process, resulting in an ultralow regeneration temperature of 55 °C. Additionally, the water contained in the material enhances its cyclic stability in extreme environments, such as pure CO 2 atmosphere at high temperature. Overall, this research not only provides new ideas for enhancing the long-term stability and economic viability of CO 2 capture materials but also offers feasible solutions for combating climate change and promoting sustainable development.
研究领域:
材料科学
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环境科学
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生物质工程
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DOI
PubMed
高影响因子
Small
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2024
·
IF 13
Zhisong Geng,Yingqi Sun,Qing Zhang,Shao-Peng Shen,Liang Zhang,Jin-Chi Zheng,Yuan Luo,Yongzheng Shi,Zhe Chen
In response to the critical challenges of interfacial impedance and volumetric changes in Li (1+x) Al x Ti (2‑x) (PO 4 ) 3 (LATP)-based lithium metal batteries, an elastomeric lithium-conducting interlayer fabricates from fluorinated hydrogenated nitrile butadiene rubber (F-HNBR) matrix is introduced herein. Owing to the vulcanization, vapor-phase fluorination, and plasticization processes, the lithium-conducting interlayer exhibits a high elasticity of 423%, exceptional fatigue resistance (10 000 compression cycles), superior ionic conductivity of 6.3 × 10 −4 S cm −1 , and favorable lithiophilicity, rendering it an ideal buffer layer. By integrating the F-HNBR interlayer, the LATP-based lithium symmetric cells demonstrate an extended cycle life of up to 1600 h at 0.1 mA cm −2 and can also endure deep charge/discharge cycles (0.5 mAh cm −2 ) for the same duration. Furthermore, the corresponding lithium metal full cells achieve 500 cycles at 0.5 C with 98.3% capacity retention and enable a high-mass-loading cathode of 11.1 mg cm −2 to operate at room temperature.
研究领域:
材料科学
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电化学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
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2025
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IF 11.3
Pengtao Cai,Tong Chen,Mingxiu Zhan,Xiaojun Ma,Masaki Takaoka,Chen Sun,Xiaodong Li
Per- and polyfluoroalkyl substances (PFAS) are known for their strong C-F bonds, which make them highly persistent in the environment and resistant to degradation. Among PFAS, perfluorobutane sulfonate (PFBS), a short-chain PFSA widely used as a replacement for long-chain PFAS like perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS), has garnered attention due to its environmental persistence and toxicity. Although PFBS has lower bioaccumulation potential than its long-chain counterparts, it remains a significant pollutant with limited data available on its degradation mechanisms. To address this, the present study investigates PFBS degradation under subcritical water hydrothermal conditions. Various alkaline substances and additives were tested, and degradation products were analyzed by liquid and gas chromatography-mass spectrometry. Results show that 2 M NaOH at 325°C achieved an ∼99.4 % PFBS removal rate, and the degradation pathway began with the breakdown of the S-C bond, followed by C-F bond cleavage, resulting in the formation of smaller fluorinated compounds, including trifluoroacetic acid. Density functional theory (DFT) calculations provided detailed insights into the degradation mechanism, identifying hydroxide ion attack on the sulfonic acid group as the initial step and elucidating three distinct pathways for subsequent reactions. This study provides key insights into PFBS degradation mechanisms, emphasizing the synergistic effect of alkaline bases and additives. The findings support the optimization of subcritical hydrothermal treatment for PFAS removal, providing a scalable and environmentally sustainable solution.
研究领域:
环境科学
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化学工程
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理论计算
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DOI
PubMed
高影响因子
LANGMUIR
·
2020
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IF 3.557
Guohong Ren,Xichen Zhang,Zhicheng Zhang,Ying Liang,Shishan Wu,Jian Shen
Pt-based nanomaterials have been proven to be effective catalysts for direct alcohol fuel cells (DAFCs). Specifically, the ternary nanoalloys (NAs) composed of Pt with other noble metals and transition metals can not only reduce the component of Pt but also enhance the electrocatalytic property and durability for alcohol oxidation. Herein, ternary PdPtCu NAs were synthesized through the solvothermal method using ethylene glycol as the solvent and reducing agent. The morphology and composition of PdPtCu NAs can be effectively controlled via selecting suitable surfactants and adjusting the proportion of precursors. The three-dimensional (3D) PdPtCu NAs with spiny rambutan-like morphology were obtained using the triblock copolymer Pluronic F-127 (PF-127) as the surfactant and adding three precursors with an equal molar ratio. The unique structure of PdPtCu NAs and the synergistic effect between the components significantly improved the electrocatalytic activity toward ethanol oxidation. Compared with different atomic ratio binary or ternary nanomaterials, 3D PdPtCu NAs manifested the best electrocatalytic performance.
研究领域:
材料科学
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电化学
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纳米技术
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产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2023
·
IF 9.5
Chengliang Lin,Jiaxuan Yin,Shengrui Cui,Xiang Huang,Wei Liu,Yongcheng Jin
High-voltage spinel LiNi0.5Mn1.5O4 (LNMO), which has the advantages of high energy density, low cost, environmental friendliness, and being cobalt-free, is considered one of the most promising cathode materials for the next generation of power lithium-ion batteries. However, the side reaction at the interface between the LNMO cathode material and electrolyte usually causes a low specific capacity, poor rate, and poor cycling performance. In this work, we propose a facilitated method to build a well-tuned dual structure of LiF coating and F– doping LNMO cathode material via simple calcination of LNMO with LiF at low temperatures. The experimental results and DFT analysis demonstrated that the powerful interface protection due to the LiF coating and the higher lithium diffusion coefficient caused by F– doping effectively improved the electrochemical performance of LNMO. The optimized LNMO-1.3LiF cathode material presents a high discharge capacity of 140.3 mA h g–1 at 1 C and 118.7 mA h g–1 at 10 C. Furthermore, the capacity is retained at 75.4% after the 1000th cycle at 1 C. Our research provides a concrete guidance on how to effectively boost the electrochemical performance of LNMO cathode materials.
研究领域:
材料科学
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电化学
·
能源存储
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产品关联
DOI
PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2024
·
IF 8.1
Liqing Zhang,Bo Li,Yonggang Wei,Haoyuan Xu
Environmental problems caused by Cr(VI) need to be solved urgently. As a green and safe adsorbent, magnesium oxide has the characteristics of strong adsorption capacity and safety, non-toxic and harmless. In this study, high-performance Cr(VI) adsorption material (F-MgO) was prepared by combination hydrothermal modification of recycling MgO and doping of solid waste fly ash with the MgO that was a by-product of high magnesium laterite nickel ore. The adsorption properties of F MgO composites for Cr(VI) were evaluated, and the maximum adsorption capacity of Cr(VI) by F MgO reaches 172.6 mg/g at pH = 2.0. The F-MgO also showed high stability and excellent cycle adsorption performance. The adsorption mechanism was extensively studied by adsorption kinetics and DFT theoretical calculation, and electrostatic adsorption and chemical interaction between Cr(VI) and F MgO active sites were demonstrated. The prepared F MgO composites from waste resources with a simple synthetic method have great potential in the treatment of chrome-containing wastewater to achieve the purpose of treating waste with waste.
研究领域:
环境科学
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材料科学
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产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2022
·
IF 7.392
Minjing Chen,Wenyang Wang,Zhepu Shi,Zhaoping Liu,Cai Shen
Solid electrolyte interphase (SEI) grown on electrode surfaces during charge-discharge processes plays a key role in the cycle performance of lithium-ion batteries. In-situ study of cathode electrolyte interphase (CEI) is challenging due to the complicated interfacial reactions on the cathode materials including gas formation and the formation of thin CEI film. Herein, we applied the electrochemical atomic force microscope (EC-AFM) to study the interfacial changes in high energy density Li- and Mn-rich (LMR) materials with an F-rich electrolyte (1 M LiPF 6 FEC/FEMC/HFE). The study indicated that the electrolyte formed a uniform and dense passivation CEI film on the LMR material surface at high voltage. The CEI is composed of inorganic LiF substrate as confirmed by X-ray photoelectron spectroscopy (XPS). The assembled battery (LMR||Li) shows an excellent cycle performance and maintains capacity at 85.5% after 100 cycles, compared to the 13.7% retention rate of commercial carbonate electrolyte (1 M LiPF 6 EC/EMC/DMC).
研究领域:
材料科学
·
电化学
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Jianbo Li,Guijie Yin,Yannan Wang,Yang Xiang,Ning Yu,Xu Li,Yinzhu Jiang,Maowen Xu,Xuan Zhang
To meet high-standard requirements for next generation lithium-ion batteries (LIBs), reinforce the functions of separator are becoming imperative and urgent. In this work, we successfully fabricated a multifunctional separator, namely, UIO-66-F@PP, which enabled the test battery to achieve a significant improvement in electrochemical performance and safety. The modified separator UIO-66-F@PP can finely regulate the ion transfer by facilitating the Li + transport due to the orderly porous structure and the negatively charged functional group (−F), resulting in a higher ion conductivity ( σ ) of 0.91 mS cm −1 and a larger Li + transference number ( t Li + ) of 0.78. By analyzing the Sand’s time ( t sand ), it was found that the lithium dendrite was suppressed by the modified separator UIO-66-F@PP. Besides, the symmetric battery Li//Li assembled with UIO-66-F@PP exhibited a stable lithium plating/stripping cycle over 2000 h. The battery of LFP//Li with UIO-66-F@PP demonstrated an excellent rate performance with a discharging specific capacity of 114 mAh g −1 at 10C. Moreover, the burning and heat shrinkage tests showed that the modified separator UIO-66-F@PP has a self-extinguishing character and a high thermal stability even at 190 °C, indicating that the modified separator has the capability to endow the LIBs with high safety.
研究领域:
材料科学
·
能源技术
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）