ADVANCED FUNCTIONAL MATERIALS
·
2023
·Vol. 33
·期 47
·2305829
·
IF 19
Yueteng Gao,Wei Li,Boning Ou,Shuhua Zhang,Huwei Wang,Junyang Hu,Feiyu Kang,Dengyun Zhai
Potassium ion batteries using graphite anode and high-voltage cathodes are considered to be optimizing candidates for large-scale energy storage. However, the lack of suitable electrolytes significantly hinders the development of high-voltage potassium ion batteries. Herein, a dilute (0.8 m ) fluorinated phosphate electrolyte is proposed, which exhibits extraordinary compatibility with both graphite anode and high-voltage cathodes. The phosphate solvent, tris(2,2,2-trifluoroethyl) phosphate (TFP), has weak solvating ability, which not only allows the formation of robust anion-derived solid electrolyte interphase on graphite anode but also effectively suppresses the corrosion of Al current collector at high voltage. Meanwhile, the high oxidative stability of fluorinated TFP solvent enables stable ultrahigh-voltage (4.95 V) cycling of a potassium vanadium fluorophosphate (KVPO 4 F) cathode. Using TFP-based electrolyte, the 4.9 V-class potassium ion full cell based on graphite anode and KVPO 4 F cathode shows rather remarkable cycling performance with a high capacity retention of 87.2% after 200 cycles. This study provides a route to develop dilute electrolytes for high-voltage potassium ion batteries, by utilizing solvents with both weak solvating ability and high oxidative stability.
研究领域:
材料科学
·
电化学
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产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2025
·
IF 5.6
Zezhen Yin,Yun Zhang,Shihua Ding,Tianxiu Song,Xiaoning Li,Jiaying Dan
The solid-phase method was utilized to synthesize LiAl 1- x Be x O 2- x /2 and LiAl 1- x Ga x O 2 ceramics. By Phillips-Van Vechten-Levine (P-V-L) theory, a strong correlation between chemical bond characteristics and microwave dielectric properties was established. X-ray diffraction (XRD) analysis confirmed that all components formed single-phase solid solution with tetragonal structure. Using Be 2+ and Ga 3+ as substitutes, the differences in ionic radii produced diametrically opposite changes in cell volume. The relative density increased to 97.61 % (98.57 %) with the addition of Be 2+ (Ga 3+ ). According to the P-V-L theory, the variation of ε r was influenced by bond ionization. The introduction of different ions caused bond lengths variations, which in turn affected the lattice energy fluctuations. Importantly, this change more than doubled Q×f from 16,268 GHz to 37,015 GHz. Furthermore, the evolution of τ f can be elucidated by the bond energy. Sintered at 1250 °C, both LiAl 0.96 Be 0.04 O 1.98 and LiAl 0.98 Ga 0.02 O 2 demonstrated outstanding microwave dielectric properties, characterized by ε r = 5.83–6.08, Q×f = 32,727∼37,015 GHz, and τ f = −134.8∼-112.4 ppm/°C.
研究领域:
材料科学
·
无机化学
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产品关联
DOI
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2020
·
IF 3.573
Wei Chen,Nengbing Long,Tonghu Xiao,Xing Yang
The conventional vapor-induced phase separation (VIPS) method for membrane fabrication faces practical challenges related to the long contact time to gaseous nonsolvent and complexity in pore structure control. This study reported a novel strategy to flexibly control the pore structure of poly(vinylidene fluoride) (PVDF) microfiltration membranes in VIPS utilizing a novel lower critical solution temperature (LCST) system, which was reported for the first time. The results showed that increasing the exposure temperature to humid air and exposure time or decreasing PVDF concentration and membrane thickness were favorable for forming a cellular-like pore structure with graded density while eliminating undesirable fingerlike pores. In particular, by tuning the vapor exposure temperature to above the LCST (i.e., 63 °C) of the selected dope composition under extremely short exposure time (40–80 s), the phase separation for membrane formation followed a combined VIPS and TIPS mechanism, namely, V-TIPS, resulting in a desirable cellular-like porous structure with high porosity (∼85%). The V-TIPS membrane t-80 (14 wt % PVDF and 80 s exposure to 80 °C humid air) exhibited superior mechanical robustness, e.g., tensile strength of 3 MPa. The filtration performance of t-80 with surfactant-stabilized oil-in-water emulsion under an ultralow pressure of 20 kPa showed an ultrahigh flux of 3028 L m–2 h–1 bar–1 and greater than 99% rejection of oil contaminants. The membrane permeability was 3-fold higher than that of the membrane produced below LCST, significantly improving the purification efficiency. Preliminary results showed that the t-80 exhibited resilience to flux decline in oily water separation with good flux recovery. This simple but novel and effective V-TIPS approach shows promise for large-scale continuous production of high-performance membranes for ultralow pressure or gravity-driven water purification.
研究领域:
材料科学
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环境工程
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化学工程
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产品关联
DOI
高影响因子
Advanced Science
·
2025
·
IF 14.1
Yu-Juan Zhan,Chun-Miao Deng,Lin Tang,Shu-Jun Li,Tao-Yang Xu,Xian Wei,Xin-Yi Zhang,Can-Can Zheng,Li Deng,Cui Shao,Zhong-Min Ouyang,Alfred King-Yin Lam,Rong Zhang,Jun Liu,Xing-Yuan Shi,Zhen-Yu Pan,Wei Dai,Ming-Liang He,Simon Law,Xu Li,Xiao-Bing Chen,Cheng Zhou,Bin Li,Wen-Wen Xu
N-acetyltransferase 10 (NAT10)-catalyzed N4-acetylcytidine (ac4C) modification has been reported to drive tumor metastasis. Lysosomal dysregulation plays an important role in human diseases, but its function in esophageal cancer metastasis is unclear. It remains unknown whether NAT10 regulates lysosomal function, and the underlying mechanism and treatment strategy warrants investigation. Here, a novel role of NAT10 in inducing lysosomal acidification is revealed, and the clinical and biological significance of ATP6V0E1 in tumor metastasis is uncovered. Mechanistically, NAT10 promotes the translation efficiency of ATPase H + transporting V0 subunit e1 (ATP6V0E1) mRNA in an ac4C-dependent manner to facilitate ATP6V0E1 expression and vacuolar H + -ATPase (v-ATPase) activity, enhancing the lysosomal degradation of E-cadherin, ultimately accelerating tumor metastasis. Furthermore, G-749 is screened and identified as a novel NAT10 inhibitor capable of effectively impeding lysosomal acidification and tumor metastasis by disrupting the NAT10-Ubiquitin-specific Peptidase 39 (USP39) interaction. Overall, the results unveil a novel role of ac4C modifications in regulating lysosomal acidification and propose a potential strategy by targeting NAT10 to inhibit esophageal cancer metastasis.
研究领域:
癌症生物学
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分子生物学
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生物化学
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细胞生物学
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肿瘤生物学
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RNA修饰
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药理学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
POLYMER DEGRADATION AND STABILITY
·
2024
·
IF 6.3
Liwen Zheng,Jing Zhan,Jiahui Wang,Zhirong Xu,Xiaowei Mu
In recent years, flame-retardant rigid polyurethane foam (RPUF) has once again captured the scholars’ attention due to the growing the growing demands in the field of building energy efficiency. However, the inherent flammability of RPUF is high and the complexities of its flame-retardant mechanisms remain inadequately understood. In this study, a modified biomass material, amino starch phosphate ester was successfully synthesized which was then combined with expandable graphite (EG) and incorporated into RPUF. The research delved into the optimal ratio and minimal flame-retardant additive required to achieve the stringent UL-94 V-0 rating, while also thoroughly investigating the flame retardancy and thermal properties of the composite system. The findings revealed that with just 6 wt.% of flame retardants, the RPUF achieved the UL-94 V-0 rating, with a 41.1 % reduction in peak heat release rate (pHRR) and a 23.7 % decrease in total heat release (THR). Additionally, it diminishes the flame's size and width, leading to quicker extinction, while also lowering the internal combustion temperature of the polyurethane, thereby delaying both preheating and combustion times. The synergistic interaction between amino starch phosphate ester and EG during combustion results in the formation of a dense, continuous char layer, effectively inhibiting the pyrolysis and combustion of RPUF. This study provides a theoretical foundation for the development of efficient flame-retardant systems for RPUF.
研究领域:
材料科学
·
防火安全工程
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产品关联
DOI
高影响因子
POLYMER DEGRADATION AND STABILITY
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2021
·
IF 5.03
Jiali Huang,Wenwen Guo,Xin Wang,Lei Song,Yuan Hu
Petroleum-based diglycidyl ether bisphenol A (DGEBA)-type epoxy is one of the most popular thermosetting materials currently, but it suffers from brittleness, flammability and non-renewability. In this study, an intrinsically flame retardant bio-based epoxy monomer (HECarCP) was synthesized from cardanol and cyclophosphazene. Subsequently, HECarCP was cured by 4,4’-diaminodiphenyl methane (DDM) to obtain a thermosetting material. Compared to the cured DGEBA/DDM thermoset, the cured HECarCP/DDM thermoset showed lower initial decomposition temperature; however, the earlier thermal decomposition caused by cyclophosphazene core contributed to char formation in return. As well, the HECarCP/DDM exhibited slightly lower tensile strength but much higher elongation at break than the DGEBA/DDM, overcoming the drawback of brittleness of the DGEBA/DDM. More importantly, the cyclophosphazene core provided intrinsic flame retardancy to the HECarCP/DDM thermoset, which displayed a relatively high LOI value of 33.0% and UL-94 V-0 classification. In cone calorimeter measurement, the peak heat release rate, total heat release and total smoke production of the HECarCP/DDM thermoset was declined by 63%, 24% and 72%, respectively, compared to those of the DGEBA/DDM, owing to the formation of a thermally stable and insulating char layer during combustion. This study paves the way for broadening applications of cardanol in fabrication of high-performance bio-based thermosetting polymers with excellent comprehensive properties.
研究领域:
材料科学
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化学工程
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高分子科学
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产品关联
DOI
高影响因子
Phytopathology Research
·
2019
·Vol. 1
·期 1
·1-10
·
IF 0
Fan Fei,Hahn Matthias,Li Guo-Qing,Lin Yang,Luo Chao-Xi
Benzimidazole fungicides (MBCs) have been widely used in agriculture since 1970s, and resistance to this class of fungicides in Botrytis cinerea is reported worldwide. Resistance to MBCs in B. cinerea is related to mutations in the target β-tubulin gene ( TUB2 ). Compared with the mutation at codon 200, the substitutions from glutamic acid to alanine (E198A), valine (E198V), or lysine (E198K) at codon 198 are currently the predominant mutations in MBC resistant populations of B. cinerea . In this study, a loop-mediated isothermal amplification (LAMP) method was established for rapid detection of benzimidazole resistance in B. cinerea. On the basis of the three mutations at TUB2 codon 198, three sets of LAMP primers were designed, and each of these primer sets was able to specifically amplify the DNA containing its corresponding mutation, while no amplification was detected with other mutated or the wild type DNA. After optimization, the sensitivity and specificity tests illustrated that this LAMP assay had good sensitivity and specificity to detect specific resistant genotypes in B. cinerea . Result also showed that the LAMP assay had good reproducibility. Above all, boiled mycelia could be used as templates, which simplified the process and increased the efficiency of the assay. Considering its rapidity, simplicity, and high efficiency, the LAMP assay developed in this study is a promising tool for the diagnosis of benzimidazole resistance in B. cinerea , and will contribute to the monitoring of resistance development to MBCs in the future.
研究领域:
植物病理学
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分子诊断
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真菌遗传学
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产品关联
DOI
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
·
2018
·
IF 3.974
Bin Li,Bowen Gu,Zhaoguang Yang,Ting Zhang
Arsenic contamination of water is a global concern due to its heavy threat to human health. In this study, the submerged macrophyte Vallisneria natans (Lour.) Hara was used to remove environmentally relevant concentrations of arsenic in the binary As(III)/As(V) system. The concentrations of total arsenic (tAs) and As(III) in water dropped rapidly within 3 days, while As(V) first increased slightly within 3 days and then gradually decreased. About 1.2% dimethylarsinate (DMA) was detected at the 14th day of treatment. These findings indicated that As(III) could be oxidized to As(V) and methylated to DMA in water with V. natans . In relation to V. natans , both tAs and As(V) were much higher in roots compared to leaves. Arsenate was the predominant species (≥ 95.65 ± 0.10%) in roots, and As(III) was only found at the 14th day (3.45–6.96 mg kg –1 ). In leaves, As(III) significantly increased ( P < 0.05) as the treatment duration increased. The proportions of As(V) (27.99–40.03%) were lower than those of As(III) and arsenobetaine (AsB) was detected (0.52–1.87 mg kg –1 ) after 7 d. The results of arsenic speciation demonstrated that the transformation of arsenic species in V. natans included As(V) reduction and As(III) methylation to AsB. There were a decrease in chlorophyll content, and an increase in MDA level and antioxidant enzymes (SOD, CAT , and POD) activities. The MDA level was much higher in leaves than roots, whereas the activities of SOD, CAT, and POD were the opposite, suggesting their possible role in arsenic resistance and detoxification. Our results indicate the potential of V. natans in phytoremediation of arsenic-contaminated water.
研究领域:
环境科学
·
植物修复
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水生生态学
·
毒理学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Energy Chemistry
·
2019
·
IF 5.162
Jun-Feng Qin,Jia-Hui Lin,Tian-Shu Chen,Da-Peng Liu,Jing-Yi Xie,Bao-Yu Guo,Lei Wang,Yong-Ming Chai,Bin Dong
Adjusting the intrinsic activity and conductivity of electrocatalysts may be a crucial way for excellent performance for water splitting. Herein, the rational design of vanadium element doped cobalt phosphide (V-doped CoP) nanoparticles has been investigated through a facile gaseous phosphorization using cobalt vanadium oxide or hydroxide (Co-V hydr(oxy)oxide) as precursor. The physical characterization shows that the homogeneous dispersion of V element on V-doped CoP nanoparticles have obtained, which may imply the enhanced electrocatalytic activity for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). The electrochemical measurements of the prepared V-doped CoP in alkaline electrolyte demonstrate the superior electrocatalytic activity for both HER (overpotential of 235 mV@10 mA cm −2 ) and OER (overpotential of 340 mV @10 mA cm −2 ). Further, V-doped CoP nanoparticles used as anode and cathode simultaneously in a cell require only 370 mV to achieve a current density of 10 mA cm −2 . The outstanding electrocatalytic activity may be ascribed to the improved conductivity and intrinsic activity owing to phosphating and the doping of V element. In addition, the long-term stability of V-doped CoP has been obtained. Therefore, metal doping into transition metal-based phosphides may be a promising strategy for the remarkable bifunctional electrocatalyst for water splitting.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2026
·
IF 2.6
Wenfang Liu,Sarenqiqige Bao,haiyan yu,Xiaohui Liu,Na Wang,Jun Wang
Carbon quantum dots (CQDs) were prepared via a hydrothermal method using glucose and citric acid as precursors. The synthesized CQDs and V2O5 nanomaterials were characterized using TEM, SEM and XPS, while their optical properties were analyzed by UV-Vis and fluorescence spectroscopy. The fluorescence of CQDs in aqueous solution was significantly quenched in the presence of V2O5 nanomaterials. At pH 8.2, the addition of glucose to the CQDs + V2O5 nanocomposite solution induced the reduction of V5+ to V4+ in V2O5, resulting in the fluorescence recovery of CQDs. Glucose could be quantitatively detected using CQDs + V2O5 nanocomposite, exhibiting a wide linear range (0.1 - 1000 μmol/L) and a low detection limit (0.539 μmol/L). Furthermore, the selectivity and anti-interference capability of the CQDs + V2O5 nanocomposite for glucose detection were investigated. Additionally, cytotoxicity assays and cellular imaging of CQDs were conducted. Overall, the integration of CQDs + V2O5 nanocomposite demonstrates potential as a novel diagnostic platform for non-enzymatic glucose detection in clinical applications
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DOI
高影响因子
JOURNAL OF POWER SOURCES
·
2026
·
IF 7.9
Li-Qian Cheng,Yi Gong,Jiangyun Ding,Jingye Pan,Kai Chen,Xuxia Hao,Yu Dai,Min Jiang,Xinyuan Xie,Fan Yang,Ruiping Liu
High-manganese-to-iron-ratio lithium manganese iron phosphate (LMFP) is a promising candidate for next-generation electric vehicle cathodes due to its high energy density, low cost, and safety. However, its poor cycling reversibility, especially at elevated temperatures, has limited its practical application, which is mainly due to the Jahn-Teller effect and Mn-ion dissolution. Ion doping is a commonly used modification method. Herein, in this work, a novel V/F co-doping and Mn 2+ capture membrane coated with CNT-doped hydroxyapatite (HAP-C) were employed to modify LMFP. The V/F co-doped LMFP showed enhanced structure stability during cycling tests compared to LMFP, and the capacity retention rate increased to 89.5 % after 300 cycles at 1C/1C. Meanwhile, the Mn 2+ -capturing separator further protected the anode stability by preventing the deposition of dissolved manganese ions. Due to these combined properties, the doped cathode battery using the HAP-C modified separator exhibited less manganese deposition on the anode. After 300 cycles at 1C/1C, 25 °C, the capacity retention rate further improved to 96.7 %, and after 300 cycles at 0.5C/0.5C, 45 °C, the capacity retention rate increased to 84.0 %, demonstrating outstanding cycling stability. This comprehensive strategy provides a basis for developing high-energy-density and long-cycle-life lithium-ion battery.
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产品关联
DOI
高影响因子
ACS Nano
·
2024
·
IF 15.8
Jin Wang,Jia Han,Shu Chen,Jie Li,Yangzhou Wang,Chuanyi Wu,Qianshuo Wang,Zihan Wang,Fei Chen,Wen Wan
van der Waals-layered niobium diselenide (NbSe2) intercalated by d-electron transition metals is an ideal test bed for the exploration of their diversiform evolution of ground states. These intercalations are mostly viewed as ordered structures aligned with periodicities of their host materials that enable control of the electronic phases via gradually changing of intercalation ratios. Here, we present the structure and superconductivity in tungsten (W)-intercalated 2H-NbSe2 crystals, which reveals an order to disorder distribution of W atoms with increasing confined intercalating amounts, leading to an approximate V-shape suppression of superconductivity. Aided by density functional theory calculations, we demonstrate that the local magnetic moment around W intercalants induced by the charge redistribution gives rise to the quick superconductivity suppression in 2H-NbSe2 below a certain dilute amount (W% = 0.06). Simultaneously, W intercalants also induce structural aberration due to aggregation effects and inhibit the generation of an ordered structure in 2H-NbSe2, resulting in a recovery of its superconductivity. The alteration of structure and electronic phases in 2H-NbSe2 via intercalation of nonmagnetic transition metals in the van der Waals gap enables the exploration of combined magnetic quantum criticality, superconductivity, and other related electronic correlations.
研究领域:
凝聚态物理
·
材料科学
·
超导物理
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量子材料
·
电子结构理论
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）