ELECTROCHIMICA ACTA
·
2024
·
IF 5.5
Shaoxiong Liu,Jing Dai,Xuexue Li,Jianjun Xia,Mingyang Xie,Zhifeng Huang,Li Liu
Mn 0.5 Ti 2 (PO 4 ) 3 with a NASICON structural is used as an anode material in potassium-ion batteries due to its abundance of vacancies that can hold potassium ions . This characteristic not only contributes to its excellent stability but also results in a high specific capacity. However, the poor electrical conductivity of the polyanionic type structure limits the material's ability to fully utilize its capacity. In this paper, the conductivity and electrochemical stability of the Mn 0.5 Ti 2 (PO 4 ) 3 anode material are enhanced through composite formation with an F-doped carbon layer. The introduction of F into the carbon matrix creates a large number of vacancy defects and F active sites. The vacancies enhance the transport of potassium ions on the Mn 0.5 Ti 2 (PO 4 ) 3 material's surface, while the active sites exhibit strong electronegativity , improving the absorption of potassium ions. Therefore, the diffusion impedance of potassium ions is significantly reduced, leading to an increased diffusion rate of potassium ions. Attributing to the improved reaction kinetics, the Mn 0.5 Ti 2 (PO 4 ) 3 @F-doped carbon composite demonstrates a high specific capacity of 86 mA h g −1 at 10,000 mA g −1 when used as the anode for potassium-ion batteries. Even more, the specific capacity remains a capacity of 136 mA g −1 after 3000 cycles at 1000 mA h g −1 . This study enhances our comprehension of material design by investigating the alteration of carbon matrix to promote the electrochemical characteristics of materials.
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高影响因子
SCIENCE OF THE TOTAL ENVIRONMENT
·
2017
·
IF 4.9
Mi Deng,Yongming Wu,Chao Xu,Yuanxiang Jin,Xiaoli He,Jinbao Wan,Xiaoling Yu,Hongmin Rao,Wenqing Tu
A Chinese perfluorooctane sulfonate (PFOS) substitute frequently detected in the environment, 6:2 chlorinated polyfluorinated ether sulfonate (F-53B), has a similar structure to PFOS and it is proposed to cause thyroid dysfunction. To further confirm this hypothesis, the effects of F-53B on the thyroid endocrine system and underlying mechanisms were investigated in vitro and in vivo using rat pituitary GH3 cells and developing zebrafish, respectively. In GH3 cells, F-53B enhanced cell proliferation in a dose-dependent manner, indicative of thyroid receptor agonistic activity. In zebrafish larvae, F-53B exposure induced significant developmental inhibition and increased thyroxine (T 4 ) but not 3,5,3′-triiodothyronine (T 3 ) levels accompanied by a decrease in thyroglobulin (TG) protein and transcript levels of most genes involved in the hypothalamic-pituitary-thyroid (HPT) axis. Interestingly, T 4 levels remained significantly increased while TG protein and gene transcription levels were markedly upregulated after depuration. Molecular docking studies revealed that F-53B binds to transthyretin (TTR) by forming hydrogen bonds with Lys123 and Lys115, thereby interfering with thyroid hormone homeostasis. Our collective in vitro , in vivo and in silico studies provide novel evidence that F-53B disrupts the thyroid endocrine system at environmentally relevant concentrations, which cannot be recovered after depuration. Given the persistence of F-53B in the environment, the long-term consequences of thyroid hormone disruption by this chemical warrant further investigation.
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DOI
PubMed
高影响因子
PLANT CELL REPORTS
·
2024
·Vol. 43
·期 4
·1-15
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IF 5.3
Ma Guanglei,Hu Bijie,Yang Siyin,Cen Zixuan,Zheng Yiran,Dong Yan
Key message The regulatory action of BXs secreted by wheat on the pathogenicity of FOF causing Fusarium wilt in faba bean were analyzed. DIMBOA and MBOA weakened the pathogenicity of FOF. Abstract A large number of pathogenic bacteria in continuous cropping soil infect faba bean plants, leading to the occurrence of wilt disease, which restricts their production. Faba bean–wheat intercropping is often used to alleviate this disease. This study investigates the effect of benzoxazinoids (BXs) secreted by wheat root on the pathogenicity of Fusarium oxysporum f. sp. Fabae (FOF) and underlying molecular mechanisms. The effects of DIMBOA(2,4-dihydroxy-7-methoxy-1,4-benzoxazine-4-one) and MBOA(6-methoxybenzoxazolin-2-one) on the activity of cell-wall-degrading enzymes in FOF(cellulase, pectinase, amylase, and protease), FOF Toxin (fusaric acid, FA) content were investigated through indoor culture experiments. The effect of BXs on the metabolic level of FOF was analyzed by metabonomics to explore the ecological function of benzoxazines intercropping control of Fusarium wilt in faba bean. The results show that the Exogenous addition of DIMBOA and MBOA decreased the activity of plant-cell-wall-degrading enzymes and fusaric acid content and significantly weakened the pathogenicity of FOF. DIMBOA and MBOA significantly inhibited the pathogenicity of FOF, and metabolome analysis showed that DIMBOA and MBOA reduced the pathogenicity of FOF by down-regulating related pathways such as nucleotide metabolism and linoleic acid metabolism, thus effectively controlling the occurrence of Fusarium wilt in faba bean.
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DOI
PubMed
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2024
·
IF 5.6
Luzhou Cai,Ling Li,Dong Li,Yanping Wu,Jinrong Bai,Kai Zhong,Hong Gao
The loss of grains in the production chain caused huge waste worldwide, and the control of plant pathogenic fungi during harvest time is a critical solution to mitigate the damage. Eugenol, an important component of clove oil ( Syzygium aromaticum L.), has antioxidant, antifungal, and other activities. In this study, the unstable eugenol was incorporated into the nanoscale γ-cyclodextrin metal-organic framework (γ-CD-MOF), a cubic porous structure synthesized by vapor diffusion method. The investigation of morphologies, functional groups, crystalline structures and weight losing behaviors demonstrated the inclusion complex prepared from γ-CD-MOF and eugenol (CMFE). Compared with the γ-CD loaded with eugenol (CE), CMFE exhibited an improved loading rate with 4.06 % ( w/w ). And CMFE enhanced the stability of its inner eugenol against degradation by light and air. Moreover, the CMFE demonstrated a significant anti -F. graminearum activity both in the medium and on the wheat grains. The inhibition rate reached 83.8 % at 8 mg/mL in vitro , while the growth of the hyphae was effectively restrained at 4 mg/g in vivo . CMFE could damage the mycelial cell wall and trigger intracellular reactive oxygen species (ROS) accumulation, thus exhibiting its anti- F. graminearum activity. Our results showed that the biocompatible CMFE would be an environment-friendly substitute to chemical fungicides for the prevention of fungal contamination caused by F. graminearum .
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高影响因子
CHEMISTRY & BIODIVERSITY
·
2024
·
IF 2.3
Xiaonan Zhang,Xiaocheng Zhuang,Manxin Chen,Jingrong Wang,Zhuoyu Liu,Daxiong Qiu,Jinna Wang,Yan Huang,Weina Li,Zhiwei Liu
Tannic acid and Fe 3+ were used in this study to create a polyphenol–metal network-based composite film for the preservation of Melaleuca bracteata essential oils. The inhibition rate of ABTS and DPPH free radicals reached more than 90 % at an essential oil concentration of 20 mg/mL. Additive quantities of 2.0 % essential oil nano-emulsion, 0.8 % tannic acid/Fe 3+ solution, 0.4 % microcrystalline cellulose, and 1 % chitosan were used to maximize the characteristics of the composite films. When combined with FTIR analysis, X-ray diffraction and scanning electron microscopy revealed that the composite film containing the essential oil emulsion had a more reticulated structure. The essential oil composite layer on mangoes increased the fruit shelf time to 12 days, decreased weight loss by 10.81±4.70 %, increased the amount of soluble solids by 2.03±0.31 %, and increased the amount of vitamin C by 2.18±0.09 %. A trustworthy technical method for the storage and transportation of agricultural goods is offered by this study. Graphical
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DOI
PubMed
高影响因子
Nano Today
·
2025
·
IF 10.9
Yong Jiang,Zhong Liang,Hao Fu,Guangtong Hai,Yaping Du
Rare earth oxides (REOs) hold a pivotal position in enhancing electrocatalytic performance, yet the comprehension of their underlying mechanisms poses significant challenges. In this study, REOs loaded with a ternary alloy, abundant in oxygen vacancies, were synthesized through a one-pot reduction method and exhibited remarkable oxygen evolution reaction (OER) activity. The interaction at the interface between Fe 0.3 NiCo and CeO 2 induced substantial lattice distortion and modulated the oxygen vacancy concentration within the REOs. A unique electron transport channel, incorporating transition metal (3d) -oxygen vacancy (Vo) -rare earth (4 f) elements, was constructed at the interface, significantly boosting the OER activity of NiCo-CeO 2 . Notably, a current density of 10 mA cm −2 was achieved at a low overpotential of 151 mV. Comprehensive characterizations revealed that the interplay between the alloy and REOs regulated the oxygen vacancy concentration of the latter. In-situ attenuated total reflection infrared spectroscopy (ATR-IR) further confirmed that REOs facilitated the adsorption of O 2 /-OH, thereby enhancing OER activity. Theoretical calculations also indicated that oxygen vacancies effectively shifted the d and f band centers near the Fermi level, promoting d-f electron exchange and ensuring efficient electron transfer. This study offers a novel perspective for the development of efficient RE-based catalysts.
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高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2024
·Vol. 59
·期 36
·16909-16917
·
IF 3.5
Xie Jingru,Fu Zhifen,Cheng Qing,Chen Chen,She Yubin,Li Xiangyi
Low temperature co-fired ceramics (LTCC) technology is extensively utilized to meet the requirements of device integration and miniaturization. Low-fired Li 3 Mg 2 NbO 6 ceramics doped with x wt% Li 2 O–MgO–B 2 O 3 –CaF 2 –SiO 2 glass (LMBCS, x = 0.5, 1.0, 1.5, 2.0) were prepared by the solid-state reaction method for applications in microwave communication materials. All samples exhibited a single-phase Li 3 Mg 2 NbO 6 structure. The addition of LMBCS glass effectively reduced the sintering temperature of Li 3 Mg 2 NbO 6 ceramics from 1250 °C to 875 °C. And adding LMBCS glass improved the Q × f value of Li 3 Mg 2 NbO 6 ceramics. The Li 3 Mg 2 NbO 6 -1.0wt% LMBCS ceramics exhibited outstanding microwave dielectric properties: ε r = 16.8, Q × f = 89,495 GHz, τ f = − 27.4 ppm/°C at 875 °C, which indicates that this ceramic is potential candidate materials for LTCC.
研究领域:
材料科学
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电子陶瓷
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功能材料
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无机非金属材料
·
微波通信材料
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高影响因子
KOREAN JOURNAL OF CHEMICAL ENGINEERING
·
2022
·Vol. 39
·期 11
·3055-3066
·
IF 3.146
Zhai Zhenyu,Ali Amjad,Su Junfeng,Hao Zhenle,Liu Jiaran,Wang Zhao
Anaerobic biosynthetic crystals (ANBC) were prepared based on microbially induced calcium precipitation (MICP) and their potential explored for groundwater defluoridation and decalcification. The preparation conditions of ANBC were optimized and the influence of key factors (initial fluoride ions (F − ) concentration, pH, and initial calcium ions (Ca 2+ ) concentration) on the crystals was investigated. During the operation of the reactor, at pH of 7.0, the hydraulic retention time (HRT) of 6 h, and Ca 2+ concentration of 180 mg L −1 , a maximum removal efficiency reached 93.31%, while 66.20% of Ca 2+ could be removed. The adsorption dynamics study showed that the adsorption of ANBC was most in line with the pseudo-second-order model. The stability of ANBC operation was studied and failure reaction showed that the crystals maintained a stable removal ability after 35 times of repeated use. Further studies found that this was attributed to the continuous growth and synthesis of the crystals. The defluoridation and decalcification mechanism was further explored by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), and X-ray diffraction spectra (XRD). This study innovatively proposes a method for biosynthesis of crystals under anaerobic conditions based on MICP, which can efficiently and stably remove F − and Ca 2+ in groundwater, providing a valuable strategy for groundwater contaminant remediation and energy saving.
研究领域:
环境科学
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微生物学
·
水处理工程
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高影响因子
CHEMICAL ENGINEERING JOURNAL
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2025
·
IF 13.2
Yingjie Zhan,Kun Wu
Polystyrene (PS) nanospheres are non-covalently modified by PDDA, and a series of flexible nanocomposite films are fabricated with MXene nanosheets through electrostatic self-assembly and further hot-pressing. Due to the strong surface reactivity and the large specific surface area of the f-PS nanospheres, they are completely encapsulated by MXene nanosheets by serval interaction forces. This prevents the MXene nanosheet defect of easily stacked and agglomerated and maximizes the high thermal conductivity of MXene. SEM characterization verifies that a compact and long-range ordered thermal conductive path is formed in the microstructure of the nanocomposite film, as well as effectively improves interface compatibility, and reduces the generation of interfacial thermal resistance. At the same time, combined with the morphology results of the prepared nanostructures, the effects on thermal conductivity, flame retardant properties and mechanical properties are analyzed in detail. When the amount of filler is 90 wt%, the in-plane thermal conductivity increases dramatically to 40.39 W m −1 K −1 , which is 74.8 times that of f-PS. What's more, the 90M/f-PS nanocomposite film exhibited satisfactory flame retardancy and thermostability, decreasing the PHRR from 300 to 58 W g −1 and 70.0 wt% residue. This study provides a facile route for the design of thermal management interface materials with high thermal conductivity and flame retardant properties.
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高影响因子
ACS Applied Energy Materials
·
2024
·
IF 5.4
Lei Zhou,Xin Wei,Junxiang Zhang,Xuecui Mei,Yun Li,Chaoyue Zheng,Furong Zhang,An Wen,Bin Wang
Sulfide solid electrolytes (SSEs) have some huge advantages in high room-temperature conductivity, good thermal stability, low interfacial resistance, etc. They are one of the ideal solid electrolytes for developing high energy density and high safety for all-solid-state lithium batteries (ASSLBs). However, the preparation of SSEs requires expensive Li2S as the raw material, whose high cost limits its practical application. Herein, a cost-effective SSE Li7.3P2.9S10.75X0.3 (X = F, Cl, Br, and I) was designed and prepared by using low-cost lithium and sulfur instead of expensive Li2S. Significantly, the cost of SSEs was reduced from $169.72 to $28.13 kg–1 based on replacing the Li2S strategy. Moreover, the prepared Li7.3P2.9S10.75X0.3 (X = F, Cl, Br, and I) solid electrolytes have a high ionic conductivity of 1.86–2.73 mS cm–1 at room temperature and a high voltage window of 5 V. On this basis, we assembled the all-solid-state lithium battery TiS2/Li7.3P2.9S10.75I0.3/Li–In, which presented a high initial discharge capacity of 219 mA h g–1 at room temperature and satisfactory cycle stability with a capacity retention of 86.7% after 100 cycles at 0.50 mA cm–2. This work provides an effective strategy for reducing the cost of SSEs, advancing the practical process of ASSLBs.
研究领域:
材料科学
·
能源技术
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高影响因子
MICROPOROUS AND MESOPOROUS MATERIALS
·
2019
·
IF 4.182
Weina Shi,Yanqing Zhu,Cong Shen,Jifu Shi,Gang Xu,Xiudi Xiao,Runqiang Cao
Thermochemical heat storage based on inorganic salt hydrates is a promising approach to relieve the heat energy supply and demand conflicts, but there exist lots of defects of pure salts when applied to the thermochemical. This paper attempted to use functionalized Metal-Organic Frameworks (MOFs) as the porous matrices to improve the heat storage performance of inorganic salt hydrates. A series of MOFs/CaCl 2 composites based on MIL-101(Cr)-X (X = -NH 2 , –SO 3 H, H, –CH 3 , –F) were successfully synthesized and fully characterized by combining multiple techniques (i.e. powder X-ray diffraction, scanning electron microscopy , energy-dispersive X-ray analysis, N 2 adsorption-desorption, Fourier transform infrared spectroscopy , thermogravimetric and differential scanning calorimetry). The water sorption properties of the series of MOFs/CaCl 2 composites were studied during the hydration process, and a continuous adsorption/desorption experiment was also performed to investigate the cycle stability of the MOFs/CaCl 2 composites. The results show that the hydrophilic MOFs based composites have higher water sorption capacity (0.6 g(H 2 O)/g(sample) for MIL-101(Cr)–SO 3 H/CaCl 2 ) accompanied with higher heat storage density (1274 J/g for MIL-101(Cr)–SO 3 H/CaCl 2 ). Moreover, the series of MOFs all presented excellent cycle performance with little loss after continuous 17 adsorption/desorption cycles.
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高影响因子
TALANTA
·
2012
·
IF 3.794
Xiu-Ming Liu,Ya-Ping Li,Wei-Chao Song,Qiang Zhao,Xian-He Bu
A new ditopic ion pair receptor 1 containing two biindole moieties and a bis-benzocrown ether unit shows a remarkable color switching (ON- and -OFF) function induced by anion (F − ) and cation (K + ) recognition. The ditopic receptor 1 binds in a cooperative fashion to HSO 4 − in the presence of 1 ·K + and acts as a selective ditopic receptor to recognize ion pairs with a wavelength-ratiometric manner.
研究领域:
超分子化学
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分析化学
·
传感器与探针
·
阴离子识别
·
分子开关
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高影响因子
危险品化学品经营许可证（带存储）