Materials Science and Engineering B-Advanced Functional Solid-State Materials
·
2021
·
IF 4.051
Yeming Xian,Zhixin Kang
A new “bottom up” strategy via incorporating specific fillers into polymeric matrix and forming rough surface as well as exposed fillers without further surface treatment is presented to replace conventional palladium (Pd) activation or molecular grafting in polymer surface metallization hopefully. Transmission electron microscope (TEM), 3D profile, cross-cut testing and surface enhanced Raman spectroscopy (SERS) were conducted to studied the the effects of fillers in generating rough surface and improving adhesion. The results showed that, 1D/ 2D, functionalized fillers generated rougher surface, adhesion improved significantly after functionalization. Before functionalization, the adhesion is influenced by surface roughness and original functional groups of the fillers and after functionalizaton, the adhesion is depended by the mechanical properties and behaviors of the fillers.
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高影响因子
BIOELECTROCHEMISTRY
·
2024
·
IF 4.8
Guiyin Li,Huafu Feng,Xinhao Li,Shengnan Li,Jintao Liang,Zhide Zhou
Glypican-3 (GPC3) is an essential reference target for hepatocellular carcinoma detection, follow-up and prediction. Herein, a dual-signal electrochemical aptasensor based on reduced graphene oxide-cuprous oxide (RGO-Cu 2 O) nanozyme was developed for GPC3 detection. The RGO-Cu 2 O nanoenzyme displayed excellent electron transport effect, large specific surface area and outstanding peroxidase-like ability. The differential pulse voltammetry (DPV) signal of Cu 2 O oxidation fraction and the chronoamperometry ( i-t ) signal of H 2 O 2 decomposition catalyzed by RGO-Cu 2 O nanozyme were used as dual-signal detection. Under optimal conditions, the log-linear response ranges were 0.1 to 500.0 ng/mL with the limit of detection 0.064 ng/mL for DPV technique, and 0.1–50.0 ng/mL for i-t technique (detection limit of 0.0177 ng/mL). The electrochemical aptasensor has remarkably analytical performance with wide response range, low detection limit, excellent repeatability and specificity, good recovery in human serum samples. The two output signals of one sample achieve self-calibration of the results, effectively avoiding the occurrence of possible leakage and misdiagnosis of a single detection signal, suggesting that it will be a promising method in the early biomarker detection.
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PubMed
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2021
·Vol. 32
·期 14
·19901-19911
·
IF 2.478
Wang Fei,Liu Xiaoyu,Liu Zhuang,Wang Yanming
The large-scale application of Li-ion batteries requires high-performance cathode materials. Herein, a high-activity Li 3 V 2 (PO 4 ) 3 /C composite cathode has been fabricated through a solid-state reaction employing dual carbon sources of poly(acrylic acid) and soluble starch. The effects of single carbon source and dual carbon sources on the physical and electrochemical properties of Li 3 V 2 (PO 4 ) 3 /C are analyzed. The porous structure induced by poly(acrylic acid) and highly conductive carbon resulted from soluble starch enable the composite to achieve large discharge capacities and stable cyclability at high C-rates. At 3.0–4.3 V and 10 C, a large discharge capacity of 121 mAh g −1 (nearly 91% of the theoretical capacity) can be obtained, along with high capacity retention of 88% over 1000 cycles. Furthermore, at 3.0–4.8 V, the composite also possesses larger high-rate capacities and better cyclability than other composites prepared using single carbon source. The dual carbon sources bring a synergistic effect to the enhancement of electrochemical performances of the Li 3 V 2 (PO 4 ) 3 /C composite.
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高影响因子
Journal of Materials Chemistry C
·
2021
·Vol. 10
·期 3
·994-1002
·
IF 7.393
Shihai Miao,Yanjie Liang,Yan Zhang,Dongxun Chen,Shao Yan,Jingwei Liu,Xiao-Jun Wang
Near-infrared (NIR) phosphor-converted light-emitting diodes (LEDs) are becoming an efficient and promising solution for high-power NIR light sources, which have shown a broad range of possible applications in the fields of agriculture, food analysis and biomedical diagnostics. However, there is a long-standing challenge to develop tunable and thermally stable NIR-emitting phosphors as luminescence converters in the design of low-cost, compact and high-efficiency NIR LEDs. Here, we report a tunable broadband NIR photoluminescence in Na3Sc2(PO4)3:Cr3+ phosphors via Ga3+ co-doping and explore their application in NIR LEDs. With the fine-tuning of the doping concentration of Ga3+ ions from 0 to 6%, the NIR luminescence of the obtained phosphor can be tuned from sharp line emission at 694 nm (2E → 4A2 transition of Cr3+) to broadband emission centered at 750 nm (4T2 → 4A2 transition of Cr3+) upon blue light excitation. In the meanwhile, the NIR emission intensity at 100 °C and 150 °C can retain ∼100% and ∼84% of the initial value at room temperature when the Ga3+ content is determined to be 6%, leading to thermally stable broadband NIR emission in the as-synthesized Na3Sc2(PO4)3:Cr3+,Ga3+ phosphors. The NIR LEDs constructed by combining the commercial blue LED chips with the optimized NIR phosphors can generate broadband emission in the wavelength range of 600–1000 nm and deliver ∼4 mW of NIR output power with a power conversion efficiency of 2.6% at a drive current of 60 mA. The potential of the fabricated NIR LEDs as a lighting source for night vision and vein imaging is also demonstrated. The outcomes here highlight promising potential for Na3Sc2(PO4)3:Cr3+,Ga3+ as phosphor-downconverted light emitters in the design of high-power NIR LED devices for practical applications.
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高影响因子
Heliyon
·
2023
·
IF 4
T. Widjaja,N. Hendrianie,S. Nurkhamidah,A. Altway,Bayu Yusuf,Fakhrizal F,Aisyah Alifatul Zahidah Rohma,Atha Pahlevi
LASC catalyst synthesis process was carried out using iron metal (Fe) and its characterization properties were tested. There are five stages carried out, namely, the manufacture of the LASC Fe(DS)3 catalyst, lactic acid dehydration, polycondensation of lactic acid into l -lactic acid oligomers (OLLA), depolymerization of oligomers into l -lactide, and the ROP process to convert l -lactide into Polymers. l -lactic acid (PLLA). The analysis used is as follows, Karl-Fisher; Spectroscopy Fourier Transform Infrared (FTIR); and Nuclear Magnetic Resonance (HNMR); Gel Permeation Chromatography (GPC); Thermogravimetry Gravity Analysis (TGA) and X-Ray Diffraction (XRD). Based on the experimental results, the catalyst Fe(DS) 3 has a crystallinity value of 24% which indicates an amorphous nature and is easy to react. The value of the thermal stability of the catalyst is at 180 °C where the catalyst is able to process up to a temperature of 180 ° C. Each step of the ROP is validated by FTIR analysis which shows that the components of the group are in accordance with the expected product. The comparison of the crystallinity values of PLA produced with FeCl 3 and Fe(DS) 3 were 37.5 and 49%, respectively. Melting temperature (Tm) values are 111 and 107 ° C, respectively, Td values are 327 and 352 °C, and the resulting molecular weights are 23,720 and 20,232 g/mol. Based on the results obtained, it can be seen that the use of a LASC catalyst in the form of Fe(DS) 3 is more effective than without using a LASC catalyst.
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PubMed
高影响因子
APPLIED ORGANOMETALLIC CHEMISTRY
·
2025
·Vol. 39
·期 5
·e70103
·
IF 0
Palanisamy Vasudhevan,Dong Yu,Ruoyu Zhang,Mysoon M. Al-Ansari,Velu Manikandan,Hui Ma,Saurav Dixit,Shengyan Pu
Chlorinated aromatic chemicals are highly hazardous, transmissible, and bioaccumulative. Developing an economically feasible catalytic method to facilitate the effective removal of chlorinated aromatic pollutants is critical for contamination prevention. The current study extensively investigated the utilization of organic ligands such as citrate (CA) and ethylenediaminetetraacetic acid (EDTA) to increase Fe(II)-activated persulfate (PS) for 4-chlorophenol (4-CP) and 3-chlorobenzoic acid (3-CB) degradation in water. The decomposition and consumption ability of persulfate in PS alone and Fe(II)/PS systems for 4-CP and 3-CB was very low because of the rapid utilization as well as discontinuous availability of Fe(II), which indicates the decline of Fe(III) to Fe(II). But, when using the citrate/Fe(II)/PS and EDTA/Fe(II)/PS combinations, the degradation of 4-CP and 3-CB was 78.86%, 75.01% and 84.84%, 80.99% within 30 min, respectively. The significant enhancement is due to both ligand-to-metal transfer of charges process, and this increased the process of rate determination through carrying electrons into the citrate and EDTA ligands to Fe(III), generating Fe(II). In addition, the 4-CP and 3-CB degradation facilitated with citrate/Fe(II)/PS and EDTA/Fe(II)/PS systems was efficiently degraded at acidic pH (2.0–6.0) conditions. The pseudo-first-order kinetics model accurately predicted 4-CP and 3-CB degradation in the organic ligand/Fe(II)/PS systems. The degradation percentage of 4-CP and 3-CB increased with increasing PS and Fe(II) concentrations. Moreover, both sulfate and hydroxyl radicals formed by citrate/Fe(II)/PS and EDTA/Fe(II)/PS systems were identified as major reactive oxygen species for 4-CP and 3-CB decomposition. The present investigation recommends an alternate strategy to enhance the Fe(II)-activated persulfate mechanisms.
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产品关联
DOI
Materials
·
2025
·Vol. 18
·期 9
·1969
·
IF 3.2
Ruixia Chu,Hongtao Zhang,Wanyou Huang,Fangyuan Qiu,Yan Wang,Zhenyu Li,Xiaoyue Jin
Lithium-ion batteries (LIBs) with high power, high capacity, and support for fast charging are increasingly favored by consumers. As a commercial electrode material for power batteries, LiFePO4was limited from further wide application due to its low conductivity and lithium-ion diffusion rate. The development of advanced architectures integrating rational conductive networks with optimized ion transport pathways represents a critical frontier in optimizing the performance of cathode materials. In this paper, a novel self-supporting cathode material (designated as LFP@LVP-CES) was synthesized through an integrated coaxial electrospinning and controlled pyrolysis strategy. This methodology directly converts LiFePO4, Li3V2(PO4)3, and polyacrylonitrile (PAN)) into flexible, binder-free cathodes with a hierarchical structural organization. The 3D carbon nanofiber (CNF) matrix synergistically integrates LiFePO4(Li/Fe/POx) and Li3V2(PO4)3(Li/V/POx) nanoparticles, where CNFs act as a conductive scaffold to enhance electron transport, while the POxpolyanionic frameworks stabilize Li+diffusion pathways. Morphological characterizations (SEM and TEM) revealed a 3D cross-connected carbon nanofiber matrix (diameter: 250 ± 50 nm) uniformly embedded with active material particles. Electrochemical evaluations demonstrated that the LFP@LVP-CES cathode delivers an initial specific capacity of 165 mAh·g−1at 0.1 C, maintaining 80 mAh·g−1at 5 C. Notably, the material exhibited exceptional rate capability and cycling stability, demonstrating a 96% capacity recovery after high-rate cycling upon returning to 0.1 C, along with 97% capacity retention over 200 cycles at 1 C. Detailed kinetic analysis through EIS revealed significantly reduced Rctand increased Li+diffusion. This superior electrochemical performance can be attributed to the synergistic effects between the 3D conductive network architecture and dual active materials. Compared with traditional coating processes and high-temperature calcination, the preparation of controllable electrospinning and low-temperature pyrolysis to some extent avoid the introduction of harmful substances and reduce raw material consumption and carbon emissions. This original integration strategy establishes a paradigm for designing freestanding electrode architectures through 3D structural design combined with a bimodal active material, providing critical insights for next-generation energy storage systems.
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
·
2020
·Vol. 143
·期 5
·3479-3488
·
IF 2.731
Chen Zhongwei,Yu Yuan,Zhang Qingwu,Chen Zhiquan,Chen Tingting,Li Changxin,Jiang Juncheng
Ammonium polyphosphate surface-modified by silane coupling agent (3-aminopropyl) triethoxysilane (KH-550), named STAPP, incorporated with pentaerythritol and melamine to prepare intumescent flame retardant unsaturated polyester resin (UPR/IFRs). Surface groups, surface elements, thermal stability and surface morphology of STAPP were characterized by Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, thermogravimetric analysis (TG) and scanning electron microscopy (SEM). The flame retardancy of the UPR composites was studied by limit oxygen index (LOI), vertical burning test (UL-94) and cone calorimeter test, and its thermal stability was evaluated by TG. The results showed that IFRs greatly improves flame retardancy, thermal stability and carbon formation ability of UPR. Compared with pure UPR, when the loading of IFRs was 25 mass%, the LOI was increased from 19.8 to 41.5%, the UL-94 test reached the V-0 rating from NR, peak heat release rate and total smoke production was decreased by 54.1 and 38.7%. Furthermore, the addition of IFRs delayed the product of smoke and release heat. TG results showed that 27.6 mass% chars remained in UPR/IFRs at 1073 K, showing a good char forming ability. Besides, honeycomb-type carbon layer with few cracks and holes was observed by SEM. Finally, the flame retardancy mechanism of IFRs was elaborated in detail, which was attributed to the siloxy groups and expanded carbon layer.
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高影响因子
Journal of Materials Chemistry A
·
2018
·Vol. 6
·期 46
·23357-23365
·
IF 9.931
Anyu Su,Qiang Pang,Xin Chen,Jiajun Dong,Yingying Zhao,Ruqian Lian,Dong Zhang,Bingbing Liu,Gang Chen,Yingjin Wei
Li3V2(PO4)3 (LVP) has been highlighted as a promising cathode material for lithium ion batteries, but it suffers from poor rate capability and rapid capacity decay due to sluggish electrode kinetics and vigorous electrode/electrolyte side reactions at high voltage. In this study, an inexpensive aqueous lithium poly-acrylic acid (LiPAA) binder was developed to deftly solve the shortcomings of the LVP material by tailoring the functional groups in the binder. The good adhesion and cohesion properties of the LiPAA binder ensured a close linkage between the active LVP particles, conductive additives and current collector, which formed a stable and conductive network in the electrode. In addition, the reversible H+/Li+ exchange in LiPAA effectively assisted the transport of Li+ ions at the electrode interface, which allowed the establishment of a Li+ conductive pathway without considerable degradation of the electrolyte. Due to these advantages, the LVP electrode containing the LiPAA binder exhibited significantly improved electrochemical performance compared to the electrode that employed the traditional polyvinylidene fluoride binder. The new electrode configuration showed a large specific capacity of 107 mA h g−1 at 70C rate and a high capacity retention of 91% was obtained after 1400 cycles at 10C rate, showcasing the great potential of this aqueous binder in lithium ion batteries.
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高影响因子
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
·
2023
·
IF 6.1
Xiang Ye,Wen Chen,Fu-Jie Yan,Xiao-Dong Zheng,Peng-Cheng Tu,Peng-Fei Shan
Berries and their functional components have been put forward as an alternative to pharmacological treatments of type 2 diabetes mellitus (T2DM), and more attention has been paid to the gut microbiome in the pathophysiology of T2DM. Thus, we tried to examine the metabolic impact of red bayberry-derived cyanidin-3-O-glucoside (C3G) and investigate whether the antidiabetic effects of C3G were associated with the gut microbiome. As a result, C3G administration was found to reduce blood glucose levels of diabetic db/db mice, accompanied by increased levels of glucagon-like peptide (GLP-1) and insulin. Moreover, 16S rRNA analysis showed that the dominant microbiota modulated by C3G were pivotal in the glucose metabolism. Furthermore, the modulation of C3G on metabolic activities of gut bacteria leads to an increase in intestinal levels of key metabolites, particularly short-chain fatty acids. This contribution helps in promoting the secretion of GLP-1, which in turn increases insulin release with the purpose of reducing blood glucose levels. Overall, these findings may offer new thoughts concerning C3G against metabolic disorders in T2DM.
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PubMed
高影响因子
JOURNAL OF POLYMER ENGINEERING
·
2020
·Vol. 40
·期 5
·409-414
·
IF 1.126
Tian-Xiang Jin,Miao-miao Wu,Jin-bo Ou-yang,Qin Zhang
Poly (butylene succinate-co-butylene-3-hydroxyphenylphosphinyl-propionate) (PBSH) was synthesized through polycondensation. Then, 4,4′-methylene diphenyl diisocyanate (MDI) was introduced into PBSH matrix by reactive blending. The chemical structure and properties of the blending products were investigated using Fourier Transform Infrared Spectroscopy (FT-IR), differential scanning calorimetry (DSC), limiting oxygen index (LOI) tests, thermogravimetric analysis (TGA), and vertical burning tests. The results proved that MDI can improve the mechanical properties and flame retardancy of PBSH. In addition, it was found that the crosslinking structure can reduce the hydrolysis rate of PBSH and effectively eliminate the melt-dripping of PBSH during combustion.
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高影响因子
Journal of Cleaner Production
·
2019
·
IF 6.395
Hossain M. Zabed,Yufei Zhang,Qi Guo,Junhua Yun,Miaomiao Yang,Guoyan Zhang,Xianghui Qi
The probiotic bacterium, Lactobacillus reuteri, possesses a unique pathway for metabolizing glycerol into 3-hydroxypropionic acid (3-HP) and 1,3-propanediol (1,3-PD), which are two important platform chemicals. In this work, a potent L. reuteri strain, designated as FXZ014, was isolated and identified from healthy human feces for co-biosynthesis of 3-HP and 1,3-PD during whole cell biotransformation of glycerol. Initially, biotransformation conditions were optimized for this new strain using single factor optimization and response surface methodology (RSM). Under the optimum batch conditions, FXZ014 produced 8.74 ± 0.24 g/L of 3-HP and 9.94 ± 0.36 g/L of 1,3-PD with a corresponding net yield of 0.67 mol/mol. Finally, efficiency of the isolated strain in the co-production of these two metabolites was compared with the same of a reference strain, namely L. reuteri CICC 6118. Compared to the reference strain, the amounts of 3-HP and 1,3-PD produced by the isolated strain were significantly higher that corresponded to 38.4% and 21.14%, respectively. Therefore, FXZ014 could be a promising natural strain for co-biosynthesis of 3-HP and 1,3-PD from glycerol.
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高影响因子
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