ACS Applied Polymer Materials
·
2026
·
IF 4.7
Shuang Chen,Ang Gao,Ke Liu,Ru Xiao
To enhance the flame retardancy of polyamide 6 (PA 6) while retaining its processability and mechanical properties, we developed a synergistic strategy that combines reactive copolymerization with additive incorporation. A rationally designed, lactam-based phosphonamide comonomer (DCL) ensured compatibility and reactivity during the ring-opening polymerization of caprolactam and was copolymerized in the presence of melamine cyanurate (MCA). The resulting PA 6-DCL/MCA composites exhibited outstanding fire performance: PA 6 with 5 wt % DCL alone achieved an LOI of 29.5%, whereas the hybrid composite containing 3 wt % DCL and 2 wt % MCA reached a UL94 V-0 rating with nonflaming melt dripping. The flame-retardant mechanisms were systematically investigated using techniques including cone calorimetry, with a focus on the pyrolysis process and charring behavior. The flame suppression is attributed to a synergistic effect involving dominant gas-phase inhibition combined with condensed-phase action, the latter comprising heat dissipation through controlled melt flow and the formation of a slightly reinforced char barrier. This design provides a scalable, halogen-free route to high-performance PA 6, where the flame-retardant efficacy arises from the interplay of molecular structure and additive synergy.
✓ 已验证
产品关联
DOI
高影响因子
Carbon Energy
·
2026
·
IF 24.2
Kaiming Li,Ben Huang,Aihao Xu,Kai Nie,Xianhai Bai,Qian Ning,Guodong Wang,Shiming Qiu,Huibing He,Yang Ren,Jing Xu,Xucai Yin
The inherent hydroxide-rich (OH⁻) environment in alkaline media facilitates the two-electron oxygen reduction reaction (2e − ORR). However, the strong interaction between alkali metal cations and solvated water molecules significantly reduces the connectivity of the hydrogen bond network within the alkaline electric double layer, thereby severely impeding rapid proton transport at the electrode surface. Herein, we rationally designed ZnO with oxygen vacancies-driven [Fe(CN) 6 ] 3− coordination (denoted as Fe(CN) 6 -ZnO-V O ) as an efficient 2e − ORR catalyst for H 2 O 2 electrosynthesis. We demonstrate that the locally coordinated [Fe(CN) 6 ] 3− establishes pathways for rapid proton transfer at the electrode surface by forming a hydrogen bond network with interfacial water molecules. Concurrently, this configuration significantly reduces the energy barrier of the *OOH intermediate. These synergistic effects collectively optimize the electrocatalytic performance for H 2 O 2 production under alkaline conditions. As expected, the Fe(CN) 6 -ZnO-V O delivers a significantly increased current density of 130 mA cm −2 that is much higher than ZnO (32 mA cm −2 ), as well as a superior H 2 O 2 production rate of 9.41 mol g cat −1 h −1 and a high faradaic efficiency of exceeds 90%. Our study highlights the crucial role of interfacial hydrogen-bonding connectivity and provides theoretical and technical guidance for developing reliable strategies to enhance the electrocatalytic properties of 2e − ORR.
✓ 已验证
产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2018
·Vol. 44
·期 13
·15432-15439
·
IF 3.057
Fengping Ruan,Degang Deng,Hua Yu,Ming Wu,Bowen Chen,Shiqing Xu,Ruoshan Lei
We synthesized and investigated the effect of Eu 2+ ions doping in a novel phosphor-silicate Ca 8 Sc 2 (PO 4 ) 6 (SiO 4 ) phosphor. The structure and photoluminescence properties were determined by X-ray powder diffraction Rietveld refinement , diffuse reflection spectra, emission-excitation spectra, decay curves and temperature dependence spectra. The phosphors showed an asymmetric broad-band blue emission (Eu 2+ ) with peak at 470 nm. Furthermore, we presented the Ca 7.96 Sc 2 (PO 4 ) 6- y (SiO 4 ) 1+ y :0.04Eu 2+ phosphors by co-substituting [Eu 2+ -Si 4+ ] for [Ca 2+ -P 5+ ], and different behaviors of luminescence evolution in response to structural variation were verified among the series of phosphors. The results were attributed to the presence of multi Ca 2+ sites, resulting in the mixing of blue and green emissions for Eu 2+ ions. The complex anion substitution of [PO 4 ] 3- by [SiO 4 ] 4- induced an increased crystal field splitting of the Eu 2+ ions, which caused a decrease in emission energy from the 5d excited state to the 4f ground state and a resultant red-shift from 470 nm to 520 nm. All the properties indicated that the Ca 8 Sc 2 (PO 4 ) 6 (SiO 4 ):Eu 2+ phosphors have potential application for color-tunable WLEDs .
✓ 已验证
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2018
·
IF 3.779
Chen Zhou,Hui Zhang,Jianian Cheng,Hongyi Li,Sadeh Beysen
Two new isostructural lead borates , Pb 8 Mg(BO 3 ) 6 and Pb 8 Ca(BO 3 ) 6 , have been synthesized via high temperature solution method. The single crystal structures of title compounds contain ∞ [Pb 8 B 6 O 18 ] 2- double layers composed of planar BO 3 triangles, Pb(2)O 9 and distorted Pb(1)O 5 polyhedra, these layers condense in c -axis, and the MgO 6 (or CaO 6 ) polyhedra fill into the layers, forming a three-dimensional framework. The stereochemical activity of lone pair (SCALP) electrons were found in the Pb(1)O 5 polyhedra, which combine with the BO 3 units, generating strong optical anisotropy . The calculated birefringences of Pb 8 Mg(BO 3 ) 6 and Pb 8 Ca(BO 3 ) 6 using first-principles method are 0.15@1064 nm and 0.12@1064 nm, respectively, which are comparable to the commercial α -BaB 2 O 4 (α-BBO) crystal and imply that they probably can be used as birefringent materials. The electronic structures, density of states of title compounds were calculated by density functional theory (DFT). Meanwhile, the TG-DSC curves, infrared spectral and UV–Vis–NIR diffuse reflectance spectral were measured.
研究领域:
无机化学
·
材料科学
·
晶体工程
·
非线性光学材料
·
固体化学
✓ 已验证
DOI
高影响因子
JOURNAL OF RARE EARTHS
·
2018
·Vol. 36
·期 8
·873-878
·
IF 2.524
Yongchao Fang,Xiufang Cui,Zhaobing Cai,Chang Wang,Guo Jin
One of the problems limiting the application of Stellite 6 coating is the residual stress resulting in cracks in the coating easily. In order to reduce the residual stress and increase the nano-indentation hardness, La 2 O 3 was added to Stellite 6 coating in this study, and the influence on the microstructure, nano indentation hardness and residual stress of the coatings were investigated by scanning electron microscopy (SEM) with energy dispersive spectrum (EDS), X-ray diffraction (XRD) and nano-indentation tester. Results indicate that the addition of La 2 O 3 leads to the phenomenon that the dendrite is partly transformed into the equiaxed grain, which results in the grain refinement. The nano-indentation hardness of coatings is improved, which is attributed to the fine-grain strengthening and dispersion strengthening effect of La 2 O 3 . With the addition of La 2 O 3 , the residual stress in coatings is decreased significantly. Especially, when the content of La 2 O 3 is 0.8 wt%, the nano indentation hardness increases by 1.31 times and residual stress decreases to 20 percent, compared with coating without La 2 O 3 .
研究领域:
材料科学
·
表面工程
·
金属学与金属工艺
·
力学性能
·
显微组织分析
✓ 已验证
DOI
高影响因子
ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY
·
2014
·Vol. 20
·期 7
·883-888
·
IF 1.735
Zhang Zhongzheng,Wang Hui,Chen Xinqing,Xie Rongyong,Gao Peng,Wei Wei,Sun Yuhan
The sorption isotherms of CO 2 in wet ordered mesoporous silica KIT-6 with different amounts of pre-adsorbed water were firstly collected experimentally using a volumetric method in the temperature range of 275–281 K. The isotherms show an inflection point indicating CO 2 hydrates form in the pore spaces which is proofed by the enthalpy change calculated at the inflection pressure, and the quantity of water content shows considerable effect on the sorption capacity of CO 2 . The highest enhancement of sorption capacity in the presence of water is observed in wet KIT-6 sample with water loadings of 2.48, which is about 12.80 mmol/g and 1.86 times than that on dry sample. However, the saturation capacity is still far less than that what can be stored merely in the form of hydrates due to the low ratio of water utilization because of the large pore and the polar surface of KIT-6.
研究领域:
材料科学
·
环境工程
·
吸附技术
·
碳捕集与封存
✓ 已验证
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2020
·
IF 3.83
Bingjing Tao,Weifeng Wang,Huanyu Liu,Tianxiu Du,Haitao Wu,Chunfang Xing,Dongzhi Wang,Yuping Zhang
Li 4 Mg 3 [Ti 0 · 6 (Mg 1/3 Nb 2/3 ) 0.4 ] 2 O 9 (LMT 0.6 (MN) 0.4 O) ceramics doped with 1–5 wt% lithium fluoride (LiF) were prepared through a conventional solid-state reaction at a relatively low sintering temperature . The influences of the LiF additive on the micromorphology, crystal phase composition, and sintering behavior, as well as the microwave dielectric properties of the LMT 0.6 (MN) 0.4 O ceramics were explored in depth. The addition of the LiF sintering additive reduced the densification temperature of the LMT 0.6 (MN) 0.4 O ceramics from 1450 °C–950 °C. X-ray powder diffractometer patterns indicated that a single phase formed for all experimental samples. Scanning electron microscopy photographs revealed that dense and homogeneous microstructures were obtained at 950 °C for the LMT 0.6 (MN) 0.4 O ceramics with 3–5 wt% LiF. Additionally, the optimized microwave dielectric properties, including ε r = 16.24, Q·f = 107,828 GHz (at 8.13 GHz), and τ f = −6.25 ppm/°C were achieved in the prepared LMT 0.6 (MN) 0.4 O ceramics with 4 wt% LiF at the sintering temperature of 950 °C. Furthermore, the excellent chemical compatibility between this component and silver were confirmed based on the results of XRD and EDS analyses, suggesting that the LMT 0.6 (MN) 0.4 O ceramics with 4 wt% LiF could be a suitable material for the application of low temperature co-fired ceramics.
研究领域:
材料科学
·
陶瓷
·
微波工程
✓ 已验证
DOI
高影响因子
LUMINESCENCE
·
2026
·Vol. 41
·期 7
·e70559
·
IF 2.8
Huiping Zhou,Mingyi Kang,Zhifeng Hao,Xue Zhang,Peng Liu,Guangyou Zhang,Xueying Wang,Na Jiang
Two simple Schiff bases PHMP( (E)-2- ((2-(9H-purin-6-yl)hydrazono)methyl)phenol) and PHMEP( (E)-2- ((2-(9H-purin-6-yl)hydrazono)methyl)-6-ethoxyphenol) were designed and synthesized based on 6-hydrazine-purine with salicylaldehyde and 3-ethoxy-salicylaldehyde, respectively. Among them, both PHMP and PHMEP exhibit significant “turn-on” response characteristics when coordinating with Zn 2+ ions in an EtOH/H 2 O buffer solution, demonstrating remarkable selectivity and sensitivity, accompanied by a noticeable color change. Initially, neither probe exhibited significant fluorescence. However, upon forming complexes with Zn 2+ , PHMP and PHMEP exhibit bright blue and green fluorescence responses, respectively. In contrast, the ethoxy modification in PHMEP alters its steric hindrance and electron cloud density, resulting in fluorescence signals with both superior selectivity and sensitivity compared with PHMP . Additionally, the newly formed complex PHMEP -Zn 2+ can serve as a selective “turn-off” fluorescence probe for Cu 2+ ions. Experimental data indicate that the detection limits of PHMP and PHMEP for Zn 2+ ions are 1.08 × 10 −8 M and 8.85 × 10 −9 M, respectively; the detection limit of PHMEP -Zn 2+ for Cu 2+ ions is 1.79 × 10 −8 M. Job's plot analysis, ESI-MS titration, and theoretical calculations confirmed that the stoichiometric ratio of the probes to the target ions is 1:1. Additionally, PHMP and PHMEP demonstrate broad potential applications in quantitative detection, being suitable for both tap water and convenient test strips.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF ETHNOPHARMACOLOGY
·
2026
·
IF 6.8
Fuyu Xiong,Yuxin Bai,Shifei Wu,Yulu Wang,Xinjie Dai,Yang Yang,Jiyu Gong,Gaole Zhang,Tianzhu Zhang
Ethnopharmacological relevance Yupingfeng San (YPFS), a classic tonic formula in Traditional Chinese Medicine (TCM), has been extensively applied clinically for centuries. Originating from Jiuyuan Fang , its earliest extant record is Danxi Xinfa . YPFS is composed of Huangqi ( Astragalus membranaceus Bunge), Baizhu ( Atractylodes rubra Dekker), and Fangfeng ( Saposhnikovia divaricata (Turcz.) Schischk). Due to its traditional efficacy of " replenishing qi and consolidating the exterior," YPFS is commonly prescribed for allergic rhinitis, nephrotic syndrome, and chronic nephritis. Recent studies have confirmed that YPFS protects renal function and alleviates renal fibrosis in mice with diabetic nephropathy, while simultaneously improving lung function and reducing pulmonary fibrosis in bleomycin-induced rats. Taken together, these results suggest YPFS possesses substantial potential for mitigating organ fibrosis. Purpose This study investigated the renoprotective efficacy and underlying mechanism of YPFS extract in a cisplatin-induced mouse model of renal interstitial fibrosis. Using an integrated in vivo and in vitro approach, we sought to validate the therapeutic potential of this traditional formula against chemotherapy-induced nephrotoxicity. Methods The chemical components of YPFS extract were analyzed using UPLC-Q-TOF -MS. For the in vivo study, male BALB/c mice received YPFS extract (1, 1.95, or 3 g/kg) by oral administration once daily for 7 days after a single injection of cisplatin (20 mg/kg, i.p.). Renal function was assessed by measuring serum creatinine, plasma BUN, fasting blood glucose, and the urine protein-to-creatinine ratio. Kidney tissues were examined using H&E and Masson's trichrome staining for histopathological analysis, and the expression of fibrosis markers (α-SMA, collagen I, fibronectin) was measured by immunohistochemistry and western blotting. For the in vitro study, MPC-5 podocytes were treated with high glucose (25 mM) for 48 h to induce injury, and then intervened with YPFS extract at concentrations of 20, 40, or 80 μg/mL, along with JAK2 inhibitor AG490 and STAT3 agonist Colivelin for mechanism verification. Cell viability was measured by MTT assay, apoptosis was assessed by Hoechst 33342 staining, the expression of α-SMA was measured by cellular immunofluorescence, and mitochondrial morphology was observed using MitoTracker Red staining and TEM. Mitochondrial function was evaluated by Na + /K + -ATPase and Complex I activities, and oxidative stress levels were determined by T-SOD, GSH, and MDA assays. RNA-seq was conducted to identify DEGs in MPC-5 cells, and Western blotting was used to verify key protein expression in both cells and tissues. Results UPLC-Q-TOF-MS analysis identified 57 compounds in YPFS extract, predominantly flavonoids (40.35%) and saponins (21.05%). In cisplatin-treated mice, the extract dose-dependently reduced serum creatinine, blood urea nitrogen, Urine protein-to-creatinine ratio, and fasting blood glucose. It also decreased collagen deposition and α-SMA overexpression in kidney tissues. In MPC-5 cells, the extract restored cell viability, reduced apoptosis and α-SMA overexpression, improved mitochondrial membrane potential and redox balance, and restored mitochondrial fusion-fission balance by increasing Mfn1/2 and decreasing Drp1 expression. Transcriptomic analysis revealed that the extract reversed the high glucose-induced activation of gene pathways related to IL-6/JAK/STAT3 signaling, oxidative phosphorylation, and apoptosis, with findings confirmed at the protein level. Mechanistic investigations using the JAK2 inhibitor AG490 and STAT3 agonist Colivelin confirmed that the cytoprotective and anti-fibrotic effects of YPFS were primarily dependent on the IL-6/JAK/STAT3 signaling pathway. Conclusion YPFS extract ameliorates cisplatin-induced renal interstitial fibrosis by suppressing IL-6/JAK/STAT3 signaling and restoring mitochondrial homeostasis. These findings provide a pharmacological basis for the traditional use of this formula and highlight its potential as an adjunct therapy for reducing chemotherapy-related kidney injury.
✓ 已验证
DOI
PubMed
高影响因子
BIOLOGICAL & PHARMACEUTICAL BULLETIN
·
2026
·Vol. 49
·期 3
·525-537
·
IF 1.8
Tingting Zhang,Sirui Mo,Hongcheng Luo,Guangbin Ye,Qing Qin,Minli Jiang,Yingkai Wang,Jingjing Bi,Zhengmian Zhang,Zhongquan Qi
Multiple sclerosis is a chronic inflammatory disease characterized by demyelination in the central nervous system (CNS). The existing drugs for multiple sclerosis treatment carry significant side effects. The aim of this study was to investigate the safety and effect of a new compound N, N′-dicyclohexyl-N-linoleic acylurea (DCLAA) on experimental autoimmune encephalomyelitis (EAE), the principal multiple sclerosis animal model. Results showed that DCLAA had low toxicity, and DCLAA significantly inhibited the EAE progression and reduced the dosage requirements of methylprednisolone. After DCLAA treatment, the activation of microglia and astrocytes in the CNS was reduced. The expression of proinflammatory cytokines decreased, whereas the expression of anti-inflammatory cytokines increased. DCLAA reduced the number of peripheral T cells and CNS infiltration in EAE mice. Moreover, DCLAA attenuated the proliferation and induced the apoptosis of myelin oligodendrocyte glycoprotein (MOG)-specific T cells. These results indicate that DCLAA exhibit low toxicity and is able to alleviate the clinical symptoms of EAE by reducing neuroinflammation and suppressing the survival of peripheral T cells.
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.7
Yi Li,Yong Tang,Yujing Wang,Junyin Chen,Chun Huang,Jianwei Zhao,Lirong Qin
Aqueous zinc‑ion batteries (AZIBs) are promising for safe and low‑cost energy storage, yet their practical application is hindered by limited cathode cyclability and poor low‑temperature performance. Herein, a ternary composite of V 3 O 4 /Fe 3 O 4 /V 1.5 Fe(CN) 6 nanorods is directly grown on carbon cloth via a simple hydrothermal method. The electrode exhibits a unique activation behavior: its specific capacity gradually increases by more than 300% during the initial galvanostatic charge‑discharge cycles, reaching 530.1 mAh/g at 1 A/g. Ex situ XRD and XPS reveal that activation induces lattice expansion and an increase in V 4 + and Fe 3+ contents without phase transformation. The VF‑20 electrode delivers exceptional long‑term stability (89% retention after 4200 cycles at 4 A/g) and remarkable low‑temperature performance (69 mAh/g at −40 °C and 0.1 A/g). This work provides a new paradigm of activation‑driven performance enhancement for multiphase cathodes in AZIBs.
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Tangjun Zhang,Zhenyu Yang,Tianyang Feng,Tao Liu,Xiaofei Qian,Hai Deng
As artificial synaptic transistor devices become increasingly important in simulating biological synaptic functions, it is crucial to design high-performance synaptic transistor memory using a facile and high-efficiency process. Herein, we demonstrate an organic synaptic transistor memory fabricated using poly(pentadecafluorooctyl methacrylate)-block-poly(4-vinylphenol) supramolecules with 1-aminopyrene (PPDFMA-b-(P4HS-APy)) as the polymer electret. The solution-processable PPDFMA-b-(P4HS-APy) can rapidly self-assemble into an ordered nanostructure with sub-6 nm domain size after annealing at a low temperature of 80 °C for only 10 min, which defines pyrene moieties into hydrophilic P4HS blocks surrounded by a hydrophobic and insulating PPDFMA matrix to form an effective electret. By optimizing the composition and tuning the nanostructure of the electret, a high-performance transistor device with a large memory window of 74 V, a high on/off current ratio of ∼105, and outstanding memory stability over 104 s was obtained. Additionally, a 6 × 6 synaptic transistor array was prepared, which exhibits good uniformity and can replicate versatile biological synaptic behaviors. Neuromorphic computing simulations constructed with the synaptic transistor reveal a high recognition accuracy of 91.6%. This study offers a strategy for preparing high-performance synaptic transistor devices using a facile and practical process.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）