POLYMER COMPOSITES
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2025
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IF 4.7
Heping Zhang,Wenpu Zhang,Mingwei Hu,Yiqi Tang,Gongcheng Xu,Xinghui Hou,Ying Zhou
Ethylene Vinyl Acetate (EVA) has been widely used in various industries for its excellent flexibility and corrosion resistance. However, its high flammability poses significant safety risks, necessitating the incorporation of flame-retardants to improve its fire resistance. This study focuses on the wet surface modification of magnesium hydroxide (MH) using n-octyl triethoxysilane (OTES). The hydrolysis products of OTES react with the OH on the MH surface to form Si O Mg bonds, thereby enhancing the surface hydrophobicity and compatibility with EVA. MMH was incorporated into EVA, and the resulting composites were characterized using XRD, SEM, TG, BET, FT-IR, and XPS. The optimal modification conditions were achieved with an OTES dosage of 3 wt% at 45 °C for 60 min, yielding a contact angle of 142°, an activation index of 98.12%, and an oil absorption rate of 43 mL/100 g. The EVA/MMH composites demonstrated superior thermal stability and flame retardancy compared to unmodified EVA. Specifically, the limiting oxygen index (LOI) of EVA/MMH-55 reached 34.9%, and it achieved a UL-94 V-0 rating, indicating excellent self-extinguishing properties. This study provides a novel approach for the surface modification of MH, offering a practical solution to enhance the flame retardancy and thermal stability of EVA composites. Highlights Hydrophobic MMH is obtained by wet surface coating modification of MH by OTES. Contact angle of MMH is 142° under optimal modification conditions (60 min, 45 °C and 3 wt%) The chemical reaction process between OTES and the MH surface has been analyzed, revealing the mechanism by which the Si OH groups on OTES react with the OH groups on the MH surface to form Si O Mg bonds, which intertwine to form a hydrophobic layer. The specific surface area of MMH is reduced, and it has good compatibility with EVA resin. The LOI of EVA/MMH-55 is 34.9%, making it a nonflammable material.
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高影响因子
APPLIED SURFACE SCIENCE
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2025
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IF 6.9
Zirui Qin,Jiehao Xie,Xiaofang Wen,Hongcan Lou,Zipin Peng,Xingkun Chen,Yuan Tan,Jisong Zhang
Chlorinated phenols are priority pollutants that require efficient low-temperature removal technologies. Here, we synthesize a series of spinel-type MAl 2 O 4 (M = Co, Mg, Zn, Cu) supports and deposit 1 wt% Pd via incipient-wetness impregnation to evaluate their hydrodechlorination (HDC) performance toward 4-chlorophenol under ambient aqueous conditions (30 °C, 0.2 MPa H 2 ). Catalytic screening shows that the identity of the divalent A-site cation strongly modulates activity: Pd/Co-Al achieves 91.8 % conversion with > 98.3 % selectivity to phenol, outperforming Pd/Ni-Al (84.7 %) and the remaining analogues. Pd/Cu-Al exhibits almost no conversion (<5.0 %), while Pd/Mg-Al and Pd/Zn-Al give moderate conversions (ca.55.4–58.7 %). Detailed characterization by XRD, N 2 -physisorption, H 2 -TPR, XPS and STEM reveals that the superior performance of Pd/Co-Al is rooted in (i) strong metal–support interactions that stabilize a balanced Pd 2+ /Pd 0 surface ensemble, (ii) coherent lattice matching at Pd(1 1 1)/CoAl 2 O 4 (311) interfaces that suppress particle growth, and (iii) high spinel thermostability that mitigates leaching and coking. A 30 h continuous-flow test confirms stable operation without activity loss. This work elucidates how subtle variations in spinel composition dictate Pd electronic structure and interfacial geometry, providing design principles for next-generation HDC catalysts.
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高影响因子
Journal of Cleaner Production
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2020
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IF 7.246
Shanshan Shao,Xinggang Hu,Wenbin Dong,Xiaohua Li,Huiyan Zhang,Rui Xiao,Yixi Cai
Aldol condensation of biomass-derives coupled with hydrogenation is a promising route for the production of renewable aviation fuel. In this study, a bifunctional catalyst was prepared to integrate the aldol condensation of cyclopentanone and hydroprocessing for aviation fuel in one pot. Due to its strong mild-basic sites, Mg–Al–O performed the best with the total yield of dimer and trimer of 80.4%. Nickel was screened out to be favorable for hydrogenation. Considering the unsatisfactory porous structure of Ni/Mg–Al–O, the bifunctional catalyst was prepared with activated carbon (AC) as carrier. With Ni loading of 20 wt%, the maximum yield of targeted alkanes reached 81.1% over Ni/Mg–Al–O/AC. The calcination and reduction temperature in the preparation process were both optimized at 550 °C. In the reusability test, the yield of targeted alkanes reduced to 31.6% in the 5th run. To attenuate the hydration effect, n-pentane was introduced as solvent, and the bifunctional Ni/Mg–Al–O/AC performed stably in 5 runs. By the design of bifunctional catalyst based on the theoretical basis to realize the integration of C–C coupling and hydrogenation in one pot, it will promote the development of aviation fuel from biomass in a more sustainable and green way.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
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2019
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IF 8.355
Jing Zeng,Dongzheng Wu,Xin Wang,Junnan Wu,Jiyang Li,Jing Wang,Jinbao Zhao
The high-voltage cathode material based on the sodium super ionic conductor (NASICON) structured Na 3 V 2 (PO 4 ) 3 (NVP) has been found to be a potential candidate for Mg storage. In this work, to improve its electrochemical performance, we construct honeycomb-like structured NVP/C/G with faster electronic and ionic transport by a convenient and universal spray-drying method for the first time. After electrochemically desodiating two Na from the NVP/C/G (ED-NVP/C/G), the ED-NVP/C/G is tested in highly anhydrous Mg electrolyte, and the insights into its Mg storage property and mechanism are carefully studied. An initial capacity of 87 mAh g −1 with a relatively high average discharge voltage of 2.47 V vs. Mg 2+ /Mg is obtained at 0.1 C. The X-ray diffraction (XRD) results show that the inserted Mg 2+ ions tend to occupy the Na2 (at 18e sites) vacant sites. The investigation of kinetic process by galvanostatic intermittent titration technique (GITT) reveals that the Mg diffusion kinetics is faster during the demagnesiation process. The electrochemical reaction bases on two-phase transition mechanism, and the R ct value shows a positive relationship to the formation of NaV 2 (PO 4 ) 3 phase. Finally, a Mg full cell prototype based on the ED-NVP/C/G cathode with Mg metal anode is built. The rational structure design of NVP/C/G improves the electrochemical performance for Mg storage, and our work also gives new understanding into the Mg storage mechanism in the ED-NVP/C/G structure.
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高影响因子
Materials Today Communications
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2026
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IF 4.9
Haoyu Feng,Yiting He,Zhaoxiang Ma,Weiyi Wu,Wenjuan Zhou
Zn–Mg–Cu TPMS gradient scaffolds were fabricated by selective laser melting. • Mg 2 Zn 11 and Cu 5 Zn 8 phases contributed to enhanced mechanical properties. • Gradient architecture and PDA coating regulated degradation behavior. • The integrated design improved surface bioactivity and promoted osteogenic differentiation. Biodegradable Zn-based scaffolds have attracted increasing attention for bone repair owing to their moderate degradation rate and favorable biological properties; however, achieving coordinated regulation of mechanical integrity, degradation behavior, and osteogenic activity remains challenging. Zn–Mg–Cu triply periodic minimal surface (TPMS) gyroid scaffolds with a radial pore-size gradient were fabricated by selective laser melting (SLM) and subsequently subjected to NaOH alkali-thermal activation and polydopamine (PDA) coating. The incorporation of Mg and Cu significantly enhanced the mechanical properties of the Zn alloy through solid-solution and second-phase strengthening. Meanwhile, the TPMS gradient porous architecture improved stress distribution and provided spatially graded pathways for electrolyte transport, thereby influencing degradation behavior and ion release characteristics. NaOH alkali-thermal treatment markedly improved surface wettability, and the PDA@Zn alloy scaffolds retained a hydrophilic interface; the complete surface treatment mitigated rapid ion release during the early stage of degradation. The scaffolds exhibited favorable compressive strength, controllable degradation behavior, and enhanced cytocompatibility. ICP-MS measurements revealed distinct Zn 2 + , Mg 2+ , and Cu 2+ release profiles, while the in vitro assays demonstrated favorable cell proliferation, osteogenic differentiation, and extracellular matrix mineralization. These biological responses may be associated with the combined effects of the released ions. Overall, the fabricated scaffolds exhibited favorable mechanical properties and controlled degradation behavior, while the complete surface treatment was associated with improved cytocompatibility and osteogenic activity.
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高影响因子
ADVANCED FUNCTIONAL MATERIALS
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2026
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IF 19.9
Yukun Hu,Shutao Gao,Chuanhui Xun,Hongchuan Wang,Tao Xu,Weidong Liang,Liang Ma,Weibin Sheng
Spinal cord injury (SCI) involves oxidative stress, inflammation, and mitochondrial dysfunction that impair neural cell survival, while conventional therapies fail to sustainably improve the lesion microenvironment. Here, we developed a composite hydrogel patch (Mg-CDs/Exo@EW) by leveraging the enzyme-mimicking activity and coordination crosslinking ability of magnesium-doped carbon dots (Mg-CDs) to induce egg white gelation, with uniform incorporation of orange juice–derived exosomes (Exo). Orange peel-derived CDs displayed strong antioxidative nanozyme activity, which was further enhanced by magnesium ion doping to promote M2 macrophage polarization, axonal regeneration, and neural repair. Transcriptomic and Western blot analyses revealed that Mg-CDs activate the GPX4/ACSL4 pathway to suppress neuronal ferroptosis. Untargeted metabolomics showed that Exo are enriched in flavonoids and vitamin C with potent antioxidative and anti-inflammatory effects, while their negatively charged surface and adhesion molecules provide targeted delivery and enhanced repair efficacy. In vivo, Mg-CDs/Exo@EW effectively alleviated oxidative stress, regulated inflammation, reduced glial scar formation, and supported axonal regeneration, ultimately improving motor functional recovery. This multifunctional platform offers a promising therapeutic strategy for SCI.
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2022
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IF 6.371
Jianling Huang,ChengWei Liao,Hui Wang,YuJun Zhao,Liuzhang Ouyang,Jiangwen Liu,Min Zhu
Mg-based alloy anodes suffer from severe corrosion in conventional electrolytes (KOH solution) and this substantially obstructs the cycle life, which is a great challenge for using them in the Ni-MH battery. Herein, a high concentration tetramethylammonium hydroxide (TMAH) aqueous electrolyte with a special hydrate structure is explored and enables excellent cycle stability and high capacity for Mg-based alloy anodes. In this electrolyte, the Mg 0.4 Ti 0.1 Ni 0.5 alloy anode delivers a maximum discharge capacity of 466 mAh g −1 , and maintains 210 mAh g −1 after 100 cycles owing to the reduced corrosion rate , which are much better than that in 6 M KOH electrolyte, being 425 mAh g −1 and 69 mAh g −1 , respectively. Furthermore, by in-situ forming Cu coating on the Mg 0.4 Ti 0.1 Ni 0.5 electrode surface during charging process with the adding 0.01 M of Cu(OH) 2 in TMAH electrolyte, the corrosion of the electrode is further suppressed and the reversible capacity can reach 313 mAh g −1 after 100 cycles. The high conducting Cu coating can also increase the rate capability of the electrode by promoting the charge transfer. Thus, using TMAH electrolytes provides a new approach to promote the electrochemical performances of Ni-MH batteries with Mg-based alloy anodes.
研究领域:
材料科学
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电化学
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能源存储
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金属腐蚀与防护
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功能材料
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电池技术
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2026
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IF 3.1
Shengnan Liu,Tianyu Lan,Liwu Zu,Shaobo Dong,Binghua Hou,Xiaochen Bao,Jifa Liu,Jinying Yan,Ping Zhang,Jiaxing Xie
Polyethylene (PE), a widely used polyolefin material, is limited in high-safety applications due to low flame retardancy and thermal stability. To address this, stearic acid (SA) was used for surface graft modification of magnesium-aluminum layered double hydroxide (LDH), constructing a low-polarity organic functional layer to enhance interface compatibility with PE. SA-LDH/PE flame-retardant reinforced composites were successfully prepared. After modification, LDH hydrophobicity and dispersibility improved significantly, with water contact angle increasing from 11.7° to 146°. Composite surface hydrophobicity was also optimized, contact angle increasing from 67.38° to 78.3°. At a 10 wt% loading, composites show optimal performance: flexural modulus increased by 105% compared to pure PE, tensile properties enhanced, char residue to 5.34%, limiting oxygen index (LOI) rising from 17.4% to 23.5%. SA modification induces hydrophilic-to-hydrophobic transition in LDH, promoting uniform dispersion and efficient interfacial load transfer in PE matrix, facilitating stable char layer formation and improving thermal stability and flame retardancy. This study proposes a green efficient LDH modification strategy, providing an effective pathway for halogen-free flame-retardant polyolefins and theoretical support for high-performance LDH dispersion and synergistic flame-retardant enhancement.
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高影响因子
Journal of Water Process Engineering
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2026
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IF 6.6
Muhammad Yawar Younis,Tongyu Wei,Longtao Ren,Safdar Abbas,Wenting Li,Ying Kan,Abdul Hameed Pato,Yun Wei
Novel linker-based La-containing Mg-MOF synthesized for phosphate removal. • Hexagonal rod-like La-containing Mg-MOF provides abundant active adsorption sites. • Ultrahigh phosphate adsorption capacity (448.59 mg g −1 ) via Langmuir model. • La-containing Mg-MOF shows high stability and strong anion resistance. • DFT and polynomial regression-based study of phosphate adsorption. A porous hexagonal rod-like La-containing Mg-MOF was rationally designed and fabricated via a controlled hydrothermal route to achieve efficient phosphate removal from aqueous media. The introduction of La 3+ and Mg 2+ generated a La-containing Mg-MOF with enhanced surface reactivity and abundant adsorption sites. Structural and surface characterization using FTIR, SEM-EDS, BET, and XPS suggested the successful formation of the La-containing Mg-MOF, its mesoporous architecture, and effective integration of both metal sites. Adsorption experiments demonstrated high phosphate uptake, strong selectivity, and stable performance over a broad pH range and in the presence of competing anions. Kinetic analysis indicated that the adsorption process followed pseudo second-order behavior, suggesting surface site-controlled adsorption. Thermodynamic evaluation revealed that phosphate adsorption was spontaneous, endothermic, and entropy-driven. Isotherm modeling showed excellent agreement with the Langmuir model, yielding adsorption capacity of 448.59 mg g −1 . Mechanistic insights derived from density functional theory calculation, FTIR and XPS analyses revealed that phosphate removal occurred through a synergistic combination of outer sphere electrostatic interactions and inner-sphere complexation involving ligand exchange and coordination with La-containing active sites. Furthermore, polynomial regression fitting models were applied to investigate the quantitative relationships between phosphate adsorption capacity and experimental parameters such as pH, initial concentration, contact time, adsorbent dosage, and solution volume, achieving R 2 values above 0.98. These results demonstrate La-containing Mg-MOF are highly promising candidates as next-generation adsorbents for efficient phosphate removal in water treatment systems. Download: Download high-res image (196KB) Download: Download full-size image
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高影响因子
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
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2026
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IF 6.3
Xiaohui Ma,Anran Guo,Liwen Yan,Lingyi Meng,Heng Chen,Xiaoxia Hu,Jinyu Wu,Jiachen Liu
As high emissivity emitters, traditional pseudobrookite ceramics are limited in thermal protection applications due to their structure degradation at high temperatures. In this work, a high-entropy pseudobrookite, (Mg,Co,Ni,Zn)Ti 2 O 5 , was designed, and CoTi 2 O 5 was selected as a single-component counterpart to evaluate the high-entropy effect on phase stability and emissivity. After heating at 1400 °C for 15 h, (Mg,Co,Ni,Zn)Ti 2 O 5 retained a single pseudobrookite phase with nearly unchanged emissivity, whereas CoTi 2 O 5 exhibited obvious phase degradation and emissivity deterioration. The higher 2.5–7 μm emissivity of (Mg,Co,Ni,Zn)Ti 2 O 5 was attributed to its narrower band gap (2.66 eV) and a higher oxygen vacancy fraction (56.87%). When coated on alumina-silica fiber fabric, the (Mg,Co,Ni,Zn)Ti 2 O 5 coating exhibited improved thermal-protection performance owing to its high infrared emissivity and reduced heat conduction, while maintaining good mechanical properties after heat treatment. These results demonstrate that (Mg,Co,Ni,Zn)Ti 2 O 5 is a promising high-emissivity ceramic for extreme thermal environments.
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高影响因子
CERAMICS INTERNATIONAL
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2026
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IF 6
Mengting Li,Yixin Luo,Xing Wang,Jun Ding,Chao Yu,Zhenglong Liu,Chengji Deng
To address the diminished corrosion resistance of low carbon Al 2 O 3 –C refractories resulting from reduced carbon content, this study incorporated MgSiN 2 prepared by reconstructing high-silicon magnesite mineral phases into Al 2 O 3 –C refractories, and prepared samples at 1450 °C in an N 2 atmosphere. The influence of MgSiN 2 addition level on the phase composition, microstructure, mechanical properties, and corrosion resistance of the material was comprehensively explored. The findings demonstrated that MgSiN 2 in-situ generated flake Mg-Sialon and granular MgAl 2 O 4 ceramic phases, forming a three-dimensional interwoven folded network structure within the matrix, significantly boosting the aggregate-matrix interfacial bonding. When the content of MgSiN 2 was 3 wt%, the porosity of the material was the lowest, and the cold modulus of rupture and cold crushing strength were the best due to the synergistic effect of the generated ceramic phases. With the increase of MgSiN 2 content, the corrosion index decreased from 79.4% to 59.1%, and the corrosion resistance of the material gradually improved.
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高影响因子
ACS ES&T Engineering
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2026
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IF 6.3
Youyu Li,Min Zou
The low grade, high activity, and high toxicity of chromium in chromium-containing sludge present significant challenges for its immobilization and recycling. To effectively stabilize and recover chromium from chromium-containing sludge, this study presents a novel method referred to as “narrow-particle-size- fraction (Fe, Mg)1–xO solid-solution magnetization”. By prescreening the appropriate particle size fraction of (Fe, Mg)1–xO, this process leverages the thermodynamic and kinetic advantages offered by high temperatures to convert the toxic and highly mobile chromium component into a nontoxic, structurally stable, and strongly magnetic (Fe, Mg)3–xCrxO4 (0 ≤ x ≤ 2) solid-solution during roasting. The (Fe, Mg)3–xCrxO4 phase is then isolated using weak magnetic separation. Taken the chromium-containing sludge with a Cr2O3 content of 5.94 wt % as the raw material, after optimizing the (Fe, Mg)1–xO particle size fraction and roasting conditions, the chromium recovery rate in the magnetic concentrate exceeds 92%, while the grade of Cr2O3 increases to 12.47%. Various analyses confirm that the (Fe, Mg)3–xCrxO4 solid-solution is an effective magnetic carrier for chromium in chromium-containing sludge. This study provides valuable insight for the mineralogical immobilization and resource utilization of chromium-containing solid waste.
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高影响因子
危险品化学品经营许可证（带存储）