RSC Advances
·
2016
·Vol. 6
·期 35
·29592-29597
·
IF 3.289
Lei Cao,Qianqiu Tang,Gengchao Wang
Poly(3,4-ethylenedioxythiophene) (PEDOT) is a promising conductive polymer due to its high conductivity and optical transparency. However, two main challenges remain to be solved for its practical application, including improving the humidity stability and water resistance. Here, a novel cross-linkable copolymer of methacryloyloxyethyl isocyanate grafted poly(styrene sulfonate-co-2-hydroxyethyl acrylate) [MOI-P(SS-HEA)] is synthesized by a radical polymerization and condensation reaction. MOI-P(SS-HEA) is used as a multi-functional counter anion to obtain the UV-curable conductive dispersion of PEDOT:MOI-P(SS-HEA). The electrical conductivity, humidity stability, and water resistance of the cross-linked PEDOT:MOI-P(SS-HEA) [PEDOT:MOI-P(SS-HEA)-C] conductive films are investigated. The results indicate that the UV cross-linked reaction significantly improves the humidity stability and water resistance of the PEDOT:MOI-P(SS-HEA)-C conductive film.
研究领域:
材料科学
·
化学工程
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产品关联
DOI
高影响因子
Small
·
2026
·
IF 11.8
Li Li,Xiaobo Zhu,Wei Sha,Baojun Wang,Jingya Wang,Xin Yao,Linna Zhang,Wenle Ma,Yi Huang,Hui Zhang
With the flourishing trend toward miniaturization and high integration of electronic devices, materials that integrate both high thermal conductivity and efficient low-frequency electromagnetic wave absorption (EMA) performance has become crucial for addressing heat accumulation and electromagnetic compatibility issue. Traditional thermally conductive EMA materials, typically fabricated by blending EMA materials with highly thermally conductive components, suffer from drawbacks such as excessive volume, high interfacial thermal resistance, and incompatibility. Herein, a cross-scale biomimetic construction strategy was employed to successfully fabricate a dendritic cell-liked heterogeneous architecture comprising nitrogen-doped carbon nanotube (NCNT) networks confining high-entropy alloy (HEA) nanoparticles. By precisely regulating the microscopic morphology of the NCNTs networks, biomimetic cross-domain coupling channels were established, formatting a distinctive magnetic-electric-magnetic hierarchical loss mechanism and a 3D efficient conductive/thermal conduction pathway simultaneously. The optimized NCNTs/HEA-2 sample achieved a minimum reflection loss (RL min ) of −57.85 dB at 6.32 GHz, with an effective absorption bandwidth (EAB) of 2.32 GHz at a thickness of 3.10 mm. Meanwhile, the increased the in-plane thermal conductivity of the NCNTs/HEA-2 up to 2.44 W·m −1 ·K −1 , which are superior to those of most reported dual-functional materials. Furthermore, the material demonstrated excellent corrosion resistance, providing a material foundation for the thermal-electromagnetic integrated design of next-generation electronic devices.
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DOI
PubMed
高影响因子
ACS Sustainable Chemistry & Engineering
·
2025
·
IF 7.3
Jing Zhao,Jiajun Yue,Shang Gao,Tianqi Li
High-entropy alloys (HEAs), characterized by their multielement composition and elevated configurational entropy, offer significant potential as stable anode materials for sodium-ion batteries. Yet, their targeted design for sodium storage remains underexplored. Here, we develop a SnSbMnBiTe HEA anode via rational element selection and entropy engineering, integrating sodium-active elements (Sn, Sb, Bi, Te) with similar atomic properties and Mn as a stabilizing component. The resulting alloy achieves a high configurational entropy of 1.61 R, stabilizing its single-phase structure and uniform composition. Electrochemical tests demonstrate excellent performance, delivering 381.7 mAh g–1 after 80 cycles with 96.3% retention and sustaining 283.6 mAh g–1 at 5.0 A g–1. Dominant pseudocapacitive behavior and rapid charge transport underpin these results, while structural analyses confirm minimal swelling and a stable SEI layer. In full-cell configurations with Na3V2(PO4)3 cathode, the full cell delivers a stable capacity of 94.4 mAh g–1 after 300 cycles, maintaining nearly 100% Coulombic efficiency throughout. This study offers a viable strategy for designing high-performance high entropy alloy anodes and advancing durable sodium-ion battery technologies.
研究领域:
材料科学
·
电化学
·
储能技术
·
纳米技术
·
合金设计
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DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.7
Yiran Sun,Xingyue Zhou,Sikai Dai,Yu Fan,Chengkun Xie,Ruoqi Wang,Jun Qian,Lingzhi Nie,Peiyuan Zuo,Qixin Zhuang
High-entropy alloys (HEAs) are promising electromagnetic absorbers owing to tunable magneto-dielectric properties, yet severe particle agglomeration and grain coarsening severely degrade their wave-absorbing capacity. Herein, a Pd-mellitic acid ligand-induced strategy is developed to immobilize uniform FeCoNiCuPd quinary HEA nanoparticles on one-dimensional hollow mesoporous carbon nanorods (CPMO@5 A). Multidentate carboxyl groups of mellitic acid serve as universal coordination sites for synchronous multi-metal nucleation, effectively restraining HEA aggregation and triggering prominent grain refinement and lattice distortion driven by high configurational entropy. Benefiting from hierarchical porous architecture, uniform-dispersed HEA nanoparticles and abundant heterogeneous crystal defects, CPMO@5 A achieves superior electromagnetic wave absorption. It delivers a minimum reflection loss of −76.6 dB at 2.7 mm and an ultra-wide effective absorption bandwidth of 8.4 GHz, covering the entire Ku-band and most X-band. Meanwhile, it exhibits infrared absorptivities of 98.2%, 98.9% and 97.7% in long-wave, mid-wave and short-wave infrared regions, outperforming most reported HEA absorbers. Dielectric loss from Cu and carbon matrix, coupled with magnetic loss of Fe, Co, Ni and Pd, synergistically promotes electromagnetic energy dissipation. This work provides a facile universal route for fabricating HEA-based electromagnetic materials for high-performance radar-infrared compatible stealth materials.
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DOI
高影响因子
GREEN CHEMISTRY
·
2026
·
IF 10.6
Zhe Zheng,Yushun Han,Weikang Ling,Min Hong,Jiliang Ma,Runcang Sun
Noble metal catalysts face multiple challenges in photocatalytic applications, including high cost, limited active sites, and insufficient stability. In contrast, high-entropy alloys (HEAs) present a promising alternative due to their distinctive high-entropy effect, lattice distortion, sluggish diffusion, and cocktail effect. In this study, a MoMnZrTmBa HEA cocatalyst was rationally designed and integrated in situ with carbon nitride (CN) to construct a Schottky heterojunction. Within this architecture, the CN substrate acts not only as a stabilizing scaffold that promotes the dispersion and exposure of HEA active sites, but also as an electron donor to modulate the electronic structure. The interfacial Schottky barrier enables directed separation and migration of photogenerated charge carriers. Meanwhile, the synergistic interactions among the multiple HEA components provide abundant active sites, substantially enhancing the photocatalytic efficiency. Notably, the optimized H/C-15 catalyst delivered outstanding performance in the selective oxidation of xylose, achieving a high xylonic acid yield of 67.86% and a CO production rate of 2534.52 μmol g−1 h−1. Outdoor experiments under concentrated sunlight and 30 consecutive recycling tests further demonstrated excellent structural stability and practical viability of the system. This work underscores the potential of HEAs in photocatalytic biomass valorization and provides a strategic framework for their rational design.
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DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2025
·
IF 5.4
Yinchuan Pu,Duoduo Huang,Wei Xu
Recently, it is urgent for PET films to demonstrate both superhydrophilicity and superoleophilicity to meet evolving industrial demands in applications such as precision printing and biomedical interfaces. This work developed a superamphiphilic PET surface through synergistic integration of oleophilic/hydrophilic units and micro/nano-structures, utilizing a highly efficient UV-curable technology. Epoxy resin (EP) and hydroxyethyl acrylate (HEA) were utilised as the crosslinking matrix, with carboxylated carbon nanotubes (CNTs) as functional fillers for micro/nano-structures formation. The modified PET films exhibited complete wetting behavior, showing 0° contact angles for both water and diiodomethane, along with a 66.8 % increase in surface energy (81.4 mN/m) compared to unmodified films. The E1H2C3 coating maintained 3B-grade adhesion without compromising tensile strength. Futhermore, the highly conductive CNTs significantly enhanced the film's antistatic properties, ultimately reducing resistivity by 11 orders of magnitude versus pristine samples.
研究领域:
材料科学
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表面工程
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纳米技术
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高分子化学
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生物医学工程
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DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2025
·Vol. 36
·期 19
·1-14
·
IF 2.8
Ding Hongyu,Yang Yujie,Li Hao,Zhang Zhenyu,Geng Zhihao
In this study, AlCoCrFeNi high-entropy alloys (HEAs) powder is passivation-modified with phosphoric acid passivation solution and annealed under nitrogen atmosphere. Magnetic high-entropy alloy composites exhibiting low magnetic loss at low frequencies and high wave-absorbing performance at high frequencies have been successfully synthesized. X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy-dispersive spectroscopy (EDS) are used to study and analyze the phase changes, micro-morphology and surface element distribution of the composite materials. The magnetic permeability and magnetic loss of the composites at low frequencies are measured by B-H analyzer. The wave absorbing properties at high frequencies are characterized and tested using a vector network analyzer (VNA). It can be found that the physical phase of the high-entropy alloy composites after phosphoric acid passivation does not change significantly, but fine phosphate-containing passivation layers can be observed on the surface. The magnetic loss of the passivated composites at low frequencies is significantly reduced, with the lowest loss of 219.8 mW/cm 3 (1000 kHz, B m = 5mT) at 0.6 wt% phosphoric acid addition. The electromagnetic absorption performance is also improved to different degrees. The high-entropy alloy composites modified with 1.0 wt% phosphoric acid have the best absorption performance with the minimum reflection loss of − 36.494 dB with a matching thickness of 2.5 mm and the maximum effective absorption bandwidth of 6.16 GHz.
研究领域:
材料科学
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电磁学
·
冶金工程
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产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2014
·
IF 2.538
Zhiyin Chao,Lan Wang,Linyong Song,Yifeng Zhou,Wangyan Nie,Pengpeng Chen
Surface hydroxyl-functionalized poly(styrene- co -hydroxyethyl acrylate) [P( S - co -HEA)] microsphere were used to prepare P( S - co -HEA)/silver composite particles. Based on the weak interaction between silver ions and hydroxyl, silver ions were adsorbed onto the polymer surface and reduced by diethanolamine (DEA). The morphology of P( S - co -HEA)/Ag was easily controlled by the molar ratio of DEA/AgNO 3 . The composite particles were characterized by SEM, XRD, and UV–vis spectroscopy. The obtained P( S - co -HEA)/Ag particles with small and denser silver nanoparticles showed a high efficient activity to catalyze reduction of methylene blue (MB). While the P( S - co -HEA)/Ag particles with big and denser silver nanoparticles showed highly sensitive Raman enhanced performance.
研究领域:
材料科学
·
化学
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产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Fanglin Huo,Qing Liu,Zhendong Liu,Yangcheng Lu
Metal-incorporated zeolites as heterogeneous Lewis acid were applied in the ring-opening acidolysis of ethylene oxide with acrylic acid to prepare 2-hydroxyethyl acrylate (HEA). The catalysis characteristics, including Lewis acid strength and internal mass transfer resistance, were systematically investigated to facilitate the rational design of zeolite catalysts. Through modifying the Lewis acid strength of zeolites via different metals (Sn, Zr and Ti) incorporation and the internal mass transfer resistance of zeolites from the particle size, pore diameter or pore structure, it was found that the increased Lewis acidity can accelerate both the main and side reactions, resulting in the high activity but low selectivity of zeolite catalysts; the enhanced internal diffusion was the key to limiting subsequent cascade alcoholysis side reactions as well as the decline of catalytic performance. Based on these findings, Zr-containing zeolites featured with moderate Lewis acidity and uniform intracrystalline mesoporosity were designed and prepared, presenting excellent catalysis and recycling performance. These results demonstrated the great potential of the developed zeolite catalysts for the green synthesis of HEA as well as the similar ring-opening acidolysis of epoxides.
研究领域:
催化
·
化学工程
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
FOOD CHEMISTRY
·
2024
·
IF 8.5
Dandan Song,Guoqiang Li,Qian Liu,Xingge Huang,Weiyu Wang,Faming Gao
The accurate monitoring of pesticide residues in agricultural products is critical for maintaining food quality and human health. The development of innovative analysis techniques capable of satisfying the stringent demands of practical applications is the key to building intelligent and highly-efficient pesticide detection equipment. Here, an ultrasensitive electrochemical biosensor has been reported, which utilizes quinary PtPdRhFeCu high-entropy alloy mesoporous nanotubes (PtPdRhFeCu HEA mNTs) and N/Cu dual-atom anchored ZnSe@C (N-Cu-ZnSe@C) as electrode materials. Multi-effect coupling (defect effect, high entropy effect, lattice distortion effect and doping effect), endows the proposed sensing interface with extremely high electronic conductive properties and unprecedentedly large electroactive surface area, which could heavily promote the charge transfer capability, meanwhile assists the acetylcholinesterase (AChE) with high affinity towards its substrate, thereby significantly improving the pesticide analysis performance of the sensor. Remarkably, the detection limit of this assembled biosensor for aldicarb sulfone and methamidophos detection are notably low at 2.32 fM and 4.58 fM, respectively. Moreover, this biosensor demonstrated wide detection ranges (7 pM ∼ 70 nM for methamidophos and 1 pM ∼ 0.1 μM for aldicarb sulfone), high sensitivity and specificity, along with good recovery rates (86.67 % ∼ 117.14 %) in real samples. This signal amplification strategy enhances the analysis capability by integrating multiple effects, and provides an innovative analysis tool for hazardous substance analysis in food safety and environmental monitoring research.
研究领域:
食品安全
·
环境监测
·
材料科学
·
生物传感
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产品关联
DOI
PubMed
高影响因子
ACS Nano
·
2020
·
IF 14.588
Xiang Xu,Yang Guo,Brian P. Bloom,Jianjun Wei,Haoyang Li,Hailong Li,Yankun Du,Zheng Zeng,Liqing Li,David H. Waldeck
High entropy alloy nanoparticles (HEA-NPs) are expanding their influence in many fields. To explore the electronic structures in such multielemental systems, HEA-NPs were synthesized on two different carbon substrates through carbothermal shock and in situ reduction methods. The relationship between the apparent core level energy shifts (negative or positive) and the electron density changes among the components of quinary-metal HEA-NPs was investigated by X-ray photoelectron spectroscopy (XPS) analysis and first-principles electronic structure calculations. It was found that Cu displays a negative core level shift while Fe, Co, Mg, Cr, and Mn display a positive core level shift. While experiments show an apparent positive core level shift for Ni, electronic structure calculations reveal that this arises from shifts in the Fermi level and that the electron density redistribution in Ni behaves more like Cu than the other elements. The findings show that the electron density redistribution in the NPs occurs from less electronegative elements to more electronegative ones. This work should guide the design of HEA-NPs to expand their potential applications in mechanical structures, medicine, catalysis, and energy storage/conversion.
研究领域:
材料科学
·
纳米技术
·
表面科学
·
计算化学
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催化
·
能源存储/转换
✓ 已验证
DOI
PubMed
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2023
·
IF 6.6
Junhua Chen,Qiuping Ke,Shiting Li,Xuan Wang,Zhihao Zeng,Can Liu,Ruli Mo,Pran Gopal Karmaker,Zhihui Xie,Qiwen Yong
In this study, a UV-curable anti-smudge cathodic electrophoretic coating was developed by free radical copolymerization of various acrylic monomers using heptadecafluorodecyl acrylate (FOEA) as a functional monomer to provide a low surface energy structure to the acrylate precursor. The precursor was then grafted with the synthetic double-bond terminated IPDI-HEA on the precursor, and finally dipentaerythritol penta/hexaacrylate (5-Acl) was introduced as a crosslinker for the subsequent cathodic electrophoresis and UV-curing process. The chemical structure and surface fluorine content of the fluorinated waterborne polyacrylate (FWPA) were confirmed by 1 H NMR, FT-IR, and XPS , respectively. The surface morphology and roughness of the coating were assessed using SEM and AFM instruments. The contact and sliding angles of water, diiodomethane, and hexadecane were determined. The self-cleaning capability was demonstrated by measuring the oil-based and aqueous epoxy paints, as well as carbon powder sliding on the coated tinplate surface. The anti-graffiti property was also integrated with a red marker. The resistance to strong acid, salt spray, impact, friction, and bending were characterized. All these results showed remarkable self-cleaning and anti-graffiti capabilities of the as-prepared UV-curable electrophoretic coating. Meanwhile, the coating displayed exceptional robustness in resisting chemical corrosion and mechanical damage. This newly developed UV-curable anti-smudge cathodic electrophoretic coating has great application potential in various metal protection industries.
研究领域:
材料科学
·
涂层技术
·
表面化学
·
腐蚀工程
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）