JOURNAL OF MATERIALS SCIENCE
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2026
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IF 4.4
Li Xiaoguang,Chen Jia,Li Aoqi,Li Jing,Wang Mingyu,Li Liangsheng,Shangguan Enbo
A novel in situ self-sulfidation approach was devised to fabricate ZnO/ZnS/C ternary nanocomposites as highly stable anodes for alkaline Zn–Ni batteries. Zinc sulfate acted as a dual-purpose precursor, providing both zinc and sulfur, whereas acrylamide served as the carbon source and in situ reductant. In a single-step carbothermal pyrolysis at 800 °C, the carbon matrix converted sulfate ions to sulfide, facilitating the simultaneous generation of electrochemically active ZnO, a protective ZnS layer, and a conductive carbon network during a single thermal treatment. The optimized ZnO/ZnS/C-2 electrode exhibited a discharge capacity of 576.8 mAh g −1 after 600 cycles at 1 C and maintained 513.2 mAh g −1 at 15 C. Under identical conditions at 10C, the ZnO/ZnS/C-2 electrode delivered a capacity of 545.3 mAh g −1 , which is 41.5% higher than that of commercial ZnO (385.4 mAh g −1 ). Upon the current density reverting to 0.2 C, it regained 96.6% of its original capacity, indicating remarkable reversibility. Post-cycling scanning electron microscopy images validated the successful inhibition of zinc dendrite proliferation. The performance improvements arise from the synergistic combination of the protective ZnS layer, the interconnected conductive carbon framework, and the advantageous ZnO/ZnS heterointerface, which collectively boost structural stability and charge transfer kinetics.
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JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
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2026
·Vol. 37
·期 23
·1820
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IF 3.2
Liu Yuhao,Zhang Junjie,Liu Hongli,Cai Yani,Chu Peng,Guo Lei,Ma Yongshuai,Yan Jifeng,Guo Xiang,Zhao Weixu
Microwave absorption materials play a vital role in electromagnetic compatibility applications, where electromagnetic coupling between dielectric and magnetic components is crucial. However, in most reported systems, the magnetic loss capability is generally weaker than dielectric loss. To address this issue and achieve ultra-high loading of magnetic particles, concave SiC fibers were designed and fabricated via electrospinning, providing abundant active sites and enhanced surface curvature for effective deposition of magnetic components.Fe 3 O 4 nanoparticles were in situ grown on SiC fibers via a hydrothermal method to prepare lightweight Fe 3 O 4 /SiC composite fiber microwave absorbers. Systematic investigations reveal that an appropriate Fe 3 O 4 loading uniformly covers the fiber surface, forming abundant heterointerfaces and enhancing dielectric and magnetic loss.Query A high Fe 3 O 4 loading of up to 90 wt% was successfully achieved in the composite system.The Fe 3 O 4 -1:2 sample achieves a minimum reflection loss (RLmin) of−40.62 dB at 6.95 GHz with a 4.0 mm thickness, effectively absorbing over 99.99% of incident electromagnetic waves and exhibiting a wide absorption bandwidth. These results indicate that the synergistic dielectric–magnetic loss and multi-interface polarization mechanisms significantly improve electromagnetic wave absorption, providing a promising strategy for designing lightweight, high-performance ceramic-based absorbers.
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ChemSusChem
·
2026
·Vol. 19
·期 16
·e70968
·
IF 5.9
Hengyi Zhang,Piyu Gong,Yi Du,Linxiu Dai,Changhua An
Lithium oxalate (Li 2 C 2 O 4 ) is a promising cathode prelithiation reagent but suffers from a high activation voltage (>4.6 V). Herein, we establish a component–electronic structure–activity correlation by constructing a series of transition metal-loaded N,S co-doped carbon catalysts (M/NSC, M = Fe, Co, Ni, Ru, Rh, Ir). Distinct catalytic behaviors originate from metal-dependent electronic structures and their interactions with N/S co-doped carbon. Interestingly, the Fe-group metals exhibit stronger electronic coupling and higher redox flexibility than 4d/5d noble metals, resulting in more effective activation of Li 2 C 2 O 4 . The Co/NSC achieves the lowest decomposition voltage (4.17 V), attributed to uniform Co dispersion, optimized Co–N/S coordination, and defect-induced charge-transfer enhancement. The Co/NSC–Li 2 C 2 O 4 composite ensures nearly complete decomposition and delivers superior prelithiation performance. When applied to commercial LFP and NCM9055 cathodes, the Gr|| LiFePO 4 system shows a 22% capacity increase, meanwhile the Gr/SiC||NCM9055 cell achieves an initial coulombic efficiency (ICE) enhancement from 77% to 85.6%. This work highlights electronic–structure engineering as an effective strategy for enabling practical lithium compensation in high-energy lithium-ion batteries. Graphical Unlocking the structure–activity relationship of Li 2 C 2 O 4 prelithiation: uniformly dispersed Co nanoparticles on N,S co-doped carbon creates abundant active sites, Co–N/Co–S coordination modulates electronic structure, and defect-rich carbon ensures fast charge transfer. These structural advantages reduce decomposition voltage to 4.17 V and exhibit a capacity enhancement of 22%.
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JOURNAL OF ALLOYS AND COMPOUNDS
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2026
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IF 6.7
Shuhao Sun,Beibei Cai,Rui Tian,Junjie Xu,Dongying Wang,Lei Zhang,Fei He
Visible-light-driven photocatalysis offers a sustainable strategy to eliminate indoor volatile organic compounds (VOCs) like acetaldehyde (AA), thereby improving indoor air quality. Although heterojunctions based on MoS 2 quantum dots (MQDs) attract attention for oxidation reactions, MQDs/WO 3 composites for VOC removal remain largely underexplored. In this study, MQDs/WO 3 heterojunctions were constructed by coupling MQDs with monoclinic (m-WO 3 ) and hexagonal (h-WO 3 ) phases to systematically investigate phase-dependent charge transfer, reactive oxygen species (ROS) generation, and AA degradation pathways. Comprehensive characterizations indicated that MQDs incorporation increased oxygen vacancies, promoted ROS generation, and enhanced visible-light absorption. Furthermore, PL and in situ DRIFTS analyses revealed that MQDs/m-WO 3 exhibited superior electron-hole separation and stronger surface reactivity than the h-WO 3 system. DFT calculations confirmed MQDs as the primary adsorption sites for indoor VOCs, with MQDs/m-WO 3 exhibiting stronger AA adsorption. Consequently, the optimized 0.5MQDs/m-WO 3 demonstrated enhanced AA degradation and mineralization under visible light, exhibiting excellent stability under indoor-relevant operating conditions. This work provides profound insights into interface-regulated charge transfer and offers a promising material design strategy for advanced indoor air purification.
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JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
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2026
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IF 4.1
Yu Wang,Qiushuo Cheng,Ting Zhang,Lei Lü,Haixia Ma
The pyrolysis of energetic materials (EMs) directly determines their combustion performance and energy release efficiency. This study designed a potassium-doped maghemite (KF) catalyst with sea urchin-like structure. Traditional lead-based catalyst could cause serious environmental pollution, whereas KF may offer dual advantages of flame suppression and high catalytic activity. Electron paramagnetic resonance (EPR) spectroscopy demonstrate the increased defect concentration compared with commercial γ-Fe 2 O 3 and α-Fe 2 O 3 . The as-prepared KF catalyst provides more surface active sites, significantly enhancing its catalytic performance for the thermal decomposition of hexanitrohexaazaisowurtzitane (CL-20). Graphene oxide (GO) always acts as a stabilizer for EMs due to the excellent mechanical properties. Hence, K-γ-Fe 2 O 3 /reduced graphene oxide (KFG) was prepared via the one-step solvothermal method. Experimental results show that the ternary KFG composite can lower both the initial decomposition temperature and the apparent activation energy of CL-20. KFG accelerates the decomposition process of CL-20 and narrows the distribution of gaseous products. This study reveals the synergistic mechanism among potassium, γ-Fe 2 O 3 , and graphene, providing new design strategy and theoretical foundation for highly efficient combustion catalysts applied in solid propellants.
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MICROCHIMICA ACTA
·
2026
·Vol. 193
·期 9
·635
·
IF 5.4
Wang Yu,Zhang Shumin,Shi Jiale,Wang Yuetong,Mao Yexuan,Dang Meng,Huang Xianqing,Song Lianjun,Zhang Xiya,Bu Tong
A novel fluorescent lateral flow assay (FLFA) based on a zirconium-based metal aggregation-induced emission luminogen framework (Zr-MAF) is reported for the highly sensitive detection of zearalenone (ZEN) in cereals. A carambola-like Zr-MAF with a high fluorescence quantum yield of 36.9% was synthesized via a hydrothermal method using Zr 4+ and 1,1,2,2-tetra(4-carboxylphenyl) ethylene (TCPE). The prepared Zr-MAF-labeled monoclonal antibody probe exhibited intense luminescence, robust stability, and high affinity toward ZEN, collectively contributing to a significant enhancement in detection sensitivity. Under optimal conditions, the Zr-MAF-FLFA achieved an ultralow detection limit (IC 10 = 0.014 ng/mL) and a sensitivity (IC 50 ) of 0.046 ng/mL, representing a 2.6-fold improvement over traditional gold nanoparticles-based FLFA. Notably, the assay exhibited significant cross-reactivity only with the ZEN homologues α-ZAL, β-ZAL, and β-ZOL, which shared similar electrostatic potentials and substantial 2D molecular similarities with ZEN. Furthermore, the proposed method was successfully applied to real food matrices, including flour, glutinous rice, sweet corn, and glutinous corn, yielding satisfactory recoveries ranging from 85.37% to 106.42%. With detection limits in these food samples (0.68-0.78 µg/kg) falling well below national regulatory limits, this work provides a robust analytical platform for trace mycotoxin monitoring in food safety. Graphical abstract
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IRANIAN POLYMER JOURNAL
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2026
·
IF 2.9
Fu Xingqin,Li Tiantian,Fu Wei,Wang Yongji,Wang Liangying,Hao Chengwei,Jin Juncheng
Antibiotic residues have drawn global attention due to its potential risks of drug resistance, allergic reactions and cancer induction. Developing highly sensitive and efficient adsorbents for the detection and adsorption of antibiotics is significantly important. Hence, a novel quantum carbon dots-doped hydrogel (CQDs-DAH) using methacryloyloxyethyltrimethyl ammonium chloride (DMC), acrylamide (AM) and carbon quantum dots (CQDs) was prepared for simultaneous detection and adsorption of sulfisoxazole (SSX). The morphological structure and chemical composition of CQDs-DAH were thoroughly characterized. Remarkably, the hydrogel exhibited excellent selectivity and sensitivity toward SSX, achieving a low detection limit of 3.5 × 10 −4 mg/L and a linear detection range of 0–0.385 mg/L. Additionally, CQDs-DAH demonstrated exceptional adsorption performance in a solution with an initial SSX concentration of 50 mg/L, with a maximum capacity of 36.46 mg/g within just 20 min, following the Temkin isotherm and pseudo-second-order kinetic model. Thermodynamic analysis further revealed that the adsorption process was endothermic in nature. Furthermore, the mechanism underlying the adsorption and detection of SSX by CQDs-DAH was elucidated. CQDs-DAH offered a combination of rapid kinetics, high sensitivity, and dual functionality. This study provides valuable insights into the production of multifunctional adsorbents for the sensitive detection and efficient adsorption of SSX.
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ANALYTICAL AND BIOANALYTICAL CHEMISTRY
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2026
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IF 4.1
Wei Ruxia,Sheng Wei,Chen Shengyu,Zheng Yiwei,Li Xu,Feng Na,Luo Yanni,Tan Xuecai,Huang Ke-Jing
The development of highly sensitive and selective platforms for trace Zn 2+ detection is crucial for environmental monitoring and biomedical diagnostics. Herein, a photoelectrochemical (PEC) sensor was constructed using an L-cysteine (L-Cys)-functionalized BiOBr composite, in which surface-interface engineering was adopted to enrich available recognition sites and modulate the interfacial PEC response. Compared with pristine BiOBr, the incorporation of L-Cys introduces abundant Zn 2+ binding functional groups and modifies the local surface environment of BiOBr, thereby enhancing the photocurrent response and enabling the selective recognition of Zn 2+ . The sensor operates through a signal-off mechanism, in which the coordination of Zn 2+ with surface-bound L-Cys forms an interfacial coordination layer that partially hinders mass transport and interfacial charge transfer, resulting in a decrease in photocurrent. Under optimized conditions, the platform exhibits a wide linear response ranging from 0.5 to 40 nmol/L, with a low detection limit of 2.69 nmol/L ( S / N = 3). Furthermore, the applicability of the sensor is validated in real-world scenarios, demonstrating excellent recoveries in tap water, lake water, and complex biological matrices such as HepG2 cell lysates (recoveries, 96.3–108.5%). This work provides a robust strategy for engineering bio-semiconductor interfaces for the detection of essential metal ions in complicated samples.
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ACS Applied Polymer Materials
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2026
·
IF 5.2
Dongyang Ye,Min Gong,Liancong Yue,Hejinglong Zhang,You Wu,Sen Kang,Zhen Wu,Liang Zhang,Xiang Lin,Fengxian Gao,Dongrui Wang
Developing flexible bioelectronics that seamlessly integrate with human skin requires materials that are not only soft and conductive but also biocompatible and sustainable. Silk fibroin (SF), a natural protein with inherent biocompatibility and hierarchical structure, holds promise for such applications, yet its mechanical properties are mismatched with soft biological tissues, and it lacks intrinsic conductivity, limiting its standalone use. Inspired by nature’s use of Ca2+ for both structural reinforcement and signal transduction, we report a green supramolecular hydrogel built upon SF as the core component, combined with poly(vinyl alcohol) (PVA) and Ca2+ via a one-step freeze–thaw method. Density functional theory (DFT) calculations confirm that the three components engage in extensive noncovalent interactions, including hydrogen bonding, ionic coordination, and van der Waals forces, collectively constructing a stable yet dynamic cross-linked network. Within this network, Ca2+ functions both as a dynamic cross-linker to enhance mechanical properties and as a charge carrier to enable ionic conduction. The resulting hydrogel exhibits an exceptional combination of skin-like mechanical properties, with a Young’s modulus of 0.114 MPa, a tensile strength of 0.408 MPa, and an elongation at break of 407%. It also features a high ionic conductivity of 2.330 S/m, rapid self-healing, broad adhesion to diverse substrates, and excellent biocompatibility, with cell viability exceeding 80% at concentrations of 0.78–25 mg/mL. When employed as a flexible electrode, the hydrogel enables high-fidelity, real-time monitoring of human electrocardiogram and electromyogram signals, with signal intensity closely correlated to physiological activity. This work presents a bioinspired strategy for developing high-performance and biocompatible sensing materials, advancing the frontier of wearable health monitoring and human–machine interfaces.
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ACS Photonics
·
2026
·
IF 6
Shuangyifei Liu,Yujie Cao,Huiying Ma,Chong Geng,Shu Xu
Colloidal zinc oxide quantum dots (ZnO CQDs) are key material for solution-processed optoelectronics, but their performance is severely limited by high intrinsic defect densities. Here, we report a low-temperature organometallic synthesis approach that achieves layer-by-layer growth of low-defect ZnO CQDs through cyclic amidation reactions. This method enables precise control over growth kinetics, yielding ZnO and ZnO: Al CQDs with strong excitonic UV emission and near-complete suppression of deep-level defect emission. When implemented in UV photodetectors, these low-defect CQDs deliver devices with ultralow dark current, responsivity of 5 A·W–1, subsecond response times, and a high detectivity of 2.6 × 1013 Jones, outperforming conventional ZnO CQD-based devices. This work provides critical insights into the design and synthesis of low-defect, size-controlled ZnO CQDs, paving the way for their application in optoelectronic devices.
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ACS Applied Materials & Interfaces
·
2026
·
IF 7.8
Chengjie Sun,Yixin Luo,Mo Qiu,Qingxin Guan,Ruitong Ma,Zilu Zhang,Feng Shen,Shizhou Shen,Jirui Yang,Wei Li
Insufficient synergy between hydrolysis and hydrogenation seriously hinders the efficient conversion of insoluble cellulose in biomass utilization. Herein, using tobacco straw-derived lignin to prepare ordered mesoporous carbon (OMC), we report a complex-mediated strategy for constructing a Ni–P–O@NixP/OMC catalyst with tailored P–C–O doped sites and Niδ+–P–Oδ− frustrated Lewis pairs (FLPs). Characterizations and DFT results indicate that the P–C–O sites in a P/O-doped OMC support promote H2O adsorption and polarization, accelerating H3O+ generation for enhanced cellulose hydrolysis. Simultaneously, the Niδ+–P–Oδ− FLPs on the NixP surface promote H2 heterolysis and H2O dissociation, generating highly active Hδ+/Hδ– and H3O+ species that synergistically enhance hydrolysis and hydrogenation. Benefiting from the spatial coupling of hydrolysis and hydrogenation at the atomic scale, the prepared catalyst achieves an 80% sorbitol yield from cellulose in water at a low Ni loading of 4.5 wt %, along with satisfactory cycling stability. Increasing the Ni content to 8.0 wt % further raises the sorbitol yield to 89.5%, outperforming most reported noble-metal-based catalysts. Finally, a sorbitol yield in excess of 90% is obtained by using the residue after lignin extraction as the substrate. This work establishes a design paradigm for efficient cascade biomass conversion by creating atomic-scale P–C–O sites and Niδ+–P–Oδ− FLPs that enable spatially coupled hydrolysis and hydrogenation through tailored electronic structures.
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JOURNAL OF MATERIALS SCIENCE
·
2026
·
IF 4.4
Zhang Han,Xu Chun,Xu Meng,Yuan Yan,Liu Jie,Dong Yanmao,Jiang Li
Self-healing anticorrosive coatings are essential for extending the lifespan of metallic materials in aggressive environments. This study presents a novel sandwich-structured coating composed of a polydopamine (PDA) inner layer, a ZIF-67 electroplated interlayer, and MXene/CNTs fillers incorporated into a waterborne acrylic epoxy (EA) matrix. The PDA layer enhances adhesion, while the ZIF-67 interlayer functions as an active inhibitor reservoir that responds to pH changes, releasing Co 2+ and 2-methylimidazole to promote defect repassivation and self-healing. The outer MXene/CNTs layer significantly improves barrier properties by forming a tortuous path for corrosive agents and enhancing interfacial stability. Compared with single-component coatings, the sandwich-structured composite coating exhibited markedly enhanced corrosion resistance in harsh acidic environment, with an obvious increase in corrosion potential. Moreover, a high R ct value of 1.79 × 10 5 Ω cm 2 was maintained by this coating even after 30 days of service, evidencing its durable protection. Under scratched conditions, the coating exhibits efficient self-healing, recovering its impedance and repassivating defects. This work demonstrates the synergistic benefits of the PDA/ZIF-67/MXene system, offering an effective solution for long-term corrosion protection with self-healing properties, suitable for various engineering applications.
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