JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION
·
2026
·Vol. 41
·期 2
·353-363
·
IF 1.4
Yan Ming,Deng Yuxiao,Yan Zhuanlong,Li Hongyu,Cao Mengyang
This study reported the synthesis of magnetic solid solutions V 2 (A x B y Sn 1− x − y )C (where A and B are Mn, Fe, or Co) MAX phases. These materials were prepared by incorporating magnetic elements into the V 2 SnC MAX phase via pressure-less sintering at 1 000 °C for 3 hours. XRD analysis reveals that the composition with x = y = 0.2 exhibits a shift of diffraction peaks to higher angles, indicating lattice parameter changes, and achieves the highest phase purity with the maximum solid solution limit, further increases in the dopant content led to the formation of impurities. While the solid solution of magnetic elements preserves the characteristic layered structure of the MAX phase, it successfully induces magnetic properties. The magnetic transition temperatures for these solid solutions ranges from 61 to 200 K. Specifically, V 2 (Mn x Co y Sn 1− x − y )C demonstrated hard magnetic characteristics, with a high saturation magnetization (6.536 emu/g) and large remanence (4.236 emu/g). In contrast, V 2 (Mn x Fe y Sn 1− x − y )C and V 2 (Fe x Co y Sn 1− x − y )C exhibits soft magnetic behavior, evidenced by their narrow hysteresis loops and low coercivity. Their saturation magnetization values are 3.80 and 1.784 emu/g, respectively. The distinctly “S”-shaped hysteresis loop of V 2 (Fe x Co y Sn 1− x − y )C further confirms its soft magnetic nature.
✓ 已验证
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2026
·
IF 5.4
Yingying Yang,Shuang Tian,Zehao Huang,Xuyang Lu,Chunxiao Lan,Yuelu Li,Jiacheng Zhang,Lijie Huang,Chongxing Huang,Hui Zhao,Qingshan Duan
To address the issues of energy-consuming fabrication, poor mechanical properties, and low sensing sensitivity of conventional hydrogel sensors, this study reports the development of an iron-tannic acid (Fe-TA)-mediated autocatalytic strategy for the rapid construction of “covalent-ionic” dual-crosslinked cellulose-based hydrogels. This system spontaneously generates radicals at room temperature through the redox cycle of Fe-TA and ammonium persulfate, driving the polymerization of carboxymethyl cellulose (CMC) with acrylamide to achieve ultrafast in-situ formation of the hydrogel within 119 s. By introducing carboxylated cellulose nanofibers (CCNFs) and utilizing Fe 3 + ion coordination, a dual-crosslinked network hydrogel (denoted as CAMFFE hydrogel) was constructed, leading to markedly improved mechanical properties with a compressive strength of 386 kPa and an elongation at break of 528%. Benefiting from the multifunctional integration of Fe 3+ (catalysis, crosslinking, and conductivity), this hydrogel strain sensor exhibits high sensitivity with a gauge factor (GF) ranging from 1.46 to 4.16, and rapid response (0.3 s) and recovery (0.5 s) over the strain range of 0–500%, along with strong adhesion to substrates such as wood and skin (up to 85.7 kPa). The study further demonstrates its versatile applications in human motion monitoring and wireless handwritten recognition, providing new materials and valuable design insights for the development of high-performance, sustainable flexible electronic devices.
✓ 已验证
DOI
高影响因子
JOURNAL OF CHROMATOGRAPHY A
·
2026
·
IF 4
Ke-Rong Wang,Yu-Fei Bai,Xiao-Ye Chang,Yun-Kai Lv,Li-Qing Yu
A one-pot PEG-modified MIL-88B(Fe) coating was developed for breath aldehydes. • The 10% PEG/Fe³⁺ ratio gave the highest responses for all five aldehydes. • Detection limits were 0.018–0.030 ng mL⁻¹ with precision below 10%. • The coating retained 87.9–93.9% response after 110 extraction cycles. A polyethylene glycol (PEG)-modified MIL-88B(Fe) composite was synthesized by a one-pot route and evaluated as a coating for headspace solid-phase microextraction (HS-SPME) coupled with gas chromatography–mass spectrometry (GC–MS) for the determination of five C6–C10 aldehydes. Among the materials prepared at PEG/Fe 3+ molar ratios of 0, 5, 10, and 15%, PEG 10 @MIL-88B(Fe) produced the highest peak areas for all five aldehydes. Characterization by powder X-ray diffraction, Fourier-transform infrared spectroscopy, scanning electron microscopy, thermogravimetric analysis, X-ray photoelectron spectroscopy, and N 2 adsorption–desorption analysis supported PEG modification while retaining the structural characteristics of MIL-88B(Fe). Under the optimized conditions, the developed method provided enrichment factors of 2563–15,562. Calibration curves were linear over 0.1–500 ng mL –1 (R 2 = 0.9911–0.9988), with LODs of 0.018–0.030 and LOQs of 0.059–0.099 ng mL –1 of calibration solution (liquid-standard-equivalent). Intra-day, inter-day, fiber-to-fiber, and batch-to-batch RSDs were 3.9–5.9%, 4.2–8.2%, 4.0–9.8%, and 5.3–10.1%, respectively. The method showed limited interference from representative breath volatile organic compounds, with relative responses of 89.30–92.02%, while matrix effects ranged from 94.7% to 104.1%. After 110 extraction/desorption cycles, the coating retained 87.9–93.9% of its initial response. The PEG 10 @MIL-88B(Fe)-coated SPME fiber was applied to exhaled-breath samples, with spike recoveries of 87.2–105.5%, supporting its applicability to the trace determination of C6–C10 aldehydes in exhaled breath. Download: Download high-res image (309KB) Download: Download full-size image
✓ 已验证
DOI
高影响因子
Small
·
2026
·
IF 11.8
Peng Wang,Chenyu Gao,Zhaoying Li,Dianming Chu,Wenjuan Bai,Yan He
Solid-solution catalysts hold great promise as low-cost catalysts for the growth of small-diameter single-walled carbon nanotubes (SWCNTs); however, their catalytic performance is limited by low metal-site utilization and unfavorable interfacial structures in conventional architectures. Here, we report a facile design strategy for FeMgAlOx solid-solution catalysts featuring abundant active sites and enhanced interfacial structures that suppress nanocluster agglomeration. The successful synthesis of this catalyst relies on a high-temperature-induced two-step strategy: high-temperature oxidation enhances crystallinity, while high-temperature air/CO 2 treatment facilitates the formation of strong metal-support interactions (SMSI) on inert metal oxide supports. In this architecture, the ultrathin two-dimensional morphology and ordered atomic arrangement promote active-metal spillover, yielding abundant active sites; meanwhile, CO 2 induction significantly enhances the SMSI-mediated confinement capability for Fe nanoclusters. Crystalline evolution and SMSI regulation synergistically facilitate the exsolution of active Fe species from the bulk solid solution, thereby forming thermally stable Fe nanoclusters. Furthermore, optimized single-walled carbon nanotube (SWCNT) growth kinetics confirm that the modified solid solution possesses both a higher density of active sites and enhanced intrinsic catalytic activity. Ultimately, our catalyst enables the growth of SWCNTs with diameters ranging from 0.96 to 3.33 nm, offering a simple and low-cost route for SWCNT synthesis with broad application prospects.
✓ 已验证
DOI
高影响因子
ChemistrySelect
·
2025
·Vol. 10
·期 23
·e00337
·
IF 2
Jingjing Yang,Xiayan Zhang,Zhi Song,Jialu Liu,Yeqiong Huang,Dongxu Han,Chuhan Xing,Jing Zhang,Boxia Liu
Graphical The Ni 3 Fe 1 -BC composite, featuring a coral-like mesoporous architecture and exposed Ni 2+ /Fe 3+ active sites, facilitates the rapid, monolayer adsorption of methyl blue through strong Ni─O coordination. The process follows Langmuir isotherm and pseudo-second-order kinetics, indicating high affinity and thermodynamic spontaneity. In this paper, the coral-like structure of Ni/Fe bimetallic atom cluster composite adsorbent (Ni 3 Fe 1 -BC) was utilized for the efficient removal of methyl blue (MB), and a removal rate of 98% could be achieved within 25 min. The large specific surface area and mesoporous structure of the material provide effective channels for the diffusion and adsorption of MB molecules. Ni 2+ and Fe 3+ species act as key adsorption sites during the adsorption process, especially when the oxygen atoms in MB first interact with Ni atoms to form a stable chemical bond, which enhances the stability of adsorption. Meanwhile, the adsorption process conformed to the pseudo-secondary kinetic model, and the isotherm analysis showed that the Langmuir model fitted better, reflecting the monolayer adsorption characteristics. The adsorption energy E ads = −2.04 eV further proved that the adsorption process was spontaneous and exothermic with good thermodynamic stability. In addition, Ni 3 Fe 1 -BC exhibits excellent adaptability and cyclic stability in different water environments, making it an efficient and stable adsorbent for water treatment.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
·
2025
·
IF 1.6
Feng Zihao,Wang Yang,Ren Qi,Yi Cui,Li Yang,Du Yanjun,Wang Changfu,Wang Yun
Effective U(VI) separation from uranium wastewater is crucial for nuclear energy's sustainable growth. A magnetic, cauliflower-shaped magnesium-iron bimetallic oxide loaded biochar (MFBC) was fabricated via a green hydrothermal co-pyrolysis. Its U(VI) adsorption process was pH-dependent and fitting Langmuir–Freundlich and pseudo-second-order models, the theoretical maximum adsorption capacity of U(VI) by MFBC peaked at 1354.8 mg·g −1 (pH 5.0, 30 min). After five regenerations, 90.3% removal remained. The adsorption mechanism of MFBC for U(VI) involved electrostatic interaction, surface complexation, ion exchange and reduction reaction, making it a highly efficient and excellent adsorbent for treating uranium-containing wastewater.
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Rui Chen,Qianru Zhao,Bohan Jia,Zhenyong Wang,Yucang Du,Jinsuo Lu
While Fe-based amorphous alloys exhibit remarkable pollutant degradation capabilities, their synergistic application with peroxymonosulfate (PMS) in ultrafiltration (UF) systems remains underexplored. This study investigated the novel Fe 92 B 6 Si 2 /PMS pretreatment system that significantly enhanced UF performance, with normalized flux (J/J₀) increasing from 0.28 to 0.93 LMH. The formation of a loose and porous cake layer led to significant reductions in reversible and irreversible resistances by 80.26% and 65.89%, respectively. It achieved significant NOM removal, with DOC and UV₂₅₄ reductions of 78.32% and 50.37%, respectively. Parallel factor analysis combined with self-organizing maps confirmed the effective removal of both humic-like and protein-like substances. Size exclusion chromatography and Fourier transform ion cyclotron resonance mass spectrometry further revealed the breakdown of high molecular weight organics into smaller fragments, with an 11.79% increase in low MW compounds (< 0.85 kDa). The oxidation process preferentially removed low-oxygen molecules (O/C < 0.6), generating high-oxygen compounds enriched with nitrogen and sulfur, such as tannins and condensed hydrocarbons. The high reactivity and self-renewing surface of Fe₉₂B₆Si₂, coupled with the Fe 2+ /Fe 3+ redox cycle, ensured continuous generation of SO₄• − and •OH radicals, effectively promoting pollutant degradation and membrane fouling mitigation. Moreover, the system maintained high degradation efficiency, stability, and safety over five cycles. These findings demonstrate the potential of Fe₉₂B₆Si₂/PMS as a promising UF pretreatment strategy to enhance water treatment efficiency.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
·
2025
·
IF 3
Zhihui Xu,Jing Li,Xiaoling Peng,Shan Tao,Jingcai Xu,Bo Hong,Xinqing Wang
The present study utilized Y 3 Fe 5 O 12 (YIG) ferrites as a coating on Fe-Si-B-Cu-Zr nanocrystalline magnetic powder to fabricate soft magnetic composites (SMCs). The influence of YIG content and annealing temperature on the magnetic properties of Fe-Si-B-Cu-Zr/YIG SMCs was investigated. It was revealed that an appropriate amount of YIG in the composite could enhance the permeability and its resistance to DC bias, while reducing eddy current loss. The results demonstrated that the Fe-Si-B-Cu-Zr/YIG SMCs coated with 1.0 wt% YIG exhibited good comprehensive magnetic properties, with a permeability of 33.8, 86.1 % retention under a DC bias of 100 Oe, and a 53.1 % reduction in eddy current loss to 13.86 mW/cm 3 at 500 kHz and 10 mT. Besides, the optimal annealing temperature for achieving decrease core loss and maximum permeability was determined to be 500℃ for the Fe-Si-B-Cu-Zr/YIG SMCs. This study demonstrates a promising coating material to enhance the high-frequency magnetic properties of nanocrystalline soft magnetic composite.
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Yuanjie Zhang,Zhongguo Wang,Yueyang Huo,Xiuping Ju,Kai Liu,Wenjun Kang,Peng Zhang,Zongge Li,Haibo Li
The development of high-performance non-noble metal catalysts for the oxygen reduction reaction (ORR) is critical for advancing electrochemical energy conversion devices. Herein, a series of Fe 1 NC-VX catalysts (X = 1, 3, 5) were synthesized via a two-step process involving solvothermal polymerization of formamide with Fe 3+ and V 5+ salts, followed by pyrolysis under N 2 atmosphere, where the content of vanadium nitride (VN) nanoparticles was regulated by adjusting the V precursor concentration. Physicochemical characterizations confirmed that Fe exists as atomically dispersed Fe N 4 sites, while VN nanoparticles are formed in V-doped samples, with Fe 1 NC-V3 exhibiting optimal Fe V synergistic interactions and a reduced Fe oxidation state. Electrochemical evaluations in 0.1 M KOH showed that Fe 1 NC-V3 delivers superior ORR activity with an onset potential of 1.02 V, half-wave potential of 0.89 V, a dominant 4-electron transfer pathway, and a low Tafel slope of 55.4 mV dec −1 , outperforming commercial Pt/C. It also exhibits excellent methanol tolerance and durability. Density functional theory (DFT) calculations revealed that VN modulates the electronic structure of Fe N 4 sites via a d -band center downshift, optimizing intermediate adsorption and reducing the rate-determining step overpotential to 0.58 eV. In practical zinc-air batteries (ZABs), Fe 1 NC-V3-based ZAB achieved a high open-circuit voltage (1.578 V), peak power density (214.1 mW cm −2 ), specific capacity (813.8 mAh g Zn − 1 ), and exceptional cycling stability. These findings demonstrate that Fe 1 NC-V3 is a competitive noble metal substitute for efficient electrochemical energy conversion.
✓ 已验证
产品关联
DOI
高影响因子
MATERIALS LETTERS
·
2025
·
IF 2.7
Yueyue Sun,Jiaming Yang,Zhengrong Liu,Chaofan Yin,Zixuan Xue,Zilin Zhou,Qiankai Zhang,Jiajia Cui,Jun Zhou,Kai Wu
Solid oxide fuel cells (SOFCs) are a promising energy conversion technology with high efficiency and environmental compatibility. Applied as anode materials, perovskite oxides govern the electrochemical performance, with an exsolution strategy for enhancing catalytic activity. In this work, Sr 2 Fe 1.5 Mo 0.5 O 6-δ exhibits an A-site deficient surface enriched with Sr and O vacancies via the acid etching method, thereby exposing B-site cations and facilitating the nucleation process during exsolution. The optimized Fe nanoparticles distribution enhances the H 2 adsorption and H 2 O desorption, resulting in a 25 % increase of the peak power density to 1.04 W cm −2 from 0.83 W cm −2 at 800 °C. The ingenious design of surface reconstruction demonstrates significant potential in advancing perovskite-based electrocatalysts for SOFCs.
✓ 已验证
产品关联
DOI
高影响因子
Nature Communications
·
2026
·Vol. 17
·期 1
·1699
·
IF 15.7
Sui Huiting,Lou Wenhua,Xiao Shibing,He Jia,Wu Fuling,Liu Ying,Wei Jianbiao,Lu Haijie,Sun Huajun,Ma Xiaoguang,Zhang Shujun
Defect microstructures, particularly dislocations, are pivotal in determining the functional properties of ferroelectric thin films. While their density is routinely considered, the critical role of their spatial configuration has remained largely unexplored and difficult to control. Here, we develop a controlled self-assembly strategy for dislocations in Bi(Fe,Mn)O 3 thin films on Ni-Cr that directly addresses this challenge. By employing a LaNiO 3 buffer layer, we template a discontinuous-columnar grain structure and guide the self-assembly of edge dislocations along grain boundaries in a topologically-protected configuration. The resulting ordered microstructure promotes a more uniform strain field and more coherent FeO 6 octahedral tilting, significantly enhances polarization homogeneity, leading to a lower domain-switching barrier and a more uniform domain pinning effect. Consequently, the BFMO thin film exhibits dramatically superior aging stability after 60 days at 60 °C, exhibiting far smaller reductions in remanent polarization (~20%) and coercive field (~35%) compared to the BFMO thin film grown directly on Ni-Cr. These findings establish a defect engineering paradigm wherein the deliberate dislocation rearrangement is leveraged to unlock superior ferroelectric performance.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Surfaces and Interfaces
·
2026
·
IF 6
Jiayuan Zhang,Zhenlong Liu,Yu Liu,Liping Jiang,Caixia Ma,Lei Yang,Zunyuan Xie,Jizhen Li,Guofang Zhang
Transition metal oxides exhibit inherent catalytic activity for ammonium perchlorate (AP) decomposition; however, their performance is limited by the scarcity of accessible active sites and low conductivity. Therefore, morphology-directed structural design and interfacial engineering are highly desirable. In this study, two-dimensional (2D) MCo 2 O 4 nanosheets ( M = Fe, Ni, Cu, and Cr) were synthesized via a thermal expansion method and subsequently combined with three types of carbon materials C x (C x = rGO, CNTs, and g-C 3 N 4 ) to construct 2D MCo 2 O 4 /C x composites. Structural analyses demonstrate that the intimate interfacial coupling between 2D MCo 2 O 4 nanosheets and carbon materials effectively suppresses restacking and establishes a continuous conductive network. More importantly, strong interfacial coupling enables effective electronic modulation at the heterojunction, resulting in an optimized charge distribution and enhanced interfacial electron transfer. Among all catalysts, 5 wt. % FeCo 2 O 4 /rGO-1 demonstrates the most notable catalytic activity for AP decomposition, reducing its peak temperature in the high-temperature decomposition stage by 137.4 °C and increasing its heat release by 736.33 J·g⁻ 1 . Electrochemical tests confirm that accelerated interfacial charge transfer enhances AP pyrolysis. Kinetic modelling, TG-FTIR-MS, and DFT calculations indicate that the 2D-2D heterointerface boosts the adsorption of the AP intermediate NH 3 and promotes its conversion into higher-valence NO 2 , while also accelerating electron transport and lowering the decomposition barrier. The synergistic effect between interfacial electron transport and the heterojunction promotes the rapid AP degradation. Based on these findings, a plausible catalytic mechanism for AP decomposition is proposed.
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）