MATERIALS CHARACTERIZATION
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2026
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IF 6.2
Ehsan Ghasali,Hamidreza Ghadami Karder,Congya Zhu,Ayesha Sadiqa,Li Jie,Yasin Orooji
Novel Dy₂Ho₂Er₂Tm₂Yb₂O₁₅ high-entropy oxide successfully synthesized via conventional sintering. • Single-phase cubic bixbyite structure (Ia-3) formed across all sintering conditions. • Higher sintering time/temperature promoted grain growth, strain relaxation and homogeneity. • Bandgap narrowed to 4.45 eV due to high-entropy induced lattice distortion. characters). • Promising photoluminescence properties indicating potential photocatalytic activity. A bixbyite-structured rare-earth high-entropy oxide with the composition Yb₂Tm₂Er₂Dy₂Ho₂O₁₅ was synthesized by a conventional compaction–sintering route. The effects of sintering temperature and time on phase formation, microstructure, chemical homogeneity, and optical properties were systematically investigated. XRD confirmed the formation of a cubic bixbyite structure with the space group , while Williamson–Hall analysis indicated improved crystallinity and strain relaxation with increasing sintering severity. SEM/TEM observations and EDS mapping revealed progressive grain growth, densification, and homogeneous distribution of the constituent rare-earth elements. XPS results confirmed the predominance of trivalent rare-earth cations and a stable oxygen environment, with no major chemical-state changes after sintering. UV–Vis analysis showed a band gap of 4.45 eV, which is lower than those of the individual constituent oxides, suggesting that lattice distortion and compositional complexity influence the electronic structure. PL results further indicated reduced electron–hole recombination in the UV region. Overall, the results demonstrate that conventional compaction and sintering can produce chemically homogeneous bixbyite-type rare-earth HEOs with tunable microstructural and optical characteristics.
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INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
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2026
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IF 3.9
Shucheng Liu,Bo Wang,Ruiheng Lu,Hongxiang Ou,Xuan Zhang
Naringin (NRG) is a bioactive substance with important pharmaceutical and industrial value. However, the major challenges in the separation of NRG arise from the complexity and low concentration of crude extracts. In this work, by integrating the advantages of magnetic separation, MOFs@COFs composite materials, and surface molecular imprinting strategy, a new kind of magnetic MOF@COF-based boronate-affinity molecular imprinted adsorbent (NH2-MIL-68-Fe3O4@COFs@BA-MIPs) was constructed. Magnetic NH2-MIL-68 substrates were prepared by the solvothermal method, aldehyde-functionalized by surface modification with 2,4,6-triformylphloroglucinol (Tp). Then, a covalent organic framework shell was grown on the surface of substrates via the Schiff base reaction. Finally, a boronate-affinity imprinted polymer was prepared via surface-initiated atom transfer radical polymerization (SI-ATRP). The as-prepared adsorbent features rapid magnetic separation. In addition, the high-density boronate-imprinted recognition sites and porous structure endow the material with a fast adsorption rate (reaching equilibrium about 60 min), a high adsorption capacity (57.29 μmol g–1), and good retention performance (92.79%) after six adsorption–desorption cycles at 308 K under pH 8.0. Moreover, the extraction rate of crude NRG by NH2-MIL-68-Fe3O4@COFs@BA-MIPs reached 93.61%. This study provides a design strategy for constructing NRG adsorbents with rapid magnetic response and has important application value in the specific separation and purification of flavonoids.
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ACS Applied Energy Materials
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2026
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IF 5.5
Yuyu Ma,Yi Dong,Deng Li,Yi Cao,Yuqin Wang,Juhong Lian,Wei Yu,Ruibin Jiang,Junqing Yan,Shengzhong Liu,Shanshan Chen
Solar-driven CO2 conversion via photovoltaic-powered electrolysis offers a sustainable route for carbon utilization and renewable energy storage, yet its current output is still constrained by the low-value yield of the anodic reaction. Herein, we rationally designed a solar-compatible paired electrolysis system by coupling cathodic CO2 reduction reaction (CO2RR) with anodic off-field H2S oxidation reaction (OFSOR) mediated by the I3−/I− redox couple, enabling synchronous production of high-value formate and elemental sulfur with significantly reduced energy input. An acid-tolerant Bi-based metal−organic framework (Bi-MOF) precursor was fabricated and underwent in situ structural reconstruction to form Bi2O2CO3 as an active phase for CO2RR with a formate faradaic efficiency (FE) exceeding 90% over a wide current density range. In situ Raman spectroscopy confirmed the formation of key *HCOO− intermediates over the Bi2O2CO3, accounting for the superior formate selectivity. By coupling with the carbon cloth anode, a two-electrode CO2RR-OFSOR electrolyzer was assembled, delivering a current density of 50 mA/cm2 at a cell voltage of only 2.91 V and reducing cell voltage by 41% under the tested conditions as compared to the conventional CO2RR-OER configuration. Furthermore, a self-driven solar-powered photovoltaic-electrochemical device was established by directly powering the electrolyzer with commercial silicon photovoltaic cells, which steadily operates with formate FE above 90% and achieves a solar-to-chemical conversion efficiency of 4.6%. This work provides a promising and energy-efficient solar-driven integrated strategy for collaborative CO2 conversion and H2S resource utilization, highlighting the potential of hybrid electrolysis systems in sustainable electrosynthesis.
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Materials
·
2026
·Vol. 19
·期 14
·2977
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IF 3.7
Anjie Qi,Yunjia Liang,Bingjie Ge,Guodong Jiang,Shanglin Xiang,Dongyu Cai
HighlightsDeveloped a self-catalytic water/castor oil system for PET depolymerization.Achieved spontaneous precipitation of oligoesters without cooling crystallization.Upcycled the oligoesters into polyurethane adhesives with high peel strength.This study presents a green approach for polyethylene terephthalate (PET) upcycling using a biphasic system of subcritical water and castor oil. This system enables efficient conversion without an external catalyst and facilitates product separation. Hydrolysis of castor oil generates fatty acids in situ, which catalyze PET conversion to selectively produce low-molecular-weight oligoesters (Mn ≈ 1500 g/mol). These oligoesters are inherently immiscible with the bio-medium at room temperature, allowing straightforward separation by centrifugation. Orthogonal experiments show that temperature is the dominant factor affecting PET conversion, with the optimal conditions being 200 °C, a water-to-oil mass ratio of 1:5, and a reaction time of 10 h for complete conversion. Under the practical optimum condition, the castor oil phase remained highly effective over five consecutive depolymerization cycles. The functionalized oligoesters were used in polyurethane synthesis. At 6% loading, they gave adhesives with a T-peel strength of 8.09 N/15 mm and tensile strength of 25.14 MPa, and excellent damp-heat stability (only 0.62% loss in T-peel and 0.47% in 180° peel after aging). Thermogravimetric analysis confirmed enhanced thermal stability, with increases of 19.52 °C in T5%and 16.50 °C in T50%compared with the unmodified system. These results demonstrate the practical potential of the obtained oligoesters in high value adhesive applications.
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PubMed
高影响因子
JOURNAL OF FLUORESCENCE
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2026
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IF 3.4
Liang Tianmi,Liu Shijian,Ma Wenjin,Tao Xiaoqi
Colla Corii Asini ( CCA ), a traditional food-medicine product, is vulnerable to food safety and market integrity due to frequent adulteration. This study developed a lateral flow assay based on polyethylenimine-functionalized europium metal-organic frameworks (PEI-Eu-MOFs-LFA) for quantitatively detecting donkey DNA to assess the authenticity of CCA , without the need for knowing the types of adulterants. The protonated amino groups on the PEI‑Eu-MOFs surface formed stable complexes with negatively charged single‑stranded DNA (ssDNA) probes. Electrostatic attraction and hydrogen bonding facilitated conjugate formation, leading to fluorescence quenching of the PEI-Eu-MOFs via the inner-filter effect (IFE). This method enables direct analysis after DNA extraction, eliminating the need for additional nucleic acid amplification steps, and completes the entire process in just 60 min. Furthermore, a calibration curve was established between the T/C ratio and the logarithmic value of donkey hide content (2% to 100%). The PEI-Eu-MOFs-LFA exhibited excellent sensitivity and accuracy, with a detection limit of 1.86%, recoveries ranging from 85.70% to 114.63%, and relative standard deviations from 2.48% to 12.59%. Consequently, PEI-Eu-MOFs-LFA demonstrates high sensitivity and accuracy, significantly improving detection efficiency and providing an innovative approach for quality control and market regulation of CCA .
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APPLIED CATALYSIS A-GENERAL
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2026
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IF 4.8
Xinyue Chen,Binjian Chen,Yudong Mao,Min Yan,Zhihao Liu,Yuxuan Jiang,Xianqun Jin
FeNiP-CeO 2 /NF heterostructure is designed for efficient oxygen evolution reaction. • Superior OER activity: 231, 304, 390 mV at 100, 500, 1000 mA·cm −2 . • Performance optimized by heterostructure design and interfacial synergistic effect. • The catalyst exhibits outstanding long-term stability of 200 h at 500 mA·cm −2 . Developing efficient and durable non-noble-metal electrocatalysts for the oxygen evolution reaction under industrially relevant conditions remains a significant challenge. Herein, a heterostructured FeNiP-CeO 2 /NF electrocatalyst was rationally designed and synthesized via a two-step hydrothermal–phosphidation strategy. The resulting catalyst features hierarchically assembled FeNiP nanosheets intimately coupled with oxygen-vacancy-rich CeO 2 nanoparticles, forming abundant heterointerfaces. Benefiting from the synergistic interaction between bimetallic Fe–Ni phosphide active sites and CeO 2 -induced interfacial charge redistribution, FeNiP-CeO 2 /NF exhibits markedly enhanced OER activity in alkaline media, delivering low overpotentials of 231, 304, and 390 mV at current densities of 100, 500, and 1000 mA cm −2 , respectively. In addition, the catalyst demonstrates excellent long-term durability, maintaining stable operation for 200 h at 500 mA cm −2 with a Faradaic efficiency of 99.3%. This work demonstrates that rational heterointerface engineering combined with hierarchical structural design is an effective strategy for constructing highly active and robust OER electrocatalysts, highlighting the promising potential of FeNiP-CeO 2 /NF for industrial water electrolysis applications. Download: Download high-res image (256KB) Download: Download full-size image
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Surfaces and Interfaces
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2026
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IF 6
Shiyang Fu,Yuqing Shi,Guowei Yu,Xiao Liang,Nan Gao,Jing Zhang
Co 3 O 4 /Fe 2 O 3 p–n heterojunctions were prepared hydrothermally. • CF-5 shows a 5.6-fold response at a lower optimal temperature. • DFT reveals charge redistribution enhancing n-butanol adsorption. To selectively detect volatile organic compounds at low operating temperatures are highly desirable for industrial safety and environmental monitoring. Herein, we report the high-performance n-butanol gas sensors via interfacial engineering of Co 3 O 4 /Fe 2 O 3 p–n heterojunction composites. Hierarchical architectures composed of Fe 2 O 3 nanoparticles uniformly anchored on Co 3 O 4 nanorods were synthesized through a facile hydrothermal calcination strategy. Among the prepared samples, the optimized composite delivers a markedly enhanced sensing response of 23.08 toward 100 ppm n-butanol, representing a 5.6-fold improvement compared with pristine Co 3 O 4 , and simultaneously reducing the optimal operating temperature to 110°C. The mechanism analyses reveal pronounced interfacial charge transfer from Fe 2 O 3 to Co 3 O 4 , which induces band bending and built-in potential barriers that sensitively regulate carrier transport. The formation of heterointerfaces also significantly enriches chemisorbed oxygen species, thereby accelerating surface oxidation reactions with n-butanol molecules. As a result, the sensor exhibits outstanding selectivity against common interfering gases, fast response/recovery dynamics (42/36 s). Density functional theory calculations further elucidate that the heterojunction facilitates stronger adsorption of n-butanol and its oxidation intermediates, enhanced charge transfer, and favorable electronic-state redistribution near the Fermi level. This work highlights interfacial electronic engineering as an effective strategy for developing energy-efficient and highly reliable metal-oxide gas sensors. Download: Download high-res image (237KB) Download: Download full-size image
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INDUSTRIAL CROPS AND PRODUCTS
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2026
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IF 6.4
Yongliang Ding,Bingbing Shi,Siyu Liu,Jindong Li,Fang Wu,Qingmin Yang,Yuhong Wang,Mengjie Li,Zhongkai Wang,Xiankun Wu
H 2 O 2 -assisted cleavage converts non-edible tung oil into bio-based azelaic acid for polyamide synthesis. • Programmable crystallinity transforms rigid PA69 into tough elastomers with good melt processability. • Crystallinity-engineered polyamide elastomers show strong, reprocessable adhesion on metals. Transforming non-edible plant oils into high-performance engineering polymers offers a promising route toward sustainable materials, yet remains challenged by the inefficient upgrading of structurally complex feedstocks and the difficulty of simultaneously controlling crystallinity, toughness, and processability in the resulting polymers. Tung oil, a renewable resource rich in conjugated polyunsaturated fatty acids, is particularly attractive but has been underutilized because selective conversion into well-defined monomers remains difficult. Here we report an integrated strategy that links feedstock upgrading with molecular structure programming to create bio-based polyamides with designer crystallinity. Through hydrogen peroxide-assisted oxidative cleavage, tung oil is selectively converted into high-purity azelaic acid (AA), which is subsequently copolymerized with hexamethylenediamine and poly(propylene glycol) bis(2-aminopropyl ether) (D400) to construct a family of random copolyamides (PA69 X ). The incorporation of flexible ether-containing segments disrupts chain regularity and hydrogen-bond organization, enabling precise modulation of crystalline order, melting behavior, and lamellar structure while preserving excellent thermal stability. As a result, the materials undergo a transition from rigid semicrystalline polyamides to highly tough elastomers with programmable crystallinity. The optimized copolyamide exhibits a fracture toughness of 141 MJ m −3 together with continuous melt-fiber processability, stretch-induced crystallization behavior, and robust reprocessable adhesion to metal substrates with lap shear strengths exceeding 9 MPa. This work establishes a general framework that integrates renewable feedstock valorization, crystallinity engineering, and multifunctional performance, providing a pathway for converting underutilized plant oils into sustainable engineering polymers. Download: Download high-res image (240KB) Download: Download full-size image Description: A sustainable pathway from tung oil to high-performance polyamide elastomers is established via bio-based azelaic acid, enabling programmable crystallinity, exceptional toughness, stretch-induced crystallization, and multifunctional applications in fibers and reprocessable adhesives
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Molecular Catalysis
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2026
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IF 4.3
Peng Zhang,Guang-Hui Liu,Yao-Shun Wen,Yu-Hong Kang,Yang-Fan Yin,Sheng Li,Zhi-Hao Ma,Zhi-Xin Li
Crystallinity engineering of La 2 O 2 CO 3 boosts RWGS reaction performance. • Cu/La-24 achieves 58.3% CO 2 conversion with 99.9% CO selectivity at 600 °C. • Higher crystallinity strengthens Cu-support interaction and inhibits catalyst sintering. Reverse water-gas shift (RWGS) reaction offers a promising route for CO production and CO 2 utilization, but its industrialization has been hindered due to the lack of efficient catalysts. Among non-precious alternatives, Cu-based catalysts show high CO selectivity but suffer from poor thermal stability and rapid deactivation. Here, La 2 O 2 CO 3 support crystallinity engineering was adopted to enhance the performance over Cu-based catalysts. Cu/La-24 (high support crystallinity) and Cu/La-6 (low support crystallinity) catalysts were synthesized and evaluated. Compared with Cu/La-6 catalyst, Cu/La-24 catalyst exhibited a better CO 2 conversion (58.3% at 600 °C), while improving the reaction rate and catalytic stability. Characterization results revealed that higher crystallinity strengthened metal-support interaction, enhanced CO 2 adsorption capacity and inhibited catalysts sintering, collectively boosting catalytic performance. This work demonstrates that crystallinity regulation is an effective strategy for designing stable and active Cu-based catalysts, paving the way for designing more efficient catalysts for RWGS reaction. Download: Download high-res image (182KB) Download: Download full-size image
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POWDER TECHNOLOGY
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2026
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IF 5.5
Jinqiu Fu,Zheng Ren,Huanfa Feng,Jingliang Xu,Wei Zhuang,Hanjie Ying,Pengpeng Yang,Keke Zhang
Solvent effects on L-carnosine spherical aggregates were studied. • Reduced (001) solvent-crystal interaction promotes spherulitic growth. • Tip defects trigger non-crystallographic branching and spherulitic growth. • The spherulitic crystals exhibited superior flow properties. L-carnosine, a biologically active dipeptide with significant antioxidant properties, typically crystallizes in a needle-like habits that result in poor flowability and low bulk density, posing significant challenges for downstream processing. This study provides a new strategy for the preparation and optimization of spherical L-carnosine crystals. Systematic solvent screening identified dimethyl sulfoxide (DMSO) as the optimal antisolvent, enabling the formation of dense, uniform spherulites. The effects of main crystallization parameter on the morphology and properties of the spherical crystals were explored and the optimal crystallization conditions were determined. Molecular dynamics simulations and experimental analyses reveal that DMSO selectively reduces the solvent-crystal interaction energy on the (001) crystal face, accelerating growth at the crystal tips and triggering non-crystallographic branching. Compared to the raw material and spherical agglomerates, the spherulites show a 3.6-fold and 2.7-fold increase in bulk density, respectively. More importantly, they exhibit excellent flowability (Carr's index 14.4% vs. 47.8% and 39.2%; Hausner's ratio 1.16 vs. 1.92 and 1.47), highlighting the primary advantage of the spherulitic growth strategy. This work provides a mechanistic understanding of spherulitic growth and offers a practical route to enhance the powder properties of L-carnosine. Download: Download high-res image (223KB) Download: Download full-size image Solvent‑dependent morphology evolution and non‑crystallographic branching mechanism in L‑carnosine spherulitic crystallization.
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Journal of Materials Research and Technology-JMR&T
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2026
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IF 7.3
Xiangli Wen,Mingkun Bi,Lvzhou Li,Jianning Ding
SUS304 steel is widely employed as the core component material in battery slurry homogenization equipment. However, due to its insufficient hardness and poor resistance to plastic deformation, severe abrasive wear and oxidative corrosive wear tend to occur during the homogenization process, which further deteriorates the battery performance. In this work, targeting the special medium of battery slurry, three potential screw materials for application in battery slurry systems were selected: 40Cr alloy steel, 440C martensitic stainless steel, and GCr15 bearing steel. The friction behavior laws and wear resistance mechanisms of these materials in lithium iron phosphate (LFP) and lithium nickel cobalt manganese oxide (NCM) slurries were systematically investigated using an atmosphere friction and wear tester. The results demonstrate that all three materials exhibit superior wear resistance compared to SUS304. Among them, the chromium-rich hard phase in 440C delivers excellent anti-wear properties, making it suitable for medium-to-high speed homogenization, especially with outstanding performance in LFP slurry. GCr15 possesses a uniform and stable phase structure composed of carbides and martensite, resulting in broader adaptability to various working conditions. It maintains an extremely low wear rate ( δ ) with minimal fluctuation in both slurries, and the reduction in δ exceeds 90% under high-speed and high-load conditions, revealing the optimal comprehensive performance. This work provides important theoretical basis and experimental support for material selection of key components in battery homogenization equipment, and is of positive significance for improving equipment reliability and ensuring the quality of battery slurry.
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CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Lijie Zhu,Zhixin Li,Guoju Huang,Zhibing Chen,Wanli Liang,Fangyan Xie,Jian Chen,Nan Wang,Yanshuo Jin,Hui Meng
New setup monitors catalytic activity in-situ under tensile stress on metal foils. • Tensile stress shifts Ni d-band center up, lowering water dissociation barrier, boosting HER. • Heterostructure enables simple tensile strain tuning in Ni to enhance catalysis. Nickel is a widely used, non-precious metal electrocatalyst in the hydrogen evolution reaction (HER) and the hydrogen oxidation reaction (HOR). Herein, we developed a unique in-situ setup to investigate and monitor the impact of strain on the electrocatalytic properties of nickel metal by examining the HER activity of a macroscopically strained nickel sheet. The application of strain effectively optimizes the electronic structure of Ni, facilitating the accelerated dissociation of water and, consequently, enhancing the catalytic reaction. Furthermore, we synthesized Ni/Ni 0.2 Mo 0.8 N catalysts with heterostructures and induced microscopic stress on the crystal plane of Ni through these heterojunctions. The resulting Ni/Ni 0.2 Mo 0.8 N exhibited remarkable HER and HOR activity in alkaline solutions. A series of characterizations confirmed the presence of strain, and the activity of Ni was found to increase with the degree of strain. These findings introduce a novel approach for optimizing Ni-based materials in hydrogen catalysis and beyond.
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危险品化学品经营许可证（带存储）