CATALYSIS LETTERS
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2026
·Vol. 156
·期 9
·248
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IF 2.5
He Jiayao,Liu Shuxin,Tian Xiaoxia,Zhao Jiuzhou,Xian Liang
In this study, a porous carbon support (CuCN) with a high specific surface area and an N-doped Cu-N-C network was synthesized by pyrolyzing copper acetylacetonate on a metal-organic framework (ZIF-8) at 900 °C. To investigate the relationship between the preparation process and performance of CuCN-supported palladium nanoparticles, a light-induced synthesis method was employed to replace the traditional high-temperature thermal reduction process, enabling the controlled loading of palladium nanoparticles onto CuCN. A Cu- and N-co-doped carbon-supported palladium nanocatalyst (Pd/CuCN-M) was prepared, and the effects of optimal illumination conditions and reducer types on the catalyst were explored. The results show that the Cu- and N-co-doped carbon-supported palladium nanocatalyst, designated Pd/CuCN-M1, prepared using methanol as the reducing agent and irradiated with near-ultraviolet light at 395 nm, exhibits high catalytic activity and stability. The rate constant for the reduction of p-nitrophenol (4-NP) reached 2.1 min⁻¹, and the conversion rate remained at 90.2% after five cycles of stability testing. This study presents a green, convenient, and highly efficient method for synthesizing Pd nanocatalysts, offering a new approach to reducing the use of precious metals and treating p-nitrophenol-based pollutants generated in industrial production. Graphical
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2026
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IF 5.4
Quangang Chen,Shijun Xu,Kaijun Wei,Xianmin Gong,Xingtao Cheng,Yi He,Haitao Liu,Xiangshan Hou,Yi Sun,Han Liu,Qing Yuan
In this work, modified Cr 3 C 2 and two-dimensional layered WS 2 were deposited within a Ni-P plating layer via pulse electrodeposition, synthesizing a novel Ni-P-Cr 3 C 2 /PANI@WS₂ plating on N80 carbon steel. The synergistic effects of Cr 3 C 2 /PANI (polyaniline-coated Cr 3 C 2 ) and WS 2 on the coating were investigated. The results indicate that adding the aforementioned components considerably enhances the surface morphology, mechanical characteristics, and corrosion resistance of the composite coating, as shown below: The Ni-P-Cr 3 C 2 /PANI@WS 2 plating exhibited outstanding mechanical properties, with a microhardness of 800.16 HV, an average coefficient of friction of 0.143, a wear scar area of 67.70 µm 2 and a wear depth of 0.97 µm. Nanoindentation testing further indicates this composite coating possesses the highest hardness and elastic modulus, reaching 785.02 HV and 154.67 MPa respectively. Immersion testing in a 3.5 % NaCl solution demonstrates that the incorporation of Cr 3 C 2 /PANI and WS 2 significantly enhances the long-term corrosion resistance of the Ni-P plating. Moreover, the composite plating maintains excellent corrosion resistance even under acidic conditions, demonstrating its potential for demanding applications in aggressive environments.
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CHEMICO-BIOLOGICAL INTERACTIONS
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2026
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IF 5.2
Hongchuang Ma,Nan Shen,Xin Liu,Fangfang Zhou,Chuanming Hao,Qun Luo
Background Acute kidney injury (AKI) remains a major clinical challenge lacking effective pharmacological interventions. Ferroptosis has emerged as a critical mechanism contributing to renal tubular injury. While p -coumaric acid (pCA), a natural phenolic compound, has been reported to exert renoprotective effects, its regulatory role in ferroptosis, particularly under different pathological contexts of AKI, remains incompletely understood. Methods A folic acid (FA, 250 mg/kg)–induced AKI model was established in mice treated with pCA (10 and 50 mg/kg). Renal function, histopathology, inflammatory responses, and ferroptosis-related markers were evaluated. Integrated transcriptomic and metabolomic analyses were performed to identify global regulatory alterations. Mechanistic studies were conducted in erastin-treated HK-2 cells. NRF2 signaling involvement was further assessed using pharmacological inhibition. Results pCA treatment significantly improved renal function, attenuated tubular injury, and suppressed inflammatory responses in FA-induced AKI. Multi-omics integration revealed that pCA markedly reprogrammed metabolic and transcriptional networks associated with ferroptosis and redox homeostasis. Mechanistically, pCA restored antioxidant capacity and normalized the expression of ferroptosis-related proteins. Notably, pCA activated NRF2 signaling, leading to upregulation of downstream targets involved in ferroptosis regulation. Inhibition of NRF2 partially abolished the cytoprotective and anti-ferroptotic effects of pCA in vitro. Conclusion pCA alleviates FA-induced AKI by suppressing ferroptosis through NRF2-dependent regulation of redox and metabolic homeostasis, highlighting NRF2 as a potential therapeutic target for AKI.
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CHEMICAL ENGINEERING SCIENCE
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2026
·
IF 5.1
Taijia Li,Guichun He,Mengfei Liu,Zhiwen Cao,Jie Min
Selective separation of 90 Sr 2+ and 137 Cs + from nuclear wastewater is a significant challenge in the field of environmental remediation. In this paper, magnetic P-type zeolite composites loaded with Fe 3 O 4 were successfully synthesized via an alkali fusion-assisted hydrothermal method using lithium porcelain clay tailings (LPCT) as the silicon-aluminum source, achieving resource utilization of solid waste. The material exhibited excellent selective adsorption capacity for Sr 2+ : under the conditions of pH = 6 and a dosage of 2 g/L, the removal rate for Sr 2+ (100 mg/L) reached 99.4%, while that for Cs + (50 mg/L) was only 55.2%. In simulated/real seawater systems, the material maintained exceptionally high selectivity for trace Sr 2+ (with a K d value of 1.265 L·g –1 in simulated seawater). Mechanistic studies revealed that Sr 2+ undergoes specific ion exchange primarily by substituting Na + within the zeolite framework (adsorption energy: −2.37 eV), forming stable chemical bonds; in contrast, Cs + binds only through weak physical adsorption (adsorption energy: −0.85 eV), making it susceptible to displacement by competing ions. After five cycles, the Sr 2+ removal rate remained above 65%. This study presents a strategy for upcycling solid waste into high-performance functional materials and offers a promising solution for the efficient and selective separation of radioactive Sr 2+ from complex aqueous environments, highlighting its potential for practical nuclear wastewater treatment.
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Energy Materials
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2026
·Vol. 6
·期 6
·N
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IF 11.9
Yabo Wu,Zhiqiang Zhang,Yihao Zhang,Zhaoxin Ma,Changji Deng,Song Zhang,Bowen Bai,Weicong Liu,Yifan Huang,Qingfeng Zhang,Yongming Hu
Polymer dielectrics are promising materials for electrostatic capacitors because of their high dielectric strength and fast charge-discharge capability. However, improving the energy-storage density of fluorinated ferroelectric polymers remains challenging because enhanced polarization is often accompanied by reduced breakdown strength. In this work, all-organic poly(vinylidene fluoride- trifluoroethylene-chlorofluoroethylene)/poly(methyl methacrylate) [P(VDF-TrFE-CFE)/PMMA] dielectric films are prepared by solution blending and casting. By tuning the blend ratio, the intermolecular interactions and crystallization behavior of the films are systematically regulated, resulting in distinct changes in their electrical properties. The results suggest that dipolar interactions between PMMA carbonyl groups and polar groups in P(VDF-TrFE-CFE) disturb chain packing and suppress crystallization, thereby reducing dielectric loss and improving breakdown stability. At the optimized composition, the P(VDF-TrFE-CFE)/PMMA (50/50 wt.%) film delivers a dischaged energy density of 17.12 J/cm3 with an energy-storage efficiency of 88.11%. Further γ-irradiation of the optimized film at doses of 10-150 kGy leads to additional improvement in dielectric energy-storage performance. These results demonstrate that regulating intermolecular interactions and crystalline morphology through all-organic blending and irradiation is an effective strategy for developing high-performance polymer dielectrics.
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FUEL PROCESSING TECHNOLOGY
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2026
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IF 7.8
Yongjun Zhang,Xiaodan Zhang,Yulong Zhao,Jiayu Zhang,Hongjing Han,Enhao Sun,Yanan Zhang,Yanguang Chen,Chunming Xu
La/P/HZSM-5 with multi-level pore structure was synthesized via a stepwise dual-template strategy. • The La/P/HZSM-5 zeolite reduces Brønsted acidity and creates Lewis acidity. • The optimal acidity of La/P/HZSM-5 promotes radical and monomolecular cracking. The enhancement of ethylene yield via catalytic cracking presents a persistent challenge in addressing ethylene supply shortages. A series of bifunctional catalysts (La/P/HZSM-5) were prepared via simultaneous incorporation of lanthanum and phosphorus into HZSM-5 zeolite. The Py-IR analyses revealed that the simultaneous introduction of lanthanum and phosphorus resulted in a decrease in the Brønsted acid content of the La/P/HZSM-5 catalyst from the HZSM-5 (0.792 mmol/g) to 0.223 mmol/g. Further analysis of the structure-activity relationship between the catalyst and its performance reveals that the low Brønsted acid and porous structure effectively promotes the monomolecular decomposition of the cracking process. It was evident that the synergistic modification has resulted in the La/P/HZSM-5 catalyst demonstrating superior performance in n -octane cracking, with a cracking mechanism ratio (CMR) of 49.35. The balanced metal-acid functionality of the La/P/HZSM-5 catalyst was found to result in C 2 H 4 yields of 31.23% from n -octane and 19.18% from diesel, representing increases of 31.11% and 50.20%, respectively, compared to the parent HZSM-5 (23.82% and 12.77%). The present work provided a theoretical foundation for the design of metal-acid bifunctional catalysts, with a view to improving ethylene production in catalytic cracking processes. Download: Download high-res image (260KB) Download: Download full-size image
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CHEMICAL ENGINEERING JOURNAL
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2025
·
IF 13.2
Junyan Wei,Wenqian Cao,Hao Chen,Xiaosheng Tang,Zongli Huo,Feng Zhu,Zunyao Wang,Ruijuan Qu
The photoreactions on suspended particulate matter (SPM) surface were a non-negligible environmental transformation process for hydrophobic organic pollutants in river water environments. Herein, SPM samples from four representative basins in China—the Yangtze River, Yellow River, Pearl River, and Haihe River—were chosen and focused on the effects of differences in the SPM composition on the phototransformation behavior of 2,4′-dichlorodiphenyl trichloroethane (o,p′-DDT). The experimental results demonstrated a lower light-screening effect, lower organic carbon content, and higher proportions of carbonate minerals and quartz components conducive to the photodegradation of o,p′-DDT on the SPM surface. The compositional characteristics of endogenous dissolved organic matter (DOM) also influenced the generation of reactive oxygen species (ROS) by SPM. Mass spectrometry analysis revealed that although the SPM from different basins did not alter the types of o,p′-DDT products, it influenced their yields. The estrogenic effects of the products were preliminarily assessed through molecular docking with the human estrogen receptor, and the phototransformation process on the surface of Haihe River SPM might have a more substantial estrogenic effect. These findings deepened the understanding of the regional differences in pollutant fate and might provide reference information for the management and regulation of pollutants in different regions.
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Journal of Materials Chemistry A
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2025
·
IF 9.5
You Xu,Hao Chen,Youwei Sheng,Taoyuan Tian,Kai Deng,Ziqiang Wang,Hongjie Yu,Liang Wang,Hongjing Wang
Electrocatalytic urea synthesis from CO2 and NO3− offers a dual solution for greenhouse gas mitigation and industrial effluent valorization, while enabling renewable energy storage. Rational design of advanced catalysts for urea electrosynthesis represents a scientifically critical yet persistently challenging endeavor. In this study, we developed Pd–Bi dilute alloy metallene arrays grown on Cu foam (Pd–Bi/CF) by a two-step galvanic replacement strategy. The optimized Pd10–Bi90/CF could deliver a notable urea yield rate of 2165.2 μg h−1 cm−2 with 45.3% faradaic efficiency at −0.25 V vs. reversible hydrogen electrode (RHE). Experimental and computational studies validated that d-p orbital hybridization between d-block Pd and p-block Bi in Pd10–Bi90/CF modulates the electronic structure of active sites, thereby facilitating adsorption and activation of NO3− and CO2, synergistic generation of key intermediates *NH2 and *CO, and selective C–N coupling toward urea synthesis. This study demonstrates a viable pathway toward optimizing Bi-based catalysts for electrocatalytic urea synthesis.
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SENSORS AND ACTUATORS B-CHEMICAL
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2025
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IF 7.7
Shuwen Zhu,Huiqing Fan,Lin Lei,Yongbo Fan,Weijia Wang
Developing triethylamine (TEA) sensors using metal oxide semiconductors (MOS) presents challenges such as achieving high sensitivity, low operating temperatures, and reliable detection of trace TEA. In this study, a novel two-step solvothermal synthesis strategy was developed for the sequential fabrication of δ-MnO 2 nanosheets and δ-MnO 2 /WO 3 (WMn) heterojunction composites. The resulting WMn heterostructure features a unique morphology, where δ-MnO 2 nanosheets are encapsulated within a WO 3 matrix, forming well-defined layered interfaces and abundant active sites. This tailored structure significantly enhances the TEA sensing performance. In particularly, WMn1 sensor achieves an ultrahigh response of 515.37 to 20 ppm TEA at 140 °C. The sensor also exhibits an exceptionally low detection limit of 15.91 ppb, along with rapid response/recovery kinetics and long-term stability. The superior performance is attributed to the formation of n–p heterojunction and the synergistic effects of electronic and chemical sensitization, which optimize charge carrier dynamics, reduce interfacial resistance, and enhance surface reactivity. By focusing on interface engineering in heterojunction-based gas sensors, this study contributes to the strategic design of high-performance sensing materials, with potential applications in environmental monitoring and industrial safety.
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JOURNAL OF CHEMICAL THERMODYNAMICS
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2025
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IF 2.2
Min Zheng,Ali Farajtabar,Abolghasem Jouyban,William E. Acree,Hongkun Zhao
At 298.15 Kelvin, the method of isothermal dissolution was utilized in this current work at 101.0 kPa to obtain the experimental solubility data for the quaternary terephthalic acid (TA), p -toluic acid ( p -TLA) + 4-carboxybenzaldehyde (4-CBA) + N -methylpyrrolidone (NMP) system. Generation of the quaternary phase diagram was made through the Jãneck approach, which was based on the mutual solubility that was determined. Three zones of neat solid crystallization, one invariant point, along with three co-saturated curves, were included in the quaternary phase diagram. The three solids that were validated by Schreinemaker approach of wet residue were pure p -TLA, pure 4-CBA, and pure TAˑ2NMP, an adduct of TA with NMP with a mole ratio of 1:2. The area where TAˑ2NMP crystallizes is larger compared to that for p -TLA and 4-CBA. In addition, the model of NRTL was used to mathematically correlate and calculate the quaternary solid-liquid phase diagram. The experimental quaternary phase diagram was found to be in good agreement with the computed one obtained from the NRTL model as evidenced by a root-mean-square deviation of 0.14632 and a relative average deviation of 5.01 %. Separating TA from its mixtures by solvent adduct crystallization might be fundamentally supported by the quaternary phase diagram and thermodynamic models. Considering the investigation on the independent gradient model based on Hirshfeld partitions, as well as the 2D fingerprint plot and difference map of electron density, density difference and difference map of ELF analysis, the van der Waals forces are viewed as favorable weak interactions during the process of forming the adduct of TAˑ2NMP.
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Journal of Environmental Chemical Engineering
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2025
·
IF 7.2
Zeyun Yang,Hao Guo,Zhiguo Yu,Lei Sun,Ruixue Yan,Wenting Niu,Jianpeng Ma,Yu Yan,Wu Yang
Para-aminophenol (4-AP) is the toxic hydrolysate of the pharmaceutical molecule p-acetaminophen (ACOP) and their overexposure is harmful to ecological environment and physical health, So, designing a reasonable and efficient sensing platform for simultaneous detection of the trace targets is urgent. In this study, a novel electrochemical sensing interface was constructed for simultaneous detection of ACOP and 4-AP by in-situ growth of a flat rod-like lanthanide metal-organic framework Ce-MOF on MXene materials. 2D MXene nanosheets improved the conductivity and dispersion of the composites while Ce-MOF provided abundant adsorption sites and big specific surface area, thus significantly amplifying the electrochemical response signal. Post-oxidation of Ce-MOF induced electrocatalytic active Ce 3 + /Ce 4+ centers. As a result, the electrochemical sensor exhibited a wide linear range of 0.6 ∼ 360 μM and low detection limits (0.023 and 0.031 μM) for 4-AP and ACOP determination as well as satisfactory repeatability, stability and selectivity, and achieved accurate and synchronous detection of ACOP and 4-AP in actual tablets and environmental water samples.
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INORGANIC CHEMISTRY
·
2022
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IF 5.436
Chen Li,Ke Liu,Cheng Jin,Dequan Jiang,Zimin Jiang,Ting Wen,Binbin Yue,Yonggang Wang
Cr1−δTe, as a unique series of defective compounds with a NiAs-type structure and periodic metal vacancies, has attracted intensive research interest because of its diversity in structure and property dependent on the tunable stoichiometric ratio. Another feature of these compounds is their ability to switch between NiAs- and MnP-type structures, in which there often exist composition-, temperature-, or pressure-induced phase transitions accompanied by intriguing physical property switching. Herein, we report the syntheses of a series of Cr1−δTe compounds with similar compositions but distinct crystal structures, their phase transitions, anomalous transport, and photoelectric conduction behaviors under high pressure (HP). For the three Cr1−δTe compounds with δ = 0, 0.25, 0.375, CrTe undergoes pressure-induced NiAs-to-MnP phase transition at around 15 GPa, while Cr3Te4 and Cr5Te8 undergo isostructural phase transitions at around 12 and 11 GPa, respectively. Electrical transport measurements indicate anomalous conduction behaviors: CrTe undergoes a semiconductor-to-metal transition at around 24 GPa, while Cr3Te4 and Cr5Te8 show unexpected metal–semiconductor–metal transitions sequentially upon compression. Besides, CrTe and Cr5Te8 exhibit pressure-induced n–p conduction-type switching at around 9 and 3 GPa, respectively, while Cr3Te4 shows p-type conductivity in the full pressure range. Local structure analyses based on in situ HP Raman spectra are performed to understand the structure and property evolutions of Cr1−δTe under HP. Defective transition-metal chalcogenides with pressure-induced NiAs-to-MnP phase transition and conduction-type conversion provide a potential platform for the rational design of photoelectric conversion devices.
研究领域:
凝聚态物理
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材料科学
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高压物理
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固态化学
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材料电子性质
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