JOURNAL OF POWER SOURCES
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2025
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IF 7.9
Ting Zhang,Juan Huang,Yongbin Yang,Chunmei Li,Jianfeng Tang,Qing Li,Hua Lin
The development of bifunctional non-noble metal electrocatalysts with high activity and stability remains a significant challenge. In this work, Fe@Ni aerogels with core-shell structure were synthesized by sol-gel method. The unique network-like architecture and amorphous core-shell structures of Fe@Ni aerogels provide abundant defects and unsaturated sites. Moreover, the tunable surface electronic structure enhances the availability of active catalytic sites, resulting in outstanding catalytic performance for both the oxygen evolution reaction (OER) and methanol oxidation reaction (MOR). For OER, the FeNi 2 aerogel requires only an overpotential of 215 mV to achieve a current density of 10 mA cm −2 , along with a low Tafel slope of 31.7 mV dec −1 and excellent stability. For MOR, its specific and mass activities were as high as 213.6 mA cm −2 and 106.8 A g −1 , respectively. In addition, this study also elucidated the mechanism of the excellent bifunctional catalytic activity of Fe@Ni core-shell aerogels, which provides a new idea for the development of other high-activity non-precious metal electrocatalysts.
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INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
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2025
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IF 3.9
Wenxia Zhang,Juan Zhang,Chao Wang,Man Liu,Jie Liu,Lifeng Xiao,Jiangang Chen
Organic acid modification can significantly enhance the performance of iron-based catalysts in Fischer–Tropsch synthesis (FTS) by regulating the quantity and type of functional groups on the catalyst surface. In this study, efficient Fe/ZrO2 catalysts were prepared using impregnation and environmentally friendly solid-state synthesis methods, and the effects of different organic acids on catalytic performance were systematically investigated. The catalysts were rigorously evaluated under industrially relevant FTS conditions, with reaction temperatures set at 270 °C for the impregnation method and 250 °C for the solid-state grinding method under 20 bar and WHSV = 5400 mL/(gcat·h). Comprehensive characterization techniques were employed to reveal the complex relationship between catalytic activity and structural characteristics. We systematically studied the effects of organic acids with different quantities of carboxyl and hydroxyl groups on improving FTS catalytic performance. The results show that citric acid (CA) significantly enhanced the catalytic activity in the CA-Fe/ZrO2 system. At a 6% Fe loading, a CO conversion of 39.89% was achieved at 270 °C, while maintaining a relatively low CH4 selectivity. The hydroxyl and carboxyl groups of CA can form stable complexes with metal ions, which improves the dispersion of iron, enhances the reducibility of iron oxides, promotes the formation of active Hägg iron carbide (χ-Fe5C2), facilitates chain growth, and ultimately boosts the production of valuable C5+ hydrocarbons. These findings highlight the potential of CA in optimizing iron-based FTS catalysts, offering important theoretical insights and practical guidance for future industrial applications.
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NEW JOURNAL OF CHEMISTRY
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2025
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IF 2.5
Hanyu Yao,Ruixuan Ji,Xiaoyi Song,Bin Yang,Yin Lv,Zhong Wei
Ferroptosis, a recently recognized form of non-classical programmed cell death (PCD), leads to impaired cellular structure and integrity due to the accumulation of lipid peroxidation products (LPO). However, single treatment ferroptosis often fails to achieve optimal tumor treatment outcome. Therefore, we constructed a multi-synergistic treatment strategy based on ferroptosis, that is more conducive to tumor therapy. In this study, we constructed a metal organic framework (MOF) loaded with glucose oxidase (GOx) and doxorubicin (DOX), denoted as Fe(Ⅲ)-RSSR@DOX@PEG-GOx. Fe(Ⅲ)-RSSR@DOX@PEG-GOx was synthesized through coordination between Fe3+ and disulfide-containing ligands scavenged GSH and downregulate glutathione peroxidase 4 (GPX4), thereby triggering ferroptosis. The GOx catalyzes glucose into abundant H2O2, promoting the Fenton reaction which results in excessive ROS formation within tumors. The accumulation of ROS can further enhance the process of ferroptosis, while the massive consumption of glucose constitutes a synergistic situation of “starvation treatment”. The smart biomimetic nanoplatform integrates ferroptosis, chemotherapy, and starvation therapy, providing a potential anti-tumor strategy to achieving multi-effect synergistic tumor treatment.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2025
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IF 8.5
Xingying Xue,Zhiwen Qi,Zhihong Wang,Ran Tao,Hao Zhou,Hongxia Chen,Jiandu Lei,Chengzhang Wang
In this study, magnetic nanocarriers (DU@Fe, D avg = 281.6 nm, zeta potential −28.0 mV) were fabricated using dextran, urushiol as the shell and superparamagnetic iron oxide nanoparticles (SPIONs) as the core. Subsequently, the specific ligand Lys-D-Ala-D-Ala of vancomycin (Van) was grafted onto the surface of DU@Fe, which generated nanoparticles (Lys-D-Ala-D-Ala@DU@Fe) with an average particle size of 385.5 nm and a zeta potential of −16.8 mV via specific and robust interaction. Ultimately, the immobilization capacity of Van reached up to 294.1 mg·g −1 for efficient antibacterial properties. Moreover, the assembly process adhered to the pseudo-second-order kinetics model ( R 2 = 0.998–0.999) and the Langmuir adsorption isotherm model ( R 2 = 0.999, 30 °C). Notably, V@DU@Fe effectively adhered to the cell envelopes of both Gram-negative and Gram-positive bacteria, achieving rapid bactericidal effects within 1 h. Furthermore, it maintained over 85.0 % of its initial antibacterial efficiency against S. aureus and S. epidermidis even after six recycles. Therefore, this study provides strategies and methods for the development of urushiol-dextran intelligent SPIONs nanomedicines.
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COLLOIDS AND SURFACES B-BIOINTERFACES
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2026
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IF 5.9
Xuan Shang,Mingyue He,Huiying Jiang,Fangying Jiang,Deping Wang,Jimin Cao,Yan Tan,Jigen Li,Yanlin Feng,Xin Zhou
Cancer remains a global health challenge, calling for integrated strategies that combine precise diagnosis with synergistic treatment. Although glucose oxidase (GOx)-mediated starvation therapy disrupts tumor metabolism by converting glucose into cytotoxic hydrogen peroxide (H 2 O 2 ), its clinical translation is hindered by inefficient delivery and insufficient monotherapy efficacy. To address these issues, we developed a multifunctional nanoplatform by encapsulating GOx within hollow porous superparamagnetic Fe 3 O 4 nanoparticles (Fe 3 O 4 -GOx NPs) to preserve its catalytic activity and enable high loading capacity. This system simultaneously enables magnetic resonance imaging (MRI), photothermal therapy, and enzyme-mediated catalytic intervention. In vitro studies demonstrated strong T 2 -weighted MRI contrast for precise tumor localization, together with near-infrared laser-triggered hyperthermia that enhance the efficacy of GOx-mediated starvation therapy, elevating oxidative stress and promoting apoptosis in 4T1 cells. In 4T1 tumor-bearing mice, a single administration of Fe 3 O 4 -GOx NPs combined with laser irradiation elicited potent tumor suppression through the synergistic effects of intratumoral ROS generation, glucose depletion, and localized photothermal ablation, outperforming either modality alone. Histopathological assessment revealed negligible systemic toxicity and preserved organ integrity. This work presents an integrated theranostic nanoplatform that unites tumor-targeted imaging, enzyme- driven metabolism intervention, and photothermal therapy into a single system, offering a promising strategy for precision cancer management.
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CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Siyu Zhu,Shaojie Shi,Yuqi Yang,Fengjiao Jiang,Xiaoling Gu,Shaodong Jiang,Hongyun Niu,Yaqi Cai
Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous and highly persistent in soil. Owing to the potential adverse effects of peroxides to soil ecosystems, oxidant-free advanced oxidation process (AOP) is highly demanded for PAHs remediation. We utilize the composites of phosphatized sludge biochars and core/shell Fe 3 P@Fe (PSL-Fe 3 P/Fe) as catalysts to decompose PAHs in soil. In a wide range of soil moisture, pyrene, benzo[ a ]anthracene, benzo[ a ]pyrene, indeno[1,2,3- cd ]pyrene, and dibenzo[ a , h ]anthracene are efficiently degraded by PSL-Fe 3 P/Fe within 6 h. For the first time, we find that reactive oxygen species resulting from internal micro-electrolysis (IME) of biochars (cathode) and Fe 3 P@Fe (anode) are sufficient for PAHs degradation. Strong adsorption, excellent electrical conductivity, high potential difference between Fe 3 P@Fe anode and biochars cathode, and acid-microenvironment provided by P 2 O 5 component trigger the remarkable reactivity of PSL-Fe 3 P/Fe. The environmental-benign PSL-Fe 3 P/Fe can eliminate the phytotoxicity of high-level of PAHs (200 mg/kg), recover soil microbial diversity, and promote the growth of lettuce Lactuca sativa .
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INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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2026
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IF 8.3
Chenxi Shang,Zhendong Gao,Boxuan Lu,Huaxia Zhou,Tingting Tang,Tayirjan Taylor Isimjan,Xiulin Yang
Rare-earth metal-based materials have rapidly gained attention as leading candidates for high-performance hydrogen storage, offering a promising direction for the advancement of clean energy technologies. In this study, a novel composite catalyst (Fe–Dy 2 O 3 /CoB) was constructed by introducing the rare-earth metals dysprosium (Dy), which significantly enhanced the catalytic performance of sodium borohydride hydrolysis. The experimental findings revealed that the Fe–Dy 2 O 3 /CoB catalyst demonstrated outstanding hydrogen generation efficiency (5512.4 mL min −1 g −1 ), accompanied by a notably low apparent activation energy (47.81 kJ mol −1 ) at 25 °C. Our results reveal that the incorporation of dysprosium not only optimized the electronic structure of the catalyst but also significantly improved the adsorption and activation of reactants. Additionally, the inclusion of iron imparted magnetic properties to the catalyst, facilitating easy separation and recycling via an external magnetic field. Notably, the hydrogen generated via this catalytic system is sufficient to power fuel cell-driven small vehicles, fully showcasing its practical application capability in on-demand hydrogen supply scenarios. This work highlights the untapped potential of rare-earth elements in tailoring the electronic structure of multi-component catalysts. It establishes a generalizable strategy for designing next-generation hydrogen generation systems based on NaBH 4 hydrolysis.
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Journal of Environmental Chemical Engineering
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2026
·Vol. 14
·期 2
·121376
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IF 7.2
Wei Ren,Xiao-Wen Huang,Dongmei Hou,Zhuoyuan Li,Jingenqi Li,Denglong Chen,Yuehong Ma,Chongli Wu,Qian-Qian Tang,Yi Hu,Long-Shuai Zhang,Jian-Ping Zou
Advanced oxidation processes (AOPs) based on peracetic acid (PAA) are widely employed for water purification; however, conventional PAA activation methods often exhibit low efficiency in generating hydroxyl radicals (•OH). Herein, a carbon nitride-supported Fe single atom catalyst (Fe-CN) is employed to activate PAA, achieving efficient degradation of 4-chlorophenol (4-CP). Experimental analyses confirmed that •OH is the predominant reactive species responsible for degradation. Density functional theory (DFT) calculations and in-situ Raman spectroscopy revealed that Fe-CN selectively adsorbs peroxy oxygen atoms from PAA, promoting O-O bond cleavage and •OH formation. The system demonstrated robust stability across a wide pH range, resistance to ionic interference, and high efficiency in natural water matrices. This work provides novel insights into •OH-dominated PAA-based AOPs for sustainable wastewater treatment.
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Energy Sources Part A-Recovery Utilization and Environmental Effects
·
2022
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IF 2.902
Bage Alhamdu Nuhu,Humphrey Adun,Olusola Bamisile,Mustapha Mukhtar
In this study, Ti-Fe-Si composites were prepared by one step ball-milling method as anode materials for Li-ion batteries. The effects of ball-milling speed and time were studied by X-ray diffraction, electron microscopy, and 57Fe Mössbauer spectroscopy. Changes in the composition and microstructure of the composites were observed and related to the electrochemical performance. Increasing ball-milling speed led to the formation of FeSix alloys that reduced the specific capacity while increasing the ball-milling time improved the particle size morphology and homogeneity. Discharge/charge profiles for the first two cycles were carried out at 0.05C current rate (1C = 1260 mAh.g−1for Li3.75Si). The first discharge for Ti-Fe-Si showed a LixSi reaction plateau of 1100 mAh.g−1, which were reversible and yielded columbic efficiency (CE) 77% and 90% in the first and second cycles, respectively. This capacity plateau indicated the insertion of about 3.25 Li into silicon. For the composite containing an additional 10% carbon SP, the theoretical capacity was about 1130 mAh.g−1, the discharge curve showed that the first discharge plateau reaches 1030 mAh.g−1 corresponding to 3.5 Li with the first CE was about 85%, and 98% for the second cycle. The addition of carbon to Ti-Fe-Si-C played a key role in capacity retention. The best results were obtained for the composite Fe/Ti/Si (1:1:2) with 10 wt% of carbon, ball-milled at 500 rpm for 48 hours. The specific capacities were about 900 mAh.g−1 at C/5 and 700 mAh.g−1 at 1C (C = 1200 mAg−1) with a capacity retention of about 90% for 100 cycles.
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INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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2020
·Vol. 45
·期 41
·21676-21686
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IF 4.939
Darvaish Khan,Subrata Panda,Zhewen Ma,Wenjiang Ding,Jianxin Zou
The present study focuses on enhancing the yield of Mg 2 FeH 6 and its hydrogen storage performances through a novel high-pressure compression approach. For which, MgH 2 and Fe powders are first mechanically milled in a molar ratio of 2:1 and subsequently compressed to a cylindrical pellet. Due to the compression, the yield of Mg 2 FeH 6 in the compressed 2MgH 2 –Fe pellet (90%) has been increased by 24% as compared to the reference ball-milled powder (66%). The thermodynamic destabilization of Mg 2 FeH 6 in the pelletized sample is observed through measuring the pressure-composition isotherms, resulting in the reduced ab/desorption enthalpy for the pellet sample (−68.34 and 75.61 kJ/mol H 2 , respectively). The hydrogen uptake and release kinetics of Mg 2 FeH 6 is remarkably fast, and it can store/release about 5 wt% H in less than 2.5 min at 400 °C. The faster hydrogen ab/desorption kinetics corresponds to the lower activation energies (36 and 95 kJ/mol H 2 , respectively). The excellent yield of Mg 2 FeH 6 and its improved hydrogen storage properties for the compressed pellet are primarily attributed to the microstructural modifications upon high-pressure compression, and also the obtained results for Mg 2 FeH 6 ternary hydride are linked to the literature data based on theoretical calculations.
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ANALYTICA CHIMICA ACTA
·
2026
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IF 6
Yicheng Yao,Liudi Ji,Peng Hu,Xiaoming Zhu,Junxing Hao,Kangbing Wu
Background Carbendazim (CBZ), is a benzimidazole fungicide and widely used for controlling fruit and vegetable diseases, which poses significant risks to human health due to its neurotoxicity, endocrine disruption, and reproductive toxicity. Sensitive and rapid monitoring of carbendazim residues in food is essential for ensuring food safety. Among the numerous developed methods, electrochemical sensing stands out due to its simplicity of operation, low cost, and capability for on-site detection. Its key point is to construct a high-performance sensing interface. Nevertheless, these interfaces still face some limitations, such as inadequate conductivity, relatively low sensitivity, and narrow linear range. Results Herein, graphene supported iron nanoparticles encapsulated nitrogen-doped carbon nanotubes (Fe@N-CNTs) were constructed. The MOF-derived “tube-bridge” CNTs architecture, enhanced by N-doping, ensures high conductivity and optimized electron transfer pathways. Encapsulated iron nanoparticles act as shielded yet accessible redox-active centers, enhancing catalytic specificity. Graphene prevents CNTs stacking, maximizing active site exposure and interfacial charge transfer. This synergistic design significantly boosts the electrochemical active surface area, electron transfer kinetics, and electrocatalytic activity. As a result, a highly sensitive electrochemical sensing platform for CBZ has been successfully constructed. An irreversible two-electron and two-proton process takes place on the surface of Fe@N-CNTs/Graphene/GCE. The composite demonstrated exceptional performance for CBZ detection, achieving a broad linear range (0.001-7.0 μM), and an ultralow detection limit (0.56 nM). Furthermore, the sensor exhibited superior repeatability, stability, and selectivity. Its practical applicability was successfully validated through the accurate quantification of CBZ residues in medicinal herbs and vegetables ( recoveries of 98.58%-101.7%). Significance This work offering a robust solution for monitoring ultra-low concentrations CBZ residues in complex food matrices. This innovative technology provides essential support for combating pesticide misuse while safeguarding public health and preserving ecological integrity related to CBZ contamination.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2026
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IF 9.7
Xin Li,Ze Lv,Tong Wu,Bolin Ji,Wei Wu,Yi Zhong,Hong Xu,Zhiping Mao,Linping Zhang
Enhancing the photocatalytic CO 2 conversion efficiency of metal-organic frameworks (MOFs) remain a central challenge in advancing carbon capture and utilization (CCU) technologies. Herein, we report a mixed-ligand strategy to construct a hybrid MOF (denoted as CTN ⊂ NM) by incorporating a Co-metalated tetrakis(4-carboxyphenyl)porphyrin (CoTCPPNa 4 , CTN) into an amine-functionalized MIL-101(Fe) framework (NH 2 -MIL-101(Fe), abbreviated as NM; MIL = Materials of Institute Lavoisier, a prototypical series of robust MOFs). The optimized catalyst with a Co/Fe molar ratio of 0.40 achieves a HCOOH production rate of 119.11 μmol g −1 h −1 under visible light in the absence of a sacrificial agent, representing a 4.2-fold increase compared with pristine NM. When a sacrificial electron donor is introduced, the rate further rises to 179.87 μmol g −1 h −1 . The markedly enhanced activity originates from the synergistic integration of CTN and NM: CTN provides strong visible-light absorption and efficient catalytic sites, while NM offers high porosity and strong CO 2 affinity. This cooperation broadens the light-absorption range, suppresses charge-carrier recombination, and accelerates CO 2 -reduction kinetics. In addition, the Co 3+ center in the metalloporphyrin macrocycle functions as an active CO 2 adsorption site, facilitating its activation and selective conversion to HCOOH. Overall, this study presents an effective mixed-ligand hybridization approach for solar-to-chemical energy conversion and provides valuable insights for the rational design of MOF-based photocatalysts toward carbon-neutral fuel production.
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危险品化学品经营许可证（带存储）