JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
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2026
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IF 6.7
Rongjing Zhang,Yi Zhang,Ziyue Tang,Yingquan Chen,Haiping Yang,Hanping Chen
Protein-rich biomass is a promising feedstock for producing N-containing chemicals via catalytic pyrolysis, yet poor product selectivity remains a critical bottleneck. Therefore, it is of great significance to improve the catalyst activity and catalytic efficiency for the for the highly selective synthesis of N-containing chemicals. This study pioneered bottleneck the modification of HZSM-5 zeolite with Fe and Co for the catalytic pyrolysis of soybean protein to produce indoles. The results indicated that Fe and Co loading reduced the number of Brønsted acid sites on HZSM-5 while generating novel Lewis acid sites, such acid rearrangement improved the yield of liquid oil and facilitated indoles formation. Among monometallic Fe or Co modified HZSM-5, 1 wt% Fe/HZSM-5 obtained the maximum content and selectivity of total indoles (35.5% and 55.6%, respectively). Furthermore, Fe-Co bimetallic modification with Low Fe/Co ratio exists a synergistic effect on indole, but excess Fe is unfavorable for indoles production. Fe 1 Co 3 /HZSM-5 further increased total indoles content and selectivity (37.6% and 61.6%, respectively). The Lewis acid sites were conducive to the formation of indole, Fe 1 Co 3 /HZSM-5 had the highest content of Lewis acid sites. This work provides a novel technical pathway for indole production via catalytic pyrolysis of biomass with endogenous nitrogen.
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高影响因子
Applied Materials Today
·
2026
·
IF 7
Xiaojie Liu,Boyu Ye,Yun Deng,Yanhua Yu,Fan Yu,Wangting Lu,Lu Zhou,Min Liu,Wenhui Song
Rapid gelation (∼5 s) via dual-crosslinking of click chemistry and Fe³ ⁺ coordination. • Synergistic antibacterial effect of mild photothermal therapy and Fe³ ⁺-mediated Fenton reaction. • Excellent self-healing ability and strong adhesion to various substrates and tissues. • Excellent biocompatibility and Accelerated wound healing by promoting angiogenesis and collagen deposition in vivo. Multifunctional hydrogels are effective for treating injured and infected skin. These materials mimic native tissue and promote regeneration through their high-water content and biocompatibility. In this study, we developed an interpenetrating network hydrogel composed of hyaluronic acid and collagen (HA/Col) with strong tissue adhesion and synergistic antibacterial properties. The hydrogel rapidly forms within approximately 5 s through a dual-crosslinking strategy that combines bio-orthogonal click chemistry with Fe³ ⁺ coordination bonding. The resulting hydrogel demonstrates excellent self-healing ability, strong adhesion, suitable swelling and degradation profiles, and a pronounced photothermal effect. In vivo biocompatibility evaluations show no pathological changes in major organs on days 7 and 14 post-treatment. Furthermore, the hydrogel shows robust antibacterial activity and reduces local inflammation. It ultimately accelerates wound healing by promoting collagen deposition and neovascularization. Taken together, this multifunctional hydrogel holds great promise as a next-generation wound dressing for regenerative skin treatments. Download: Download high-res image (133KB) Download: Download full-size image We developed an interpenetrating network hydrogel composed of hyaluronic acid and collagen (HA/Col) with strong tissue adhesion and synergistic antibacterial properties for rapid wound repair.
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高影响因子
INORGANIC CHEMISTRY
·
2026
·
IF 4.6
Mengjun Xiao,Yu Gui,Andraž Mavrič,Yao Nie,Wendong Zhang,Peng Chen,Pengpeng Wang,Yi Wang
The chlorine evolution reaction (CER) is essential for industrial chlorine production. However, achieving high CER selectivity remains a challenge due to the high cost and narrow potential gap between the CER and the competing oxygen evolution reaction (OER) in conventional noble oxide catalysts. In this work, Hemin is adopted as a model molecular catalyst for CER owing to its porphyrin macrocycle and the axial Cl ligand, achieving an overpotential of ∼190 mV at 10 mA cm–2 with ∼100% chlorine selectivity and excellent stability over 100 h in corrosive acidic brine. Spectroscopic and electrochemical analyses reveal that the axial Cl–Fe interaction stabilizes the rigid configuration geometry of the Hemin molecule, while the π-conjugated macrocycle and the Fe-centered electronic effect jointly modulate the electronic state of Fe. This combination effectively suppresses electrochemical demetalation and preserves structural integrity for enhancing selectivity and durability. It is hoped that this work can propose fundamental insight into the rational design of efficient molecular electrocatalysts for promoted chlorine evolution.
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PubMed
高影响因子
CERAMICS INTERNATIONAL
·
2026
·
IF 6
Lu Cao,Huijiadai Luo,Xiaoxiao Huang,Yong Huang,Hua Ke
BaTiO 3 ceramics were synthesized via a conventional solid-state reaction method to investigate the influence of lattice strain induced by tiny content of Fe 3+ doping (1 mol%) on the structural evolution and ferroelectric properties. The incorporation of Fe 3+ introduces a compressive strain field, resulting in a reduced c / a ratio and a disordered domain configuration. Such lattice strain significantly enhances the maximum ferroelectric polarization ( P max ) from 23.2 μC/cm 2 for undoped BaTiO 3 ceramic to 40.6 μC/cm 2 for BaTi 0.99 Fe 0.01 O 3- δ ceramic. This observed enhancement is attributed to a lowered energy barrier for polarization switching and the facilitation of domain wall motion. Phenomenological analysis based on symmetry-related strain-polarization coupling further reveals that the Fe 3+ induced compressive strain mitigates the lattice mismatch stress at domain boundaries and alleviates the strain constraint on polarization switching. These findings clarify the relationship between chemical-doping-induced lattice strain and ferroelectric performance, offering a pathway for the deliberate control of domain structure to achieve high ferroelectric performance in bulk ceramics.
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高影响因子
MICROPOROUS AND MESOPOROUS MATERIALS
·
2026
·
IF 4.5
Rongyue Cao,Boyuan Chen,Jianan Liu,Jiarui Li,Tong Li,Zhibin Li,Baojiang Jiang
Efficient acrolein production at lower temperature (200 °C). • Optimal acidity identified by tuning the Si/Al ratio in ZSM-5. • Trace Fe enhanced yield 2.4 times more and improved coke resistance. • Synergistic promotion of glycerol dehydration by Brønsted and Lewis acids. The catalytic dehydration of glycerol to acrolein represents a sustainable route for biomass valorization. However, most reported systems require high temperatures or pressure, which limits energy efficiency and sustainability. Furthermore, the relationship between catalyst acidity and acrolein formation in the liquid phase remains inadequately understood. In this work, we demonstrate that nano-sized ZSM-5 zeolites enable high acrolein selectivity under notably milder conditions (200 °C, 1.2 MPa). 0.3 % Fe-modified ZSM-5 (60) catalyst exhibits an acrolein yield rate 2.4 times higher than unmodified zeolite, achieving 41.3 % glycerol yield with 84.2 % selectivity. This enhancement originates from a tailored Brønsted-Lewis acid synergy, wherein Brønsted sites steer the reaction pathway while adjacent Fe-derived Lewis sites promote the dehydration steps. This study not only provides an efficient low-temperature strategy for glycerol conversion but also clarifies the role of acid-site synergy in liquid-phase dehydration, offering a rational approach for designing durable and selective catalysts. A series of ZSM-5 catalysts with varying Si/Al ratios were synthesized via a one-pot hydrothermal method, among which ZSM-5 (60) was identified as the optimal candidate due to its appropriate Brønsted acidity. To further enhance the cycling stability, an Fe-modified ZSM-5 catalyst was constructed by the introduce of Fe, which generated additional Lewis acid sites, creating a synergistic Brønsted-Lewis acid system. In the low-temperature (200 °C) dehydration of glycerol to acrolein, the Fe/ZSM-5 (60) catalyst achieved an acrolein yield 2.4 times than that of the unmodified ZSM-5 (60), while also exhibiting significantly improved resistance to coke formation. Download: Download high-res image (323KB) Download: Download full-size image
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高影响因子
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
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2026
·
IF 16.8
Li Shao,Genyuan Fu,Jingming Ran,Qingwen Zheng,Yashi Ma,Jihong Li,Zhengjun Wang,Tongzhou Wang,Yida Deng
Clarification of Fe behavior during seawater OER: Demonstrating that Fe in NiFe oxides undergoes continuous dissolution under seawater OER conditions, but can be dynamically stabilized through chloride-regulated speciation rather than being irreversibly lost. • Identification of a chloride-regulated Fe stabilization mechanism: Reveling that dissolved Fe 3+ forms FeCl 4 - species in the electrolyte and dynamically redeposits onto the anode surface, enabling continuous regeneration of surface Fe motifs while suppressing chloride-induced corrosion. • Mechanistic link between Fe regulation and durable OER performance: Chloride-regulated Fe redistribution stabilizes high-valence Ni active sites, suppresses lattice oxygen participation, and accelerates OER kinetics, resulting in low overpotential and operating continuously in real seawater for 4,000 hours with an extremely low degradation rate of 3.49 µV h⁻¹. In seawater electrolysis, chloride corrosion and Fe leaching-related deactivation remain the main factors limiting the operational stability of NiFe-based anodes. Here, NiFe 2 O 4 is employed as a model catalyst to elucidate the dissolution-complexation-redeposition behavior of Fe species and their cooperative interactions with Cl − during the oxygen evolution reaction (OER). We reveal that although Fe dissolution is unavoidable, OER, a portion of the leached Fe 3+ does not remain in the bulk electrolyte but rapidly coordinates with Cl − to form soluble [FeCl 4 ] − complexes. These [FeCl 4 ] − species are subsequently driven back to the anode surface under anodic potentials, giving rise to a dynamic dissolution-redeposition equilibrium. The redeposited Fe, stabilized through Fe-Cl interactions, generates surface-bound chloride species that repel free Cl − from the electrolyte, simultaneously suppressing chloride corrosion and enhancing catalytic activity. Benefiting from this metal-halide synergistic stabilization, NiFe 2 O 4 exhibits outstanding OER performance, achieving 100 mA cm −2 at a low overpotential of 248 mV and exhibiting remarkable stability, operating continuously in chloride-containing electrolyte for over 4000 h with an extremely low degradation rate of 3.84 µV h −1 . Download: Download high-res image (403KB) Download: Download full-size image
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Huajing Zhou,Yuanxin Huang,Wenbo Zhao,Lingxiang Zhao,Sai Tian,Tiancheng Li,Liang He
Lattice oxygen defects promote efficient oxidant activation • Iron and manganese sites drive singlet oxygen dominated oxidation • Rapid antibiotic degradation achieved in real water matrices • Catalyst shows low metal leaching and good cycling stability • Treated effluents show low ecological risk in seed germination tests Enhancing the activation efficiency of peroxymonosulfate (PMS) to generate reactive oxygen species (ROS) is crucial for boosting Fenton-like reactions. However, simultaneously promoting PMS adsorption, accelerating interfacial electron transfer, and shifting the activation pathway to optimize its activation kinetics still poses a substantial challenge. Herein, we developed a bimetallic catalyst enriched with lattice oxygen defects, denoted as Fe 14 Mn 1 -LOx, for PMS activation toward the remediation of emerging organic contaminants in aquatic environments. Combined experimental and theoretical mechanistic studies reveal that the intrinsic catalytic activity of Fe 14 Mn 1 -LOx originates from the intermetallic lattice oxygen defects (Fe-O latt -Mn). These defects significantly elongate the O O bond of adsorbed PMS and drastically lower its dissociation energy to 5.79 kJ mol −1 . Furthermore, the Fe-O latt -Mn sites increase the electron density near the Fermi level and adopt a bidentate coordination configuration, enabling faster and more efficient electron transfer to the O O bond, thereby promoting the generation of radical and non-radical species, predominantly singlet oxygen ( 1 O 2 ) with a contribution as high as 97.4%. Benefiting from these merits, the Fe 14 Mn 1 -LOx catalyst exhibits an exceptional degradation rate constant of 0.513 min −1 for tetracycline (TC), a representative emerging contaminant. This rate is 3.72 and 24.4 times higher than those of pristine FeOx (0.138 min −1 ) and MnOx (0.021 min −1 ), respectively. Remarkably, complete TC removal (100%) is achieved within just 10 min, outperforming most reported analogous catalysts. This work underscores the critical role of precisely engineering intermetallic lattice oxygen defects to modulate heterogeneous PMS activation, offering an innovative catalyst design strategy for efficient deep purification of emerging contaminants in real water matrices. Download: Download high-res image (263KB) Download: Download full-size image
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高影响因子
Magnetochemistry
·
2026
·Vol. 12
·期 7
·71
·
IF 2.8
Hui Peng,Yutong Xie,Daode Zhu,Longqin Wang,Leihao Han,Yumeng Cai
Iron powder cores are widely used in cost-sensitive low- to medium-frequency applications because of their high saturation magnetisation, low cost and favourable formability. However, the low electrical resistivity of iron powders favours continuous conductive pathways between adjacent particles, leading to high-frequency eddy-current loss and heat accumulation. To combine electrical insulation, interfacial stability, magnetic-property retention and thermal diffusion in a single coating, a synergistic insulation/thermal-conduction coating based on thiol-functionalised boron nitride was designed for iron-based magnetic powder cores. Hexagonal boron nitride was surface-modified through ultrasonic activation followed by grafting with a mercaptosilane coupling agent, forming covalent linkages on the boron nitride surface. The resulting functionalised nanosheets were deposited onto water-atomised iron powders through interfacial interactions between nitrogen- and sulfur-containing functional groups and the iron surface. A coating content of 5 wt.% produced a relatively continuous and uniform interfacial layer with limited agglomeration, enabling the magnetic powder cores to combine interparticle insulation, loss reduction, magnetic-property retention and thermal transport. The optimised core exhibited a volume resistivity of 58.7 Ω·m and a total core loss of 81.2 kW/m3at 10 mT and 100 kHz, corresponding to a 20.8% reduction relative to the pure iron core. The sample retained a saturation magnetisation of 201.4 emu/g and an effective permeability of 67.5 at 100 kHz, while achieving a thermal conductivity of 55.2 W/(m·K) and a thermal impedance of 0.215 K·m2/W. Loss-separation analysis indicates that the continuous insulating layer restricts interparticle induced-current pathways and suppresses high-frequency eddy-current loss, while the two-dimensional boron nitride framework promotes internal thermal diffusion.
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高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2026
·
IF 9.1
Xiaozeng Miao,Borui Cai,Weiwei Wang,Wenhao Wu,Xiaole Weng,Daohui Lin,Kun Yang
Catalytic polymerization represents a promising approach for the removal of sulfonamide antibiotics (SAs) with minimal oxidant demand. Here, we developed a biochar-supported Fe single-atom catalyst (Fe 1 /DNBC) featuring Fe-C x coordination anchored at carbon defects, enabling selective peroxymonosulfate (PMS) activation toward polymerization of SAs. Fe 1 /DNBC achieved 93.4% sulfamethoxazole (SMX) removal and 73.5% total organic carbon (TOC) reduction within 10 min at a low PMS dosage (0.06 mM), corresponding to an approximately 90% reduction in oxidant demand relative to the theoretical requirement for complete mineralization. Mechanistic studies revealed that Fe-C x sites created electron-deficient microenvironments that promoted PMS chemisorption and the formation of surface-bound PMS complex (PMS*) as the dominant reactive species. The shortened O β -O γ and S-O β bonds in PMS* suppressed radical formation and oxygen-transfer pathways, thereby favoring a selective electron-transfer-driven polymerization pathway. Electrochemical analysis demonstrated that the oxidation potential of PMS* could be tuned by PMS concentration, regulating the balance between polymerization and mineralization. This system exhibited robust performance across complex water matrices and continuous-flow conditions. More importantly, Fe 1 /DNBC/PMS treatment effectively eliminated the phytotoxicity of SMX-contaminated water, shifting wheat shoot and root responses from 49.7% and 72.3% inhibition to 19.8% and 17.0% promotion, respectively. This work establishes a Fe-C x coordination engineering strategy to regulate PMS activation pathways, enabling efficient and selective removal of SAs with reduced oxidant consumption and mitigated environmental risks.
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高影响因子
POLYHEDRON
·
2026
·
IF 2.8
Haiyan Tao,Ye Zhang,Weixiong Dong,Jianyue Li,Huwei Lan,Na Xia
Organic dye pollutants is one of the serious pollutants in recent years，which is a major global challenge that threatens human health and sustainable societal development. Therefore, effective efficient removal of organic contaminants from water has thus become a vital issue. As an advanced oxidation process, the Fenton reaction has gained considerable attention owing to its effectiveness in degrading refractory organic pollutants. In this study, a simple sol-gel process was used to prepare carboxymethyl fiber copper‑iron complex (Fe/Cu-CMF) heterogeneous Fenton reaction catalyst by co-coordination with copper (II) and iron (III) using esterification-modified cottonseed meal fiber (CMF) as raw material. The results showed that the Fe/Cu-CMF membrane grafting was successful, and the carboxyl group was successfully introduced into the fiber surface structure by the esterification reaction. The preparation of a carboxylate fiber iron‑copper complex through coordination with Fe 3+ and Cu 2+ was carried out for the degradation of reactive red 195 dye, and its catalytic performance was evaluated. Under light irradiation, Fe/Cu-CMF significantly enhanced dye degradation, achieving a decolorization rate of 95.6% in 50 min. The catalyst exhibited optimal activity at pH 3.0 and maintained high efficiency over five consecutive reuse cycles, with the decolorization rate consistently at 95% without significant loss of activity. The research indicates that Fe/Cu-CMF materials are highly promising for use in technologies aimed at treating organic dye wastewater.
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高影响因子
INORGANIC CHEMISTRY COMMUNICATIONS
·
2026
·
IF 5.9
Xiaofei Guo,Zhongyao Guo,Chen Wang,Candong Liu,Honghui Cheng,Kuikui Wang
The highly active and stable oxygen reduction reaction (ORR) process is essential for driving the development of zinc-air batteries (ZABs). Therefore, by integrating the precise regulation of precursors, the tannic acid (TA) etching and nitrogen coordination strategy, a nitrogen-rich hierarchical porous Fe-N-C catalyst was successfully constructed. The uniform dispersion of particles was achieved by controlling the formation of the Fe-ZIF-8 precursor. Subsequent TA etching formed a rich mesoporous/microporous structure to improve active-site exposure. During the high-temperature pyrolysis process with melamine as the nitrogen source, a highly dispersed Fe-N X coordination structure was formed. Based on this rational design, the obtained catalyst presents a hierarchical porous structure, high nitrogen content and superior ORR activity, with a half-wave potential of 0.91 V in 0.1 M KOH solution. When applied to liquid and flexible ZABs, the catalyst delivers peak power densities of 186 mW cm −2 and 75 mW cm −2 , respectively, and cycling stability of over 1486 h is maintained in the liquid system-surpassing the performance of commercial Pt/C + RuO 2 . This research offers a fresh perspective on the design and synthesis of efficient ND-FeNC-TA catalysts and promotes the practical application of ZABs.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Duo Zhang,Ying-Nan Dou,Rui Gao,Xian-Fa Zhang,Hui Zhao,Xiao-Li Cheng,Shan Gao,Ying-Ming Xu,Li-Hua Huo
Rapid, highly sensitive detection of mustard gas is a critical requirement in public safety and national defense. However, achieving highly sensitive, ppb-level detection of mustard gas under low-power conditions remains a significant challenge. Focusing on the typical blister agent simulant 2-chloroethyl ethyl sulfide (2-CEES), a solvothermal method was employed combined with controlled thermal treatment to fabricate an ultrathin porous NiFe 2 O 4 /NiO nanosheets heterostructure sensor derived from an Fe-Ni-MOF in-situ grown on a ceramic tube in this study. This material possesses uniformly distributed intimate heterogeneous interface, a high specific surface area (95.8 m 2 ·g −1 ), and abundant surface active sites, thereby significantly enhancing its adsorption and catalytic oxidation capability toward 2-CEES. At a low operating temperature of 130 °C, the sensor demonstrates a high response of 41.5 toward 10 ppm 2-CEES, a rapid recovery capability of only 84 s, and a low detection limit of 20 ppb, along with excellent selectivity, humidity resistance, reproducibility, and long-term stability. Through systematic characterization including XPS, in-situ DRIFTS, TPD, and DFT calculations, the multi-step catalytic oxidation pathway of 2-CEES on the composite surface is elucidated, along with the mechanism by which the heterostructure enhances gas-sensing performance via band structure modulation, interfacial charge transfer, and the built-in electric field. This study offers both new materials and novel insights for the development of low-power, highly sensitive sensors for trace detection of chemical warfare agents.
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高影响因子
危险品化学品经营许可证（带存储）