CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Hongliang Fu,Qiaowei Wang,Shaocong Zhan,Guanjie Xue,Yue Lian,Yongfeng Hu,Jing Zhao,Huaihao Zhang
The rational design of electrocatalysts with high catalytic activity and outstanding corrosion resistance is of great significance for achieving water/seawater oxidation. In this work, a three-dimensional microrod C, N-FeNbO 4 /NF was successfully synthesized for the first time via hydrothermal approach integrated with in-situ strategy to construct more 001 crystal planes. Specifically, fluoride ions (F − ) coordinate with Fe/Nb and selectively adsorb onto FeNbO 4 (001) crystal plane. During liquid-phase nucleation process, the oxide further crystallizes along z-axis into microrod. Furthermore, the abundant C and N sources from solutions are incorporated into FeNbO 4 lattice by in-situ doping, thus significantly enhancing intrinsic electrical conductivity and catalytic activity. Meanwhile, the C, N-FeNbO 4 deposits on largely conductive nickel foam (NF), offering water/seawater oxidation under high current density. According to density functional theory (DFT) calculations, the model of in-situ constructed C, N-FeNbO 4 (001) crystal plane displays large carrier concentration and more mobile electrons. In-situ infrared spectroscopy suggests that C, N-FeNbO 4 /NF hosts multiple types of catalytic active sites, and confirms oxygen evolution reaction (OER) progress by adsorption evolution mechanism. From in-situ differential electrochemical mass spectrometry, the OER product of C, N-FeNbO 4 /NF is O 2 ( m / z = 32), showing large O 2 evolution efficiency. The “in-situ derivatization–functional synergy” strategy imparts good electrocatalytic performance to C, N-FeNbO 4 /NF. In 1 M KOH and natural seawater, their overpotentials, with just 325 mV and 339 mV individually, can be acquired under 100 mA cm −2 current density. Depending on Tafel curve, the C, N-FeNbO 4 /NF offers strong corrosion resistance (corrosion potential: −0.17 V). Besides, it retains 96.5% initial activity after operating 100 h at 100 mA cm −2 current density in natural seawater.
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Journal of Sustainable Cement-Based Materials
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2025
·
IF 4.2
Kun Wang,Jinjun Guo
Structural polymerization is a primary factor driving intrinsic property changes in calcium silicate (aluminate) hydrate (C–(A)–S–H). However, the mechanisms by which erosive media induce structural polymerization of C–(A)–S–H gel during the service life of cement-based materials remain unclear. This study investigates the effects of both alkaline and acidic sulfates on the composition and microstructural evolution of C–(A)–S–H through various physical and microstructural analyses. The findings indicate that dehydration condensation reactions of Si–OH groups, resulting from decalcification and carbonation processes, are the main contributors to the polymerization silicate tetrahedra. As the aluminum phase increases, the leaching of Al[IV] from the C–(A)–S–H gel after sulfate erosion becomes more pronounced, leading to a tendency for the original silicate–aluminate chain structure to undergo polymerization and reconstruction. Furthermore, aluminum can only promote the polymerization of silicate tetrahedra within a specific range. This study provides a theoretical foundation for regulating concrete microstructure and optimizing its durability.
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ChemSusChem
·
2026
·Vol. 19
·期 7
·e70598
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IF 5.9
Jiawen Li,Lu Hao,Fangge Cheng,Mansor Hussain,Yuan Fu,Xinyi Ma,Jia Liu
Platinum-based catalysts are the core components for methanol oxidation reaction (MOR) in direct methanol fuel cells (DMFCs). Although platinum catalysts on nitrogen-doped carbon (NC) show promising MOR activity, the coupled variation between Pt and NC during synthesis obscures their individual contributions. Herein, a solid-phase interface reaction (SIR) successfully decouples their interactions, clarifying the role of each component. We define the ripple effect as the long-range electronic modulation induced by Pt–N coordination, which modulates the electronic state of Pt active sites in a long-range manner and thus significantly accelerates MOR reaction kinetics. Based on this, a metal-free catalytic promoter was developed. When combined with commercial 5 wt% Pt/C, the resulting Pt/C@NC-6hr composite exhibits 1.67 times and twice the mass activity of 5 and 20 wt% Pt/C. Furthermore, statistical results indicate that the mass activity derived solely from the Pt on NC is 4.74 times higher than that of the original 5 wt% Pt/C catalyst, demonstrating a remarkably substantial activity enhancement. After 3600 s chronoamperometry at 0.75 V (vs. RHE), it maintains superior current density. This work elucidates the mechanism of microenvironment-enhanced Pt catalysis via the ripple effect and offers a practical strategy for improving commercial Pt/C. Graphical Solid-phase interface reaction triggers Pt nanoparticle migration, while the resulting Pt-N coordination induces a a long-range electronic modulation effect (ripple effect) that significantly accelerates methanol oxidation reaction kinetics.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2026
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IF 5.4
Sheng Huang,De Sun,Zaoyuan Li,Donghua Su
A multi-site adsorption ultra-high-temperature retarder (PAINDP) bearing sulfonic, carboxylic, and phosphonic acid groups was successfully synthesized. • PAINDP exhibits excellent overall performance and effectively prolongs cement slurry thickening time at 240 °C. • At ultra-high temperatures, PAINDP remains stably adsorbed on the C3S surface via –PO₃²⁻ and partial –COO⁻ groups. • PAINDP achieves stable multipoint adsorption on the cement surface, effectively coating the cement particles. To address the high-temperature degradation of conventional AMPS-based retarders and the narrow dosage window of small-molecule phosphonates in ultra-deep well cementing, a novel phosphonate-containing polymer retarder (PAINDP) with a multi-site adsorption architecture was designed and synthesized. FTIR and ^1H NMR analyses confirmed the successful synthesis of PAINDP. TGA and in situ FTIR results further demonstrated that the carboxylate and phosphonate adsorption groups remained stable below 260 °C, indicating good thermal stability. Cement-slurry thickening tests showed that, at 240 °C, the addition of 6.9% PAINDP extended the thickening time to 408 min, while maintaining low temperature sensitivity and dosage sensitivity. Mechanistic investigations revealed that the phosphonate groups and part of the carboxylate groups in PAINDP formed stable interactions with Ca sites on the C 3 S surface, thereby maintaining effective interfacial adsorption under high-temperature conditions and providing the cement slurry with sustained and stable retardation performance. This work provides a molecular design strategy and theoretical basis for developing high-temperature polymer retarders suitable for ultra-deep well cementing. Download: Download high-res image (418KB) Download: Download full-size image
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高影响因子
CARBON
·
2026
·
IF 12.7
Tingwen Sun,Zijing Dong,Ziyue Yan,Hailin Wei,Yingnan Wu,Ye Hu,Jie Dong,Chao Zhi,Runjun Sun
Dual-shelled CoFe@C@PPy fibers are fabricated via microwave hydrothermal and in situ pyrrole polymerization. • PPy loading tunes magnetic-dielectric balance to optimize impedance matching. • Max RCS reduction hits 37.6 dB m² at 35°, RCS <−10 dB·m² for |θ|≥ 4°. • 134.2° contact angle brings excellent hydrophobicity and moisture resistance. The development of microwave absorbing materials (MAMs) with both wide-angle radar stealth capability and moisture resistance has become an urgent requirement for practical deployment. In this work, CoFe@C precursors are rapidly prepared via a microwave-assisted hydrothermal method, followed by in situ polymerization of pyrrole (Py) to construct dual-shelled CoFe@C@PPy hybrid fibers with different PPy loadings. The dual-shell architecture enables systematic regulation of the magnetic-dielectric balance and impedance matching. At an ultrathin thickness of 2.1 mm, the optimal sample achieves a minimum reflection loss (RL) of −52.06 dB at 13.14 GHz and a maximum effective absorption bandwidth (EAB) of 5.92 GHz. More importantly, wide-angle (0–90°) radar cross-section (RCS) simulations reveal outstanding suppression capability, with a maximum RCS reduction of 37.6 dB m 2 at an incident angle of 35°, demonstrating stable performance under oblique illumination in real radar detection scenarios. In addition, the optimal sample exhibits a water contact angle of 134.2°, showing good anti-humidity performance. This work provides a strategy for the design of dual-shelled microwave absorbers with excellent wide-angle radar cross-section reduction through interfacial polarization engineering. Download: Download high-res image (473KB) Download: Download full-size image
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Biomolecules
·
2026
·Vol. 16
·期 6
·890
·
IF 5.6
Xiaoyu Sun,Chunguang Cui,Guangrong Huang,Xiaoli Zou,Shaofang Yu,Xin Du,Xia Xu,Jine Chen,Xingjian He,Yongqiang Wang,Linbao Zhu
C-type lectins (CTLs) are proteins with carbohydrate-recognition domains. These macromolecules interact with pathogen components, thereby playing important roles in the immune system. Current studies indicate that silkworm CTLs are involved inBombyx morinucleopolyhedrovirus (BmNPV) infection. Nevertheless, the molecular mechanisms through which these CTLs affect viral infection remain unclear. In this study,B. mori C-type lectin 16(BmCTL16) was identified in the silkworm. Its expression was significantly downregulated upon BmNPV infection. Functional assays showed that BmCTL16 overexpression suppressed BmNPV proliferation, whereas its knockdown enhanced BmNPV proliferation. Protein–protein interaction assays confirmed that BmCTL16 interacts with BmNPV protein Bm9 in the cytoplasm. Notably, BmCTL16 promoted the degradation of Bm9 via the ubiquitin–proteasome system. Knockdown of Bm9 by siRNA significantly reduced BmNPV proliferation, confirming that Bm9 is the key target for BmCTL16 to exert its antiviral function. Collectively, this study reveals a novel CTL-mediated antiviral mechanism. BmCTL16 interacts with Bm9 and promotes its ubiquitin–proteasome degradation, thereby inhibiting viral proliferation. Furthermore, BmNPV evades this host defense by downregulating BmCTL16 expression. These findings enhance our understanding of silkworm CTL-mediated antiviral defense and offer novel perspectives on host–virus interactions inB. mori.
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PubMed
高影响因子
Nature Communications
·
2026
·
IF 18.1
Zhao Jun,Yang Jianlong,Wang Duanda,Zhang Huanrong,Jia Qianqian,Zhang Lei,An Zhenguo,Xue Mianqi,Xie Haijiao,Ma Wangjing,Zhang Lu,Zhao Sui,Tang Junwang
The catalytic upcycling of plastic mixtures into H 2 and carbon nanotubes (CNTs) represents a transformative strategy for advancing plastic management and the circular economy. Herein, an in-situ constructed high-performance FeNi/Ni/C catalyst combined with prompt microwave catalysis enables efficient conversion of LDPE-PVC, LDPE-HDPE-PP-PS-PVC-PTFE and landfilled waste mixture into valuable H 2 and CNTs, resulting in near-quantitative atom economy (i.e., H 2 and carbon efficiencies are nearly 100%) together with H 2 and CNTs yields reaching >922 mmol g -1 catalyst and >10600 mg g -1 catalyst , respectively. Furthermore, this microwave catalysis strategy presents an excellent stability (>35 cycles) via Cl/F-based regeneration and energy efficiency (80% reduction vs. traditional thermal catalysis), alongside a high turnover number of 107.6 mol carbon mol -1 NiFe . Fundamentally, the Ni species contribute to C-H breaking, and Fe is beneficial for CNT formation during plastic decomposition. Here, we show a cost-effective platform for upcycling of chlorinated/fluorinated plastic mixtures, aligning with resource circularity objectives.
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PubMed
高影响因子
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
·
2026
·Vol. 101
·期 6
·1263-1272
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IF 2.7
Zahid Iqbal,Jia-Yao Gao,Meng-Meng Wang,Wen-Fang Cai,Yun-Hai Wang
BACKGROUND The environmental persistence and resistance-promoting potential of tetracycline demands an efficient catalytic system capable of its complete oxidation. Herein, a bamboo derived Fe-N co-doped activated biochar (designated as Fe-N/C-A-2P) was engineered by two-step synthesis strategy to activate H 2 O 2 in a heterogeneous Fenton system for efficient tetracycline (TC) degradation. RESULTS The catalyst under optimized conditions (catalyst dosage = 0.5 g L −1 , pH = 3, H 2 O 2 concentration = 300 mg L −1 , temperature = 25 °C, and TC = 70 mg L −1 ) achieved about 90% TC removal within 60 min. It exhibited significantly enhanced reaction kinetics and sustained performance over multiple cycles with minimal iron leaching, indicating strong Fe retention and preserved stability. Radical quenching analysis confirmed a dual oxidative route, involving both radical (·OH and O 2 · − ) and non-radical ( 1 O 2 ) mechanism for TC degradation. The catalyst displayed strong resistance to common inorganic anions and humic substances, highlighting its applicability beyond idealized conditions. CONCLUSION These findings demonstrate that Fe-N/C-A-2P catalyst serves as an efficient heterogeneous Fenton catalyst for removal of TC, providing a feasible approach for mitigating antibiotic contamination in aqueous media. © 2026 Society of Chemical Industry (SCI).
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.6
Yaru Li,Jun wang,Yaojin Duan,Tao Jin,Yukun Bai,Haoran Shi,Ihar Razanau,Yongpeng Ren,Kunming Pan
Ru-decorated graphitic carbon-encapsulated Ni₃Fe particles are embedded in hollow carbon nanofibers as an electrocatalyst. • Graphitic carbon enhances alloy conductivity and hollow porous CNFs facilitate electrolyte penetration and bubble detachment. • Ru nanoparticles reconstruct electronic structure and optimize HER/OER intermediate Gibbs free energies. • The Ru/Ni₃Fe@C/CNF composite accelerates both OER and HER kinetics and achieves outstanding long‑term catalytic stability. Nickel‑iron intermetallic Ni 3 Fe represents a low-cost oxygen evolution reaction (OER) electrocatalyst, yet sluggish hydrogen evolution reaction (HER) kinetics, severe particle aggregation and inferior alkaline stability greatly limit its bifunctional water-splitting application. Hierarchical hollow N-doped carbon nanofiber supported Ru/Ni 3 Fe@C core-shell heterostructures (Ru/Ni 3 Fe@C/CNF) are fabricated via coaxial electrospinning, high-temperature carbonization and liquid-phase Ru reduction. Hollow N-doped carbon nanofibers serve as conductive porous scaffolds, where graphitic carbon shells encapsulate Ni 3 Fe nanoparticles and evenly dispersed Ru nanoparticles form heterointerfaces for electronic regulation. Characterizations confirm carbon-triggered Ni 3 Fe lattice expansion, strong Ru-Ni/Fe charge transfer, and in-situ formation of NiOOH/FeOOH active sites under OER conditions. Electrochemical measurements in 1 M KOH deliver 61 mV HER and 240 mV OER overpotentials at 10 mA cm −2 , outperforming Ni 3 Fe@C/CNF and commercial Pt/C/RuO 2 . Elevated double-layer capacitances (38.9 mF cm −2 for HER, 37.3 mF cm −2 for OER) and lowered charge transfer resistance demonstrate abundant exposed active sites. Benefiting from carbon confinement, 83% and 80% initial activity are maintained after 40 h HER and OER operation, respectively. The symmetric electrolyzer attains a low cell voltage of 1.64 V at 10 mA cm −2 with 92% activity retention over 100 h. Density Functional Theory (DFT) calculations confirm combined carbon encapsulation and Ru decoration upshift Ni 3 Fe d-band center, reduce water dissociation barrier to 0.46 eV and balance H ⁎ /OOH ⁎ adsorption to accelerate catalytic kinetics. This work develops an integrated interface engineering strategy for high-efficiency durable non-noble bifunctional electrocatalysts. The catalyst consists of Ru nanoparticles decorated on graphitic carbon-encapsulated Ni 3 Fe alloy nanoparticles embedded in hollow porous carbon nanofibers (CNFs). Benefiting from its optimized electronic structure, boosted charge transfer capability, and favorable structural stability, the Ru/Ni 3 Fe@C/CNF catalyst demonstrates impressive dual functionality in both OER and HER. Download: Download high-res image (116KB) Download: Download full-size image
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APPLIED ORGANOMETALLIC CHEMISTRY
·
2025
·Vol. 39
·期 11
·e70420
·
IF 0
Hui Bai,Guyu Zhang,Fengqin Tang,Lili Huang,Mingxia Tian,Libing Hu,Zhenghang Qi,Jianhui Jiang
Developing porous-structured organic semiconductor photocatalysts with high charge transfer efficiency is crucial for solar energy utilization, yet remains challenging in pollutant remediation. Herein, an S-scheme C-ZnO/B-g-C 3 N 4 photocatalyst with oxygen vacancies was fabricated through modified biomass-derived C doping for methylene blue (MB) degradation. The optimized catalyst achieved 97.8% degradation efficiency within 70 min under visible light. UV-DRS analysis revealed that C doping narrowed the bandgap and enhanced visible-light absorption. XPS results confirmed the S-scheme charge transfer pathway in C-ZnO/B-g-C 3 N 4 . The synergistic effects of C doping and oxygen vacancies significantly improved charge separation and facilitated S-scheme heterojunction formation. The catalyst exhibited superior photocatalytic performance in alkaline conditions and maintained excellent recyclability. Radical trapping experiments identified the primary reactive species as h + > ·O 2 − > ·OH in descending order of contribution. This work provides a promising strategy for solar-driven pollutant remediation by combining biomass-derived carbon modification with S-scheme heterojunction engineering.
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IONICS
·
2026
·
IF 3.4
Zhang Lingwen,Qin Wenqing,Long Jifa,Xiao Qi,Huang Suping
The persistent shuttle effect of lithium polysulfides (LiPSs) remains a major bottleneck hindering the widespread commercialization of lithium-sulfur (Li-S) batteries. Among the proposed solutions, MgO@carbon (MgO@C) composite interlayers have emerged as a highly effective strategy for suppressing LiPS migration through chemical adsorption and catalytic conversion. However, conventional synthesis routes for these materials often rely on costly and intricate chemical processes, limiting their scalability. In this study, we present an eco-friendly and cost-effective approach by fabricating MgO@C composites from dye sludge-derived carbon. The resulting nanoporous MgO@C interlayer exhibits strong hydrophilicity and abundant active sites, enabling efficient polysulfide immobilization via chemisorption while simultaneously accelerating sulfur redox kinetics. This dual functionality not only mitigates the shuttle effect but also enhances battery capacity and cycling stability - delivering exceptional electrochemical performance. This work offers a strategic approach for converting waste into valuable materials, paving the way for the scalable fabrication of high-performance interlayers in practical Li-S battery applications.
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JOURNAL OF ALLOYS AND COMPOUNDS
·
2023
·
IF 6.2
Xiaoxi Yu,Xiaocui Wu,Fang Guo,Jingping Liu,Qingshan Zhao
As a promising advanced oxidation process , photo-assisted peroxymonosulfate (PMS) activation for wastewater treatment has attracted widespread attentions. However, rational design of synergetic and recyclable catalysts for PMS photo-activation remains a big challenge. In this study, a carbon layer-coated amorphous CoO x supported on graphitic carbon nitride (CoO x @C/g-C 3 N 4 ) composite was fabricated to drive visible-light-assisted activation of PMS for efficient organic pollutant degradation. Amorphous CoO x nanoparticles were in-situ grown on two-dimensional g-C 3 N 4 substrate, among which a carbon layer serves as a high-speed electron transmission channel, facilitating the separation of photogenerated electron-hole pairs and accelerating the Co 3+ /Co 2+ redox cycle. Simultaneously, the carbon layer provides a protective film to suppress Co leaching, thereby improving the catalytic activity and reusability. Owing to the unique heterostructure and synergetic effect, the optimized 6% CoO x @C/g-C 3 N 4 composite exhibits superior catalytic efficiency and excellent cycling stability towards the degradation of various organic pollutants, which displays nearly 100% elimination of tetracycline (TC) within 80 mins. The h + , SO 4 •- and •OH are determined as the main contributors in the visible light-assisted PMS activation system, and the possible catalytic mechanism is also proposed. This work demonstrates a feasible strategy for constructing synergetic and effective photo-activation PMS catalysts for water remediation.
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