COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
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2026
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IF 8.2
Wen Si,BingYang Ma,LinLin Hou,Shutong Tian,Guanglan Liao,Li Fang,Guoqing Xin,Hu Long,Tielin Shi
Shrinking device dimensions and escalating heat fluxes bottleneck chip thermal management. Boron nitride nanotubes (BNNTs) combine high thermal conductivity with a wide band gap, making them attractive fillers for composites. However, deployment of BNNTs remains constrained by limited production throughput and associated cost barriers. Here, an ammonia-activated high-pressure laser ablation strategy with non-consumable Cu mesh assistance (A-HPLA-CuM) is developed for BNNT synthesis, yielding BNNT-rich fibrous product at 692.7 mg h −1 using a scalable setup. The obtained BNNTs exhibit high crystallinity, with a mean diameter of 9 nm and a mean wall number of 7. Compared with conventional laser ablation and Cu mesh-assisted synthesis in N 2 , ammonia activation is associated with a higher production rate while maintaining product quality. The improvement is likely associated with NH 3 -derived B-N–H intermediates that may facilitate B-N conversion, together with Cu mesh assistance that may help maintain a favorable local reaction environment. As a proof-of-concept validation, the as-synthesized BNNTs were evaluated in composite films. At 50 wt% BNNT loading, the film delivers an in-plane thermal conductivity of 15.9 W m −1 K −1 and reduces temperature by 4.67 ℃ relative to the BN-filled control after 30 s. This work demonstrates A-HPLA-CuM as a scalable route for BNNT synthesis.
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高影响因子
Journal of Environmental Sciences
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2026
·
IF 6.5
Jiaqi Ding,Xiaolin Xiong,Huanhuan Shi,Yuxiao Mu,Haojun Ji,Jingwen Wang
pH switches reactive species in ZVC/PAA: HO • at pH 3, Cu(III) at pH 7. • Surface Cu x O shell is the key site governing the generation of reactive species. • HO • -dominated system rapidly removes diverse sulfonamides with non-selectivity. • Cu(III) system selectively degrades sulfonamides containing heterocyclic rings. • ZVC demonstrates higher reusability and lower Cu ions leaching at pH 7. Zerovalent copper (ZVC) has garnered considerable attention in Fenton-like reactions, but the surface properties of ZVC that regulate reactive species (RSs) generation remain elusive. Herein, we systematically investigated the pH-dependent regulation of hydroxyl radical (HO • ) and high-valent copper (Cu(III)) generation during peracetic acid (PAA) activation by ZVC for the degradation of sulfonamide antibiotics (SAs). Characterization results revealed that ZVC has a core-shell structure, in which the surface copper oxide (Cu x O) layer serves as the primary active site. Theoretical and experimental analyses elucidated that pH modulates the surface properties of ZVC. At pH 3, the protonation of Cu x O promotes the generation of HO • in the ZVC/PAA system; conversely, under neutral conditions (pH 7.0), the unprotonated state favors the formation of Cu(III) as the dominant RSs. This trade-off between HO • and Cu(III) generation leads to distinct degradation performance for SAs degradation. HO • -dominated system achieved non-selective removal (>96 %) of various SAs; whereas the Cu(III) pathway selectively degraded SAs with heterocyclic rings at pH 7. The Cu(III) pathway outperformed the HO • system in terms of humic acid tolerance and catalyst recyclability in the ZVC/PAA process. This work clarifies the decisive role of surface protonation of ZVC in steering HO • versus Cu(III) pathways and provides a theoretical basis for designing pH‑specific Fenton-like reaction processes. Download: Download high-res image (355KB) Download: Download full-size image
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CHEMICAL ENGINEERING JOURNAL
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2026
·
IF 12.5
Ying Zhang,Shuang Wu,Miao Fei,Guoqing Wang,Khan Khalid,Bin Lin,Wuliang Feng,Xingbao Zhu,Yufeng Zhao,Jiujun Zhang
Electron-ion confinement enabled by 3D Cu and Li-Si alloy for lithium metal batteries. • Symmetric cells sustain 4.0 mA/cm 2 with ultralow polarization over 1200 h lifespan. • NCM811 full cells retain 80.70% capacity after 500 cycles at 2C with high loading. • The lithiophilic Li-Si alloy guides uniform Li + flux suppressing dendrite growth. • Pouch cells achieve 83.87% retention after 300 cycles validating practical scalability. Lithium metal batteries with ultrahigh energy density are promising for next-generation energy storage, but their practical deployment are severely hindered by uncontrolled dendrite growth and extreme volumetric instability. Here, we propose electron-ion confinement enabled by 3D Cu framework and lithiophilic Li-Si alloy (3D-LS) for high-performance lithium-metal batteries. A new-type composite anode based on commercial 3D Cu framework and lithiophilic Li-Si alloy is successfully designed and produced via a facile calendering process, which enables electron-ion confinement to suppress dendrite proliferation and mitigate volume expansion-induced stress. 3D conductive Cu framework establishes continuous electronic transmission pathways, while lithiophilic Li-Si alloy regulates uniform Li + flux distribution, synergistically constructing a robust electron-ion confinement structure. Symmetric cell with 3D-LS anode exhibits ultra-long cycling stability over 1200 h at 0.2 mA/cm 2 and maintain robust performance at 4.0 mA/cm 2 . When assembled with industrialized LiNi 0.8 Co 0.1 Mn 0.1 O 2 (NCM811) cathode, full cell retains 80.70% capacity after 500 cycles at 2C, with pouch-cell prototypes further validate its practical scalability. These findings provide a universal electron-ion confinement route to develop ultrastable high-energy-density lithium-metal batteries. Download: Download high-res image (155KB) Download: Download full-size image
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高影响因子
CHEMICAL ENGINEERING SCIENCE
·
2025
·
IF 4.3
Rushuo Yang,Qi Liu,Zhe Liu,Jiaxuan Wang,Aining Zhang,Yongjun Liu
To effectively degrade phenolic pollutants, metal Cu was incorporated into sludge-based biochar (SBC), thereby creating a Fenton-like catalyst designated as Cu/SBC. This catalyst was combined with H 2 O 2 to establish a Fenton-like reaction system specifically designed for the catalytic degradation of phenol. In the experiment, the degradation efficiency of phenol was used as the evaluation index, and the optimal preparation conditions of Cu/SBC were screened. The results demonstrated that in Cu/SBC, SBC could be used as a carrier for electron transfer, while the addition of Cu was the key to enhance the performance of the catalyst. Under the catalysis of Cu/SBC, phenol in the concentration range of 100–350 mg/L were effectively degraded, achieving a 100 % degradation efficiency within 20 min. The physical and chemical characterization revealed that the surface of the material was uniformly covered with metal groups and a variety of functional groups, resulting in a porous structure with more abundant cavities, larger specific surface area and higher adsorbed oxygen content than the original sludge. The reaction mechanism analysis revealed that free radicals (such as •OH, •O 2 − , etc.) were produced in the Cu/SBC-H 2 O 2 Fenton reaction system, with •OH being the primary radical responsible for phenol degradation. In addition, a variety of intermediate products of phenol degradation were detected, and the possible mechanism of phenol degradation in this kind of Fenton system was proposed. In conclusion, the catalyst developed in this study exhibits excellent catalytic performance and provides valuable insights for research on the degradation of phenolic wastewater.
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高影响因子
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
·
2025
·
IF 3
Zhihui Xu,Jing Li,Xiaoling Peng,Shan Tao,Jingcai Xu,Bo Hong,Xinqing Wang
The present study utilized Y 3 Fe 5 O 12 (YIG) ferrites as a coating on Fe-Si-B-Cu-Zr nanocrystalline magnetic powder to fabricate soft magnetic composites (SMCs). The influence of YIG content and annealing temperature on the magnetic properties of Fe-Si-B-Cu-Zr/YIG SMCs was investigated. It was revealed that an appropriate amount of YIG in the composite could enhance the permeability and its resistance to DC bias, while reducing eddy current loss. The results demonstrated that the Fe-Si-B-Cu-Zr/YIG SMCs coated with 1.0 wt% YIG exhibited good comprehensive magnetic properties, with a permeability of 33.8, 86.1 % retention under a DC bias of 100 Oe, and a 53.1 % reduction in eddy current loss to 13.86 mW/cm 3 at 500 kHz and 10 mT. Besides, the optimal annealing temperature for achieving decrease core loss and maximum permeability was determined to be 500℃ for the Fe-Si-B-Cu-Zr/YIG SMCs. This study demonstrates a promising coating material to enhance the high-frequency magnetic properties of nanocrystalline soft magnetic composite.
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高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2025
·
IF 5.4
Yaning Li,Yue Wang,Hongchao Ma
The tumor microenvironment (TME), characterized by hypoxia, limited H 2 O 2 availability, and elevated glutathione (GSH) concentrations, challenges reactive oxygen species (ROS)-based therapies. To address these, we developed a GOx@Cu-ZIF-8/DOX (GCZD) nanoplatform combining chemotherapy (CT), chemodynamic therapy (CDT), and starvation therapy (ST). This system utilizes Cu-incorporated ZIF-8 (Cu-ZIF-8) as a versatile carrier to load glucose oxidase (GOx) and doxorubicin (DOX). Under acidic TME conditions, GCZD disintegrates, releasing GOx, Cu 2+ , and DOX. GOx catalyzes intratumoral glucose oxidation, producing gluconic acid and H 2 O 2 to achieve a triple-therapeutic effect. Gluconic acid maintains a weakly acidic environment for continuous GCZD degradation. Glucose depletion induces metabolic starvation. Generated H₂O₂ serves as substrate for Cu 2+ -mediated Fenton-like reactions, boosting ROS production. Cu 2+ exhibits catalytic activity, efficiently converting TME and GOx-generated H 2 O 2 into cytotoxic ·OH. Increased ROS concentration enhances biological macromolecule oxidation damage, intensifying CDT. Additionally, Cu 2+ oxidizes GSH to form GSSH and Cu + . This inhibits GSH-mediated ROS degradation and leverages excellent Fenton-like activity of Cu + to further enhance CDT. Simultaneously, DOX exerts chemotherapeutic effects by intercalating into DNA and inhibiting topoisomerase II, blocking tumor cell proliferation. This integrated approach, combining enhanced ROS generation, tumor cell metabolic intervention, and DNA damage, demonstrates enhanced antitumor efficacy by simultaneously targeting multiple cancer cell vulnerabilities.
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高影响因子
Journal of Energy Chemistry
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2025
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IF 14.9
Rui Zou,Menghui Liu,Linlin Wu,Chenyang Shen,Zhuoshi Li,Xinbin Ma,Maoshuai Li,Chang-jun Liu
The preparation and application of supported gold and copper catalysts are fundamentally and practically very important. Herein, we confirm that the Au-Cu promoted In 2 O 3 catalyst demonstrates a significant electronic metal-support interaction (EMSI), which plays a critical role in CO 2 hydrogenation to methanol and leads to significantly improved activity, compared to the mono-metallic Au and Cu promoted In 2 O 3 catalysts. This interaction arises from electron transfer between the oxygen deficient In 2 O 3 support and the bimetallic clusters, rendering both Au and Cu clusters positively charged. The presence of Cu δ+ stabilizes and optimizes the content of oxygen vacancies, leading to a more pronounced positive charge on Au clusters (Au δ+ ). The ability to activate H 2 is thus enhanced. CO adsorption on Au-Cu/In 2 O 3 is also stronger than Au/In 2 O 3 . This results in higher methanol selectivity of Au-Cu/In 2 O 3 , with which CO hydrogenation pathway is taken for CO 2 hydrogenation to methanol. The enhanced H 2 activation and stronger CO adsorption over Au-Cu/In 2 O 3 are key factors in boosting the activity for methanol formation from CO 2 hydrogenation.
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高影响因子
MICROCHEMICAL JOURNAL
·
2025
·
IF 5.1
Ziwen Ding,Feiyu Zhang,Haotian Zheng,Yunhe Zhao,Mengfei Ma,Man Zhang,Hongpeng Li,Guodong Li,Siqi Li
Hydrogen sulfide (H 2 S), emerges as a toxic gas that poses significant threats to human life and health, even at low concentrations (100 ppb). Therefore, the detection and monitoring of H 2 S are crucial for ensuring mining safety. Herein, zinc stannate (Zn 2 SnO 4 , ZTO) was synthesized using hydrothermal method, and copper-doped zinc stannate material (xCuZ) were synthesized by in-situ derivation of metal organic frameworks (MOFs). A ppb-level H 2 S gas sensor with rapid response and recovery was developed. The material with a Cu addition of 20 wt% (20CuZ) exhibited the optimal performance, with a sensitivity of 8 to 10 ppm H 2 S at 275 °C, which was approximately 8 times higher than that of pure ZTO, and surprisingly, exhibited high signal-to-noise ratio and rapid response and recovery characteristics (21 s/27 s) at ultra-low concentrations of 10 ppb. The improvement in gas sensing performance can be primarily attributed to the significant adsorption capability of Cu for H 2 S. Furthermore, the incorporation of Cu into the ZTO material induces lattice defects and increases the concentration of oxygen vacancies, thereby enhancing the gas sensing performance. The sensor produced in this study has the potential to mitigate the risks with mining operations while advancing the development of gas sensor technology.
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高影响因子
Molecular Catalysis
·
2025
·
IF 4.9
Yongli Chang,Weiling Liu,Yang Chen,Yong Zhang,Ruoyu Li,Xiaoyang Xu,Yu Tang,Lizhi Wu,Huibo Zhao,Li Tan
Tuning metal-support interactions in catalysts represents a promising strategy for optimizing the catalytic activity of CO 2 hydrogenation. Here, CuZnZr ternary catalysts with varied interfacial structures were fabricated by altering the metal loading sequence to elucidate the interactions between different counterparts. Compared to reference catalysts with different interfaces (Cu-ZnZr, Zn-CuZr and Zr-CuZn), CuZnZr synthesized via the coprecipitation method (CZZ) displays the highest catalytic performance, achieving a CO 2 conversion rate of 13.3 %, methanol selectivity of 71.3 %, and a STY of 12.2 mmol MeOH ·g cat -1 ·h -1 under optimal conditions. Extensive characterization results indicate that this exceptional activity originates from the synergistic optimization of both structure and reaction mechanism, driven by the interface confinement effect (ICE) enabled by abundant interfacial sites. Specifically, the surface of CZZ shows high density of highly dispersed Cu 0 nanoparticles and rich oxygen vacancy sites, which is beneficial to the activation of H 2 and the adsorption of CO 2 . In-situ DRIFTS further revealed that, compared to reference catalysts, CO 2 hydrogenation on CZZ follows both the HCOO* and COOH* pathways, leading to a substantial improvement in overall catalytic activity. In summary, this study provides a deeper understanding of the ICE and their impacts on catalytic performance, offering a valuable theoretical insight for the design of high-performance catalysts in future research.
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高影响因子
Inorganics
·
2026
·Vol. 14
·期 2
·43
·
IF 3
Huili Ren,Chenxia Gao,Siqi Huang,Libo Du,Shuang Liu,Xi Cao,Yuguang Lv
The proliferation of antibiotic resistance urgently demands the development of novel non-antibiotic-dependent antimicrobial strategies. Metal–organic framework material ZIF-8, with its tunable structure and excellent biocompatibility, shows great promise in the field of photocatalytic antibacterial applications. However, pure ZIF-8 suffers from limitations such as a narrow light absorption range and high carrier recombination rates. Doping ZIF-8 with transition metals such as cobalt or copper, herein denoted as M-ZIF-8 (M=Co, Cu), can significantly broaden its photoresponsive spectrum, promote reactive oxygen species (ROS) generation, and enable controlled metal ion release, thereby enhancing antimicrobial performance. Nevertheless, the release of metal ions also introduces potential biotoxicity concerns, limiting practical applications. This paper systematically reviews the trade-off between the photocatalytic antibacterial mechanism and biotoxicity of metal-doped M-ZIF-8 (M=Co, Cu), focusing on material design principles, antibacterial pathways, toxicity manifestations and mechanisms, as well as optimization strategies for “enhancing efficacy while reducing toxicity.” It further proposes future research challenges and directions in mechanism elucidation, smart material development, standardization, and industrialization to advance the safe and efficient application of these materials in medical and environmental fields.
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Surfaces and Interfaces
·
2026
·
IF 6
Jiayuan Zhang,Zhenlong Liu,Yu Liu,Liping Jiang,Caixia Ma,Lei Yang,Zunyuan Xie,Jizhen Li,Guofang Zhang
Transition metal oxides exhibit inherent catalytic activity for ammonium perchlorate (AP) decomposition; however, their performance is limited by the scarcity of accessible active sites and low conductivity. Therefore, morphology-directed structural design and interfacial engineering are highly desirable. In this study, two-dimensional (2D) MCo 2 O 4 nanosheets ( M = Fe, Ni, Cu, and Cr) were synthesized via a thermal expansion method and subsequently combined with three types of carbon materials C x (C x = rGO, CNTs, and g-C 3 N 4 ) to construct 2D MCo 2 O 4 /C x composites. Structural analyses demonstrate that the intimate interfacial coupling between 2D MCo 2 O 4 nanosheets and carbon materials effectively suppresses restacking and establishes a continuous conductive network. More importantly, strong interfacial coupling enables effective electronic modulation at the heterojunction, resulting in an optimized charge distribution and enhanced interfacial electron transfer. Among all catalysts, 5 wt. % FeCo 2 O 4 /rGO-1 demonstrates the most notable catalytic activity for AP decomposition, reducing its peak temperature in the high-temperature decomposition stage by 137.4 °C and increasing its heat release by 736.33 J·g⁻ 1 . Electrochemical tests confirm that accelerated interfacial charge transfer enhances AP pyrolysis. Kinetic modelling, TG-FTIR-MS, and DFT calculations indicate that the 2D-2D heterointerface boosts the adsorption of the AP intermediate NH 3 and promotes its conversion into higher-valence NO 2 , while also accelerating electron transport and lowering the decomposition barrier. The synergistic effect between interfacial electron transport and the heterojunction promotes the rapid AP degradation. Based on these findings, a plausible catalytic mechanism for AP decomposition is proposed.
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高影响因子
Materials
·
2026
·Vol. 19
·期 8
·1532
·
IF 3.7
Keyu Chen,Yongming Wei,Kaihuai Duan
Highlights A novel PS-2-AB chelating resin was synthesized by grafting 2-aminobenzimidazole onto polystyrene. The resin showed Cu(II) and Ni(II) adsorption capacities of 125.04 mg/g and 157.44 mg/g, respectively. The resin maintained over 84% adsorption capacity after five regeneration cycles. To address heavy metal contamination in wastewater, this study developed a novel chelating resin (PS-2-AB) by grafting 2-aminobenzimidazole onto chloromethylated polystyrene. The resin was characterized using SEM, BET, FTIR, and XPS to confirm successful modification and analyze its structural properties. Batch adsorption tests were conducted to evaluate its removal performance for Cu(II) and Ni(II) ions. Under optimal conditions (pH 5.0–7.0, dosage: 1.0 g/L), PS-2-AB achieved maximum adsorption capacities of 125.04 mg/g for Cu(II) and 157.44 mg/g for Ni(II), which are significantly higher than those of the commercial resin D113 (44.68 mg/g for Cu(II) and 25.17 mg/g for Ni(II)) under the same conditions. Adsorption kinetics followed the pseudo-second-order model, indicating chemisorption-dominated behavior, while equilibrium data fit the Langmuir model, suggesting monolayer adsorption. Thermodynamic parameters confirmed a spontaneous and endothermic process. After five regeneration cycles, PS-2-AB retained approximately 87% (Cu) and 89% (Ni) of its original capacity, demonstrating good reusability. These results indicate that PS-2-AB exhibits markedly better adsorption performance than D113, making it a promising and cost-effective adsorbent for the efficient removal of Cu(II) and Ni(II) from aqueous media.
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PubMed
高影响因子
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