IEEE Transactions on Components Packaging and Manufacturing Technology
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2026
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IF 3.3
Guannan Yang,Dongchang Ma,Junyi Lu,Weiqiang Li,Chao Tang,Wenzhe Wang,Qiyuan Zhang,Yu Zhang,Guanghan Huang,Chengqiang Cui
This study presents a fabrication method of high-conductive and reliable embedded circuits in glass substrates through pressure-assisted sintering of copper nanoparticle paste. First, inverted trapezoidal grooves were created on glass substrates by picosecond laser modification and hydrofluoric acid etching. Then Cu particles paste with 250 nm size and 75% solid content was filled in the grooves through a two-step filling process. Finally, the samples were hot-press sintered to form conductive circuits. Using the method, embedded circuits with linewidth of 30~100 μm were fabricated on glass substrates, with a porosity of only 7.6% and a resistivity as low as 8.53 μΩ·cm. The embedded circuit structure enabled the precise linewidth control, and also enhance the mechanical interlocking of the circuit with superior adhesion, demonstrated by <5% resistance change and no detachment after tape peel tests. Compared to conventional electroplating method for circuit fabrication on glass substrates, this method eliminates the chemical residues and improves the reliability, offering a scalable solution for circuit fabrication on advanced glass substrates for 5G/6G RF components and optical modules.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2026
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IF 9.1
Haihuan Sun,Xiaoyan He,Zongcheng Yang,Xiaoqing Dou,Wenhan Fan,Chengqing Yuan,Xiuqin Bai
Biofilm formation on material surfaces is a persistent challenge in aquatic environments, creating an urgent need for sustainable catalytic antimicrobial strategies. Although ceria nanozymes with haloperoxidase (HPO)-like activity have attracted increasing attention, their practical application is limited by the low density of surface Ce 3+ sites and oxygen vacancies. Herein, defect-engineered Cu-doped CeO 2 nanozymes were developed to enhance HPO-like catalytic activity and antibacterial performance. Cu incorporation regulated the Ce 4+ /Ce 3+ redox equilibrium and promoted oxygen-vacancy formation, resulting in enhanced catalytic activity, while controlled Cu 2+ release contributed to synergistic antibacterial effects. As a result, the optimized Cu-CeO 2 nanozymes achieved approximately 99% bacterial inactivation against E. coli and 97% inhibition against Bacillus sp. at a low nanoparticle concentration of 10 mg/L, demonstrating broad antibacterial activity against representative Gram-negative and Gram-positive bacteria. Combined experimental characterization and density functional theory calculations revealed the defect-mediated mechanism underlying the enhanced catalytic performance. This work provides a defect-engineering strategy for developing ceria-based nanozymes with enhanced catalytic antibacterial performance for potential catalytic antifouling applications.
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Small
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2026
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IF 11.8
Hui Wang,Xiang Li,Zitong Jiang,Qing Xu,Qiaoqin Guo,Chaozheng He,Junjun Zhang,Yaming Liu,Mingshang Jin
Direct ethanol fuel cells are promising clean energy devices, but the difficulty in cleaving the C─C bond of ethanol leads to low C1 pathway selectivity (typically ∼10%) and incomplete energy conversion. To address this challenge, we synthesized a porous multiphase Pd-based metallene nanocatalyst co-doped with oxygen-philic Cu and W. Temperature was identified as the key factor regulating the crystal structure: low temperatures yielded amorphous phases, high temperatures produced crystalline phases, and intermediate temperatures formed the desired crystalline/amorphous mixed multiphase structure. This multiphase structure provided abundant active sites. The optimal PdCuW metallene exhibited exceptional performance for ethanol electrooxidation: a record-high C1 pathway selectivity of 72.6% (1.6 times that of undoped Pd metallene and 10.2 times that of commercial Pd/C), a mass activity of 4301.6 mA/mg Pd (4.7 times that of commercial Pd/C), and superior stability (only 7.3% activity decay vs. 67.9% for commercial Pd/C). Mechanistic studies (In situ ATR-FTIR, DFT calculations) revealed that synergistic Cu-W doping reduced the C─C bond cleavage energy barrier, enhanced OH * adsorption, and weakened the poisoning effect of intermediate CO * . The work offers a rational design strategy for high-selectivity electrocatalysts, advancing ethanol's full energy utilization and holding broad implications for Pd-based catalyst systems in energy conversion technologies.
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PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2026
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IF 6.7
Yandong Che,Qianpeng He,Aoyun Yuan,Jie Zhou,Jiacheng Ding,Tõnu Pullerits,Qian Zhang,Yanqiu Yang,Wenjie Li,Peng Song
Integrating pollutant detection and degradation into a single material platform is highly desirable for the efficient treatment of dye-contaminated wastewater. However, simultaneously achieving sensitive detection and efficient photocatalytic activity remains challenging because these functions involve distinct interfacial processes. In this work, an Ag NPs@Cu-V 2 O 5 hybrid was prepared through wet-chemical synthesis and calcination of Cu-V 2 O 5 , followed by ultrasonic coupling with preformed Ag nanoparticles. Cu incorporation modulated the local electronic environment of V 2 O 5 , while the supported Ag nanoparticles provided plasmonic SERS-active sites. XPS binding-energy shifts were consistent with interfacial electronic redistribution, FDTD simulations revealed pronounced local-field amplification around the Ag nanoparticles, and energy-level analysis indicated accessible interfacial charge-transfer pathways under 532 nm excitation. Using colorless, non-resonant 4-MBA as a control probe, the hybrid produced a higher Raman response than the Ag NP reference under equivalent Ag loading, indicating that the enhancement was not solely dependent on the molecular pre-resonance behavior of MB. The hybrid enabled MB detection down to 1 × 10⁻⁹ mol L⁻¹ , with good spatial uniformity and approximately 80% signal retention after 28 days. After correction for dark adsorption, it achieved an MB degradation efficiency of 82.3% after 60 min of visible-light irradiation and exhibited higher photocatalytic activity than pristine V 2 O 5 and Cu-V 2 O 5 . These results demonstrate a plasmonic–semiconductor platform that integrates SERS sensing and photocatalytic remediation through Ag-induced local-field amplification, Cu-related electronic modulation, and Ag/Cu-V 2 O 5 interfacial interactions.
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Materials Today Chemistry
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2026
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IF 7.4
Lin Zhang,Hai-Yan Guo,You-Qiang Yao,Lu Zhang
Pyrazine-modulated PdCu electronic structure enables selective EGOR and HER • Bimetallic synergy and N-coordination boost EG adsorption and *OH generation. • The assembled-cell achieves > 97.77% GA selectivity at ultra-low voltage. • The system requires only 2.89 kWh per m 3 for H 2 , coupled with GA upgrading. Electrocatalytic ethylene glycol oxidation (EGOR) represents a promising route for co-producing value-added chemicals and hydrogen, yet achieving high selectivity and efficiency remains challenging. Herein, we report a bifunctional N-PdCu@Ni(OH) 2 nanosheet catalyst that exhibits exceptional performance for both EGOR and the hydrogen evolution reaction (HER). The material features pyrazine-N-coordinated Pd–Cu dual-sites, where Pd serves as the main active center for EG and *OH adsorption, while Cu doping electronically modulates Pd to enhance glycolic acid (GA) selectivity and promote *H adsorption for improved HER kinetics. In a membrane-free flow cell, the catalyst enables current densities of 100 mA cm −2 at only 1.20 V, with GA selectivity exceeding 97.77% and hydrogen Faradaic efficiency near 100%. The system requires only 2.89 kWh per m 3 H 2 produced, demonstrating a viable strategy for electronic modulation in multifunctional electrocatalysis and advancing low-energy hydrogen production coupled with sustainable biomass upgrading. Download: Download high-res image (525KB) Download: Download full-size image
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Chemical Engineering Journal Advances
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2026
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IF 6.9
Xiao-Dan Liu,Xiaomin Kang,En-Peng Du,Rui-Di Sun,Jie-Shu Qian,Li Zhou
The electrocatalytic formaldehyde oxidation reaction (FOR) on copper–based catalysts enables anodic hydrogen production and serves as an alternative to the oxygen evolution reaction by lowering the voltage requirement for water electrolysis. However, Cu–based electrocatalysts are constrained by a narrow operating potential window that limits attainable current densities, while insufficient long–term stability further restricts practical application. Herein, simultaneous enhancement of activity and stability is achieved by fabricating rough copper nanosheets on nickel foam (Cu–NF). The rough copper nanosheets increase the density of accessible active sites, enabling current densities up to 500 mA·cm −2 at 0.45 V vs RHE within the limited operating potential window. Moreover, the mechanically robust nickel foam scaffold helps preserve electrode integrity during prolonged anodic operation, while the dynamic Cu 0 /Cu+ surface evolution in the catalytic layer supports sustained activity, enabling stable operation for over 200 h. This work provides a general design guideline for achieving a balanced improvement in activity and durability of copper–based electrodes for formaldehyde oxidation.
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高影响因子
NEW JOURNAL OF CHEMISTRY
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2026
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IF 2.6
Kunpeng Xue,Heng Lin,Dan Cao,Na Ma,Wei Dai,Limin Zhang
The efficient removal of perfluorooctanoic acid (PFOA) is challenging, as conventional monometallic MOFs and powdered activated carbons suffer from limited active sites, poor stability, or unfavorable morphologies. Herein, a novel spherical porous carbon (SPC) derived from Cu/Zn-BTC bimetallic MOF was synthesized via glucose-assisted hydrothermal carbonization and high-temperature pyrolysis. Featuring high sphericity, uniform pore channels, and abundant bimetallic active sites, SPC exhibits enhanced PFOA adsorption performance and water stability. The optimized SPC (5-(Cu/Zn-BTC)) achieves a maximum adsorption capacity of 480 mg/g (surpassing most reported materials), with pseudo-second-order kinetics and spontaneous exothermic adsorption behavior. Synergistic mechanisms dominate the process: Cu2+/Zn2+-carboxylate coordination (XPS verified), acidic-condition electrostatic attraction (Zeta potential supported), and hydrophobic interactions. Notably, SPC retains high adsorption efficiency after five regeneration cycles due to robust structural stability. This work exhibits certain potential application value in the field of PFOA removal from aqueous systems.
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VACUUM
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2026
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IF 4.3
Junlei Qi,Yong Xia,Zhenyu Ye,Jian Cao,Yaotian Yan
As modern electronic systems advance toward compact architectures and intensified power densities, managing heat generation and dissipation has become a central challenge affecting both device stability and functional reliability. In this study, a carbon-coated three-dimensional (3D) porous copper foam composite (CFCC) was synthesized using a combined hydrothermal and annealing process to enhance heat dissipation. Optimization studies revealed that the combination of 6 g glucose with a 600 °C annealing treatment produced the most favorable coating quality. Consequently, the CFCC exhibited an in-plane thermal conductivity of 16.3 W m −1 K −1 and a thermal diffusivity of 28.5 mm 2 s −1 , representing 39.3% and 122.7% increases over pristine copper foam, respectively. Infrared thermography confirmed significantly improved heat spreading, with the optimized composite maintaining the lowest steady-state temperature (145.8 °C) under a constant 160 °C heat load. Microstructural and mechanistic investigations indicate that the improved heat-transfer capability originates from the higher ordering of the carbon domains, the decrease in structural defects, and the strengthened Cu–C interfacial interactions. These factors collectively reduce phonon scattering, extend the phonon mean free path, and minimize interfacial thermal resistance, enabling effective three-dimensional heat conduction. Overall, the integrated hydrothermal–annealing strategy presents a controllable, scalable, and cost-effective approach for producing high-quality carbon coatings on porous metal substrates, offering substantial promise for advanced thermal management in next-generation high-power electronic systems.
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JOURNAL OF SOLID STATE CHEMISTRY
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2026
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IF 3.2
Hao Tang,Aotian Gu,Xiqing Xu,Pei Liu,Kehong Chen,Yiming Zhou,Chunhui Gong,Peng Wang,Yi Yang
Chloramphenicols (CAPs) are a class of broad-spectrum antibiotics. The widespread use of CAP has led to increasingly severe environmental residues, posing hidden and long-term hazards to human health and aquatic organisms. This study prepared the Co–Cu-carbon composite nanocatalyst Co x Cu 10-x -cnp by one-step pyrolysis of bimetallic MOFs with varying Co/Cu ratios. The catalytic performance of Co x Cu 10-x -cnp was further investigated through CAP degradation. Results indicate that the catalyst with a Co/Cu ratio of 6/4 exhibits the highest catalytic activity, removing 98% of CAP within 60 min with a corresponding rate constant of 0.13 min −1 . It also achieves complete mineralization of 62.5% of CAP. This may be attributed to the Co 2+ /Co 3+ redox pair efficiently generating highly oxidative free radicals, while the excellent catalytic activity and conductivity of copper promote redox cycling and accelerate the formation of reactive oxygen species (ROS). Thus, this study may contribute to advancing the design of bimetallic catalysts and the application of the PMS process in practical wastewater treatment.
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CHEMISTRY OF MATERIALS
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2026
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IF 7.1
Peng Wu,Yourong Shu,Yongjiang Di,Huichao He,Qian Yang,Wenrong Wang,Hanmei Jiang,Lijian Meng,Haibo Ruan,Sheng Tang,Jingguo Zhang,Tao Han
Cu@Sn core–shell nanoparticles have emerged as promising candidates for high-density electronic packaging owing to their excellent mechanical strength, electrical conductivity, and thermal stability. However, the intrinsic mismatch in the interdiffusion rates of Cu and Sn inevitably leads to the formation of severe Kirkendall voids, compromising the microstructural integrity and overall device reliability. In this work, a solid Cu@Sn core–shell nanostructure was constructed by introducing trace amounts of P during the Cu–Sn chemical displacement process, which shows an optimized Sn-to-Cu thickness ratio of ∼10%, with a Cu core of 2.65 ± 0.06 μm and an Sn shell of ∼0.29 μm. At the Sn/Cu interface, P selectively enriches on the Cu surface to form an adsorbed layer, suppressing the inward diffusion of Sn, where P promotes the in situ formation of ultrafine Cu3P nanocrystals and exerts a significant interfacial pinning effect on outward Cu diffusion and increases the vacancy formation energy. Notably, thermogravimetric analysis confirms the substantially enhanced oxidation resistance of the solid Cu@Sn nanoparticles (residual mass at 600 °C: 109.66% for Cu@Sn vs 123.54% for bare Cu). When used as soldering precursors, the P-mediated Cu@Sn solid nanoparticles form dense Cu3Sn intermetallic compound (IMC) frameworks after reflow at 300 °C, yielding void-free joints with remelting temperatures above 425 °C. This work not only elucidates the mechanism by which P-mediated interfacial engineering suppresses Kirkendall void formation but also highlights the significant potential of Cu@Sn nanoparticles for high-reliability electronic packaging, offering a promising pathway toward enhanced power density and device reliability.
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高影响因子
ENERGY & FUELS
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2026
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IF 6
Tianxiang Guo,Baijiang Liu,Gujie Yao,Xiaoqing Wang,Yanyan Feng,Da Jin,Xilai Wang,Yarong Du
The electrochemical reduction of CO2 to high-value C2 products, especially ethanol, presents a feasible approach for alleviating greenhouse gas emissions and tackling climate-related challenges. Nevertheless, the rational design of efficient electrocatalysts is still restricted by insufficient activity, suboptimal selectivity, and a limited understanding of the underlying mechanisms. In this study, a hierarchically structured Cu-CoPc/CNT catalyst was fabricated by electrochemical deposition and drop-casting techniques. Comprehensive characterization (BET/SEM/XRD/EDS/XPS) confirmed its electronic configuration and surface properties. Electrochemical evaluations (CV/LSV/EIS/GC/1H NMR) demonstrated an ethanol Faradaic efficiency of 42.3% at a partial current density of 10.65 mA·cm–2, with exceptional ethanol selectivity of 98.6% among C2 products at −1.15 V vs RHE. In conjunction with density functional theory (DFT) calculations, mechanistic investigations have demonstrated that an adequate supply of those intermediates such *COOH and the facilitation of the C–C coupling are the primary factors contributing to the performance improvement of the CO2RR toward ethanol through the synergistic effect between CoPc/CNT and Cu. This research proposes a novel strategy for designing efficient and stable CO2-to-ethanol catalysts, thereby deepening the fundamental understanding of the ethanol formation mechanisms.
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高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
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2026
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IF 4.6
Mingzhu Lv,Wenbin Wei,Zhen Du,Ning Liu,Yina Qiao,Jing Lu,Pengxiao Liu
Prussian blue analogs (PBAs) have attracted significant attention in the field of capacitive deionization (CDI) due to their unique open-framework structure and excellent ion storage capacity. However, their limited capacity and poor cycle stability have restricted their practical applications. In this study, a series of ternary nickel‑cobalt‑copper Prussian blue analogs (NiCoCu-PBA) was synthesized via a co-precipitation method by introducing Ni, Co, and Cu metal ions, which significantly enhanced the material's conductivity, reversible redox activity, and structural stability. The optimized NiCo 2 Cu 8 -PBA electrode exhibited an excellent specific capacitance of 185 F g −1 at a current density of 0.2 A g −1 . In the rocking-chair electrochemical desalination system, the electrode achieved a desalination capacity of 79.71 mg g −1 in a 600 mg L −1 NaCl solution, maintaining a rapid desalination rate of 2.8 mg g −1 min −1 and low energy consumption of 0.589 Wh g −1 . Additionally, the electrode demonstrated excellent long-term stability, retaining 92% of its initial capacity after 200 cycles. This study confirms that the synergistic effect of the ternary metals plays a key role in enhancing the performance of PBA electrodes and provides technical support for the development of efficient and durable desalination systems.
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