JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2026
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IF 9.6
Weiguang Miao,Kai Zhu,Xiangfen Yan,Fangfang Chang,Qing Zhang,Ge Li,Zhengyu Bai
Copper-based catalysts have emerged as promising candidates for the electrochemical nitrate reduction reaction (NO 3 RR) to produce ammonia (NH 3 ). Achieving selective NH 3 synthesis with high Faradaic efficiency and productivity remains a significant challenge. Herein, we investigate the manipulation of dynamic Cu 0 /Cu + /Cu 2+ multiphase heterointerfaces using an electrochemical reconstruction strategy on a carbon-coated CuO/Cu 2 O@C catalyst during NO 3 RR. An intriguing catalytic relationship is revealed by electrochemical analysis that the formation of the dynamic Cu 0 /Cu + /Cu 2+ interface as superior active sites enhances the selective conversion of NO 3 − to NH 3 . The maximum NH 3 Faradaic efficiency (95.5%) and productivity (13.5 mg·h −1 ·mg cat −1 ) are achieved on multiphase heterointerfaces under pH-neutral conditions. As revealed by in situ structural analysis and density functional theory (DFT) calculations, multiphase heterointerfaces facilitate water activation, boost hydrogen supply, and lower the energy barrier for the rate-determining step of *NO-to-*N, thereby promoting the selectivity and Faradaic efficiency of NH 3 . This discovery paves the way for novel design of Copper-based catalysts, featuring improved activity and selectivity to promote NO 3 RR.
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APPLIED SURFACE SCIENCE
·
2026
·
IF 6.6
Guowei Xia,Jun Xie,Qiqiang Chen,Qikai Wang,Chengming Hu,Zhaohua Zhang,Qing Xie
Aramid fiber, as a new generation of synthetic fiber material, has excellent insulation and mechanical properties and is widely used in high-voltage power transmission and transformation equipment. However, the problems of smooth surface and low chemical reactivity seriously restrict the combination with polymers and reduce the withstand voltage characteristics of insulation devices. Hence, this paper proposes to use aramid nanofibers (ANFs) obtained through nanofibrillation treatment to regulate the surface roughness of aramid fibers. Meanwhile, polar functional groups were introduced during the deprotonation process, successfully constructing polar-nanofibrillation structures on the aramid fiber surface, further regulating the polarity of fiber surfaces. Through insulation performance tests and molecular dynamics simulations, the influence of polar functional group types on the insulation performance of aramid fiber-epoxy resin composites was revealed. The results show that the flashover voltage of the modified AFEP has increased by 58.01% and the breakdown field strength has increased by 56.52%. Analysis suggests that different polarity treatments have different mechanisms for enhancing insulation performance. Among them, the amino group is achieved by enhancing the interface bonding between aramid fibers and epoxy resin, while the fluorine-containing groups improve the material’s ability to control charge distribution.
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APPLIED SURFACE SCIENCE
·
2026
·
IF 6.6
Jialong Shi,Haijie Chen,Sijia Chen,Xiaolong Liu,Dapeng Feng,Zhiwen Zheng,Dan Qiao
The development of advanced lubrication technologies is essential for enhancing energy efficiency, reducing environmental impact, and improving mechanical durability. In this study, a high-performance lubrication system tailored for diamond-like carbon (DLC) coatings is designed, employing graphene oxide-functionalized cerium-based metal–organic framework (GO@Ce-MOF) composites as nano-additive in an aqueous polyethylene glycol (PEG) solution. The GO@Ce-MOF hybrids were synthesized via electrostatic self-assembly, demonstrating outstanding tribological characteristics with an exceptionally low coefficient of friction (COF ≈ 0.004) and minimal wear on DLC substrates. Post-friction analysis confirmed that the structural integrity of the DLC coating remained unimpaired, with wear predominantly localized on the opposing steel balls. A bilayer tribofilm, approximately 45.5 nm thick and composed of metal oxides and amorphous carbon, formed on the steel surface, facilitating a transition to carbon/carbon friction interfaces. The rod-like architecture of the cerium-based metal–organic framework (Ce-MOF), encapsulated by layered graphene oxide (GO), synergistically contributed to reduced rolling friction and provided carbonaceous precursors for in situ tribofilm formation. This solid–liquid lubrication synergy enabled superlubricity and near-zero wear. The findings demonstrate a novel strategy for promoting in situ growth of carbonaceous tribofilms on dual friction interfaces, offering transformative potential for sustainable lubrication of advanced coating materials.
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SENSORS AND ACTUATORS B-CHEMICAL
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2026
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IF 8.3
Xia He,Yuankun Zheng,Yuting Zhang,Jia He,Mengting Li,Jinqi Li,Zhenping Liu,Huikai Shao
Nuclear matrix protein 22 (NMP22) is a well-recognized biomarker for bladder cancer; however, conventional detection methods often suffer from insufficient sensitivity, high-cost and time-consuming. In this work, a novel epitope molecularly imprinted polymer (EMIP)-based electrochemical biosensor was constructed for highly selective and sensitive determination of NMP22. The EMIP biosensor was fabricated by electro-polymerization with C-terminal dodecapeptide (GATPRAKGKAKH, named as epitope) of NMP22 as template and o -phenylenediamine ( o -PD) as functional monomer on the gold electrode (AuE) which was previously self-assembled with thiolated graphene (G-SH) and gold nanoparticles (AuNPs). The use of G-SH and AuNPs can supply synergistic effects for enhancing detection sensitivity and epitope imprinting of C-terminal dodecapeptide of NMP22 can provide high selectivity for NMP22 detection. To obtain the superior sensitivity, several experimental parameters affecting the performance of the EMIP electrochemical sensor were investigated, including the molar ratio of template to functional monomer, electropolymerization cycle, elution time and incubation time. Under the optimal experiment, this EMIP electrochemical biosensor exhibited a good linear relationship for NMP22 in the concentration range from 0.1 pg mL −1 to 1.0 μg mL −1 , with a limit of detection (LOD) of 0.077 pg mL −1 . Finally, the EMIP electrochemical biosensor was successfully used for the determination of NMP22 in human urine with the recovery rates ranging from 96.92 % to 100.88 %. Compared with conventional ELISA, the proposed EMIP biosensor displayed shorter detection time, improved reproducibility and comparable analytical reliability. These findings highlight that the developed EMIP biosensor holds strong potentials for early bladder cancer diagnosis and broader clinical applications.
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Polymers
·
2026
·Vol. 18
·期 3
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IF 4.9
Jiahao Zhao,Qinglin Jia,Xu Wang,Jinhui Zhang,Yizhen Xu,Hai Zhao,Benbo Zhao,Shixiong Sun,Minghao Zhang,Chao Wang
Two-dimensional (2D) materials open up exciting possibilities for the study of ion transport behavior for green energy. Here, a simple and effective strategy to fabricate high-conductivity nanofluidic channels based on exfoliated montmorillonite (MTM) nanosheets is proposed. The resource-rich and low-cost layered MTM was first exfoliated into monolayer nanosheets using Exolit OP 550. Subsequently, the MTM nanosheets with Exolit OP 550 were assembled into 2D nanofluidic devices by the layer-by-layer self-assembly method. The results show that Exolit OP 550 exfoliates different types of layered MTM into monolayer nanosheets with uniform contrast and integrity. The reconstructed Na-MTM nanofluidic device has the highest ionic conductance. The ionic conductivity of the Na-MTM 2D nanofluidic device was effectively improved after Li+modification with a higher charge density. After further optimizing the content of Exolit OP 550, the ion conductivity of the MTM nanofluidic device reached 4.66 × 10−4S cm−1, which is 55.3% higher than the highest known value among the same nanofluidic devices. Interestingly, this nanofluidic device exhibited a very high sensitivity in detecting water evaporation, which can reach 10−12S s−1in resolution. This economically viable strategy may advance the study of low-dimensional ion transport properties in new energy coatings and the design of evaporation detectors.
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Materials
·
2026
·Vol. 19
·期 3
·618
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IF 3.7
Hui Guo,Haoting Huang,Shijian Shi,Qinghua Sun,Jinping Sun,Kang Liu,Qiang Zhu,Peng Zhang
Direct ink writing (DIW) has emerged as a promising method for fabricating flexible electronics. Copper nanowires are a key material for the conductive inks required for this technology. However, copper nanowires suffer from significant challenges, including low aspect ratios, poor oxidation resistance, and difficulty in printing. In this study, a liquid-phase reduction method was used to synthesize copper nanowires with a high aspect ratio (up to 2884) and excellent oxidation resistance. The conductive ink was prepared using ethylene glycol, isopropanolamine (MIPA), and ethanol as solvents. Rheological dynamics simulations were used to investigate the influence of printing parameters on ink printing accuracy, ultimately achieving precise control of the printing process. High-precision copper nanowire flexible circuits with a low resistivity of 2.11 μΩ·cm were fabricated under thermal sintering conditions using the DIW method. These circuits exhibited excellent adhesion, flexural behavior, and water resistance, demonstrating significant practical significance for the low-cost fabrication of high-precision flexible electronic devices.
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ACS Applied Energy Materials
·
2026
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IF 5.5
Jie Li,Yongxiang Wang,Jingting Sun,Yong Dai,XiaoHua Cao,YongMing Luo,Xiaoping Xing,Kaige Chen
Photothermal CO2 hydrogenation harnesses light and heat synergistically to convert CO2 into value-added chemicals, representing an emerging pathway toward carbon-neutral energy systems. Layered MXene, with its large specific surface area and moderate conductivity, is ideal for enhancing photothermal performance. In this work, Ni nanoparticles (NPs) were loaded onto the MXene-derived TiO2 (MTiO2) surface via a hydrothermal method to synthesize Ni@MTiO2 composites with high photothermal CO2 methanation performance. The solar-light-driven methane (CH4) production of the 30Ni@MTiO2 catalyst was 66.03 mmol gcat–1 h–1, with a selectivity approaching 100%. The superior catalytic performance can be primarily attributed to the high dispersion of Ni NPs, the substantial concentration of oxygen vacancies, enhanced charge-carrier separation efficiency, and the robust adsorption capacity. This study provides a feasible strategy for synthesizing efficient photothermal CO2 methanation catalysts derived from MXene.
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ACS Omega
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2026
·
IF 4.3
Hua Li,Fang Su,Shuiqiang Chen,Yong Gao,Ke-Wen Tang
Metal–organic frameworks (MOFs) have received widespread attention in various energy related applications due to their unique structural characteristics. Nevertheless, the inherent low electronic conductivity of MOFs is a major limitation for their competitive activity. Herein, we synthesized a self-standing NiFe MOF@Ni3S2 core–shell hierarchical heterostructure through using Ni3S2 grown on nickel foam (NF) as a semisacrificial template, in which the highly conductive Ni3S2 nanosheets core endows the hybrid with rapid charge transfer capability, and the bimetallic NiFe MOF nanosheets provide abundant exposed active sites. Benefiting from the structural and compositional advantages, the enhanced electrocatalytic activity of the as-obtained NiFe MOF@Ni3S2/NF has been achieved toward alkaline oxygen evolution reaction (OER). As a result, the NiFe MOF@Ni3S2/NF only requires overpotentials of 177 and 219 mV to yield OER current densities of 10 and 100 mA cm–2, respectively, and exhibits a very small Tafel slope of 24.1 mV dec–1 and high durability, making it among the most efficient earth-abundant OER catalysts. This study will inspire further construction of MOF-based nanocomposites for applications in electrochemical renewable energy systems.
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ACS Applied Nano Materials
·
2026
·
IF 5.5
Xiaoyang Dong,Jinxing Wang,Jingdong Yang,Wen Zeng,Guangsheng Huang,Jingfeng Wang
Magnesium (Mg)–air batteries are regarded as promising large-scale energy-storage devices because of their high theoretical energy density, low material cost, intrinsic safety, and environmental benignity. Nevertheless, their practical deployment is severely hindered by sluggish oxygen reduction reaction (ORR) kinetics at the cathode. Herein, nanoscale transition-metal–nitrogen-doped carbon (M-N-C, M = Fe, Co, Ni) electrocatalysts─denoted FNC, CNC, and NNC─are prepared by argon-pyrolysis of Prussian blue analogues (PBAs). The cationic and anionic ligands are systematically varied to tailor the crystal phase, pore architecture, and nanoscale M-Nx coordination environment. Comprehensive characterization shows that CNC possesses the highest density of well-dispersed Co-Nx active nanosites embedded in a graphitic matrix. This ensures rapid electron transfer and abundant accessible active centers. Electrochemical tests in alkaline (0.1 M KOH) and neutral (3.5 wt % NaCl) electrolytes demonstrate that CNC delivers the most robust ORR activity and stability (CNC > FNC > NNC) via a near-ideal 4 e pathway. Meanwhile, CNC exhibits better stability than commercial Pt/C in both alkaline and neutral electrolytes. As the cathode nanocatalyst in Mg-air batteries, CNC is found to yield a peak power density of 19.14 mW/cm2─only 0.66 mW/cm2 below that of commercial Pt/C. The decisive role of nanoscale M-Nx coordination environments in boosting ORR kinetics is thus elucidated. This work provides a nanomaterials-driven strategy for developing high-performance, cost-effective electrocatalysts for Mg-air batteries.
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ACS Nano
·
2026
·
IF 16
Xianting Zhao,Shengyang Huang,Zihuan Tang,Di Liu,Chenduan Xie,Xiaoqin Yi,Xinya Qiu,Hanci Chen,Mengqi Zhu,Xianhui Zhang,Wenwu Li,Kaifu Huo,Zaiping Guo,Ho Seok Park
Uncontrolled proton activity in aqueous electrolytes triggers detrimental side reactions that compromise the stability of zinc (Zn) metal anodes. To address this challenge, we propose a full-process proton regulation strategy enabled by the unique β-1,4-glycosidic framework of chitosan oligosaccharide (COS). The rigid COS backbone effectively constrains proton generation and transport in the electrolyte, while its preferential interfacial adsorption constructs an ultrathin molecular barrier that inhibits proton consumption at the Zn surface. This dual-function molecular architecture synergistically realizes “generation-transport-consumption” proton regulation, thereby delivering exceptional electrochemical performance: long-term cycling stability over 8,000 h in Zn||Zn symmetric cells, an average Coulombic efficiency of 99.84% over 2,300 cycles in Zn||Cu cells, and superior cycling stability for more than 2,000 cycles at 2 A g–1 in Zn||MnO2 full cells. This work reveals glycosidic frameworks as a universal and transferable design principle for aqueous batteries, shifting electrolyte design from functional group-centric optimization to framework-enabled regulation toward sustainable, high-performance energy storage.
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ACS Applied Nano Materials
·
2026
·
IF 5.5
Yun Ye,Minqing Chen,Qianlin Wang,Yuhao Huang,Xvjing Xv,Ziwen Chen,Chenlong Zhou,Hui Long,Yu Zhao,Lili Tao
Ultrafast lasers have extensive and important applications in precision processing, biomedicine, ultrafast spectroscopy research, and communication fields. Saturable absorber materials are key components in obtaining ultrafast lasers. However, at high mode-locked pump power, the saturable absorber is easily damaged, greatly reducing its operational stability and service life. Here, we report the synthesis of uniform tellurium quantum dots with an average size of ∼3 nm and stable traditional soliton mode-locked fiber laser achieved at an extremely low pump power of 30 mW, with an output pulse width of 700 fs based on the tellurium quantum dot saturable absorber. As the pump power further increased, the output pulse width was compressed to 578 fs at 150 mW. Even more interestingly, by adjusting the pump power, the phenomenon of bound soliton mode-locked was also discovered. The experimental results demonstrate that the synthesized uniform tellurium quantum dots exhibit an ultralow mode-locked threshold, enabling ultrafast laser operation at low pump powers. This material represents a promising saturable absorber with unique application potential.
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ACS Nano
·
2026
·
IF 16
Tianyuan Xiao,Lu Wu,Lingzhi Huang,Xuanjia Yu,Wenchao Jia,Xueru Sheng,Fengshan Zhang,Yanzhu Guo,Pedram Fatehi,Haiqiang Shi
The formation of low molecular weight lignin nanoparticles (LMW-LNPs) remains challenging due to their severe self-aggregation effect as well as thermal instability, hindering their scalability and functional applications. This study develops a novel γ-valerolactone (GVL)/deep eutectic solvent (DES) biphasic system incorporating polyol-based hydrogen bond donors (HBDs) to systematically modulate the hydrogen bond acidity of DES, enabling selective depolymerization of industrial lignin in acid lithium bromide hydrate (ALBTH) while effectively suppressing lignin condensation. The optimized system achieved a low lignin molecular weight of 1213 g/mol with minimal condensation, yielding monodisperse low-molecular-weight lignin nanoparticles (LMW-LNPs) with an average diameter of 92.3 nm. Mechanistic investigations using the veratrylglycerol-β-guaiacyl ether (VG) model compound revealed that lignin aryl ether bonds are cleaved via hydrogen transfer from the DES-HBD component, which disrupts the condensation pathway through competitive hydrogen bonding. The LMW-LNPs which maintain structural integrity while achieving depolymerization during the preparation of lignin-based materials exhibit efficient photothermal conversion and dye adsorption properties. They offer a transformative approach for the sustainable production of functional lignin nanomaterials with customized properties, addressing key challenges in the value-added utilization of lignin and promoting advanced applications of lignin-based materials.
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