ENERGY
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2026
·
IF 10.1
Xiaonan Lv,Song Liu,Keyan Zeng,Jie Chen,Jie Song,Rengui Xiao,Xiang Ke
Organic polymer materials are promising for energy storage owing to their high safety and structural tunability. However, their practical application is hindered by poor cycling stability, low electrical conductivity, and high solubility. This study utilized the silver nitrate (AgNO 3 ) displacement reaction to innovatively in situ construct a sandwich-structured organic electrode with nanomesh metal-based SEI film. It effectively addressed the limitations of the two interface layers of active material/electrolyte and active material/collector to achieve interfacial stabilization and fast ion transport. The three-dimensional mesh metal-based artificial SEI layer with attached nanoparticles not only effectively inhibits the electrode material from being attacked by the electrolyte and reduces the solubility of organic materials, but also the attached nanoparticles can enhance the conductivity of the material. In addition, the pure Ag metal layer between the active material and the Cu foil collector can effectively improve the electrical conductivity and accelerate the electron transfer, which plays a key role in keeping the internal resistance stability of the battery. The composite electrode material exhibits excellent rate performance and stable long cycling performance at a high rate (46.1 mAh g −1 after 2000 cycles at 20 C, 1 C = 223 mAh g −1 ). Furthermore, Density functional theory (DFT) calculations and theoretical analysis provided detailed explanations of the energy storage pathways and utilized the electronic structure to reveal the synergistic effect mechanism existing among the sandwich structures. Therefore, providing a new strategy for designing organic polymer materials to be used in high-performance energy storage devices in the future.
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高影响因子
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
·
2026
·
IF 1.8
Jiaxuan Gao,Shui Liu,Caixia Xu
A copper-based catalyst was prepared via the impregnation method using alumina as the support and subsequently modified by dielectric barrier discharge (DBD) plasma. The modified copper-based catalyst achieved acetylene conversion of 94% and acetaldehyde selectivity of 78% after 8 h of reaction and maintained high levels of conversion, selectivity, and stability over 15 h of continuous reaction. The experimental results demonstrate that the DBD plasma-modified catalyst exhibits a promotional effect on the acetylene hydration reaction compared to the high-temperature calcined catalyst. X-ray diffraction (XRD), X-ray photoelectron spectroscopy, thermogravimetric analysis (TG), transmission electron microscopy,and inductively coupled plasma-optical emission spectrometry analyses indicate that compared to the conventionally high-temperature calcined catalyst, DBD plasma modification of catalyst enhances anti-reduction capability of the active copper species, effectively suppresses copper loss and carbon deposits, due to the strong interaction between the Al 2 O 3 and Cu species, thereby significantly improving catalytic performance. Graphical Dielectric barrier discharge (DBD) plasma modification of Cu-G/Al 2 O 3 catalysts is developed for acetylene hydration. Compared with conventional high-temperature calcination, DBD plasma markedly strengthens metal–support interaction, which effectively suppresses Cu 2+ reduction, carbon deposition, and copper leaching. Consequently, the DBD-modified catalyst delivers superior performance, with 94% acetylene conversion and 78% acetaldehyde selectivity after 8 h, and significantly longer stability over 30 h, unequivocally outperforming the calcined catalyst.
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.6
Yong Wang,Guangshuo Wang,Xiaoxiong Li,Yue Han,Yuanzhe Li,Yanlei Zhang,Yalei Li,Yusen He,Zhixiao Zhang,Yichuan Huang
The redox kinetics of lithium polysulfides (LiPSs) result from the intrinsic insulating nature of sulfur and the weak interaction between hosts and LiPSs. Constructing heterostructures with built-in electric fields is a promising strategy to accelerate charge transfer; however, the limited active sites and suboptimal electronic configuration at the interface often restrict their catalytic efficiency. Herein, we propose an atomic-level modulation strategy by incorporating isolated Cu atoms into a Mott-Schottky Ni/NiO heterostructure to create a multifunctional electrocatalytic layer for Li S batteries. The introduction of atomic Cu not only induces abundant oxygen vacancies but also triggers a selective upward shift of the d-band center, which synergizes with the interfacial electric field to optimize the electron redistribution. This electronic restructuring significantly enhances the orbital hybridization between the host and LiPSs, thereby strengthening the chemical adsorption and effectively lowering the decomposition energy barrier of Li 2 S. Consequently, the Cu-Ni/NiO modified separator exhibits superior catalytic activity, achieving a high initial capacity of 1353 mAh g −1 and an ultralow decay rate of 0.056% per cycle over 500 cycles at 1C. Even under harsh conditions with high sulfur loading (8.4 mg cm −2 ) and lean electrolyte, the pouch cell delivers a high areal capacity of 4.16 mAh cm −2 and excellent flexibility, demonstrating its great potential for practical applications. Atomic Cu sites are incorporated into the Mott-Schottky Ni/NiO heterostructure to modulate interfacial electron redistribution. Atomic Cu doping simultaneously improves electrical conductivity, optimizes the electronic structure, and enhances catalytic activity. The resulting Cu-Ni/NiO heterocatalyst delivers high polysulfide adsorption capacity and accelerated conversion kinetics, effectively suppressing the shuttle effect and boosting the overall electrochemical performance of Li S batteries. Download: Download high-res image (194KB) Download: Download full-size image
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高影响因子
Science China-Materials
·
2026
·
IF 7.7
He Jiaman,Kang Liwen,Zeng Weigang,Shi Wanxin,Ling Qidan,Lin Zhenghuan
Organic-inorganic hybrid metal halides (OIMHs) based on Cu(I) ions show broad application prospects in the field of stimulus-responsive luminescent materials based on their rich structural diversity and highly adjustable electronic state. However, achieving sensitive and broad-temperature-range thermal responses for OIMHs remains a significant challenge, despite the growing interest in smart luminescence materials. In this study, 4-morpholinopiperidine (4-MP) and CuI are used to synthesize a zero-dimensional warm white-light emitting OIMH, namely MPC-W ((C 9 H 20 N 2 O) 4 (Cu 2 I 4 )(Cu 2 I 6 )(H 2 PO 2 ) 2 ), which features hybrid structures of [Cu 2 I 4 ] 2− and [Cu 2 I 6 ] 4− . Owing to the coexistence of three luminescent mechanisms-organic cluster luminescence (CL), self-trapped exciton (STE) emission of [Cu 2 I 6 ] 4− , and cluster-centered (CC) state luminescence of [Cu 2 I 4 ] 2− , MPC-W exhibits temperature and excitation wavelength-dependent dynamic luminescence. When the temperature is increased from 77 to 297 K, the luminescence color of MPC-W can be continuously tuned from blue to cyan, green, yellow-green, and white. In the range of 217–463 K, MPC-W displays an abnormal luminescence enhancement phenomenon with increasing temperature. Additionally, upon chemical stimulus, MPC-W can reversibly transform into a blue-light emitting crystal named MPC-B ((C 9 H 20 N 2 O)Cu 2 I 4 ), and a yellow-light emitting crystal named MPC-Y ((C 9 H 18 N 2 O) 7 Cu 8 I 8 ). These unique dynamic luminescent properties endow MPC-W with great application potential in temperature sensing, optical anti-counterfeiting, and password locks. The work provides a new insight for the development of novel wide temperature-responsive multifunctional intelligent luminescent materials.
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高影响因子
FOOD CHEMISTRY
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2026
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IF 10.4
Siyu Wen,Jiale Cheng,Zuting Yan,Yiru Wang,Yongwei Shi,Yuhan Sun
The lack of rapid, user-friendly methods for alternariol (AOH), a prevalent emerging mycotoxin, presents a considerable analytical challenge. This work introduces an integrated sensing strategy advancing from classical homogeneous liquid-phase detection to a portable AI-enhanced paper-based biosensor. The system employed a Cu/Mn-CeO 2 nanozyme as signal generator and amplifier, and exploited the inhibitory effect of AOH on acetylcholinesterase (AChE) to suppress the thiocholine (TCh)-mediated reduction of oxidized 3,3′,5,5′-tetramethylbenzidine (oxTMB), enabling quantitative colorimetric readout. It achieved ultra-sensitive detection in the liquid phase with a limit of detection (LOD) of 0.016 pg/mL. By incorporating an aptamer affinity column for sample cleanup, the assay was transferred to a foldable paper platform. An AI-driven Monte Carlo color analysis method addressed issues of color heterogeneity and subjective interpretation, yielding an LOD of 0.12 μg/kg in wheat. This study provides a point-of-need solution for AOH screening and establishes a generalizable framework for detecting contaminants in complex samples.
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PubMed
高影响因子
CHEMISTRY OF MATERIALS
·
2026
·
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
·
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
·
2026
·
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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高影响因子
CHEMISTRY LETTERS
·
2016
·Vol. 45
·期 9
·1051-1053
·
IF 1.55
Wang Luanjiao,Rao Pinhua,Yao Wei,Zhang Wenqi
CuSn-codoped CdS (CdS:CuSn) quantum dots (QDs) with different Cu(I) and Sn(IV) doping levels have been successfully synthesized by a simple one-pot procedure. It was found that the doping ratio of Cu(I) and Sn(IV) in CdS QDs significantly affected the photoluminescence (PL) quantum yields (QYs), Stokes shifts, and emission window of as-prepared QDs. Compared to single Cu doping, CuSn codoping further significantly improved the PL QYs of as-prepared QDs (up to 24.6%). The CdS:CuSn QDs may be used as potential emitters in the PL industry.
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高影响因子
ACS Applied Materials & Interfaces
·
2026
·
IF 7.8
Zhenfeng Li,Yifan Zhao,Zixu Wang,Jinyang Li,Chenglong Zhou,Peng He,Shuye Zhang
Oxidation susceptibility and insufficient service reliability remain major limitations for Cu-based conductive inks in flexible electronics. Here, size-tunable Cu@Ag core-shell nanoparticles were processed by millisecond intense pulsed light (IPL) sintering to establish a rapid route toward conductive and durable flexible electrodes. Comparative finite-element thermal analysis and electrical measurements establish a practical IPL processing window, while electron microscopy and complementary diffraction analysis support energy-dependent interparticle connection and localized Cu-Ag interfacial reconstruction without assuming homogeneous alloying throughout the film. The sheet resistance reaches a minimum of 0.06 Ω/sq at 5.0 J/cm2, whereas 4.5 J/cm2 is selected as the practical baseline because it provides a more favorable balance among conductivity, film integrity, environmental stability, flexibility, adhesion, and limited cumulative substrate heating. Films processed within this window maintain low resistance during damp-heat and cryogenic exposure and exhibit stable electrical behavior during repeated bending. At the device level, the 4.5 J/cm2 electrode enables a contact-separation triboelectric nanogenerators (TENG) with an open-circuit voltage of 275.45 V and a peak power density of 0.71 W/m2. In otherwise identical alternating-current electroluminescent (ACEL) devices, increasing the electrode-processing energy from 1.5 to 4.5 J/cm2 markedly increases luminance, directly linking the IPL-defined electrode state to device performance. The integrated patterned platform further enables tactile-position visual feedback. These results establish an evidence-based processing-thermal response-structure-reliability-device relationship for IPL-sintered Cu@Ag NPs flexible electrodes.
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高影响因子
CERAMICS INTERNATIONAL
·
2026
·
IF 6
L.Y. Cao,S. Qiu,P. Viktoriia,Z. Chen,B. Hong,J.C. Xu,H.W. Chen,M.M. Wei,X.Q. Wang
To develop a high-performance humidity sensor, MOF-303, possessing both micro- and mesoporous structures, was selected as the host material for the sensor. SnO 2 nanoparticles were introduced via wet impregnation, and Cu(II) ions were anchored onto uncoordinated nitrogen sites of MOF-303, forming a ternary Cu(II)/SnO 2 /MOF-303 nanocomposites. The optimal sample denoted as 1-2CuSnM (with a molar ratio of Cu(II) to SnO 2 /MOF-303 of 1:2) achieved a response value of 116.98 over 11-98% RH, with response/recovery times of 16.2/6.3 s, low hysteresis (2.48% RH), and excellent 30-day stability (SD < 0.01) at room temperature. The synergy between Cu(II) and SnO 2 introduces abundant oxygen vacancies for water adsorption, while uncoordinated N sites enable proton hopping (Grotthuss mechanism) and Cu(II) dissociation enhances ionic conductivity, collectively reducing impedance. This ternary strategy is novel in combining protonic and ionic conduction pathways within a MOF framework, enabling a humidity sensor with wide range, fast response, and low hysteresis, key advancements over conventional materials.
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高影响因子
Catalysts
·
2026
·Vol. 16
·期 9
·806
·
IF 4.5
Yifei Wang,Ruoxin Li,Bin Jia,Jun Liu,Guojie Zhang
Low-temperature sintering flue gas contains both nitrogen oxides (NOx) and carbon monoxide (CO), requiring bifunctional catalysts for concurrent pollutant abatement. Herein, CuSmTi composite oxides with an identical nominal composition were synthesized via impregnation, mechanical grinding, and sol–gel methods to examine the effects of preparation route on their structure, surface properties, and catalytic performance in coupled NH3-SCR and CO oxidation. CuSmTi-SG exhibited the best performance, achieving >40% NOxconversion at 125 °C, complete NOxand CO conversion at 200 °C, and nearly 100% N2selectivity over 100–300 °C, with stable performance over 24 h. It possessed a higher surface area (131.4 m2g−1), pore volume (0.230 cm3g−1), and smaller TiO2crystallite size (8.5 nm) than the other catalysts. Spectroscopic analyses showed that sol–gel synthesis altered the surface electronic states of Cu and Sm species, resulting in a higher Cu+fraction and greater amounts of medium-to-strong Lewis acid sites and labile surface oxygen species. In situ DRIFTS indicated that CO oxidation proceeded predominantly via a Mars–van Krevelen mechanism over Cu+sites, whereas NH3-SCR mainly followed an Eley–Rideal pathway. CO and NH3preferentially interacted with different surface sites, resulting in limited mutual inhibition. These results demonstrate that the preparation route can modify the structure and surface chemistry of CuSmTi catalysts without changing their nominal composition, thereby affecting their performance in low-temperature NOxand CO abatement.
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高影响因子
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