ACS Applied Materials & Interfaces
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2026
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IF 7.8
Wenxin Lai,Pengfei Xu,Molly Meng-Jung Li,Biao Xu
Layered n-type SnSe2 is a promising eco-friendly thermoelectric (TE) material, yet its practical application is constrained by low carrier concentration and the inherent coupling of electronic-thermal transport. Herein, a CuCl annealing strategy is developed to leverage Cu interstitial intercalation for the precise modulation of electronic band structures and phonon dispersions in SnSe2. By synergizing with the Cu-induced formation of SnSe heterojunctions, this approach effectively decouples electron and phonon transport. Consequently, the SnSe2-2 mol% CuCl sample achieves a maximum power factor (PF) of 0.74 mW m-1 K-2 and surpasses pristine SnSe2 by 8-fold. Furthermore, the κL is reduced to 0.53 W m-1 K-1 at 723 K, marking a 31% decrease relative to pristine SnSe2. This translates to a dimensionless figure of merit (zT) of 0.88 at 723 K parallel to the spark plasma sintering direction. Notably, we fabricate the first SnSe2-based single-leg thermoelectric generator (TEG), which delivers an energy conversion efficiency of about 2% under a ΔT of 340.8 K. By effectively decoupling electronic and thermal transport, this work unlocks the full potential of eco-friendly SnSe2, providing a sustainable and high-performance paradigm for green energy harvesting without relying on toxic elements.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Zixuan Xu,Yiming Wang,Rufeng Zhang,Anmin Liu,Yumin Zhang,Gaohong He,Yixiang Huang,Qiulin Li,Yuheng Wang,Min Li,Wenjun Zhang
In situ coordination assembly of Cu 2 O/Cu-TCPP(Fe) bimetallic nanozyme. • Intermetallic Cu + /Fe 3+ electron transfer accelerates the peroxidase-like activity. • ML-integrated dual-channel array distinguishes six antioxidants with 100% accuracy. • Precise quantification of antioxidant mixtures in biofluids via RF. Accurate identification and quantitative analysis of antioxidants in complex biological fluids are the keys to the early detection of severe diseases. The single-channel sensors suffer from weak specificity and critical multi-component signal crosstalk, which hardly meet the accurate analytical requirements. Herein, an intelligent colorimetric sensing platform of bimetallic mixed-valence nanozyme was integrated with machine learning (ML) to improve the analytical precision. Fe/Cu nanosheets of mixed valence were successfully acquired through Cu 2 O-coordinated anchoring in situ into iron porphyrin (TCPP(Fe)). This mixed-valence strategy effectively promoted the synergistic catalysis and valence cycling among the metal active sites, thereby significantly enhancing the peroxidase (POD)-like activity of the Cu 2 O/Cu-TCPP(Fe) ( V max as high as 8.107 × 10 −7 M·s −1 and K m as low as 0.913 mM). DFT calculations indicated that the introduction of Cu 2 O promoted strong Cu 3d and Fe 3d orbital hybridization and an upshift of the Cu d-band center, accelerating interfacial electron transfer and Fe/Cu valence cycling, thereby revealing the intrinsic mechanism underlying the enhanced catalytic activity. Taking the differential catalytic responses of the nanozyme with two different substrates, a highly sensitive dual-channel sensor array was designed with machine learning. Combined with algorithms of artificial neural network (ANN), random forest (RF), and support vector machine (SVM), etc., 100% accurate qualitative discrimination of six antioxidants was remarkably completed. Relying on the outstanding capability of the Random Forest (RF) algorithm to remarkable robustness in handling high-dimensional sample datasets, the sensor array successfully established a precise quantitative model for multiple antioxidants in complex samples, remarkably and intelligently sensing the diverse components in urine and serum. This work paved a new way for highly active bimetallic nanozymes to construct a trustworthy sensing platform as a diagnostic tool for the intelligent profiling of multi-component biomarkers in complex matrices. Download: Download high-res image (150KB) Download: Download full-size image
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高影响因子
JOURNAL OF MOLECULAR STRUCTURE
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2026
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IF 4.9
Chao Wu,Yuqi Sun,Xueling Liu,Ruining Shi,Qiuxuan Li,Chenghao Yin,Rui Zhang,Chao Xu,Guoshuai Zhang,Haitao Han
A polyhedral coordination cage (PCC) was constructed as a confined nanoreactor. • Ultrafine Cu nanoparticles of approximately 1 nm were uniformly stabilized in PCC. • Cu NPs@PCC achieved 99.09% metronidazole removal within 15 min. • PMS activation involved synergistic radical and nonradical oxidation pathways. • The catalyst showed good stability, recyclability, and broad pollutant applicability. Developing PMS-based heterogeneous catalysts with high activity and durability is limited by the aggregation and deactivation of active metal species. Herein, a cobalt-based thiacalix[4]arene polyhedral coordination cage (PCC, compound 1) was constructed as a confined nanoreactor for stabilizing ultrasmall Cu nanoparticles, yielding a Cu NPs@1 catalyst for PMS activation. The abundant exposed nitrogen-donor sites within the PCC enabled uniform confinement of ∼1 nm Cu nanoparticles and effectively suppressed their aggregation. Benefiting from the confined catalytic environment and highly dispersed active sites, Cu NPs@1 exhibited excellent activity toward metronidazole (MTZ) degradation, achieving 99.09% removal within 15 min ( k obs = 0.27 min -1 ). The catalyst maintained high performance under various pollutant concentrations, coexisting ions, and repeated cycles, and also efficiently degraded rhodamine B and tetracycline. Mechanistic studies revealed that PMS activation involved both radical and nonradical pathways, with 1 O 2 , ·OH, ·SO 4 - , and ·O 2 - contributing to pollutant oxidation. LC-MS analysis revealed that MTZ underwent hydroxylation, bond cleavage, and ring-opening reactions, leading to progressive degradation and mineralization. This work provides a coordination cage confinement strategy for constructing highly dispersed metal nanoparticle catalysts toward advanced oxidation processes. A cobalt-based thiacalix[4]arene polyhedral coordination cage (PCC) was employed as a confined nanoreactor to stabilize ultrasmall Cu nanoparticles for efficient PMS activation. The resulting Cu NPs@PCC catalyst enabled rapid metronidazole degradation through synergistic radical and nonradical pathways involving 1 O 2 , ·OH, ·SO 4 ⁻, and ·O 2 ⁻. The coordination-cage confinement effectively suppressed nanoparticle aggregation, enhanced catalytic stability, and provided a versatile strategy for advanced oxidation catalysis. Download: Download high-res image (355KB) Download: Download full-size image
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高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2026
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IF 5.4
Mengjia Li,Jiakun Wang,Zihao Qiu,Liang Li,Jianzhong Xu,Jinman Mao,Huimin Wang,Biao Wang,Feng Huang
Plasma activation improves the plasma-RWGS performance of La 2 CuO 4 . • Plasma activation reconstructs La 2 CuO 4 into a Cu + -enriched surface. • La-mediated electronic interactions and OVs stabilize surface Cu + species. • Cu + -enriched surface promotes coupled CO 2 and H 2 activation. While plasma catalysis enables CO 2 hydrogenation under mild conditions, catalyst activation still commonly relies on conventional high-temperature thermal pretreatments, which interrupt continuous operation and limit the practical integration of plasma catalysis with intermittent renewable energy systems. In this study, plasma activation and thermal activation were compared for the plasma-catalytic reverse water-gas shift (RWGS) reaction using La 2 CuO 4 as a precursor. Plasma-activated La 2 CuO 4 exhibited significantly enhanced CO 2 conversion compared with its thermally activated counterpart. Comprehensive structural and spectroscopic analyses, including Cu LMM Auger spectroscopy, Cu K-edge XANES, and XPS, revealed that mild plasma irradiation induced surface reconstruction, forming a Cu + -enriched and oxygen-defective surface while largely preserving the La 2 CuO 4 framework. La-involved electronic interactions and oxygen-vacancy-related reconstruction of the local Cu−O coordination environment jointly contributed to the formation and stabilization of Cu + species. CO 2 -TPD and WO 3 -assisted H 2 spillover experiments further suggested that the plasma-induced Cu + -enriched surface promoted more balanced CO 2 adsorption/activation and H 2 activation/migration, thereby contributing to efficient plasma-RWGS performance. This work offers a plasma-oriented route for in situ catalyst activation and surface-state regulation in plasma-catalytic CO 2 hydrogenation. Download: Download high-res image (183KB) Download: Download full-size image
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高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
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2026
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IF 8.3
Zheng Wang,Weiwei Meng,Ling Wang,Yuehua Li,Xu Li,Lei Dai
Cu-doped Bi 4 V 2 O 11 enabled medium-temperature mixed-potential NH 3 sensing. • Measurable NH 3 response appeared at 200°C, with optimum performance at 400°C. • Sensitivity increased with the conductivity of the solid electrolyte. The development of reduced operating temperature mixed-potential NH 3 sensors is hindered by insufficient ionic conductivity of conventional solid electrolytes at moderate temperatures. Here, a series of Cu-doped Bi 4 V 2-x Cu x O 11-δ (x = 0, 0.1, 0.2, 0.3) solid electrolytes were synthesized via a solid-state method to enhance oxygen ion transport. A mixed-potential NH 3 sensor was fabricated utilizing InVO 4 as the sensing electrode. Among the compositions, Bi 4 V 1.8 Cu 0.2 O 11-δ exhibited the highest conductivity, showing an over one order of magnitude increase at 400℃ compared with the undoped electrolyte. The resulting sensor showed a response to 10~300 ppm NH 3 over 200~550℃ and achieved a maximum sensitivity of −97.9 mV/decade at 400℃. Impedance/polarization analysis indicated that the sensing enhancement tracked the improved ionic transport of the Cu-doped electrolyte and followed the mixed-potential mechanism. This study highlights Bi 4 V 2-x Cu x O 11-δ -type electrolytes as promising electrolytes for moderate-temperature solid-electrolyte NH 3 sensing. Download: Download high-res image (148KB) Download: Download full-size image
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高影响因子
CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Zhiyun Xu,Yuwen Chen,Qingshan Zhu,Yafei Liu,Xianwang Zhang,Guoquan Song,Armin Rezayan,Qianli Ma,Zongwu Zhang,Jianshen Wang,Dan Wu,Chunbao Xu,Yongsheng Zhang
La 2 CuO 4 decorated inverse Cu catalysts enable selective FFA hydrogenolysis. • 10La/Cu delivers a 72.8% yield of 1,2-pentanediol from furfuryl alcohol. • Cu + –O v –La 3+ sites enable η 2 -(O, O)-FFA dual-site adsorption. • Cu 0 and Cu + –O v –La 3+ sites synergistically promote FFA adsorption and C 5 O cleavage. • 10La/Cu maintains stable performance for 200 h in a continuous flow fix-bed reactor. Selective conversion of furanic compounds to alkyl diols via furan ring-opening hydrogenolysis is of great importance for biomass refining, but remains challenging due to the inherent inertness of C−O−C bonds. In this work, an inverse-phase Cu catalyst decorated with La 2 CuO 4 domains was developed for the ring-opening hydrogenolysis of furfuryl alcohol (FFA) to 1,2-pentanediol (1,2-PeD). The optimized 10La/Cu catalyst afforded a 72.8% yield of 1,2-PeD at 140 °C under 6 MPa H 2 , which represents one of the best catalytic performance among previously reported Cu-based catalysts. Extensive characterization revealed that the intimate interaction between La 2 CuO 4 and metallic Cu generated abundant interfacial sites. Upon reduction, hydrogen spillover from metallic Cu to adjacent La 2 CuO 4 promoted the formation of an oxygen-vacant La 2 CuO 4 phase that are enriched with Cu + −O v −La 3+ sites. EXAFS analysis indicated that the Cu + −O v −La 3+ sites possess a Cu−La spatial distance of 0.32 nm, which well matches the atomic distance of two oxygen atoms in FFA molecules. In-situ FTIR and model reactions suggested that the formation of an η 2 -(O, O)-FFA dual-adsorption configuration on Cu + −O v −La 3+ sites may facilitate the selective activation of C−O−C bonds. Meanwhile, the sterically less hindered C 5 −O bond of the activated furan ring is selectively hydrogenolyzed by metallic Cu sites to form 1,2-PeD. This study provides mechanistic insight into selective furan ring hydrogenolysis and offers a feasible non-noble-metal-based catalyst with promising potential for practical application for the conversion of FFA to 1,2-PeD. Download: Download high-res image (265KB) Download: Download full-size image
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高影响因子
CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Yang Chen,Pengfei Yan,Huanhuan Yang,Huan He,Huiwen Tian,Xueqi Liu,Jingjing Zhang,Huimin Lv,Wenzhuo Wu,Qun Xu,Buxing Han
Supercritical CO 2 works as a soft oxidant to adjust the oxidation states and crystal facets of Cu-based materials. • In the supercritical state, CO 2 dissociates to generate active *O on the Cu surface with water assistance. • Spontaneously reconstructed hydrogen bond network stabilizes the dissociated *O species for Cu oxidation to Cu 2 O {111}. • Ethanol induces thermodynamic selectivity towards Cu 2 O {110} facets via an interfacial adsorption coupling mechanism. • Facet-engineered Cu 2 O-Cu achieves over 73% Faradaic efficiency for CO 2 RR-to-syngas and a tunable CO/H 2 ratio of 0.25−0.94. Catalytic versatility of copper-based catalysts has been demonstrated to arise from synergistic effect between Cu and Cu 2 O with controlled crystal facets, though precise synthesis of crystal facet-tailored Cu-based catalysts remains challenging. Herein, we develop a novel strategy to partially convert Cu nanoparticles into crystallographically defined Cu 2 O with supercritical CO 2 (scCO 2 ) as soft oxidant. Under supercritical fluid state, CO 2 dissociation on Cu surface generates reactive ⁎ O species with assistance of water. The spontaneously reconstructed hydrogen bond network with surrounding water molecules stabilizes these dissociated ⁎ O species for Cu oxidation to Cu 2 O with exposure of {111} crystal facet. While, ethanol introduction induces the formation of Cu 2 O {110} rather than Cu 2 O {111} facet from a thermodynamic perspective through interfacial adsorption coupling. The resulting facet-engineered Cu 2 O-Cu catalysts exhibit excellent electrochemical CO 2 reduction reaction (CO 2 RR) for syngas production with a high Faradaic efficiency of >73% and a tunable CO/H 2 ratio of 0.25–0.94. The enhanced performance is attributed to the interfacial synergy between Cu and Cu 2 O with distinct crystal facets, which facilitates significantly improved electron transfer to the key ⁎ COOH intermediate and thus lowers the energy barrier for CO formation. This interfacial effect is particularly pronounced in Cu/Cu 2 O {110}. This scalable platform enables solvent-directed synthesis of surface-customized metal oxides for functional nanomaterials using scCO 2 as mild oxidant. Supercritical CO 2 dissociates to active ⁎ O species for Cu oxidation to Cu 2 O {111} with assistance of water, while ethanol introduction induces Cu 2 O {110} formation. The face-engineered Cu 2 O-Cu demonstrated enhanced CO 2 RR-to-syngas performance. Download: Download high-res image (92KB) Download: Download full-size image
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高影响因子
BIOELECTROCHEMISTRY
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2026
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IF 4.9
Huang Wei,Xu Yiwei,Guo Yaojie,Chen Dingyao,Ren Wenjie,Suo Zhiguang,He Baoshan
In this work, a novel electrochemical aptasensor was constructed for the sensitive detection of DON by integrating the synergistic effect between the catalytic signal enhancement of Cu-Pt NPs and Exo I-assisted cyclic amplification, with an MWCNTs-AuNPs modified electrode serving as the sensing platform. Cu-Pt NPs with outstanding peroxidase-like catalytic activity were synthesized and used as signal probes to catalyze the substrate, generating significantly enhanced electrochemical signals. Meanwhile, Exo I enabled target recycling via specific strand cleavage. The two amplification mechanisms synergistically amplify the detection signal by enhancing catalytic efficiency and increasing cycle numbers. MWCNTs-AuNPs possess both a high specific surface area and superior conductivity, facilitating efficient electron transfer and biomolecule immobilization. In the presence of DON, the Exo I mediated recycling reaction is triggered, which leads to a reduction in the amount of the immobilized Cu-Pt NPs signal probes on the aptasensor surface. Under optimal conditions, the proposed aptasensor demonstrated a detection range from 0.1 to 500 ng/mL, and a low detection limit of 0.06 ng/mL, along with high selectivity, reproducibility, and stability for DON detection. Furthermore, the proposed aptasensor achieved satisfactory recovery rates in real sample analysis, indicating its promising potential for practical applications.
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PubMed
高影响因子
Molecular Catalysis
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2026
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IF 4.3
Dandan Zuo,Wuyu Wang,Miaojia Song,Peng Zheng,Sa Li,Qi Zhang,Xinghua Zhang,Longlong Ma
A ternary Cu-Nb/Al-MCM-41 catalyst achieves 99.60 % 2-methylfuran selectivity at 160 °C under atmospheric H2. • Al incorporation enhances metal dispersion and generates balanced Brønsted-Lewis acidity for controlled C O hydrogenolysis. • Nb promotion enables efficient H2 activation and strengthens Cu-Nb interfacial electronic coupling. • The catalyst exhibits excellent long-term stability and can operate continuously in a fixed bed for 500 h. The selective hydrodeoxygenation (HDO) of furfural (FAL) into 2-methylfuran (2-MF) is a crucial transformation for upgrading lignocellulosic biomass into liquid fuels. Herein, a series of Cu-Nb catalysts supported on mesoporous MCM-41 were developed. Over the optimized Cu-Nb/Al-MCM-41 catalyst, FAL was completely converted and the selectivity of 2-MF was 99.60 % at only 160 °C under ambient hydrogen pressure. Structural analyses revealed that Al incorporation reinforced metal-support interactions, enhanced Cu dispersion, and producing moderate Brønsted-Lewis acid sites, which synergistically facilitated hydrogen transfer and selective C O bond cleavage. In situ DRIFTS and XPS measurements confirmed a tandem hydrogenation-dehydration pathway proceeding via furfuryl-alcohol (FOL) intermediates, where Nb promoted H 2 activation and Al-derived acid centers accelerated dehydration at interfacial Cu-Nb-Al sites. The catalyst maintained high activity and selectivity during 500 h time-on-stream in a fixed-bed reactor, although slight deactivation was observed after prolonged operation. These findings establish a clear structure-function correlation between electronic modulation and acid-metal synergy, offering a sustainable strategy for efficiently producing furan-based biofuels under mild conditions. Download: Download high-res image (291KB) Download: Download full-size image
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高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2026
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IF 8.7
Yihong Yang,Ruiying Liao,Tengxin Huo,Yongling Xu,Huaiwen He
Cross-linked GA-PEI inhibited aggregation on the BC scaffold via PDA mediation. • The aerogel exhibits superior broad-spectrum capacities for Cu(II), Congo Red, and Methylene Blue. • Pollutant-dependent capture is driven by synergistic chelation, electrostatic, and π-π interactions. • The bio-based aerogel offers a sustainable route for complex water remediation. Direct functionalization of biopolymer aerogels often encounters steric agglomeration and pore blockage, which can significantly limit the accessibility of active sites for water purification. To address this challenge, a robust composite aerogel (BC-PDA-PEI) was engineered via a stepwise assembly strategy, utilizing polydopamine (PDA) as an interfacial adhesion layer to uniformly anchor polyethyleneimine (PEI) onto a bacterial cellulose skeleton. Structural characterization demonstrated that the PDA intermediate effectively suppresses the phase separation of PEI, thereby preventing bulk agglomeration and facilitating a thin, nanoscale coating. The resulting composite exhibited broad-spectrum removal performance, achieving maximum adsorption capacities ( q m ) of 93.52 mg/g for Cu(II) (as a model heavy metal), 615.02 mg/g for the anionic dye Congo Red, and 92.22 mg/g for the cationic dye Methylene Blue. Adsorption kinetics and isotherms were best described by the pseudo-second-order and Langmuir models, respectively, suggesting a monolayer-type adsorption mechanism. Post-adsorption FTIR/XPS analyses, together with the surface-charge trend, suggested pollutant-dependent interaction pathways: abundant amine groups contribute to the capture of Cu(II) via strong coordination, while the net positive surface character of BC-PDA-PEI favors the electrostatic removal of anionic dyes. This work presents a practical interfacial modification route to address agglomeration and pore occlusion issues in biopolymer aerogel functionalization, leading to the development of a sustainable adsorbent for the efficient removal of heavy metal ions and organic dyes from wastewater.
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PubMed
高影响因子
JOURNAL OF CATALYSIS
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2026
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IF 6
Huaibiao Wang,Tianxiu He,Churu Zhang,Yanyan Deng,Wenjun Quan,Ruoning Liu,Qingcai Zou,Chunye Chen,Yunfei He,Shaoyun Shan,Tianding Hu
Copper-based catalysts for hydroboration typically rely on air-sensitive Cu(I) species to achieve high activity, whereas Cu(II)-only systems remain largely ineffective due to their limited intrinsic reactivity. Herein, we present an intramolecular N/O competitive coordination strategy to construct a metal–organic framework (MOF) with multiple active Cu(II) sites (Cu-3,5-PyDC). This framework incorporates three distinct Cu(II) coordination environments: [Cu 2 -O 8 ], [Cu-N 2 O 2 ], and [Cu-N 3 ], which regulate the local electronic microenvironment of Cu(II) and significantly enhance its catalytic functionality. Consequently, Cu-3,5-PyDC is capable of completing the hydroboration of 25 terminal alkyne substrates within 5 min, achieving a turnover frequency up to 3046 h −1 . Combining deuterium experiments with density functional theory (DFT) calculations further reveals the synergistic interaction of multiple Cu(II) sites in the proton-hydrogen transfer pathway, which effectively lowers the reaction energy barrier. This work establishes the effectiveness of intramolecular N/O competitive coordination strategies for precisely constructing multiple active sites within MOFs, providing a rational design approach for the targeted development of multifunctional materials.
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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
Jialong Li,Shiye Cai,C. Srinivasakannan,Tong Han,Gang Xue,Li Wang,Yaping Wang,Xinhui Duan
A hollow octahedral NiCo 2 S 4 /carbon composite was rationally constructed through precursor regulation, sulfidation, and subsequent carbonization using a Cu-MOF-derived template. Benefiting from the well-preserved hollow architecture, uniformly distributed NiCo 2 S 4 active shell, and conductive carbon framework, the optimized 3-NiCo 2 S 4 @HC sample exhibits enhanced electrochemical performance as a supercapacitor electrode. In a three-electrode system, 3-NiCo 2 S 4 @HC delivers a high specific capacity of 858.5 C·g −1 at 1 A·g −1 and retains 84.2% of its initial capacity at 30 A·g −1 . In addition, it shows excellent cycling stability with 94.27% capacity retention after 10,000 cycles at 10 A·g −1 . Kinetic analysis reveals that the charge-storage process involves both diffusion-controlled Faradaic reactions and capacitive contributions, while the hierarchical hollow porous structure facilitates electrolyte infiltration and ion/electron transport. Furthermore, an assembled 3-NiCo 2 S 4 @HC//AC hybrid supercapacitor operates stably up to 1.6 V, delivering an energy density of 54.9 Wh·kg −1 at a power density of 799.9 W·kg −1 , and retaining 84% of its initial capacitance after 10,000 cycles. This work demonstrates that the synergistic integration of hollow structural engineering and carbonization is an effective strategy for developing high-performance Ni Co sulfide-based supercapacitor electrodes.
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高影响因子
危险品化学品经营许可证（带存储）