Small
·
2026
·
IF 11.8
Hongwei Zhang,Shan Wang,Ziqi Wen,Jingping Wang,Youlong Xu
Na 3.5 MnCr 0.5 Ti 0.5 (PO 4 ) 3 (NMCrTP) demonstrates significant development potential as a cathode material for sodium-ion batteries owing to its low cost and high discharge plateau. However, the severe potential hysteresis phenomenon caused by Mn·Na anti-site defects (Mn·Na-ASD) of Mn 2+ residing in Na vacancies is hindering its performance release. Here, a strategy is proposed to alleviate the anti-site defects in NMCrTP through doping Mo at the Ti sites using the sol–gel method. Rietveld refinement results confirm that the content of Mn·Na-ASD decreases from 6.30% in NMCrTP/C to 0.98% in NMCrTP/C-0.05Mo. Meanwhile, Hall effect measurements verify that the Mo donor induces the carrier-type transformation from p-type to n-type, enhancing electronic conductivity from 3.07 × 10 −3 to 3.61 × 10 −3 S cm −1 . Moreover, the ion diffusion coefficient measured by GITT increases from 3.96 × 10 −12 to 1.34 × 10 −11 cm 2 /s. In result, the mean discharge potential of the NMCrTP/C-0.05Mo cathode increases from 2.62 V (vs. Na + /Na) to 3.47 V, and the electrochemical polarization decreases from ΔV = 0.20 to 0.09 V. As expected, the NMCrTP/C-0.05Mo cathode delivers an excellent rate performance of 88.4 mAh g −1 at a high rate of 10 C. This work presents an effective strategy to alleviate the potential hysteresis of the NMCrTP cathode for high-rate SIBs.
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高影响因子
CERAMICS INTERNATIONAL
·
2026
·
IF 6
Hengji He,Dainan Zhang,Youbin Zheng,Shuyang Ma,Cheng Liu,Qinghui Yang,Huaiwu Zhang
This study modified CaWO 4 ceramics through co-doping with Li + and Mo 6+ , and prepared Li x Ca 1-x W 1-x Mo x O 4 (x = 0–0.10) using the solid-state reaction method. The results show that at x = 0.02 and sintered at 850 °C, the material exhibits optimal comprehensive performance: ε r ≈ 9.95, Q × f = 79,683 GHz, and τ f improved from −53 to +5.08 ppm/°C, achieving low-temperature sintering and effective temperature stability control. Mechanism analysis indicates that the enhancement of Mo–O bonds and charge transfer behavior contribute to reducing dielectric loss and improving temperature stability. The material also demonstrates good dielectric performance in the terahertz frequency band. A patch antenna designed based on this material achieves a radiation efficiency of 91.47% at 11.65 GHz, highlighting its potential for application in high-frequency LTCC devices.
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DIAMOND AND RELATED MATERIALS
·
2026
·
IF 5.2
Xianfeng Ma,Huiying Dai,Luyao Zhao,Xiaolan Liang,Xiuquan Xu,Xiaofeng Yu
A low-cost Cu-Mo dual-doped carbon nitride nanozyme was synthesized. • It shows excellent peroxidase-like activity via superoxide radical pathway. • A smartphone-based platform enables portable and visual D-PA detection. D-Penicillamine (D-PA), a sulfur-containing amino acid, is used to treat various diseases such as Wilson's disease, fibrotic lung disease, and cystinuria. However, excessive intake of D-PA can cause adverse effects, necessitating the development of accurate quantitative detection methods. This study aimed to establish a visual colorimetric method for D-PA detection using a synthesized Cu-Mo dual-doped carbon nitride nanomaterial ( Cu - Mo - VC - CN ). The synthesis capitalizes on the simplicity and cost-effectiveness of a one-pot thermal polymerization reaction, utilizing only inexpensive and commercially available precursors, namely copper chloride, ammonium molybdate, urea, and vitamin C. The material exhibited exceptional peroxidase-like activity, catalyzing the oxidation of TMB by H 2 O 2 via a superoxide radical pathway. The optimal reaction conditions were: temperature 30 °C, time 30 min, pH 5.5, TMB concentration 0.2 mM, and H₂O₂ concentration 0.2 mM. Steady-state kinetic analysis revealed that the Cu - Mo - VC - CN nanozyme had Michaelis-Menten constants ( K ₘ) of 0.083 mM for TMB and 0.603 mM for H 2 O 2 . Under optimal conditions, the system enabled highly sensitive D-PA quantification with a linear range of 0.5–100 μM and a detection limit of 0.45 μM. The nanozyme was successfully applied to determine D-PA content in pharmaceutical tablets with satisfactory recovery (from 97.73 to 98.27%). Furthermore, a smartphone-based testing platform was established to provide a portable and practical solution for the real-time monitoring of D-PA. This work provides both an efficient strategy for developing multi-metal-doped nanozymes and a reliable colorimetric platform for D-PA monitoring. Download: Download high-res image (279KB) Download: Download full-size image
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高影响因子
APPLIED SURFACE SCIENCE
·
2026
·
IF 6.6
Ming Ya,Teng Guo,Chenxi Xiong,Jie Zhu,Zhenyu Zhang,Huiping Ji,Jianghao Wang,Bolong Li,Jie Fu
Boron doping activates MoS 2 basal planes and constructs B-Mo dual Lewis acid sites for NRR. • B-MoS 2 -5 delivers superior NRR performance of NH 3 yield of 22.1 μg mg -1 cat. h −1 , and a FE of 27.1%. • In-situ ATR-FTIR confirms B-Mo sites enhance N 2 activation and suppress HER. Ambient electrochemical nitrogen reduction reaction (NRR) powered by renewable electricity offers a sustainable alternative to the energy-intensive Haber-Bosch process. However, achieving efficient N≡N bond activation while suppressing the competing hydrogen evolution reaction (HER) in aqueous electrolytes remains a major challenge. Herein, we fabricated Boron-doped MoS 2 (B-MoS 2 ) nanoflowers with abundant asymmetric B-Mo Lewis acid sites as electrocatalysts for NRR. In 0.1 M Na 2 SO 4 , the optimized B-MoS 2 achieves an ammonia yield rate of 22.1 μg mg -1 cat. h −1 at −0.35 V vs. reversible hydrogen electrode (RHE) and faradaic efficiency (FE) of 27.1% at −0.3 V vs. RHE, outperforming most previous reports. The superior performance is attributed to the synergistic effect of the B-Mo dual Lewis acid sites: the electron-deficient B site enhances N 2 adsorption by capturing its lone-pair electrons, while Mo promotes π-backdonation to polarize and activate the N≡N bond. Simultaneously, the strong Lewis acidity of B suppresses H⁺ adsorption, inhibiting HER. In-situ electrochemical attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopy further confirms B-Mo sites boost N 2 adsorption and activation, favoring NRR over HER. This work provides insights for the rational design of sustainable electrocatalysts for ambient nitrogen fixation. A phase-engineered boron-doped MoS 2 nanoflowers were synthesized for enhancing B-Mo dual-site accessibility and efficient electrochemical nitrogen fixation. Download: Download high-res image (144KB) Download: Download full-size image
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高影响因子
INORGANIC CHEMISTRY COMMUNICATIONS
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2026
·
IF 5.9
Qin Shi,Chunyan Lu,Huxin Xie,Chenxu Liu,Xian Xia,Min Xu,Qingjun Xue,Chunxia Mu,Chuanqi Zhao,Honghui Pan,Xixiang Liu,Yan Wang
The long-term stability and reuse potential of the photocatalyst are of great concern for the degradation of organic pollutants in wastewater. A recycled photocatalyst with high reusability was synthesized by immobilizing BiVO 4 nanoparticles on alumina foam ceramic (BiVO@AFC) via a convenient dip-coating followed by calcination method. BiVO@AFC show stable photocatalytic activity for Rhodamine B (RhB) degradation over 90 cycles of experiments (180 h), requiring only 4 times of regeneration treatments. The regeneration is simple and economical, washing the photocatalyst with ultrapure water and dried it at 55 °C. Each regeneration could restore the RhB degradation rate to above 85%. Characterizations confirmed the stability of the materials in optical absorption and chemical properties. The dual doping of W and Mo within BiVO 4 (3 W-2Mo,BiVO@AFC) exhibits a synergistic effect, significantly enhancing photocatalytic performance and stability. The co-doping also can suppress the loss in specific surface area and pore volume of BiVO@AFC originated from the normal wear and tear during the photocatalytic process. As a result of that, the RhB degradation rate of 3 W-2Mo:BiVO@AFC remained above 80% over 90 cycles of experiments (180 h) requiring 4 times of regeneration. And the RhB degradation rate can be restored to above 94% by the same regeneration with BiVO@AFC. Photogenerated hole (h + ) plays a major role in removing RhB in this case. While the dual doping of W and Mo is in favour of generating more ·OH and ·O₂ − radicals for degradation by promoting photocharges transfer and separation. These make it a promising candidate for large-scale applications for wastewater treatment.
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高影响因子
DIAMOND AND RELATED MATERIALS
·
2026
·
IF 5.2
Muhammad Ali Hamza Shahbaz,Madaminov Sanjarbek Maxmudjon ugli,Hamid Nasir,Maryam Al Huwayz,Muneerah Alomar,Amir Muhammad Afzal,Sohail Mumtaz,Abhinav Kumar
Dysprosium cobalt oxide (DCO)-graphitic carbon nitride (gCN)-MXene hybrid nanocomposites were synthesized with a simple hydrothermal technique for advanced energy storage and catalysis devices. The result of XRD, SEM, and XPS analyses validated that it exhibited high crystallinity, uniform morphology, and a significant amount of surface functionalities. The electrochemical testing was conducted, and the specific capacity (Qs) is estimated to be 1865.9C g −1 at 3 mV s −1 , while the hybrid supercapacitor has a Qs of 280.04C g −1 , energy density (Ed) of 45 Wh kg −1 , and power density (Pd) of 2836 W kg −1 . Furthermore, the composite showed a remarkable electrocatalytic activity with an overpotential of 69 mV and the Tafel slope of 64 mV dec −1 , which indicates that it has good charge transfer property. The findings prove that DCO@MXene@gCN is an electroactive material with multifunctional properties suitable for novel and advanced energy systems. Download: Download high-res image (176KB) Download: Download full-size image
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高影响因子
APPLIED SURFACE SCIENCE
·
2026
·
IF 6.6
Yuanhao Mao,Chunfeng Mao,Xincai Chen,Run Qian,Ziyi Wang,Lanjing Zhao,Pengxu Yan,Yuxi Zhang
The surface of the C shell is covered with mesoporous channels, which promotes the occurrence of the confinement effect. • The abundant hydroxyl groups enable the C shell not only to exert physical adsorption but also to cooperate with chemical adsorption. • Both the dual transition metal regulation mechanism and the electron cooperative mechanism can be applied in ODS. • The desulfurization rate (99.53%) can be achieved under the mild reaction condition with less dosages of catalysts and ILs. • EPR analysis and radical scavenging assay experiments confirmed that one type of free radicals acts in the ODS. Common transition metal catalysts have been widely applied in catalytic reaction. However, the shortcomings in electronic regulation mechanism, confinement effect, and synergistic adsorption remain to be urgently addressed. This study designed a dual-transition-metal-based catalyst (Mo-W@C) with a surface rich in hydroxyl functional groups. Its bimetallic active components are obtained through protonation reaction. The C shell is coated on the bimetallic active components through self-assembly and directional anchoring. These procedures reduce the interatomic distance between Mo and W in the bimetallic active component, enhancing the electronic interaction between them. The confinement effect of the C shell accelerates the collision of reaction molecules. Furthermore, the abundant hydroxyl groups on the surface of the C shell facilitate the rapid adsorption of H 2 O 2 . A high sulfur removal rate of Mo-W@C (99.56 %) was achieved under mild reaction conditions (V(ILs) = 0.1 mL, m(catalyst) = 10 mg, V(H 2 O 2 ) = 0.15 mL, 80 °C, 90 min). Moreover, the catalyst still maintained a high desulfurization rate (95.76 %) after seven cycles. The catalytic reaction mechanism involving peroxide state and electronic synergy was elucidated by experiments and analyses (XPS, EPR, etc.). This catalytic structure provides a new perspective for the research on supported catalysts. Download: Download high-res image (151KB) Download: Download full-size image
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ACS Applied Materials & Interfaces
·
2026
·Vol. 18
·期 32
·43929-43939
·
IF 7.8
Zhang Li Ang,Liu Jinmei,Li Saixuan,Li Bo,Zhang Fanyu,Cui Nuanyang,Xie Chao,Gu Long
Implantable medical devices that fully degrade in the body eliminate the need for removal surgeries, yet powering them transiently remains a challenge due to low energy harvesting efficiency. Here, we introduce a fully biodegradable hybrid nanogenerator (FB-HNG) with dramatically enhanced output, enabled by biodegradable molybdenum (Mo) nanoparticle-mediated dielectric modulation. By incorporating Mo nanofillers into a PLGA triboelectric layer, we significantly enhance its dielectric constant, surface roughness, and electronegativity. When integrated with a self-assembled polyvinyl alcohol/glycerol/polyvinyl alcohol (PVA/Gy/PVA) piezoelectric heterostructure film, the synergistic hybrid device achieves a record output charge density of 9.6 nC/cm 2 among fully biodegradable nanogenerators to date. The entire system, comprising fully degradable components, including the absorbable Mo metal, undergoes complete dissolution after its functional lifespan. In vitro and in vivo biocompatibility assessments confirm its excellent biosafety. This work presents a dielectric-modulation strategy to boost the output of fully biodegradable electronics, highlighting the potential of nanogenerators for powering transient implantable medical devices.
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PubMed
高影响因子
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
·
2025
·Vol. 222
·期 15
·2500353
·
IF 1.9
Xia Deng,Laijun Liu,Jungu Xu
The K 2 ZnV 2 O 7 material, as reported in our previous work, undergoes a phase transition from melilite-related structure to typical melilite structure upon Ga doping on the Zn site, with interstitial oxygen introduced and accompanied by an approximately two orders of magnitude ionic conductivity improvement (≈1.01 × 10 −1 S cm −1 at 600 °C for K 2 Zn 0.7 Ga 0.3 V 2 O 7.15 ). Herein, in order to further enhance the oxide-ion conduction by introducing more interstitial oxygen into the structure, a series of Ga and Mo codoped K 2 Zn 1- x Ga x V 2- y Mo y O 7+0.5 x +0.5 y (0 ≤ x ≤ 0.2, y = 0.1 and 0.2) materials are designed and synthesized via the traditional solid-state reaction method, with their phases and electrical properties being systematically studied. The results reveal that the Ga and Mo codoped materials retain the melilite-related structure and show a much lower conductivity, e.g., only ≈1.49 × 10 −2 S cm −1 at 600 °C for the composition of K 2 Zn 0.8 Ga 0.2 V 1.8 Mo 0.2 O 7.2 , despite its higher interstitial oxygen concentration compared to the single Ga-doped K 2 ZnV 2 O 7 (e.g., K 2 Zn 0.7 Ga 0.3 V 2 O 7.15 ). Therefore, the introduction of Mo into the structure appears to suppress the phase transition and decrease the mobility of interstitial oxygen for the K 2 ZnV 2 O 7 -based materials. These findings provide a more comprehensive perspective on the oxide-ion conduction optimization of melilite or melilite-related materials.
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高影响因子
Processes
·
2025
·Vol. 13
·期 8
·2594
·
IF 2.8
Tao Shi,Xiaoling Huang,Zhan Zhao,Zizhen Li,Kelei Huang,Xiangchao Meng
Electrocatalytic water splitting has been demonstrated to be a highly efficient and promising technology for green hydrogen production. However, the inefficiency and instability of the cathode hinder its wide application in water electrolysis. Herein, we report a rapid Joule heating method for synthesizing the Ru-Mo oxide catalyst. Comprehensive characterization results confirmed that the as-prepared catalyst featured an internal porous structure with low crystallinity, which weakened the strength of Ru-H bonds through structural and electronic modulation. The enhanced HER performance was attributed to the incorporation of Mo4+species, which strengthened Ru-O-Mo interactions. As tested, the optimized catalyst exhibited ultralow overpotentials (25.08 mV and 120.52 mV @ 10 and 100 mA cm−2, respectively) and excellent stability (100 h @ 100 mA cm−2) in a 1 M KOH solution. Meanwhile, the as-prepared catalyst was equipped in an anion exchange membrane (AEM) alkaline water electrolyzer, which could deliver 185 mA cm−2at only 2.16 V with 100% Faradaic efficiency. This study provides a feasible strategy for constructing highly efficient low-crystallinity electrocatalysts.
研究领域:
电化学
·
材料科学
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能源化学
·
催化化学
·
纳米材料
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高影响因子
WEAR
·
2025
·
IF 6.1
Changhao Zuo,Lei Xu,Zhimeng Tang,Yongfen Sun,Guo Zheng,Yishu Zhao,Bin Hu,Rui Zhou
In the present work, W, Mo, and MoS 2 reinforced graphite/copper composites were prepared using microwave sintering. By focusing on the copper matrix and graphite reinforcement, W and Mo elements were introduced into the copper matrix, while MoS 2 was doped into the graphite. During sintering, carbide pinning phases and Cu-Mo-S transition layers were formed at the graphite/copper interface, enhancing the interfacial bonding between graphite and copper. The effects of sintering time on the microstructure and properties of the composites were investigated, including their tribological performance under varying friction loads and linear speeds. A sintering time of 60 min was observed to lead to composite materials with improved microstructural properties, specifically a higher density of pinning phases and Cu-Mo-S transition layers, as well as a uniform microstructure. Significant improvements were observed in density, hardness, electrical, and thermal conductivity. Under a friction load of 4 N and a sliding speed of 1.7 m/s, the wear rate of the composites was only 4.52 × 10 −8 cm 3 N −1 m −1 . These findings provide a reference for improving the interface of graphite/copper composites and their application in the field of friction and wear.
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高影响因子
ACS Applied Materials & Interfaces
·
2026
·
IF 7.8
Xingzhuo Han,Peng Wu,Yibo Wang,Xiuli Hu,Zhiyu Jia,Juan Gao
The lower thermodynamic potential of the urea oxidation reaction (UOR) makes it an ideal alternative to the conventional oxygen evolution reaction (OER). However, most Ni-based UOR catalysts face intrinsic limitations due to the high oxidation potential of Ni3+, coupled with insufficient selectivity. Herein, F/Mo codoped Ni-based catalyst F-MoNiP is obtained with an amorphous nanotube structure. The F/Mo codoped strategy enhances UOR activity by facilitating the formation of catalytically active NiOOH species at low overpotential and simultaneously promotes urea decomposition through the environmentally preferred carbonate pathway. Moreover, the presence of F effectively suppresses the OH– adsorption, thereby minimizing the competition with OER. This synergistic optimization enables F-MoNiP to achieve exceptional catalytic performance, operating at a cell voltage of 1.395 V to deliver a current density of 10 mA cm–2 in urea-assisted electrolysis of water. These findings offer a sustainable and energy-efficient route for hydrogen production through urea electrolysis.
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高影响因子
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