iScience
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2025
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IF 4.1
Kefu Zhu,Shuangming Chen,Xiaoyu Han,Feiran Shen,Shiqiang Wei,Changda Wang,Wen Wen,Lunhua He,Li Song
Layered VS 2 with large interlayer spacing and high conductivity is a promising cathode for aqueous zinc-ion batteries (AZIBs) but suffers from structural instability. Here, a VS 2 /MnS hybrid is designed to stabilize the VS 2 framework through electrochemically induced structural reconstruction. Rietveld refinement of neutron diffraction data confirms the coexistence of hexagonal 1T-VS 2 and cubic MnS, with VS 2 as the dominant phase. Operando synchrotron radiation X-ray diffraction reveals gradual MnS dissolution during the first charge and limited Mn incorporation into VS 2 , forming a stable Mn-intercalated phase (VS 2 -Mn). X-ray absorption spectroscopy and density functional theory demonstrate that VS 2 -Mn exhibits improved structural stability, electrical conductivity, and electron-transfer capability. Benefiting from this reconstruction, the VS 2 -Mn electrode delivers a high capacity of 297.9 mAh g -1 at 0.1 A g -1 , outstanding cycling stability (78.6% after 3000 cycles at 10 A g -1 ), and excellent rate capability. This study highlights structural reconstruction as an effective route to design advanced AZIB cathodes.
研究领域:
材料科学
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电化学
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储能技术
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纳米材料
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电池技术
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DOI
PubMed
高影响因子
Journal of Energy Chemistry
·
2026
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IF 15.6
Jingyu Sun,Li Zhang,Fengbo Li,Zhen Cao,Meiyu Liu,Fajun Yang,Shaobin Li
The vanadium disulfide (VS 2 ) possesses great potential as an excellent zinc-ion energy storage material due to low diffusion barrier and reversible redox activity. However, its high-rate zinc-ion storage capability is limited by nanosheet restacking, structural fragility, and vanadium dissolution. Herein, a synergistic strategy integrating oxygen-induced coordination reinforcement with C–N structural and conductive network reinforcement is proposed to realize thermodynamic-kinetic stabilization of VS 2 cathodes. The incorporation of oxygen converts unstable V–S bonds into a stronger, more ordered V–O coordination, reconstructing the ligand field and stabilizing the vanadium valence state, which effectively inhibits dissolution. Concurrently, the polydopamine (PDA)-derived C–N provides stable anchoring sites to immobilize vanadium species, while CNT frameworks build efficient electron/ion transport pathways and buffer volume strain. The DFT calculations and synchrotron analyses verify the ligand-field reconstruction and vanadium stabilization mechanism. Consequently, the VS 2 /V 2 O 3 -NC/MWCNTs-C (denoted as VSO-NC/MWCNTs-C) delivers a high capacity of 358.89 mA h g −1 at 0.5 A g −1 , excellent rate capability of 242.22 mA h g −1 at 10 A g −1 , along with a high energy/power density of 388.64 Wh kg −1 /1000 W kg −1 , maintaining excellent stability over 6000 cycles at 10 A g −1 . This work offers an atomic-level coordination engineering strategy for advanced V-based cathodes for zinc-ion energy storage. The VSO-NC/MWCNTs-C cathode exhibits stable structural integrity, accelerated Zn 2+ transport, and significantly suppressed vanadium dissolution, delivering high capacity, fast kinetics, and long-life cycling for next-generation zinc-ion energy storage. Download: Download high-res image (301KB) Download: Download full-size image
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高影响因子
Biosensors-Basel
·
2021
·Vol. 11
·期 10
·378
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IF 5.519
Jinfeng Quan,Yihan Wang,Jialei Zhang,Kejing Huang,Xuemei Wang,Hui Jiang
Arch-cruciform DNA are self-assembled on AuNPs/VS2scaffold as a highly sensitive and selective electrochemical biosensor for michigan cancer foundation-7 (MCF-7) breast cancer cells. In the construction, arch DNA is formed using two single-strand DNA sequences embedded with the aptamer for MCF-7 cells. In the absence of MCF-7 cells, a cruciform DNA labeled with three terminal biotin is bound to the top of arch DNA, which further combines with streptavidin-labeled horseradish peroxidase (HRP) to catalyze the hydroquinone-H2O2reaction on the electrode surface. The presence of MCF-7 cells can release the cruciform DNA and reduce the amount of immobilized HRP, thus effectively inhibiting enzyme-mediated electrocatalysis. The electrochemical response of the sensor is negatively correlated with the concentration of MCF-7 cells, with a linear range of 10~1 × 105cells/mL, and a limit of detection as low as 5 cells/mL (S/N = 3). Through two-dimensional materials and enzyme-based dual signal amplification, this biosensor may pave new ways for the highly sensitive detection of tumor cells in real samples.Keywords:MCF-7 cells;electrochemistry;2-D materials;signal amplification;DNA assembly
研究领域:
生物传感
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肿瘤检测
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分子生物学
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DOI
PubMed
高影响因子
Materials Today Communications
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2025
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IF 4.5
Kecheng Lu,Pengjie Fan,Zebing Xu,Guang Deng,Wenbin Jiang,Zhaojin Ran,Ran Mo,Chenggang Hao,Hua Cen,Zhongmin Wang
To address the issues of severe corrosion (especially in chloride-rich marine environments) and microbial adhesion-induced biofouling that limit the service life of aluminum alloys, this study developed an integrated surface protection system for aluminum substrates by synergizing anodic oxidation and composite functional coating technologies. First, an anodized aluminum oxide (AAO) layer was constructed on 5052 aluminum alloy, then VS 2 micro-nano particles were synthesized via hydrothermal method while SiO 2 nanoparticles were hydrophobically modified with 1H,1H,2H,2H-perfluorodecyltriethoxysilane (PFDTES, denoted as P-SiO 2 ), and finally P-SiO 2 and VS 2 (optimal mass ratio of 3:1) were sprayed onto the AAO surface with epoxy resin as binder to form the organic-inorganic superhydrophobic composite coating (AAO@P-SiO 2 /VS 2 ). Multiple characterization techniques including XRD, XPS, FTIR, SEM, HRTEM, ICP-OES, laser particle size analyzer and surface roughness tester were used to systematically confirm the phase purity, elemental composition, valence state, micro-nano morphology, thickness, stoichiometry and roughness of the coating and its components. Performance tests showed that the composite coating exhibited excellent superhydrophobicity (water contact angle of 152.12°, sliding angle of 4.6°) and corresponding self-cleaning ability, significantly enhanced corrosion resistance (self-corrosion current density of 6.053 ×10⁻ 11 A/cm 2 , 1 order of magnitude lower than AAO and 5 orders of magnitude lower than bare aluminum alloy; low-frequency impedance modulus of 4.50 ×10 8 Ω·cm 2 ), outstanding antibacterial activity (99.89 % antibacterial rate against Pseudomonas aeruginosa , and effective inhibition against Escherichia coli and Staphylococcus aureus ) as well as good stability and durability (excellent wear resistance, high adhesion of 18.20 MPa, and water contact angle remaining above 150° after 30 days of immersion in 3.5 wt% NaCl solution). This study innovatively integrates anodization with PFDTES-modified SiO 2 and VS 2 -based antibacterial composite coating, providing a cost-effective and sustainable solution for enhancing the multifunctional protection of aluminum alloys, which is of great significance for extending the service life of metal equipment, especially in marine and harsh industrial environments.
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高影响因子
Journal of Energy Storage
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2026
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IF 10.7
Xu Zhang,Qifan Gu,Jiabao Bai,Guoting Long,Yana Liu,Yunfeng Zhu,Jiguang Zhang,Jun Wang,Rui Shi,Xiaohui Hu
VS 2 has attracted extensive attention as potential host material for Mg 2+ /Li + hybrid-ion batteries (MLHBs) because of its considerable capacity and large interlayer spacing. However, the relatively weak adsorption ability and huge volume variations lead to slow reaction kinetics and poor cycle lifespan, which greatly restricts their further application in MLHBs. Herein, we have proposed a synergistic engineering of morphology regulation and sulfur vacancy for the construction of hierarchical VS 2 microflower via two pivotal procedures, which is demonstrated as a high-energy density cathode for MLHBs. Specifically, such special microflower morphology with sufficient interspace and abundant sulfur vacancies can release the inner stress to maintain structural integrity, thus leading to enhanced cycling stability. Meanwhile, the synergistic effect of flower-like structure and abundant sulfur vacancies contributes to providing sufficient redox-active sites, facilitating charge transfer, improving Li + adsorption capacity, and accelerating ion diffusion, as verified by kinetic analysis and theoretical calculations. Consequently, the hierarchical VS 2 microflower exhibits a high reversible capacity of 488.8 mAh g −1 at 100 mA g −1 , an excellent energy density of 406.6 Wh kg −1 , and an ultralong cycling stability with a capacity retention of 72.8% at 4000 mA g −1 after 2000 cycles. Besides, surface-controlled capacitive contribution analysis coupled with in-situ electrochemical impedance spectra (EIS) measurements confirm the excellent reaction kinetics. Therefore, this work presents a synergistic engineering strategy that combines morphology regulation and vacancy introduction in the fabrication of VS 2 -based cathodes for advanced MLHBs.
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高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
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2022
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IF 4.598
Dexi Liu,Shichang Xu,Yanmeng Cai,Yue Wang,Jiaqi Guo,Youlin Li
The conventional separation technologies, like chemical precipitation and adsorption processes, cannot quickly and selectively separate and recycle heavy metal ions from waste. Due to its rich sulfur content and excellent electrical conductivity, vanadium disulfide is a potential material for effectively removing lead from wastewater. The vanadium disulfide material with selective adsorption ability was introduced into CDI technology to construct a coupling technology with both advantages. The N -doped modified ZIF@vanadium disulfide (ZAC@VS 2 ) composites were successfully synthesized by hydrothermal method. Electrosorption experiments show that ZAC@VS 2 material presents the remarkable saturated adsorption capacity to lead(II) ions (239.52 mg/g) in the 500 mg/L PbCl 2 solution. In the triplex blend system (Fe 3+ /Pb 2+ /Na + ) with each solute density of 100 mg/L, the saturated adsorption efficiency of 85.4% to Pb 2+ can still be maintained. In addition, compared with the Langmuir(R 2 =0.873) adsorption isotherm model, the Freundlich model (R 2 =0.922) can be better used to fit the adsorption process, which proves that the adsorption process is multilayered and heterogeneous. XPS tests and competitive adsorption experiments show that the electric double layer (EDL) and complexation together promote the selective adsorption of heavy metal ions by ZAC@VS 2 . ZAC@VS 2 composite electrode shows excellent performance in the removal of lead ions in battery waste liquid, indicating the potential of introducing ZAC@VS 2 into CDI to remove lead ions.
研究领域:
环境科学
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材料科学
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水处理技术
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重金属污染控制
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电化学工程
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高影响因子
COMPOSITES PART B-ENGINEERING
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2026
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IF 14
Xinyue Wang,Wenlin Zhang,Bingrui Han,Jianzhao Liu,Qianhui Zhang,Qihua Zhi,Haoyan Duan,Jianwei Wang,Feng Fu
In aqueous zinc-ion batteries, layered VS 2 cathodes offer high conductivity and multi-electron reactivity but suffer from severe structural degradation and sluggish kinetics. While heterojunction engineering can enhance charge transfer via built-in electric fields, the precise regulation of interfacial electronic structures remains a significant challenge. Herein, we introduce a novel ion-engineering strategy that employs alkaline earth metal ions (Ca 2+ , Sr 2+ ) with distinct ionic radii to effectively modulate VS 2 -based heterojunctions. Experimental characterizations coupled with density functional theory calculations indicate that, relative to VS 2 /CaV 4 O 9 , the VS 2 /SrV 3 O 7 heterostructure exhibits an upshifted V 3d-band center (−0.724 eV), while SrV 3 O 7 possesses a narrower bandgap (2.41 eV), and lower work function (4.27 eV), collectively supporting more favorable interfacial electronic modulation. These electronic modulations induce a robust internal electric field, which effectively promotes interfacial charge transfer. The larger Sr 2+ transforms the morphology from dense stacked layers (VS 2 ) into a 3D nanoflower assembled from ultrathin nanosheets. Consequently, the VS 2 /SrV 3 O 7 cathode delivers an exceptional reversible specific capacity of 455.4 mAh g −1 at 0.5 A g −1 , and an exceptional rate capability of 181.6 mAh g −1 at an ultrahigh current density of 20 A g −1 . Furthermore, it exhibits a dramatically enhanced Zn 2+ diffusion coefficient ranging from 10 −11 to 10 −8 cm 2 s −1 , along with long-term durability, retaining 121.4 mAh g −1 after 10,000 cycles at 15 A g −1 with a highly reversible 3D nanoflower morphological evolution. This work provides deep mechanistic insights into ionic-radius-modulated built-in electric fields, paving a new avenue for rational cathode design.
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高影响因子
ADVANCED FUNCTIONAL MATERIALS
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2025
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IF 19
Jie Zhou,Keying Cai,Tianci Zhou,Xiangfei Li,Yawen Li,Can Zhang,Zhuoyuan Zheng,Yusong Zhu
Li-dendrite growth and polysulfides shuttle are two core problems that restrict the applications of lithium-sulfur batteries (LSBs). Here, a double-layer-modified gel separator (DMS) is proposed to enable a shuttle-inhibition and dendrite-free quasi-solid-state LSB, where the polypropylene separator is sandwiched between an ultra-thin VS 2 layer (3 um) and a ceramic/polymer layer (6 um). On the cathode side, VS 2 layer can inhibit the polysulfides shuttle and boost their conversion kinetics. Meanwhile, on the anode side, the Li 1.3 Al 0.3 Ti 1.7 (PO 4 ) 3 (LATP)/PMMA/PVDF gel polymer electrolyte with the high-elastic-modulus and the homogenized Li-ion flux could effectively avoid dendrite growth. Last but not least, the quasi-solid-state LSB effectively prevents the evaporation of flammable ether-based electrolyte. Consequently, the quasi-solid-state-LSBs assembled with DMS show a high-capacity of 1197 mA h g −1 at 0.2 C and ultra-stable cycling performance over 800 cycles at 2 C with the decay rate of just 0.032% per cycle. Even with the high-sulfur-loading of 2.5 mg cm −2 , the LSB still delivers the high-capacity of 640.5 mA h g −1 at 2 C with stable cycling over 500 cycles. What's more, the assembled pouch cells still function properly even on the nail penetration and folding test, verifying the gel layer's integrity, and retention of electrochemical function under realistic conditions.
研究领域:
储能
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材料科学
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电化学
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电池技术
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高影响因子
Nature Communications
·
2022
·Vol. 13
·期 1
·1-9
·
IF 17.694
Zhao Ruirui,Wang Haifeng,Du Haoran,Yang Ying,Gao Zhonghui,Qie Long,Huang Yunhui
Aqueous zinc batteries are appealing devices for cost-effective and environmentally sustainable energy storage. However, the zinc metal deposition at the anode strongly influences the battery cycle life and performance. To circumvent this issue, here we propose the use of lanthanum nitrate (La(NO 3 ) 3 ) as supporting salt for aqueous zinc sulfate (ZnSO 4 ) electrolyte solutions. Via physicochemical and electrochemical characterizations, we demonstrate that this peculiar electrolyte formulation weakens the electric double layer repulsive force, thus, favouring dense metallic zinc deposits and regulating the charge distribution at the zinc metal|electrolyte interface. When tested in Zn||VS 2 full coin cell configuration (with cathode mass loading of 16 mg cm −2 ), the electrolyte solution containing the lanthanum ions enables almost 1000 cycles at 1 A g −1 (after 5 activation cycles at 0.05 A g −1 ) with a stable discharge capacity of about 90 mAh g −1 and an average cell discharge voltage of ∼ 0.54 V.
研究领域:
电化学
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材料科学
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能源存储
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DOI
高影响因子
ENERGY CONVERSION AND MANAGEMENT
·
2022
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IF 11.533
Zechang Wei,Chenyang Cai,Yu Fu
To reach global carbon neutralization, the use of clean energy and biomaterials has become a trend to reduce CO 2 emission. With the increasing concerns about freshwater shortage and crude oil pollution, water purification and sewage treatment have become particularly urgent. Solar energy is an environment-friendly energy to mitigate freshwater shortage stress and reduce crude oil pollution. However, how to make solar energy applied to effectively drive freshwater generation and crude oil pollution remedy is crucial. Herein, the electrospun membrane was explored as sustainable matrix with desirable solar-to-thermal performance. The strategy of spectrum-tailoring was proposed to tailor bandgap energy of vanadium disulfide (VS 2 ) for photothermal conversion promotion and interfacial evaporation efficiency. Inspired by mussel, dopamine was polymerized on surface of VS 2 (VS 2 @PDA) for spectrum tailoring (Solar absorptance, α, is 89.34 %). Bandgap energy of the complex favorably decreased from 2.06 to 1.41 eV. Combining the dual H-bonding networks, water evaporation enthalpy of the membranes dramatically decreased from 2370 to 1990.2 J/g and the resulted evaporators showed excellent salt resistance, with evaporation rate of 1.40 kg m -2 h −1 (enhancement factor is 2.032) and extraordinary cyclic evaporation performance. Additionally, sunflower-inspired tilting model was architectured to eliminate disturbance of sun irradiation incident angles for effective solar-driven interfacial generation. The resulted membrane effectively treated the seawater and decreased high viscosity of the super-viscous crude oil under the sun irradiation, thus showing great potential in seawater treatment and crude oil pollution remedy. The designs maximized utilization of solar energy and evaporation rates by treating seawater and reducing crude oil pollution without consuming additional energy, thus contributing to carbon neutralization. Therefore, the integration of dual H-bonding networks and spectrum-tailoring strategies would facilitate the structure-functional unification and desirable photothermal capabilities, and bring about an application potential in the development of composite evaporators for carbon neutralization.
研究领域:
材料科学
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环境科学
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能源科学
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化学工程
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可持续技术
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DOI
高影响因子
危险品化学品经营许可证（带存储）