ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Xin-ya Bu,Yan-li Zhu,Cong-jie Wang,Wei Li,Yu Xia,Yong Zhao
Thermal batteries are solid-state, thermally activated batteries with long storage times and high reliability. FeS2 is used as a cathode material commonly, but the high internal resistance and low voltage platform limit the improvement of battery performance. Herein, the 1T-phase vanadium disulfide (VS2) is prepared via the scalable hydrothermal method and applied to thermal battery cathode materials for the first time. 1T-VS2 lamellar flower clusters have high electronic conductivity (1.583 S cm–1) at room temperature, which is 75 times higher than FeS2 (0.021 S cm–1). Mechanism analysis shows that 1T-VS2@V2O3 can be formed based on the part of 1T-VS2 being oxidized to V2O3 at the discharge temperature. Benefiting from the synergistic effect of vanadium sulfide and vanadium oxide as a cathode for thermal batteries enhanced specific capacity (292.4 mA h g–1) and mass energy density (572.5 W h kg–1) when cutoff voltage is 1 V. Additionally, the discharge results indicate that the cells utilizing 1T-VS2 cathodes provided a higher voltage platform of 2.11 V than 1.84 V for FeS2. This impressive work can offer a good strategy for boosting cathode materials for a high-performance thermal battery.
研究领域:
材料科学
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电化学
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能源存储
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DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2022
·
IF 9.965
Jing Xu,Yinbing Liu,Peilong Chen,Ao Wang,Ke-jing Huang,Linxia Fang,Xu Wu
Currently, the development of polyvalent ions battery systems are still restricted by lacking suitable cathode materials with high energy density and long cycle life attributing to sluggish kinetic mechanism and of polyvalent ions. Herein, an effective inter-layer scaling strategy is proposed by using a simple hydrothermal method . The super layer spacing VS 2 (∼1 nm) cathode dramatically improves electrochemical performance of zinc-ion batteries (ZIBs) and magnesium/lithium hybrid ion batteries (MLIBs). The specific discharge capacities of ZIBs and MLIBs are 450.7 and 488.8 mA h g −1 at current density of 0.1 A g −1 which are much higher than the same type of battery systems. Finally, the diffusion mechanism and the corresponding theoretical model is established by adopting first principles . In brief, the work provides an effective strategy for the large scale application of multivalent and hybrid batteries systems.
研究领域:
材料科学
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电化学
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能源存储
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DOI
PubMed
高影响因子
ACS Sustainable Chemistry & Engineering
·
2025
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IF 7.3
Jing Li,Guansheng Ma,Zhengguang Shi,Sushmita Dwivedi,Yaohui Zhang,You Wang,Cheng-Te Lin,Hsu-Sheng Tsai
VS2 has attracted attention as a prospective electrode material for lithium-ion batteries (LIBs) due to its distinct advantages including high conductivity and large layer spacing. However, the limited electrochemical activity and ionic conductivity restrict its real applications. In this work, sulfur vacancies (Vs) were introduced into VS2 via Ar plasma treatment for the first time in order to enhance the electrical conductivity, increase the number of electrochemically active sites, stabilize adsorption sites, and facilitate rapid Li+ diffusion. The designed Vs-rich VS2 delivers higher reversible capacity and better cycling stability (1137.5 mA h g–1 at 0.1 A g–1 after 100 cycles, 485.4 mA h g–1 at 1 A g–1 after 1000 cycles) than those of pristine VS2 (395.9 mA h g–1 at 0.1 A g–1 after 100 cycles, 204.4 mA h g–1 at 1 A g–1 after 1000 cycles). Moreover, the VS2–x//Li3V2(PO4)3/C full-cells exhibit high capacity and rate performance, holding promise for high-performance energy storage applications. Additionally, the insertion and conversion mechanisms of Vs-rich VS2 for Li+ storage were elucidated by ex situ X-ray diffraction (XRD) analysis. The density-functional theory (DFT) calculations show that sulfur vacancies favor Li+ adsorption on VS2 by increasing the number of adsorption sites and improving the adsorption energy. This study offers valuable insights for designing advanced anode materials for LIBs.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Guimiao Wang,Peilin Ran,Jingfei Guan,Baifei Wu,Shuo Wang,Min Liu,Hang Yang,Meilin Chen,Danmei Yu,Bin Zhang,Liyong Gan,Xiaoyuan Zhou
Although rechargeable magnesium batteries (RMBs) offer high volumetric energy density and intrinsic safety, their practical application and development are severely hindered by the sluggish diffusion of Mg 2+ ions due to the strong electrostatic interaction with host structure of cathode materials. Herein, a Mo-doped vanadium disulfide (MVS) has been developed to improve Mg 2+ diffusion and promote development of RMBs. Research results confirm that doping an appreciate amount of Mo can expand the interlayer spacing of (001) crystal plane in vanadium disulfide (VS 2 ), induce rich defects, and improve its surface area and electronic conductivity, thus facilitating the diffusion of Mg 2+ and electrode reaction kinetics. Consequently, the battery Mg//MVS delivers a discharge capacity of 292.5 mAh g −1 at current density of 100 mA g −1 and excellent rate capability. Moreover, it can also charge and discharge stably 1400 cycles at 1000 mA g −1 with near 100% Coulomb efficiency. In addition, electrochemical and ex situ characterizations confirm that doping Mo does not change the cathode reaction mechanism but significantly increases the diffusion coefficient of Mg 2+ ions, and improves structural stability and reaction reversibility during charge-discharge. This work establishes a viable structural-regulation strategy for developing high-performance cathode of RMBs and also proposes some fundamental insights into modulation mechanism of next-generation multivalent ion storage systems.
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DOI
高影响因子
ACS Nano
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2020
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IF 14.588
Jianan Wang,Shanshan Yi,Jianwei Liu,Shiyi Sun,Yunpeng Liu,Duowen Yang,Kai Xi,Guoxin Gao,Amr Abdelkader,Wei Yan,Shujiang Ding,Ramachandran Vasant Kumar
Practical applications of lithium–sulfur batteries are simultaneously hindered by two serious problems occurring separately in both electrodes, namely, the shuttle effects of lithium polysulfides and the uncontrollable growth of lithium dendrites. Herein, to explore a facile integrated approach to tackle both problems as well as guarantee the efficient charge transfer, we used two-dimension hexagonal VS2 flakes as the building blocks to assemble nanotowers on the separators, forming a symmetrical double-side-modified polypropylene separator without blocking the membrane pores. Benefiting from the “sulfiphilic” and “lithiophilic” properties, high interfacial electronic conductivity, and the unique hexagonal tower-form nanostructure, the D-HVS@PP separator not only guarantees the effective suppression of the lithium polysulfide shuttle and the rapid ion/electron transfer but also realizes uniform and stable lithium nucleation and growth during cycling. Hence, just at the expense of an 11% increase in the separator weight (0.14 mg cm–2), the D-HVS@PP separator delivers an over 16 times higher initial areal capacity (8.3 mAh cm–2) than a conventional PP separator (0.5 mAh cm–2) under high sulfur-loading conditions (9.24 mg cm–2). Even when used under a low electrolyte/sulfur ratio of 4 mL g–1 and a practically relevant N/P ratio of 1.7, the D-HVS@PP separator still enabled stable cycling with a high cell-level gravimetric energy density. The potentials in broader applications (Li–S pouch battery and Li–LiFePO4 battery) and the promising commercial prospect (large-scale production and recyclability) of the developed separator are also demonstrated.
研究领域:
材料科学
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电化学
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能源存储技术
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DOI
PubMed
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
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2019
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IF 6.393
Jinling Zhang,Mengxiang Shang,Yao Gao,Jianyue Yan,Wenbo Song
High visible-light active materials with boosted photoelectric conversion efficiency are the key to fabricate high-performance photoelectrochemical (PEC) sensor. Herein, we report in-situ formation of VS 2 QDs-Bi 2 S 3 heterostructure for promising application in constructing PEC aptasensor. Dramatically enhanced photoelectric conversion capacity is verified by photoluminescence spectroscopy (PL), electrochemical impedance spectroscopy (EIS) and PEC measurements. The intrinsic metallic feature of VS 2 , efficient visible light absorption of Bi 2 S 3 nanotube, and well-aliened band structure between them are responsible to substantially enhanced photocurrent. By covalently linking 5′-NH 2 -terminated lysozyme (Lys) aptamer on the VS 2 QDs-Bi 2 S 3 heterostructure, a self-powered PEC aptasensor for Lys is constructed. Under optimal conditions, ultrasensitive and selective detection of Lys is established in a wide linear range of 3.5 pM-70 nM with good selectivity and stability. The detection limit is 1.1 pM. Trace monitoring Lys in biological systems is realized with desired accuracy and satisfactory recovery. This work illustrates the prospect of VS 2 QDs-based heterostructure for PEC sensing and possible photocatalytic applications.
研究领域:
生物传感
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材料科学
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分析化学
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DOI
高影响因子
Inorganics
·
2025
·Vol. 13
·期 6
·199
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IF 3
Jingwei Wang,Xuejun Zheng,Long Xie,Zhenhua Xiang,Wenyuan He
It is found that Mo doping can enhance the supercapacitor performance of VS2microflowers. The X-ray diffraction combined with energy dispersive X-ray, X-ray photoelectron spectroscopy, and Raman spectra results verify the successful doping of Mo atoms into the VS2matrix. As the electrode material of supercapacitors, the Mo-doped VS2performs better electrochemical performance than pristine VS2, achieving the specific capacitance of 170 F g−1at 0.5 A g−1and 389.5 F g−1at 5 mV s−1. Furthermore, the symmetric supercapacitor based on the Mo-doped VS2exhibits good stability and ideal rate capability. The enhanced capability is presumably ascribed to the more accessible active sites and faster electrons/ions diffusion kinetics, which are caused by the increased specific surface area, expanded interlayer spacing, and improved conductivity after Mo doping. This strategy can also be extended to strengthen the capacitive properties of other transition metal dichalcogenides for advanced energy storage devices.
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高影响因子
JOURNAL OF POWER SOURCES
·
2020
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IF 8.247
Tao Chen,Xiaoquan Zhu,Xifan Chen,Qicheng Zhang,Yang Li,Wenchao Peng,Fengbao Zhang,Xiaobin Fan
Aqueous rechargeable zinc-ion batteries (ZIBs) have been considered as potential grid-scale energy storage devices owing to their low cost, high safety, and environmental friendliness . However, the cathode materials of ZIBs usually show poor cycling stability and inferior rate performance. Here, a new 2D hierarchical composite comprised of ultrathin VS 2 nanosheets perpendicularly grown on graphene sheets (rGO-VS 2 ) is prepared through a one-step solvothermal strategy. Benefiting from the unique hierarchical structure and synergistic merits between the VS 2 and graphene nanosheets , the rGO-VS 2 composite exhibits excellent performance as new cathode materials for ZIBs. Specifically, it not only can deliver a high capacity of 238 mAh g −1 at 0.1 A g −1 , but also maintains a capacity of 190 mAh g −1 at a quite high rate of 5 A g −1 with a capacity retention over 93% after 1000 cycles. This work highlights the great promise of rational designing high-performance rechargeable aqueous ZIBs .
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DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2025
·
IF 6.9
Jingwei Wang,Yaoyong Dong,Xuejun Zheng,Bei long,Hui Ling,Long Xie,Zhenhua Xiang,Wenyuan He
This report reveals that the hydrogen evolution activity of VS 2 can be effectively strengthened by inducing the surface charge redistribution of VS 2 via P non-metal doping. The XRD, TEM, GPA, EDS and XPS characterizations confirm that the P atoms are successfully doped into the VS 2 /CC matrix by substituting S atoms, resulting in lattice tensile strain and charge redistribution. The optimal P-doped VS 2 on carbon cloth (P-VS 2 /CC) exhibits a low overpotential of 274 mV at − 50 mA cm −2 and a small Tafel slope of 65.4 mV dec -1 , much lower than those of VS 2 /CC counterpart (622 mV and 120.1 mV dec −1 , respectively). Moreover, the P-VS 2 /CC delivers a long-term stability for 55 h without decay at 10 mA cm −2 , outperforming the VS 2 /CC. Density functional theory calculations suggest that P doping can induce the charge transfer from S and V to nearby P atoms, resulting in the decrease of hydrogen adsorption free energy at the S and V sites and the increase of total density of states at the Fermi level, thus far super hydrogen evolution activity. This work provides a hopeful new route for strengthening the HER activity of VS 2 , and offers a new perspective for developing advanced transition-metal chalcogenides electrocatalysts.
研究领域:
材料科学
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电化学
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纳米催化
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能源材料
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计算材料学
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产品关联
DOI
高影响因子
VACUUM
·
2024
·
IF 3.8
Xiaoyong Feng,Ziyi Guo,Gang Luo,Chun Wu,Wei Qin
Transition vanadium sulfide is a promising anode material for potassium-ion batteries (PIBs), but the volume variation during charge-discharge cycling and low electric conductivity seriously hinder its applications. Herein, we designed a multilayer lamellar self-assembled flower-like vanadium sulfide with ammonium ion intercalation (VS 2 –NF) by a facile and inexpensive hydrothermal method to improve its electrochemical potassium ion storage performance. By introducing ammonia during the hydrothermal synthesis process, the structures of vanadium sulfide transformed to nanoflowers composed by ultrathin nanosheets from the initial nanosphere structures. The intercalation of ammonium ion enlarges the lattice fringes and induces anisotropic growth of vanadium sulfide, resulting in a large number of mesopores and increased specific surface area as well as the reactive sites of vanadium sulfide, which contribute to the enhanced potassium ion storage performance. Consequently, the structure-modulated VS 2 –NF exhibits a high specific capacity of 507 mAh g −1 after 50 cycles at a current density of 100 mA g −1 . This approach provides a new routine for the modification of other transition metal disulfides as anode materials for PIBs.
研究领域:
材料科学
·
能源存储与转换
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高影响因子
NEW JOURNAL OF CHEMISTRY
·
2023
·Vol. 47
·期 23
·10973-10983
·
IF 3.3
Bicheng Hu,Yuhui Zhang,Jincheng Zhang,Jiazan Liu,Meng Lei,Chenxi Zhao,Qiujun Lu,Haiyan Wang,Fuyou Du,Shiying Zhang
In this work, a novel flower-shaped NV-g-C3N5@VS2 heterojunction was prepared by hydrothermal in situ synthesis using NV-g-C3N5 as the matrix and thioacetamide as the precursor. The prepared heterojunction showed a flower-like and layered structure, which widened the visible light absorption range and facilitated the usage of visible light. Under visible light irradiation, the NV-g-C3N5@VS2 heterojunction exhibited excellent photoelectrocatalytic nitrogen reduction activity with an ammonia yield of 49.26 μg h−1 mg−1 in an electrolyte solution saturated with N2. Moreover, the NV-g-C3N5@VS2 heterojunction achieved outstanding photocatalytic degradation activity. The photocatalytic degradation rate of Rhodamine (RhB) reached 95% in 35 min under visible light irradiation. More importantly, the catalyst displayed good reusability and stability after four cycling runs for the photodegradation of MB. The prepared catalyst showed excellent photocatalytic universality and was also applied to efficiently degrade organic pollutants such as methyl orange (MO) and methylene blue (MB). Therefore, solar light-driven photocatalytic and photoelectrocatalytic applications based on the NV-g-C3N5@VS2 heterojunction are expected to pave a new way for fertilizers, energy utilization, and environmental remediation.
研究领域:
材料科学
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环境科学
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DOI
高影响因子
ANALYTICAL BIOCHEMISTRY
·
2022
·
IF 3.191
Liang Tian,Jiyuan Zhang,Huiling Fan,Yanci Zhang,Zhanhui Wang,Olayinka Oderinde,Yihong Wang,Jiansheng Cui
A target-triggered and exonuclease-Ⅲ-assisted strand displacement, dual-recycling amplification reaction-based biosensor was developed for the rapid, ultrasensitive and accurate detection of kanamycin . The robust profiling platform was constructed using high conductive MXene/VS 2 for the electrode surface modification and high active CeCu 2 O 4 bimetallic nanoparticles as nanozyme to improve the sensitivity as well as the catalytic signal amplification of the biosensor. Using the dual supplementary recycling of primer DNA and hairpin DNA , the electrochemical platform could accurately detect kanamycin to as low as 0.6 pM from the range of 5 pM to 5 μM. By profiling five other antibiotics, this platform exhibited high specificity, enhanced repeatability and reproducibility. Based on these intrinsic characteristics and by utilizing milk and water samples, the as-designed biosensor offers a remarkable strategy for antibiotic detection due to its favorable analytical accuracy and reliability, thereby demonstrating potential application prospect for various antibiotic biosensing in food quality control, water contamination detection and biological safety analysis.
研究领域:
分析化学
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生物传感
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食品质量控制
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环境监测
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DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）