JOURNAL OF ELECTROANALYTICAL CHEMISTRY
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2025
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IF 4.1
Heng-xue Zhou,Yi Long,Qiu-fang Zhong,Jia-liang Wang,Bo Liang,Ying-bang Yao,Daniel Q. Tan,Sheng-guo Lu,Tao Tao
A novel V 2 O 3 @C/S composite cathode material is prepared via a combined strategy consisting of solution synthesis, hydrothermal treatment and high-temperature carbonization, and all solid-state lithium‑sulfur (Li S) batteries with high-performance are constructed. The obtained V 2 O 3 @C host material demonstrates excellent properties, including good structural stability, superior electrical conductivity, strong interfacial compatibility, notable sulfur adsorption and high catalytic capabilities. At a current rate of 0.1C, the V 2 O 3 @C/S cathode delivers an initial capacity of 1125 mAh g −1 with a capacity retention of 67.1 % after 150 cycles in solid-state cells at the room temperature. At 0.5C, the capacity retention still remains 45.5 % after 250 cycles. Cyclic voltammetry, electrochemical impedance spectroscopy, and Tafel analysis further demonstrate the enhanced reaction kinetics and reduced charge-transfer resistance. This work provides a promising strategy for designing the high-performance cathode materials of solid-state Li S batteries.
研究领域:
材料科学
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储能
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电化学
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纳米材料
·
电池技术
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产品关联
DOI
高影响因子
CARBON
·
2024
·
IF 10.5
Anqi Ni,Zhiqiang Xiong,Yingna Zhang,Xiao Jiang,Xin Li,Chongbo Liu,Xiaojun Zeng
Over the recent years, carbon materials derived from biomass have gained extensive interest owing to their structural diversity and high porosity. In this work, butterfly wings (BWs) with concave-cavity-array structure and vanadium-containing metal-organic framework (V-MOF) are selected as precursors, and a rail-like heterostructure composed of V 2 O 3 @C/BWs derived carbon (BWC) composite is constructed by a facile solvothermal reaction and one-step carbonization procedure. The unique concave-cavity-array structure of BWs is conducive to multiple reflections and scattering of electromagnetic waves (EMWs). Moreover, the V-MOF derived V 2 O 3 @C microspheres are uniformly dispersed on the surface and concave cavities of BWC, which generates abundant heterogeneous interfaces and boosts the interfacial polarization. The results show that the minimum reflection loss of V 2 O 3 @C/BWC composites reaches −59.3 dB, and the effective absorption bandwidth is up to 6.56 GHz, which covers the entire Ku-band. In addition, under the incidence angle of 15°, the maximum radar cross section reduction value of V 2 O 3 @C/BWC materials is found to be 43 dB m 2 . Overall, this work provides a new approach to develop carbon-based EMW absorbers with strong and ultra-wideband absorption.
研究领域:
材料科学
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电磁学
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产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2022
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IF 16.744
Xiuting Wu,Caishuo Yin,Mengfan Zhang,Yaqian Xie,Jingjing Hu,Ruilai Long,Xianming Wu,Xianwen Wu
The materials driven by metal-organic frameworks (abbreviated MOFs) and their derivatives can prevent self-aggregation and inherit their original morphology. The adjustable porosity features of pristine MOFs can achieve an outstanding electrochemical performance. Herein, we report a novel cathode material of V 2 O 3 /V 3 O 5 /Zn 2 VO 4 @NC composite (abbreviated ZnVO-800) with hierarchical structure and heterojunction derived from zeolitic imidazolate framework-8 (abbreviated ZIF-8) by self-sacrificed route. The ZnVO-800 cathode undergoes two- step reactions in relation with H + and Zn 2+ synergistic insertion/extraction and exhibits rapid Zn 2+ diffusion kinetics and high electrochemical activity after activation. Specifically, the reversible capacity of the activated electrode reaches up to 314.0 mAh·g −1 at the initial discharge of 0.5A·g −1 as it applies to aqueous zinc ion batteries (abbreviated AZIBs). Remarkably, it exhibits a high reversible capacity of 100.1 mAh·g −1 and an excellent cycleability with a capacity retention of 90.8 % even after 3000 cycles. The electrochemical mechanism reveals that the ZnVO-800 with poor electrochemical characteristics is transformed into Zn x V 2 O 5 ·nH 2 O with high electrochemical activity by in-situ electrochemical activation process. Subsequently, Zn 2+ /H + is reversibly inserted/extracted in the cathode material. The heterojunction with hierarchical structure can not only increase the contact interface between electrolyte and cathode materials, but also shorten the ions diffusion path, which is conducive to rapid dynamics and long-term cycleability.
研究领域:
材料科学
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电化学
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能源存储
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2020
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IF 4.65
Mingwei Hu,Jin Huang,Qizhong Li,Rong Tu,Song Zhang,Meijun Yang,Haiwen Li,Takashi Goto,Lianmeng Zhang
Earth-abundant and low-cost hydrogen evolution reaction (HER) electrocatalysts represent a future direction for achieving sustainable hydrogen energy production. Low-cost amorphous molybdenum sulfides (MoS x ), with their highly active HER activity, have emerged as outstanding catalysts for electrochemical hydrogen production. Herein, we report the development of a synergetic amorphous MoS x hybrid catalysts on V 2 O 3 with optimized HER activity of MoS x . Our synthetic and structural characterization shows that MoS x distributes on V 2 O 3 uniformly. HER-inert V 2 O 3 provides a highly electrochemically active surface area for HER and promotes electron transport . The obtained hybrid MoS x /V 2 O 3 /CC catalyst exhibits a low overpotential of 146 mV at 10 mA cm −2 toward HER under acidic conditions, which is comparable with the current advanced catalysts, and high stability with no significant changes over 10 h of electrolysis. The density functional theory calculations also demonstrate that the interface of V 2 O 3 and MoS x helps to improve the conductivity.
研究领域:
材料科学
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能源科学
✓ 已验证
DOI
高影响因子
IONICS
·
2025
·Vol. 31
·期 9
·8961-8969
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IF 2.6
Ning Liping,Sui Zhixing,Tang Anping,Liang Ziqin,Chen Hezhang,Song Haishen,Xu Guorong
Conversion reactions have made LiF-metal oxide (MO) composites with attractive specific capacities compelling candidates for the next generation of lithium-ion battery cathode materials. However, it is necessary for the high charge voltage (> 4.5 V) to drive the redox reaction of MOs and break a strong ionic bond between Li + and F − upon charge. It is a crucial way for decrease in the charge voltage to lower the activation energy barrier of the redox process between LiF and MOs. A novel conversion cathode LiF-V 2 O 3 system is proposed in this study. Unlike most of the previously reported LiF-MOs systems, the LiF-V 2 O 3 system can work at the lower charge cut off voltage of 4.3 V. It delivers a reversible specific capacity of 197 mAh g −1 at C/20 rate in the voltage range of 2–4.3 V. Cyclic voltammetry data suggest a dominant contribution of pseudocapacitance effect in the conversion reaction of the LiF-V 2 O 3 sample.
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产品关联
DOI
高影响因子
Journal of Energy Chemistry
·
2020
·
IF 7.216
Jing Zhou,Hansheng Xiao,Wei Weng,Dong Gu,Wei Xiao
Implementation of non-precious electrocatalysts is key-enabling for water electrolysis to relieve challenges in energy and environmental sustainability. Self-supporting Ni-V 2 O 3 electrodes consisting of nanostrip-like V 2 O 3 perpendicularly anchored on Ni meshes are herein constructed via the electrochemical reduction of soluble NaVO 3 in molten salts for enhanced electrocatalytic hydrogen evolution. Such a special configuration in morphology and composition creates a well confined interface between Ni and V 2 O 3 . Experimental and Density-Functional-Theory results confirm that the synergy between Ni and V 2 O 3 accelerates the dissociation of H 2 O for forming hydrogen intermediates and enhances the combination of H* for generating H 2 .
研究领域:
材料科学
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能源化学
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2021
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IF 7.312
Zhonghua Zhao,Mingyong Wang,Yunfei Chen,Yongzheng Jia,Jialiang An,Shuqiang Jiao
Vanadium oxide s, such as V 2 O 5 and V 2 O 3 , are important metallurgy products and mainly used to prepare V-based alloys for steelmaking. At present, vanadium oxide s are mainly produced by complex sodium salt roasting process. Serious environmental pollution, such as emission of ammonia nitrogen wastewater and NH 3 , are restrictive problems. Here, a clean and sustainable method for V 2 O 3 preparation is proposed by one-step molten salt electrochemical reduction of soluble NaVO 3 , i.e. an indispensable intermediate in traditional V metallurgy. The pollution issues are well solved. The theoretical decomposition voltages of different vanadate to various low-valence vanadium oxides were calculated. NaVO 3 with a solubility of 14.7 wt% is the most suitable vanadate for the direct preparation of V 2 O 3 by molten salt electrolysis. The effects of cathode structure, NaVO 3 content, electrolysis temperature and voltage on current efficiency and electricity consumption were systematically studied. High-purity V 2 O 3 with uniform particle distribution is obtained and the lowest electricity consumption is only 2.86 kWhkg −1 . V 2 O 3 is mainly produced by one-step electrochemical reduction of soluble NaVO 3 through two-electron transfer process. The economic evaluation for ferrovanadium production is preliminarily carried out. Compared with the traditional process, the cost for ferrovanadium production is lower by the aluminothermic reduction of V 2 O 3 which is prepared by clean one-step electrolysis of soluble NaVO 3 .
研究领域:
冶金工程
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材料科学
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环境科学
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电化学
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资源利用
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2023
·
IF 9.5
Yu Rao,Kongjun Zhu,Guoliang Zhang,Feng Dang,Jiatao Chen,Penghua Liang,Zhihan Kong,Jun Guo,Hongjuan Zheng,Jie Zhang,Kang Yan,Jinsong Liu,Jing Wang
Molybdenum sulfide has been widely investigated as a prospective anode material for Li+/Na+ storage because of its unique layered structure and high theoretical capacity. However, the enormous volume variation and poor conductivity limit the development of molybdenum sulfide. The rational design of a heterogeneous interface is of great importance to improve the structure stability and electrical conductivity of electrode materials. Herein, a high-temperature mixing method is implemented in the hydrothermal process to synthesize the hybrid structure of MoS2/V2O3@carbon-graphene (MoS2/V2O3@C-rGO). The MoS2/V2O3@C-rGO composites exhibit superior Li+/Na+ storage performance due to the construction of the interface between the MoS2 and V2O3 components and the introduction of carbon materials, delivering a prominent reversible capacity of 564 mAh g–1 at 1 A g–1 after 600 cycles for lithium-ion batteries and 376.3 mAh g–1 at 1 A g–1 after 450 cycles for sodium-ion batteries. Theoretical calculations confirm that the construction of the interface between the MoS2 and V2O3 components can accelerate the reaction kinetics and enhance the charge-ionic transport of molybdenum sulfide. The results illustrate that interfacial engineering may be an effective guide to obtain high-performance electrode materials for Li+/Na+ storage.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
ELECTROCHIMICA ACTA
·
2026
·
IF 5.8
Weiya Tian,Lixia Guo,Jiaju Lu,Xiaoling Wang,Jiabin Ding,Junxian Hu
Corncob-shaped Bi/V 2 O 3 @NC composite was designed and constructed. • Bi/V 2 O 3 @NC composite delivers 266.9 mAh g −1 at 1 A g −1 , and high rate performance. • Bi/V 2 O 3 heterostructure and carbon shell ease volume expansion for stable cycling. • Phase transition mechanism of Bi/V 2 O 3 @NC composite during cycling was investigated. Bismuth (Bi) is considered a promising anode candidate for alkali metal-ion batteries owing to its abundant natural reserves, outstanding theoretical capacity, intrinsic conductivity, and moderate charge/discharge potential. However, during cycling, it suffers from pulverization and agglomeration, leading to severe volume expansion, structural collapse, and rapid capacity decay. In addition, its sluggish alloying reaction kinetics limits the rate capability and practical applications. To address these challenges, a corncob-shaped Bi/V 2 O 3 @NC composite is designed, in which Bi and V 2 O 3 nanoparticles are uniformly encapsulated within a nitrogen-doped carbon nanoshell. This hierarchical architecture shortens ion/electron transport pathways and provides abundant electrochemically active sites. The Bi/V 2 O 3 heterointerface mitigates the volume expansion of Bi during cycling while enhancing reversible capacity, as evidenced by the stable cycling performance. The nitrogen-doped carbon coating suppresses volume deformation, enhances electrode conductivity, and facilitates ion diffusion, contributing to improved structural stability and electrochemical kinetics. Benefiting from these structural features, the Bi/V 2 O 3 @NC delivers a reversible capacity of 206.5 mAh g −1 at 10 A g −1 and retains 233.4 mAh g −1 after 3500 cycles at 5 A g −1 . Electrochemical analysis and ex situ characterization reveal that this performance originates from the synergistic effect of surface-capacitive and diffusion-controlled processes, with a high capacitive contribution (93.8% at 1.2 mV s −1 ) enabling fast kinetics. The sodium storage mechanism involves reversible alloying (Bi ↔ NaBi ↔ Na 3 Bi) and intercalation (V 2 O 3 ↔ Na x V 2 O 3 ) reactions, as confirmed by ex situ XRD. This work provides a design strategy for metal/metal oxide heterostructures and offers insights into the electrochemical mechanisms of alloy-based anodes for sodium-ion batteries. Download: Download high-res image (301KB) Download: Download full-size image
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DOI
高影响因子
JOURNAL OF SOLID STATE CHEMISTRY
·
2022
·
IF 3.656
Tao Zhang,Qinggang Li
NH 3 produced by the thermolysis of NH 4 VO 3 is a good reductant for the fabrication of low valence vanadium oxides . In this study, the thermodynamics of V–O and V–O–NH 3 was analyzed to provide a theoretical basis for the preparation of V 2 O 3 using NH 4 VO 3 . Based on this analysis, the thermolysis processes of NH 4 VO 3 under different conditions (air, nitrogen and sealed atmosphere) were investigated. Compared with the air and nitrogen conditions, the sealed condition fully utilises NH 3 escaping from NH 4 VO 3 and is more suitable for the low-cost fabrication of V 2 O 3. First, the only product of thermolysis under the dynamic air condition was V 2 O 5 due to the high oxygen partial pressure. Second, the fabrication of VO 2 under the static air and nitrogen conditions was feasible with a high temperature (＞625 °C). The formation of VO 2 in these conditions is explained by the instability of V 2 O 5 , which decomposed into VO 2 at a temperature higher than 625 °C. Finally, under the sealed condition at 700 °C, pure V 2 O 3 was obtained and NH 4 VO 3 underwent the following phase transition: NH 4 VO 3 → (NH 4 ) 4 (V 6 O 16 ) → V 4 O 7 → V 3 O 5 →V 2 O 3 .
研究领域:
材料科学
·
化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.6
Jinghao Zhao,Baoqin Hao,Wei Tan,Jing Chen,Yan Meng,Lin Han,Xinhao Qu,Xin Li
Constructing vanadium oxide/metal selenide heterostructure is a promising strategy to enhance the reaction kinetics and structural stability for high-performance sodium-ion batteries (SIBs) anode. However, achieving a uniform and robust heterointerface remains challenging due to the multivalent state transformation of the V and the thermodynamic stability difference between V O and V Se bonds. Herein, we design and synthesize the V 2 O 3 /Fe 3 Se 4 @C heterostructure via a facile liquid-phase reaction followed by a seleniziation method. The unique coordination environment in a ferric vanadate and the reduction potentials difference between Fe and V cations promote the formation of a well-defined heterointerface. Density functional theory calculations confirm the formation of a built-in electric field at the heterointerface, thereby accelerating the reaction kinetics. The electric field originates from the orbital hybridization, which promotes the formation of a robust Se V O bonding configuration. Meanwhile, the carbon coating maintains structural integrity by suppressing volume expansion during cycling. These synergistic effects effectively enhance the overall structural stability of the material. Thus, the prepared V 2 O 3 /Fe 3 Se 4 @C anode exhibits exceptional electrochemical performance, delivering a high specific capacity of 378.2 mAh g −1 at 0.5 A g −1 and 308.9 mAh g −1 at 8 A g −1 , and retaining a specific capacity of 313.8 mAh g −1 after 2500 cycles at 5 A g −1 . This work establishes a new electron orbital modulation strategy for exploring high-performance vanadium oxide-based anode materials for SIBs.
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
·
2021
·Vol. 168
·期 11
·113505
·
IF 4.316
Yapeng Kong,Yu Xiao,Xuemin Liang,Yuran Chen,Liqiang Wang
The availability of casting Ni–Fe alloy as inert anode for direct electro-reduction of V2O3 in molten Na3AlF6-K3AlF6-AlF3 was investigated. The electrochemical oxidation behavior of anode as well as microstructural evolutions of formed oxide scale were systematically studied. The electrochemical characterization and reaction mechanism of the cathode oxide were also investigated to evaluate the influence of alloy anode on cathodic reduction process. The in situ formed three-layered oxide scale is compact and coherent, which is composed of an outermost Fe2O3 + FeAl2O4 skin layer, a Fe2O3 middle layer and a FeAl2O4 inner layer. The skin layer has a continuous, smooth structure and shows electrochemical activity. The Fe2O3 layer with a compact structure prevents inward diffusion of electrolyte and outward migration of metal cations. The innermost FeAl2O4 layer shows a loose structure and functions as a buffer layer to improve the peeling resistance of oxide scale. With the continuous extension of polarization time, the inner FeAl2O4 layer is slowly oxidized and becomes thinner, simultaneously, the dense Fe2O3 layer becomes thicker. Ultimately, metal vanadium product with fine rod-like particles can be obtained and the oxygen content in the metal vanadium is below 0.3 mass% within electrolyzing time of 2 h. The corresponding current efficiency is around 63%.
研究领域:
冶金学
·
材料科学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）