REACTIVE & FUNCTIONAL POLYMERS
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2020
·
IF 3.333
Fei Zhong,Yi He,Pingquan Wang,Chunlin Chen,Hao Yu,Hongjie Li,Jingyu Chen
Tannic acid (TA), as a biodegradable corrosion inhibitor , was used to modify the graphene (Gr) for improving the water-dispersibility of Gr. Further, the polyaniline (PANI) was enwrapped on the vanadium pentoxide (V 2 O 5 ) surface to increase its conductivity, thus promoting rapid formation of passivation film. Besides, the PANI enwrapped vanadium pentoxide (PV) was self-assembled with the Gr-TA through π-π interaction. Then, the waterborne epoxy coating (WEC) filled with the Gr-TA@PV hybrids were prepared, and the corrosion protection performance of the nanocomposites WEC were investigated through electrochemical and salt spray tests. The results confirmed that the outstanding corrosion protection performance of Gr-TA@PV/WEC derived from the superior barrier property of Gr nanosheets for corrosion agents and its self-healing effect. The self-healing process includes the formation of TA-Fe-TA complex and a passive Fe 2 O 3 / Fe 3 O 4 layer at the interface of coating/substrate.
研究领域:
材料科学
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腐蚀与防护
·
电化学
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DOI
高影响因子
HYDROMETALLURGY
·
2019
·
IF 3.465
Wenbo Lou,Yang Zhang,Shili Zheng,Ping Li,Ying Zhang,Yi Zhang,Bo Zhao,Zhefei Li,Wei Jin
China generates a large number of scrapped selective catalytic reduction (SCR) catalysts in the fossil fuel combustion plants every year. As a result, there is a giant quantity of 5 × 10 5 t scrapped V 2 O 5 -WO 3 /TiO 2 SCR catalyst annually worldwide, in which arsenic poisoning is a major cause of catalysts deactivation . In this study, a novel cleaner recovery process of alkaline-acid stepwise leaching was proposed for the high‑arsenic scrapped SCR catalysts to achieve excellent arsenic removal and structural reforming. It is found that arsenic can be completely removed from 1.92% to below the detection limit, and the surface area of regenerated catalysts is restored to 31 m 2 /g (similar to that of commercial catalysts). In the subsequent pickling and regeneration, Na + can be eliminated to obtain anatase-type TiO 2 for further activity recovery. Besides, valuable elements (W, V) have been successfully recycled by leaching the As-containing solid waste with ammonium salt. After replenishing active components, regenerated catalyst exhibits comparable activity with the commercial fresh catalyst, offering a promising method for scrapped catalyst recovery and further understanding of cleaner produces for waste management .
研究领域:
环境科学
·
化学工程
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DOI
高影响因子
MATERIALS LETTERS
·
2013
·
IF 2.224
Jintai Lin,Shuting Pang,Qianming Wang
We used ultrasonic-assisted microwave technique to synthesize V 2 O 5 /MgF 2 :Eu 3+ with characteristic red emissions. Phototocatalytic performances and emission properties were improved compared to the traditional route. Further investigation indicates that 9% V 2 O 5 (molar ratio V/Mg=9%) gave the best result for decomposing methylene blue (91% in 1 h).
研究领域:
材料科学
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化学工程
·
环境科学
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DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2017
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IF 3.359
Chuanlin Fan,Haitao Yang,Qingshan Zhu
Given the strong demands for high purity vanadium products dedicated for all-vanadium redox flow battery (VRFB), numerous preparation technologies have been developed. One of them, the chloride process that using vanadium oxytrichloride (VOCl 3 ) as purification intermediate presents distinct technical advantages. The intermediate is readily purified via distillation process to remove most of the impurities. However, the trace titanium tetrachloride (TiCl 4 ) is difficult to be removed, due to close saturated vapor pressures. In present work, based on thermodynamic calculation and analyses, we found that TiCl 4 reacts with water significant preferentially to form the corresponding oxide, compared with VOCl 3 . Then we proposed a novel method to remove trace TiCl 4 from VOCl 3 by selective hydrolysis – distillation. The related experiments were conducted and validated the feasibility of the innovative process. Vanadium pentoxide (V 2 O 5 ) with purity higher than 99.99 wt% (4N) was further prepared from the purified VOCl 3 by precipitation – calcination .
研究领域:
材料科学
·
化学工程
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产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2024
·
IF 5.8
Fang Xu,Shuai Xiong,Yan Yang,Hongwei Yang,Yong Ren,Fei Xie,Guixiang Liu,Bo Dai
In this work, LiZnTi ferrites doped with various V 2 O 5 additives were successfully prepared using hot-press sintering. The influences of V 2 O 5 dopant amount and holding time on phase composition, microstructure and gyromagnetic properties of the low-sintered LiZnTi ferrite were studied. Results showed that the grain growth behavior of the LiZnTi ferrites was closely interrelated with dopant amount and holding time as result of changes of critical driving force ( Δg c ). Moreover, the relative density of all the ferrite samples was very high ( ρ r >99 %). However, we found that the longer holding time (can reduce Δg c ), which is benefit for grain growth and improvement of saturation magnetization (4π M s ) of LiZnTi ferrites, resulted in the deterioration of ferromagnetic resonance (FMR) linewidth ( ΔH ) instead. Finally, due to synergistic effect of applied pressure and V 2 O 5 dopant, the LiZnTi ferrite ( x = 0.10) sintered at 900 °C for 10 mins possessed a small average grain size (GS ave. = 0.69 μm ), very high relative density ( ρ r = 99.35 % ) , high saturation magnetization (4π M s = 4193.2 G s) and a relatively low ferromagnetic resonance linewidth ( ΔH = 449.1 Oe).
研究领域:
材料科学
·
无机非金属材料
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磁性材料
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电子陶瓷
·
功能材料
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DOI
高影响因子
Journal of Energy Storage
·
2026
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IF 9.8
Yong Tang,Jianwei Zhao,Yi Li,Yujing Wang,Guangqiu Zhang,Yihang Zhao,Lirong Qin
In this study, we successfully synthesized europium (Eu)-doped V 2 O 5 nanosheets grown on carbon cloth via a hydrothermal method for use as a high-performance aqueous zinc ion batteries (AZIBs) cathode. The incorporation of Eu not only facilitates electrolyte diffusion but also mitigates electrode volume expansion during cycling, thereby significantly enhancing electrochemical stability. Remarkably, the optimized material demonstrates outstanding electrochemical properties, delivering a high specific capacity of 460 mAh/g at 1 A/g. Moreover, it exhibits excellent cycling stability, retaining 78 % of its initial capacitance after 5000 cycles at a high current density of 10 A/g, along with a low charge transfer resistance of 132 Ω. Furthermore, Eu doping substantially improves the Zn 2+ ion diffusion coefficient, elevating it to the order of 10 −8 cm 2 /s. And with the increase of temperature, the specific capacity of the battery continues to increase until 70 °C, when the maximum value is reached, and the specific capacitance increases by 15 %. These compelling results highlight the great potential of Eu-doped V 2 O 5 as an advanced energy storage material.
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DOI
高影响因子
CHEMICAL PHYSICS LETTERS
·
2026
·
IF 2.9
Qi Sun,Jie Chen,Hui Zhou,Juntong Huang,Wentao Qian,Huiyong Yang,Qifa Wan,Zhi Chen,Xinyuan Peng
Na + doping via a one-step hydrothermal method partially substitutes V 5+ sites in V 2 O 5 , inducing lattice contraction and a morphological transformation into nanoparticles. • The optimized Na 2/3 VO cathode exhibits a high reversible capacity of 428.33 mAh g −1 at 0.1 A g −1 and retains 82.4% of its initial capacity after 1500 cycles at 2 A g −1 . • Na + incorporation enhances structural stability, electrical conductivity, and Zn 2+ diffusion kinetics, providing a simple strategy for developing high-performance cathode materials for aqueous zinc-ion batteries. Aqueous zinc-ion batteries (AZIBs) have attracted considerable research interest in recent years due to their facile fabrication, environmental friendliness, inherent safety, and non-toxicity. Among various cathode candidates, V 2 O 5 stands out as a promising material owing to its layered structure that facilitates ion migration, high theoretical capacity, and multivalent redox capability. However, the practical application of V 2 O 5 is severely hindered by phase transitions during Zn 2+ intercalation/deintercalation, leading to poor cycling stability, along with inherently sluggish diffusion kinetics and low electronic conductivity. In response to these problems, Na + -doped V 2 O 5 was prepared via a hydrothermal method in this work. The results indicate that Na + doping effectively stabilized the crystal structure and enhanced the electrical conductivity of V 2 O 5 . Among the investigated compositions, the Na 0.328 V 2 O 5 electrode exhibited highly reversible Zn 2+ storage performance, delivering a specific capacity of 428.33 mAh g −1 at 0.1 A g −1 , along with excellent long-term cycling stability, retaining 82.4% of its initial capacity after 1500 cycles at 2 A g −1 . This work provides a promising strategy for developing stable, high-capacity cathode materials for advanced AZIBs. The as-prepared Na 2/3 VO achieves high specific capacity, superior rate capability and long cycling stability, and its reversible Zn 2+ storage mechanism is clearly revealed. Download: Download high-res image (203KB) Download: Download full-size image
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DOI
高影响因子
Nanomaterials
·
2026
·Vol. 16
·期 13
·791
·
IF 4.8
Yaning Chang,Chuanyu Jin,Shaoming Qiao,Xianghua Zhang,Yujing Zhu,Yongxu Du
Commercial V2O5powders typically exhibit a lamellar morphology with limited structural stability and sluggish electron/ion transport, which restricts their discharge performance in thermal batteries. This work aims to enhance the discharge performance of V2O5cathodes by constructing a robust spherical architecture via a scalable spray drying strategy combined with carbon modification. The as-prepared V2O5/C cathode delivers a high initial discharge voltage of 2.45 V, a specific capacity of 261.06 mAh g−1, and an energy density of 591.05 Wh kg−1at 0.1 A cm−2and 500 °C (cut-off voltage of 1.9 V), outperforming those of commercial V2O5cathodes. Pulse discharge tests and resistance evolution analyses further demonstrate enhanced voltage stability and reduced interfacial resistance. These improvements originate from the synergistic effect of the spherical architecture and conductive carbon network, which facilitates continuous electron/ion transport and reinforces structural integrity under high-temperature discharge conditions. This work provides a scalable design strategy for high-tap-density spherical V2O5cathodes and offers insight into the coupling among morphology, conductivity, and stability in cathode materials for thermal battery.
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DOI
PubMed
高影响因子
CERAMICS INTERNATIONAL
·
2025
·
IF 5.6
Runlong Zhai,Lianchen Zhang,Yaru Cheng,Feng Teng,Peng Hu,Haibo Fan,Jiaming Song,Yang Jiao
The utilization of visible light for photocatalytic degradation has always been a key objective in the field of photocatalysis. In this work, we designed and synthesized an efficient visible-light photocatalyst: V 2 O 5 /ZnIn 2 S 4 (VOZ) nanoflower composite structure. The flower-like ZnIn 2 S 4 , self-assembled from nanosheets, was prepared via a hydrothermal method, followed by the in-situ growth of V 2 O 5 nanoparticles on the nanosheets of ZnIn 2 S 4 through a chemical reaction approach. The results from XPS, PL, ESR and other characterization methods revealed that V 2 O 5 and ZnIn 2 S 4 formed an S-scheme heterojunction, enabling efficient carrier separation and migration while retaining the oxidation capability of V 2 O 5 and the reduction capability of ZnIn 2 S 4 . Under visible light irradiation for 80 min, the composite achieved a 97.4 % degradation for methylene blue (MB), outperforming pure V 2 O 5 and ZnIn 2 S 4 by factors of 1.53 and 1.92, respectively. Similarly, VOZ-20 achieved over 90 % degradation of both methyl orange (MO) and rhodamine B (RhB) within 80 min of visible-light irradiation. Additionally, ICP-OES analysis revealed that the solubility of V 2 O 5 in water was significantly reduced after forming a composite with ZnIn 2 S 4 , which helps prevent vanadium ion contamination in aqueous environments. This composite, with its strong redox activity and simple synthesis, is highly promising for visible-light photocatalytic applications.
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DOI
高影响因子
JOURNAL OF POWER SOURCES
·
2026
·
IF 8.4
Hongliang Li,Yong Cao,Jinxu Qiu,Ling Ding,Lezhen Hua,Qixiu Luo,Yu Zhao,Yanhua Cui
High-voltage single cells (beyond 3 V) with V 2 O 5 cathode play a critical role in high-power, high-energy, and miniaturized applications of thermal batteries. However, V 2 O 5 obtains a bad discharge performance with a 2.5 V voltage plateau due to its poor incompatibility with LiBr in the traditional electrolyte LiF‒LiCl‒LiBr. This study substitutes LiBr with Li 2 SO 4 to form a LiF‒LiCl‒Li 2 SO 4 electrolyte, displaying excellent thermal stability with V 2 O 5 at high temperatures. The resulting V 2 O 5 /LiF-LiCl-Li 2 SO 4 /LiB cell achieves an initial discharge voltage of 3.53 V and a capacity of 359.8 mAh g −1 , which is 1.89 times higher than that of the LiBr‒based cell (189.95 mAh g −1 ). The self-discharge behavior of the cells is also systematically investigated, which is crucial for improving the longevity and thermal design of thermal batteries. A three‒cell prototype thermal battery delivers an output voltage of 10.35 V, with a discharge time for 150 s at a current density of 100 mA cm −2 . These measurements provide direct evidence that the V 2 O 5 /LiF‒LiCl‒Li 2 SO 4 /LiB cell becomes a promising high‒energy, miniaturized platform for next‒generation thermal batteries, justifying continued investigation and development.
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DOI
高影响因子
Journal of Energy Storage
·
2026
·
IF 10.7
Kang Mei,Tengteng Gao,YiJiang Qu,Yanhuai Ding
Vanadium pentoxide (V 2 O 5 ), owing to its high theoretical capacity and layered structure, is considered a promising cathode material for aqueous zinc-ion batteries (AZIBs). However, its practical application is limited by sluggish Zn 2+ diffusion and structural instability during cycling. In this work, Ca 2+ and chitosan co-modified V 2 O 5 (VO-CS-Ca) was synthesized from commercial V 2 O 5 via an alcohol-assisted solvothermal method. XRD analysis revealed that the interlayer spacing of the (200) plane increased from 0.577 to 0.585 nm after co-modification. SEM and BET analyses confirmed the formation of a porous nanoflower-like architecture, with the specific surface area increasing from 14.99 m 2 g −1 for VO to 23.55 m 2 g −1 for VO-CS-Ca. Benefiting from the expanded interlayer spacing and optimized interfacial properties, the VO-CS-Ca electrode delivered an initial specific capacity of 310.5 mAh g −1 at 0.1 A g −1 , maintained 105 mAh g −1 after 1400 cycles at 1.0 A g −1 , and retained 92 mAh g −1 after 4500 cycles at 5.0 A g −1 . EIS and GITT results confirmed reduced charge-transfer resistance and enhanced Zn 2+ diffusion kinetics, while ex-situ XRD/XPS revealed reversible V 5+ /V 4+ redox behavior and structural evolution during Zn 2+ storage. These results indicate that Ca 2+ /chitosan co-modification effectively tailors the interlayer structure and surface/interface environment of V 2 O 5 , offering a feasible route for high-performance V 2 O 5 cathodes in AZIBs.
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DOI
高影响因子
ACS Omega
·
2020
·
IF 2.87
Jiequn Wu,Weiming Hua,Yinghong Yue,Zi Gao
Graphitic carbon nitride (g-C3N4)-supported V2O5 catalysts were prepared by the impregnation pyrolysis method, and their physicochemical properties were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared (FT-IR), Raman, X-ray photoelectron spectroscopy (XPS), UV–vis, TGA, N2 adsorption, and H2-TPR. These catalysts exhibit extremely high activity and selectivity in the aerobic oxidation of ethyl lactate to ethyl pyruvate. The excellent catalytic performance derives from the high surface-chemisorbed oxygen species. Low calcination temperature and interaction with g-C3N4 are conducive to increasing the surface-chemisorbed oxygen species of V2O5. The optimal catalyst 13V2O5/g-C3N4 gives 96.2% conversion of ethyl lactate with 85.6% selectivity toward ethyl pyruvate in 4 h at 130 °C and 1 atm oxygen, which is significantly superior to those of previously reported V-containing catalysts. This catalyst is also stable and reusable, and the ethyl pyruvate yield is reduced by less than 10% after four runs without any regeneration treatment.
研究领域:
催化化学
·
材料科学
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产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）