Functional Materials Letters
·
2019
·
IF 1.388
Jingwei Li,Shixi Zhao,Xia Wu,Lüqiang Yu,Enlai Zhao,Cewen Nan
A series of glass cathode materials x Li 2 O–50V 2 O 5 –(50− x )P 2 O 5 ( x = 2 0 , 25, 30, 35 and 40) have been synthesized by a simple melting–quenching method. 30Li 2 O–50V 2 O 5 –20P 2 O 5 glass (LVP30) shows the best cycling performance with a preferable capacity retention after 50 cycles. Then, we prepared a series of carbon-coated LVP30 glass-ceramic cathode materials by carbon coating and heat treatment. The carbon-coated LVP30 samples consist of the crystalline phase V 2 O 3 , VO 2 and Li 2 O–V 2 O 5 –P 2 O 5 glass. Among the carbon-coated LVP30 samples, LVP30-15C sample exhibits the best cycling and rate performance. It can retain a discharge capacity of 140 mAh ⋅ g − 1 after 100 cycles. This unique glass-ceramic structure can result in good conductivity and structural ductility.
研究领域:
材料科学
·
电化学
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高影响因子
APPLIED SURFACE SCIENCE
·
2026
·
IF 6.6
Hongliang Fu,Wenyao Xue,Shaocong Zhan,Jing Zhao,Yue Lian,Zhifeng Wang,Yongfeng Hu,Huaihao Zhang
Metal active sites are anchored via the coordination effects between V/Co and terephthalic acid. • Co-doping constructs highly active Co-O-V catalytic sites, enhancing reaction activity. • PTA-derived oxygen-containing carbon layer mitigates metal site dissolution, improving stability. Developing highly active and stable catalysts for alkaline electrolytic water oxidation remains a challenge. Here, we prepared highly active, stable and conductive scale like microsheet Co-V 2 O 5 @C through Co-doping and coordination effect between terephthalic acid (PTA) and metal (V/Co). Specifically, Co-doping into V 2 O 5 lattice constructs highly active V-O-Co sites, thus reducing the adsorption energy of oxygen-containing intermediates. Meanwhile, the scale like microsheet Co-V 2 O 5 @C expose abundant active sites, enhancing oxygen evolution efficiency. The coordination effect between PTA and V/Co enables the in-situ formation of carbon layer on V 2 O 5 surface after carbonization, which effectively alleviates the dissolution of active sites and enhances stability. For conductive design, the Co introduction into V 2 O 5 can promote intrinsic conductivity. Moreover, under high-temperature carbonization, PTA evolves into oxygen-containing carbon layer, which boosts Co-V 2 O 5 @C overall conductivity and reaction kinetics. Based on above advantages, Co-V 2 O 5 @C displays good electrochemical performance in oxygen evolution reaction (OER) (low overpotential: 290 mV@10 mA cm −2 ; long stability: 50 h; small charge transfer resistance: 11.7 Ω). Download: Download high-res image (226KB) Download: Download full-size image
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Journal of Materials Chemistry A
·
2022
·Vol. 10
·期 10
·5479-5487
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IF 14.511
Dong Chen,Haoliang Chen,Cheng-Feng Du,Lin Liu,Hongbo Geng,Hong Yu,Xianhong Rui
Although hydrated vanadate compounds have received extensive attention in aqueous batteries due to their high specific capacity, they are still impeded by the poor cycling resulting from host structure degradation and metal dendrite formation. Herein, we prepare multi-ion co-pre-intercalated hydrated vanadate microflowers (MxVO) with a robust crystal structure from vanadium slag waste, presenting highly reversible and ultrafast Zn2+ storage. Furthermore, using diethyl ether as the electrolyte additive, the cycling durability of zinc metal can be improved and the cells can work well at −20 °C. Impressively, the MxVO cathode realizes an unparalleled rate capability (203 mA h g−1 at 100 A g−1) and excellent cycling stability (317 mA h g−1 after 4000 cycles at 20 A g−1). Even when tested at −20 °C, it demonstrates a satisfactory zinc storage capability (e.g., the coin-type cell shows a discharge capacity of 120 mA h g−1 at 50 A g−1, and the pouch cell delivers ∼200 mA h g−1 at 1 A g−1). Hence, this work has exploited a new and efficient avenue for the exploration and utilization of solid waste toward high-performance aqueous batteries and other electrochemical applications.
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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高影响因子
JOURNAL OF POWER SOURCES
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2022
·
IF 9.794
Nuo Xu,Chenyi Yan,Wei He,Lin Xu,Zhouheng Jiang,Anyu Zheng,Huayu Wu,Ming Chen,Guowang Diao
As a new generation of electrode material , flexible electrode material can effectively broaden the application area and scope of energy storage devices. In this paper, a new vanadium pentoxide carbon fiber cloth (V 2 O 5 -CFC) is successful synthesized by means of electrospinning and high-temperature calcination. As a cathode material for aqueous zinc-ion batteries, V 2 O 5 -CFC possesses significantly increased specific capacity (132 mA h g −1 at 1 A g −1 ) and good cycling ability (154 mA h g −1 at 0.5 A g −1 after 1000 cycles). The volume effect in the charge/discharge process can be alleviated by using a composite fiber structure to avoid agglomeration of V 2 O 5 nanosheets . Most important, V 2 O 5 -CFC displays the flexible property and demonstrates its potential applications as a high-energy density and flexible energy storage device with good reversibility . Therefore, the design and synthesis strategy of flexible nanofibers film is prospective for applications in next-generation flexible aqueous zinc-ion batteries.
研究领域:
材料科学
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能源存储
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高影响因子
DALTON TRANSACTIONS
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2022
·Vol. 51
·期 48
·18473-18479
·
IF 4.569
Yan Zhou,Shanshan Lv,Han Li,Qikang Wu,Taiyu Chen,Shaohuan Liu,Wanying Li,Wenjuan Yang,Zheng Chen
The development and transformation of biomass-derived platform compounds is a sustainable way to deal with the fossil fuel crisis. 5-Hydroxymethylfurfural (HMF) can be reduced or oxidized to produce many high-value compounds; however, it is challenging to effectively produce 2,5-diformylfuran (DFF) due to overoxidation. In this work, a carbon-doped V2O5 (C–V2O5) material was obtained through pyrolysis of MIL-47(V) nanorods, a typical metal–organic framework material. The X-ray diffraction patterns and X-ray photoelectron spectra showed that the graphitized carbon species were incorporated in C–V2O5. High-efficiency HMF oxidation, high specific selectivity for DFF and excellent recycling could be achieved with the C–V2O5 catalyst. Fourier-transform infrared spectroscopy combined with density functional theory (DFT) calculation revealed that graphitized carbon weakens the VO bond and promotes the formation of oxygen vacancies in C–V2O5, thus improving the catalytic activity in the oxidation of furfuryl alcohols. The V4+ induced by oxygen vacancies will be oxidized by O2 to form V5+, so that the cycle can be realized. It exhibits remarkable selectivity in the oxidation of different alcohols produced from biomass based on the relatively constant active sites in C–V2O5.
研究领域:
材料科学
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催化
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化学工程
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可持续化学
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DOI
PubMed
高影响因子
ENVIRONMENTAL RESEARCH
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2025
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IF 7.7
Minhua Su,Shuwen Wang,Jiaqi Pan,Miaoling Chen,Congjie Shen,Yanrong Lai,Jiaxue Zhao,Jingran Yang,Diyun Chen,Ying Zhou
The extraction of uranium (U) from wastewater is of vital importance for ensuring the sustainable and safe development of nuclear energy, as it addresses both environmental protection and resource recycling. Vanadium (V) and its compounds are extensively employed in iron and steel manufacturing, and their utility in pollutant remediation further promotes the circular use of V-bearing materials. However, studies on utilizing inexpensive and readily available vanadium oxides (e.g., V 2 O 5 ) for the treatment of highly acidic uranium-containing wastewater remain scarce. This study investigated the effectiveness of V 2 O 5 in removing U(VI) and immobilizing it into crystalline uranyl vanadates, providing the first confirmation of the feasibility of using V 2 O 5 for uranium elimination and capture. The results indicate that V 2 O 5 exhibits excellent extraction capacity and selectivity for uranyl ions in contaminated solutions, achieving a U(VI) extraction rate exceeding 97% even under highly acidic conditions ( e.g. , pH = 2.0). Adsorption equilibrium was attained within 250 min, and kinetic studies combined with model fitting indicated that the process was governed by both intra-particle diffusion and chemical adsorption mechanisms. It was discovered that the captured U(VI) was ultimately incorporated into a stable crystalline phase, identified as uvanite (U 2 V 6 O 21 ·15H 2 O), through a coprecipitation pathway, revealing a novel crystallization mechanism. The overall immobilization process was attributed to the synergistic effects of chemical adsorption and coprecipitation. These findings support the development of vanadium oxide-based technologies for U(VI) purification and recovery from complex wastewater.
研究领域:
环境科学
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核化学
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废物管理
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材料科学
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污染修复
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DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2025
·
IF 8.3
Yaofeng Shi,Fengqin Tang,Lulu Liang,Jikui Zhu,Jianhui Jiang,Fuxi Bao,Chunhui Shi,Feng Yu,Libing Hu
Developing heterojunction electrocatalysts with built-in electric field (BIEF) as bifunctional electrocatalysts for oxygen evolution reaction (OER) and urea oxidation reaction (UOR) to achieve clean hydrogen production and urea-containing wastewater degradation remains a significant challenge. Herein, we have ingeniously coated V 2 O 5 on the surface of MnFe Prussian blue analogue (MnFePBA) nanospheres forming a heterojunction (V 2 O 5 /MnFePBA) via a simple hydrothermal method, and meanwhile BIEF formed within a heterojunction, which was characterized by series of characterizations. Benefiting from the BIEF influence, the V 2 O 5 /MnFePBA electrocatalyst required merely 260 mV of overpotential to realized a high current density (100 mA cm −2 ) in an electrolyte of 1.0 M KOH. What's more important, at the same high current density, V 2 O 5 /MnFePBA also delivered a potential of 1.36 V vs. RHE in a mixed electrolyte composed by 1.0 M KOH and 0.5 M urea. DFT calculations further demonstrated that BIEF could effectively adjust the electronic structure, induce the movement of the d-band center, and optimize intermediate adsorption, thereby decreasing the energy barrier favorable for the rate-determining step, which could accelerated the OER/UOR kinetics rates, thus V 2 O 5 /MnFePBA as a bifunctional electrocatalyst realized an efficient catalysis for OER and UOR. This work offers a promising approach to construct heterojunction with BIEF for enhancing both OER and UOR performance to produce green hydrogen and address urea-containing wastewater.
研究领域:
材料科学
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电化学
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高影响因子
JOURNAL OF POWER SOURCES
·
2025
·
IF 7.9
Tian Zhou,Zhangnan Xu,Mingyu Zhou,Zexin Zhou,Nianben Zheng,Zhiqiang Sun
Flow electrolysis is regarded as the most promising approach for producing high-quality and pure vanadium electrolytes. However, it faces challenges due to sluggish electrode reaction kinetics, resulting in high energy consumption and relatively low preparation efficiency. To address this issue, we propose a rapid electrode modification method that combines low-pressure plasma treatment with KMnO 4 etching. The catalyst MnO 2 , formed on carbon fiber, effectively enhances the electrode's electrocatalytic performance. The findings from the electrochemical analysis demonstrate that the modified electrode displays markedly enhanced electrocatalytic activity for the redox reaction of V 4+ /V 3+ . Flow electrolysis tests reveal that the electrolysis system with the modified electrode consumes 35.78 % less energy than the original graphite felt at a high current density of 300 mA/cm 2 , ten times higher than previously reported. Notably, the efficiency of the electrolyte prepared using the modified electrode in vanadium redox flow batteries (VRFB) achieves 98.13 % (coulombic efficiency), 86.88 % (volumetric efficiency), and 85.26 % (energy efficiency) at 100 mA/cm 2 , comparable to the electrolyte produced with the original electrode. This demonstrates the viability of employing the proposed graphite felt to efficiently fabricate V 3.5+ electrolytes with low energy consumption at high current densities.
研究领域:
电化学
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储能技术
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材料科学
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化学工程
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表面改性
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氧化还原液流电池
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高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
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2023
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IF 8.4
Xiangrui Bu,Kunfeng Ding,Qiang Wu,Yubin Yuan,Weihua Liu,Chuanyu Han,Xiaoli Wang,Xin Li
As an n-type metal oxide semiconductor (MOS), vanadium pentoxide (V 2 O 5 ) has shown great potential in gas sensing, especially for the detection of NO 2 . Herein, a highly sensitive NO 2 sensor based on 3D porous V 2 O 5 microrods (MRs) derived from metal organic frameworks (MOFs) was reported. The porous structure of vanadium-based MOF-derivatives (MIL-47) was tuned by the control of annealing temperature (300 °C–600 °C) in the pyrolysis process . The gas sensors with the MOF-derivatives are exposed to NO 2 at 150 ℃ for gas sensing tests. The sensor with MOF-derivatives annealed at 500 °C (MIL-47–500) showed the highest response (527 %) to 50 ppm NO 2 . It also showed excellent selectivity, low limit of detection, and good repeatability. The NO 2 -sensing behaviors of the MIL-47–500 sensor under ultraviolet (UV) illumination have also been investigated. Under UV illumination, the response of the MIL-47–500 sensor increased to 706 %. At 75 °C, the response of the MIL-47–500 sensor toward 50 ppm NO 2 was significantly improved from 57 % to 538 % under UV illumination. The response/recovery times were reduced from 102 s/300–48 s/178 s. The excellent performance was attributed to the unique porous structure of MIL-47–500 and the UV light excited charge carriers.
研究领域:
材料科学
·
传感器技术
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高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2023
·
IF 5.2
Xianhong Zheng,Jinhao Tang,Binbin Ding,Xinghua Hong,Qiaole Hu,Zhi Liu,Lihua Zou,Xiaoshuang Zhou,Peng Wang,Changlong Li,Wenqi Nie
Aqueous zinc-ion batteries (ZIBs) have emerged as a promising alternative to traditional lithium-ion batteries due to their high safety, environmental friendliness , and cost-effectiveness, as well as their high theoretical capacity. However, developing freestanding cathodes with excellent electrochemical performance , including high specific capacity and energy density , still faces significant challenges. Herein, we present a freestanding, flexible, and interfused V 2 O 5 nanowire/reduced graphene oxide (rGO) composite fiber nonwoven fabric for the cathode of aqueous ZIBs via a novel wet-spinning and wet-fusing assembly strategy. The resulting V 2 O 5 nanowire/rGO composite fiber nonwoven fabric can be directly utilized as the cathode for aqueous ZIBs, demonstrating outstanding electrochemical performance, including high specific capacity (402.5 mAh g −1 at 0.1 A g −1 ), energy density (286.3 Wh kg −1 at 71.4 W kg −1 ), excellent rate capability, and long cycling life (4000 cycles). This study provides new insights into the development of high-performance flexible freestanding electrode materials for ZIBs
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高影响因子
Carbon Neutralization
·
2025
·Vol. 4
·期 6
·e70082
·
IF 12
Xiaoteng Yan,Junjie Qi,Honghai Wang,Zhiying Wang,Chunli Li,Wenchao Peng,Jiapeng Liu
Aqueous zinc-ion batteries (AZIBs) have gained great attention due to their nontoxicity, low-cost, and high theoretical capacity. However, the scarcity of suitable cathode materials with excellent performance limits the practical application of AZIBs. Herein, we develop a conducting polymer (polyaniline) and divalent ions (Ca 2+ ) co-intercalated method to synergistically regulate the property of V 2 O 5 to enhance Zn 2+ storage performance. The synergistic effect of co-insertion Ca 2+ and polyaniline (PANI) not only enlarges the interlayer spacing but also regulates multiple oxidation states of vanadium, which dramatically improves the conductivity, diffusion kinetics, and structural stability of host V 2 O 5 . Consequently, the resultant Ca/PANI/V 2 O 5 •nH 2 O (CPVO) as AZIBs cathodes exhibits extraordinary specific capacity of 512 mAh g –1 (0.5 A g –1 ) and cycling stability with an outstanding coulombic efficiency of around 100% after 2000 cycles (25 A g –1 ). Moreover, the Zn 2+ storage mechanism is elaborated by combining comprehensive characterizations and DFT calculations.
研究领域:
材料科学
·
储能
·
电化学
·
电池技术
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产品关联
DOI
高影响因子
Journal of Energy Chemistry
·
2024
·
IF 14
Rongkun Sun,Dan Luo,Hongyang Zhou,Zhaolong Zhang,Yinuo Gao,Siyuan Ma,Zhi Li,Xiaohong Kang
Aqueous zinc-ion batteries (AZIBs) are gaining attention owing to their affordability, high safety, and high energy density, making them a promising solution for large-scale energy storage. However, their performance is hampered by the instability of both the anode-electrolyte interface and the cathode-electrolyte interface. The use of sodium gluconate (SG), an organic sodium salt with multiple hydroxyl groups, as an electrolyte additive is suggested. Experimental and theoretical analyses demonstrate that Na + from SG can intercalate and deintercalate within the associated V 2 O 5 cathode during in situ electrochemical processes. This action supports the layered structure of V 2 O 5 , prevents structural collapse and phase transitions, and enhances Zn 2+ diffusion kinetics. Additionally, the gluconate anion disrupts the original Zn 2+ solvation structure, mitigates water-induced side reactions, and suppresses Zn dendrite growth. The synchronous regulation of both the V 2 O 5 cathode and Zn anode by the SG additive leads to considerable performance improvements. Zn||Zn symmetric batteries demonstrate a cycle life exceeding 2800 h at 0.5 mA cm −2 and 1 mAh cm −2 . In Zn||V 2 O 5 full batteries, a high specific capacity of 288.92 mAh g −1 and capacity retention of 82.29% are maintained over 1000 cycles at a current density of 2 A g −1 . This multifunctional additive strategy offers a new pathway for the practical application of AZIBs.
研究领域:
电化学储能
·
材料科学
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能源化学
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电池技术
·
界面工程
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DOI
高影响因子
危险品化学品经营许可证（带存储）