CERAMICS INTERNATIONAL
·
2023
·
IF 5.2
Jinpei Hei,Lei Cheng,Yifan Fu,Wenzhen Du,Yan Qian,Jing Li,Yanjun Yin,Nannan Wang,Liwei Su,Lianbang Wang
Rational composition and structural design of electrode substances are critical for lithium-ion batteries (LIBs) and supercapacitors (SCs) with good cycling steadiness and superb rate capability. Therefore, we report a novel electrode material consisting of V 2 O 3 quantum dots (QDs, about 6.64 nm) well-distributed on mesoporous carbon (MC) nanosheets . V 2 O 3 has high intrinsic conductivity and an open tunnel-like lattice structure, facilitating electron transfer and ion intercalation. The composite architectures can offer more electrochemical active sites, shorten ion/electron diffusion paths, and reduce volume swings during the charging/discharging process. The synergic effect of these merits significantly improves the reaction kinetics and prevents structural damage to the entire electrode. As a result, V 2 O 3 -QDs/MC nanosheets exhibit a large capacity/capacitance, excellent cycling steadiness, and high rate performance. For LIBs, V 2 O 3 -QDs/MC displays a great reversible capacity of 931 mAh g −1 at 0.2 A g −1 over 500 cycles and fast and stable lithium storage behaviors with 822 mAh g −1 at 2 A g −1 after 1000 cycles. For SCs, V 2 O 3 -QDs/MC manifests a considerable specific capacitance of 270 F g −1 at 1 A g −1 and satisfactory durability for at least 5000 cycles at 10 A g −1 . This work informs a good structure design for constructing advanced metal oxide-based nanostructured electrode materials.
研究领域:
材料科学
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能源存储与转换
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.6
Dongfei Sun,Minghui Xue,Huanle Niu,Ni Zhang,Junlin Yang,Jingxin Zhao,Bingang Xu
Aqueous zinc-ion batteries (AZIBs) represent promising candidates for large-scale energy storage owing to their inherent safety, low cost, and environmental friendliness. However, developing cathode materials that simultaneously achieve high capacity and long-term cycling stability remains a critical challenge. Herein, we report the rational design and synthesis of a series of Vanadium trioxide/Vanadium nitride (V 2 O 3 /VN) heterostructured composites through a controlled partial nitridation process using a vanadium-based metal–organic framework as a precursor. This strategy enables the in-situ formation of a conductive carbon matrix and the construction of an intimate heterointerface between V 2 O 3 and VN. A key innovation lies in the precise tuning of the V 2 O 3 -to-VN ratio, which governs the heterostructure morphology, defect concentration, and resulting electrochemical properties. The optimized V 2 O 3 /VN composite leverages the complementary attributes of its constituents: the structural stability and high theoretical capacity of V 2 O 3 , along with the superior electrical conductivity and electrochemical activity of VN. Synergistic effects at the heterointerface not only facilitate rapid electron and ion transport but also effectively accommodate volume variations during repeated cycling. Moreover, the presence of oxygen vacancies enhances Zn 2+ adsorption and diffusion kinetics. Therefore, the V 2 O 3 /VN cathode delivers a high specific capacity of 528 mAh g −1 at 0.1 A g −1 , and retains 244 mAh g −1 after 2000 cycles at 5 A g −1 , corresponding to a capacity fading rate of 0.025% per cycle. This work highlights the critical roles of component ratio optimization and interface engineering, providing a promising strategy for the development of advanced AZIB cathodes. The V₂O₃/VN heterostructure cathode leverages synergistic effects of rapid heterointerface charge transfer, carbon buffering, and oxygen vacancy-enhanced kinetics, delivering outstanding rate capability and cycling stability for aqueous zinc-ion batteries. Download: Download high-res image (144KB) Download: Download full-size image
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PubMed
高影响因子
Journal of Energy Storage
·
2026
·
IF 9.8
Ying Gao,Libo Wang,Ji'a Yang,Qixun Xia,Qianku Hu,Yukai Chang,Aiguo Zhou
MXenes are a promising cathode materials for aqueous zinc ion batteries (AZIBs) due to their layered structure, metallic conductivity, and hydrophilicity. Vanadium diselenide (VSe 2 ) is a typical transition metal dichalcogenide with good metallic properties and high conductivity. In this work, V 2 CT x was successfully synthesized by etching V 2 AlC with a hydrochloric acid solution of sodium fluoride, and surface selenization of V 2 CT x was accomplished using a high-temperature solid-state reaction. During the reaction process, some vanadium atoms on the surface of V 2 CT x were selenized and transformed into small VSe 2 nanosheets, while oxygen-containing groups form V 2 O 3 with vanadium atoms, and resulting in a V 2 CT x /VSe 2 /V 2 O 3 heterostructure material. The components of the nanohybrid were tuned by changing the mass ratio of selenium to V 2 CT x and the optimized VSe 2 –14 composite simultaneously achieved high specific capacitance (224.8 mAh/g after 200 cycles at 0.5 A g −1 ), excellent rate performance (126.2 mAh/g at 10 A g −1 ), and satisfactory cycle stability (141.3 mAh/g after 1300 cycles at 5 A g −1 ). This study provides a reference for the application of MXene-based materials in aqueous zinc ion batteries.
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高影响因子
NEW JOURNAL OF CHEMISTRY
·
2017
·Vol. 41
·期 13
·5380-5386
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IF 3.269
Xinping Liu,Renpin Liu,Lingxing Zeng,Xiaoxia Huang,Xi Chen,Cheng Zheng,Yuxian Xu,Qingrong Qian,Mingdeng Wei,Qinghua Chen
In the present work, a vanadium-trioxide/carbon-nanofiber composite (V2O3/CNF), integrated with different amounts of V2O3, was synthesized by a simple approach. After a simple combined electrospinning and carbonization process, V2O3 nanoparticles were successfully distributed through carbon fibers. Due to the synergistic effect between V2O3 and carbon, V2O3/CNF as an anode of lithium-ion batteries (LIBs) exhibits high reversible capacity and excellent long-term cycling stability. The content of V2O3 is of great importance to the electrochemical performance. The V2O3/CNF with the optimized content of V2O3 (57 wt%) shows a capacity of 544 mA h g−1 at a current density of 0.5 A g−1 after 500 cycles. More importantly, a capacity of 204 mA h g−1 at a high current density of 4 A g−1 can be retained after 1000 cycles.
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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纳米材料
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电池技术
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高影响因子
CHEMICAL ENGINEERING JOURNAL
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2023
·
IF 15.1
Rui Liu,Mu-cheng Xu,Jin-yan Yang
Sewage disposal technology in advanced oxidation processes (AOPs) should be enriched for providing more options for practical application. Herein, degradative and mechanistic investigation of heterogeneous V 2 O 3 -activated sodium percarbonate (SPC) process was implemented in the presence of oxalic acid (OA). The experimental results indicated a strong dependency of sulfamethoxazole (SMX) degradation on SPC dosage and a wide adaptability to the ambient pH in V 2 O 3 /SPC/OA system. Efficient removal of SMX in water reached 93.4 % within 10 min at the initial presence of 0.1 g/L V 2 O 3 and 2 mM SPC. Mechanistic experiments revealed that • OH played an indispensable role in SMX degradation, which partially dominated the degradation process and partially was the main precursor of CO 3 •- and O 2 •- . Moreover, except for the single electron transfer from low-valence state of vanadium (V) species to SPC, the intramolecular electron transfer process from –OOH ligand of V complex to hydrogen peroxide (H 2 O 2 ) also participated in the generation of • OH. Additionally, the introduction of OA could provide a complex, transient acidic and reductive condition for facilitating the SMX removal process. On the other hand, the addition of OA restricted the conversion of • OH to CO 3 •- and O 2 •- . Zeolite was employed to absorb the V species in the aqueous solution after the reaction and the residual vanadium concentrations were <2 mg/L. The existence of HPO 4 2- , CO 3 2– and humic acid exerted severe inhibition on the decontamination of SMX, and F - and NO 3 – exerted slight suppression, whereas the existence of Cl - and SO 4 2- did not show conspicuous impairment. This work filled the gap of decontamination performance of SMX in vanadium based heterogenous SPC system and deepened the understanding of the application of reductant.
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2026
·
IF 9.6
Qixian Huang,Tingting Lv,Guoqiang Yuan,Shu Jiang,Jie Liu,Qianli Ma,Huan Pang
A V 2 O 3 /Co/VC 0.7 ternary coupled network is constructed via ZIF-67 derivation. • Calcination temperature governs phase evolution, porosity, and kinetics. • Glucose concentration modulates solvation chemistry and electrode interfaces. Aqueous zinc-ion batteries (AZIBs) have great application potential due to their high safety and low cost. However, the vanadium-based cathode faces problems such as poor conductivity, unstable structure, and vanadium dissolution. In this paper, a ternary coupled network cathode composed of V 2 O 3 /Co/VC 0.7 (VZC-700) was constructed through a ZIF-67 derivative strategy. The metal Co enhances conductivity and catalyzes the formation of the carbon framework, while VC 0.7 acts as a physical barrier to effectively inhibit vanadium dissolution. V 2 O 3 transforms into a highly active layered zinc storage phase in situ during activation. On this basis, 5 M glucose was introduced as a green interface stabilizer. The optimized system achieved a first-cycle discharge specific capacity of 85.3 mAh g −1 at 10 A g −1 , and still maintained 111.65 mAh g −1 after 1000 cycles. Notably, even when subjected to a high current density of 20 A g −1 , as the current gradually decreases back to 5 A g −1 , the specific discharge capacity can recover to more than 99.2% of its initial value, highlighting its excellent rate reversibility. This work offers an effective pathway towards the design of advanced cathode materials for high-performance aqueous zinc-ion batteries. Download: Download high-res image (96KB) Download: Download full-size image
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高影响因子
Journal of Energy Storage
·
2023
·
IF 9.4
Lixin Li,Chao Wang,Chunhong Zhang,Xianqi Cao,Jianwei Bai,Ruiqi Li
With abundant resources and multiple electron transfer, V 2 O 3 is a potential anode material for sodium ion batteries (SIBs). However, dramatic volume changes and slow reaction kinetics during the charge/discharge process still limit its application. Herein, porous yolk-shell V 2 O 3 /nitrogen-doped carbon (V 2 O 3 /NC) spheres are produced by a simple solvothermal method combined with subsequent carbonization . In this hierarchical structure, ultra-fine nanoparticles as primary building unit facilitate ion/electron transport; unique yolk-shell structure relieves the volume strain improving the structure integrity; nitrogen-doped carbon enhances electrochemical conductivity; moreover, rational mesoporous structure accelerates electrolyte penetration and high specific surface area supplies abundant reaction sites. Based on the above merits, yolk-shell V 2 O 3 /NC spheres exhibit satisfactory sodium ion storage performance (129.5 mAh g −1 at 5.0 A g −1 after 12,000 ultra-long cycles). What's more, an assembled V 2 O 3 /NC//Na 3 V 2 (PO 4 ) 3 full cell displays outstanding cycle performance (46 mAh g −1 after 300 cycles at 0.2 A g −1 ), demonstrating its potential value for practical applications.
研究领域:
材料科学
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电化学
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DOI
高影响因子
JOURNAL OF POWER SOURCES
·
2024
·
IF 8.1
Cong Gao,Wei Sun,Weitong Zhang,Qiao Zhang,Shanyi Guang,Qianjin Chen
Open-framework crystal structured vanadates have been extensively investigated as cathode materials for aqueous zinc-ion batteries (ZIBs). However, the inherent challenges of poor electronic conductivity and structural instability compromise the rate capability and overall cycle life. Herein, we first successfully synthesized octahedral MIL-101(V) and prepared the Zn 3 (OH) 2 V 2 O 7 ·2H 2 O@C (ZVOH@C) composite by in-situ electrochemical conversion of MIL-101(V)-derived crystalline V 2 O 3 and carbon composite (V 2 O 3 @C). The ZVOH@C composite of open-framework crystal structured Zn 3 (OH) 2 V 2 O 7 ·2H 2 O and conductive carbon skeleton not only possesses more active sites, more stable crystal structure and higher electrical conductivity , but also provides faster Zn 2+ diffusion kinetics. As expected, the ZVOH@C composite electrode exhibits excellent capacity of 506.3 mAh/g at a current density of 1.0 A/g, exceptional rate performance (375.7 mAh/g at 20.0 A/g), and impressive long-term cycling stability, maintaining 314.5 mAh/g over 5000 cycles at 20.0 A/g. This study demonstrates a promising method for designing new cathode materials through in-situ electrochemical synthesis for ZIBs .
研究领域:
材料科学
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电化学
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高影响因子
MICROCHIMICA ACTA
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2026
·Vol. 193
·期 9
·631
·
IF 5.4
Li Jiejun,Wang Hui,Li Xinyi,Zhao Pengcheng,Fei Junjie,Xie Yixi
Amaranth (AM) is a widely used synthetic azo food colorant that poses severe toxicological risks upon excessive consumption, creating an urgent need for its ultra-sensitive detection. We report a high-performance electrochemical sensor based on the electrostatic co-aggregation of V 2 O 3 @NC and NHCS for the high-fidelity quantification of AM. A unique “capture-and-catalysis” synergistic mechanism governs this composite interface. Specifically, the highly porous NHCS framework provides exceptional capacity to capture and pre-concentrate target molecules while acting as a highly conductive “electronic bridge.” Subsequently, the abundant mixed-valence (V 3+ /V 5+ ) sites of the V 2 O 3 @NC serve as a robust electrocatalytic engine to drive the catalysis, significantly amplifying the AM oxidation signal. Combining electrochemical kinetic analysis with DFT calculations (including HOMO and MEP), we reveal that this electrocatalytic evolution proceeds via a directional 1 H + /2e − transfer mechanism. Under optimal conditions, the V 2 O 3 @NC/NHCS sensor exhibits a broad linear range (0.01–12 µM) and an extremely low LOD of 0.80 nM. Practical analysis of commercial beverages yielded recoveries of 95.0%–104.3%, with results perfectly matching orthogonal UV-Vis cross-validation. This work provides a robust platform for azo dye screening and profound insights into the rational design of “capture-and-catalysis” composite interfaces. Graphical abstract
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高影响因子
RENEWABLE ENERGY
·
2026
·
IF 9.1
Hanyuan Lv,Ruojiang Liu,Yi Fan,Ruolin Zhao,Jun Li,Feifan Hong,Haizhen Liu,Jin Guo,Zhiqiang Lan
Due to their large specific surface area and high porosity, porous carbon materials have emerged as a prominent research focus in the field of hydrogen storage. In this study, nanoporous carbon-coated V 2 O 3 nanorods (p-V 2 O 3 /C) were synthesized through high-temperature calcination under a gas mixture using a vanadium metal-organic framework (V-MOF) as a precursor, aimed at enhancing the hydrogen storage performance of MgH 2 . The incorporation of p-V 2 O 3 /C significantly reduced both the initial dehydrogenation temperature and the activation energy for dehydrogenation of MgH 2 to 192 °C and 88.6 kJ∙mol −1 , respectively. Notably, catalytic MgH 2 can desorb 5.35 wt% hydrogen even at a low temperature of 225 °C over a duration of 75 min, with an impressive capacity retention rate of 98.5% after 30 cycles of hydrogen absorption/release. The proposed catalytic mechanism indicates that the presence of metals such as V, VO, V 2 O 3 , and MgO in the composite system formed by p-V 2 O 3 /C with ball-milled MgH 2 serves to reduce the Mg-H bond strength, thereby facilitating easier dehydrogenation of MgH 2 . Additionally, incorporating MgO can stabilize the crystal interface of MgH 2 while impeding particle growth and enhancing its dehydrogenation process. In this work, the multiphase composite system based on p-V 2 O 3 /C has improved the kinetic performance for hydrogen storage in MgH 2 .
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高影响因子
Sustainable Energy & Fuels
·
2022
·Vol. 6
·期 8
·2020-2037
·
IF 6.813
Chang Lin Liu,Yang Liu,Xing Liu,Yun Gong
The complex [Me2NH2]V3O7 was synthesized solvothermally, and possessed a 2D [V3O7]− anionic layer with an interlayer [Me2NH2]+ cation. After cationic exchange and subsequent annealing, Al3+, Mn2+ or Zn2+-doped V2O3/C composites were obtained. Among them, oxygen-deficient Al3+-doped V2O3/C exhibits outstanding long-term cycling durability even with a high carbon content of 23.97 at%. The capacity retention is 94.7% after 1000 discharge/charge cycles at 5 A g−1, which is superior to V2O3/C, Mn2+ and Zn2+-doped V2O3/C composites. Furthermore, Al3+-doped V2O3/C with oxygen vacancies displays excellent rate performance with 90.3% capacity retention when the current density is increased 50-fold, and can deliver an average specific capacity of 340, 360, 365, 356, 343 and 307 mA h g−1 at 0.1, 0.2, 0.5, 1, 2 and 5 A g−1, respectively, and the capacity returns to 375 mA h g−1 at 0.1 A g−1. A series of ex situ characterizations revealed that Al3+-doped V2O3/C completely transformed into Al3+-doped Zn3(OH)2V2O7·2H2O during the 1st charge process. However, the capacity of the sample far exceeds the theoretical capacity of Zn3(OH)2V2O7·2H2O (224 mA h g−1), which is associated with the doping of Al3+ and its dominant surface-controlled the capacitive behavior. It is also expected that the transformation occurs in the inner accessible sites of the nonporous V2O3, which are provided by its rich oxygen vacancies. Although DFT calculations indicate that the doping of Al3+ into Zn3(OH)2V2O7·2H2O is energetically unfavorable, the present work provides a facile strategy for the preparation of Al3+-doped Zn3(OH)2V2O7·2H2O. Furthermore, the doping of Al3+ can change the host framework of Zn3(OH)2V2O7·2H2O, the positions, and the micro-environments of the inserted Zn2+, thus decreasing the binding energy and diffusion barrier of Zn2+.
研究领域:
材料科学
·
能源存储与转换
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DOI
高影响因子
CERAMICS INTERNATIONAL
·
2023
·
IF 5.2
Jialiang An,Mingyong Wang,Jintao Zhang,Yongzheng Jia,Baoyan Feng,Lei Dai,Shuqiang Jiao
Vanadium oxycarbide (i.e. VC x O 1-x ) solid solution was expected to be a novel and promising ceramic materials in energy storage, catalysis and the preparation of metallic vanadium. The controllable synthesis and structure analysis of VC x O 1-x solid solution are still rare. Here, VC x O 1-x solid solution with different C/O molar ratio are successfully synthesized through a convenient carbothermal reduction of V 2 O 3 . The influences of reaction temperature, time, and C/V 2 O 3 molar ratio in raw material are studied. It is found that carbothermal reduction must be carried out at higher temperature than 1500 °C in order to prepare single-phase VC x O 1-x solid solution. C/O molar ratio in VC x O 1-x solid solution can be well controlled by C/V 2 O 3 molar ratio in raw material. Based on structure examination, it is confirmed that VC x O 1-x is a continuous solid solution. Compared to VC, VC x O 1-x solid solution exhibits better thermal stability and oxidation resistance . The lattice constant of VC x O 1-x solid solution will increase with the increase of C content due to larger radius of C atom. Electronic properties of VC x O 1-x solid solution were evaluated by first-principles calculations and experiments. The results demonstrated that VC x O 1-x solid solution possesses high conductivity. The work is beneficial to controllable synthesis of VC x O 1-x solid solution and promising applications in energy storage, catalysis and the preparation of metallic vanadium.
研究领域:
材料科学
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陶瓷
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能源存储
·
催化
·
冶金
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DOI
高影响因子
危险品化学品经营许可证（带存储）