通过时间间隔从微球过渡到微棒：塑造用于储能装置的钴钒氧化物

IF 5.3 2区化学 Q2 CHEMISTRY, PHYSICAL

Journal of Molecular Liquids Pub Date : 2025-04-05 DOI:10.1016/j.molliq.2025.127513

Sachin S. Pujari , R.A. Kadam , T.V.M. Sreekanth , S.L. Kadam , A.M. Teli , Abdullah A. Al-Kahtani , D. Radhalayam , D.K Shin , Manesh A. Yewale

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引用次数: 0

摘要

在没有电惰性粘合剂的情况下，考虑到电荷的轻松转移和控制储能装置中电极的物理化学性质，开发自支撑电极材料是必不可少的。本研究的重点是水热合成具有定制性能的钴钒氧化物（Co3V2O8）微结构，用于超级电容器的应用。由于反应时间的变化，制备的Co3V2O8微观结构发生了从微球到微棒的形态变化。合成的CVO-AFU-7 h电极材料在3 mA/cm2扫描速率下显示出318 F/g的超电容性能。此外，固态混合超级电容器（SSHSc）器件显示出卓越的能量存储能力，在169.69 W/kg的功率密度下提供3.21 Wh/kg的高能量密度。SSHSc器件表现出持久的可循环性，在10,000次循环后仍保持其初始容量的79%。此外，它的实际效用通过同时为三个led供电来证明，表明工业应用的强大潜力。

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Transitioning from microballs to microrods via time interval: Shaping cobalt vanadium oxide for use in energy storage devices

Developing self-supported electrode material in the absence of electro-inert binders considering the effortless transfer of charges and manipulating physicochemical properties of electrodes in energy storage devices is essential. This investigation focuses on the facile hydrothermal synthesis of a cobalt vanadium oxide (Co₃V₂O₈) microstructure with tailored properties for supercapacitor application. Morphological change from microballs to microrods is detected in prepared Co₃V₂O₈ microstructure owing to reaction time variation. The synthesized CVO-AFU-7 h electrode material displays superior supercapacitive performance of 318 F/g at 3 mA/cm² scan rate. Furthermore, the solid-state hybrid supercapacitor (SSHSc) device revealed superior energy storage capabilities, delivering a high energy density of 3.21 Wh/kg at a power density of 169.69 W/kg. The SSHSc device exhibits long lasting cyclability, retaining 79 % of its initial capacity after 10,000 cycles. Moreover, its practical utility is demonstrated by powering three LEDs simultaneously, indicating strong potential for industrial applications.

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来源期刊

Journal of Molecular Liquids 化学-物理：原子、分子和化学物理

CiteScore

10.30

自引率

16.70%

发文量

2597

审稿时长

78 days

期刊介绍： The journal includes papers in the following areas: – Simple organic liquids and mixtures – Ionic liquids – Surfactant solutions (including micelles and vesicles) and liquid interfaces – Colloidal solutions and nanoparticles – Thermotropic and lyotropic liquid crystals – Ferrofluids – Water, aqueous solutions and other hydrogen-bonded liquids – Lubricants, polymer solutions and melts – Molten metals and salts – Phase transitions and critical phenomena in liquids and confined fluids – Self assembly in complex liquids.– Biomolecules in solution The emphasis is on the molecular (or microscopic) understanding of particular liquids or liquid systems, especially concerning structure, dynamics and intermolecular forces. The experimental techniques used may include: – Conventional spectroscopy (mid-IR and far-IR, Raman, NMR, etc.) – Non-linear optics and time resolved spectroscopy (psec, fsec, asec, ISRS, etc.) – Light scattering (Rayleigh, Brillouin, PCS, etc.) – Dielectric relaxation – X-ray and neutron scattering and diffraction. Experimental studies, computer simulations (MD or MC) and analytical theory will be considered for publication; papers just reporting experimental results that do not contribute to the understanding of the fundamentals of molecular and ionic liquids will not be accepted. Only papers of a non-routine nature and advancing the field will be considered for publication.