.png){kind=icon}
返回
High performance magnetic pseudocapacitors - Direct correlation between specific capacitance and diffusion coefficients
.png){kind=icon}
PRE
AI
DOI：10.1016/j.electacta.2021.139252.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
Till date, magnetic field dependent variations in specific capacitance have only been reported in simple binary oxides or alloys. Ternary spinels are often considered to be a composite of two or more monocationic entities, which allows them to deliver high specific capacitance. This paper deals with one such spinel i.e. NiCo2O4 (NCO), with 2-dimentional porous morphology, for obtaining highly responsive magnetic supercapacitors. Compared to the constituent oxides viz., NiO and Co3O4, NiCo2O4 shows nearly 100% higher response under magnetic field. Such results make this spinel furthermore useful for industrial applications. The results can be explained by the variation in dielectric constant, ESR, and ion diffusion as a function of applied magnetic fields. In such 2-dimentional porous oxides, a modified theoretical model has to be utilized to explain the magnetic field induced specific capacitance changes. There is a need to consider the impact of diffusion coefficient and additional convection term that is induced by the Fick's law. Another aspect, related with the carbon footprint for the materials, is determined using the life cycle assessment studies. This shows another advantage of using NiCo2O4 in energy storage devices. (C) 2021 Elsevier Ltd. All rights reserved.
Keyword:
2-D nanostructures
Supercapacitors
Magnetic
Diffusion coefficient
Life-cycle assessment
期刊
IF:
5.6
论文数:
4.1W
被引数:
12.6W
机构
引用论文
A Consideration of the Application of Koutecký-Levich Plots in the Diagnoses of Charge-Transfer Mechanisms at Rotated Disk Electrodes考虑在旋转圆盘电极的电荷转移机制的诊断中应用Koutecký-Levich图
PREAI
分享收藏Fast and reversible surface redox reaction in nanocrystalline vanadium nitride supercapacitors纳米晶氮化钒超级电容器中快速可逆的表面氧化还原反应.png)
ADVANCED MATERIALS
ADVANCED MATERIALSIF26.8
PREAI
分享收藏Direct growth of honeycomb-like NiCo2O4@Ni foam electrode for pouch-type high-performance asymmetric supercapacitor袋式高性能非对称超级电容器蜂窝状NiCo2O4 @ Ni泡沫电极的直接生长
PREAI
分享收藏Beiträge zur Chemie der Silicium‐Schwefel‐Verbindungen. 53. Die Struktur des 1,3‐Dimethyl‐1,1,3,3‐Tetraphenyldisilthians硅硫化合物化学研究. 53. 1,3-二甲基-1,1,3,3-四苯基二硅硫烷的结构
PREAI
分享收藏
查看更多内容