Zinc Ferrite Anchored Multiwalled Carbon Nanotubes for High-Performance Supercapacitor Applications,European Journal of Inorganic Chemistry

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Zinc Ferrite Anchored Multiwalled Carbon Nanotubes for High-Performance Supercapacitor Applications
European Journal of Inorganic Chemistry ( IF 2.2 ) Pub Date : 2018-01-17 , DOI: 10.1002/ejic.201700836
Shrikant S. Raut ₁ , Babasaheb R. Sankapal ₁ , Md. Shahriar A. Hossain _{2,

3} , Subrata Pradhan ₄ , Rahul R. Salunkhe _{2,

5} , Yusuke Yamauchi _{2,

6,

7}

Affiliation

Recently, thin-film supercapacitors have received much interest because they can achieve both high energy densities and high power densities, which make them suitable for practical applications. Here, thin films consisting of zinc ferrite (ZnFe2O4) anchored on multiwalled carbon nanotubes (CNT) were prepared through a simple and inexpensive successive ionic layer adsorption and reaction (SILAR) method. This method has the advantage of direct electrode formation without the use of any binder. The synergy of the composite electrode (ZnFe2O4-CNT) yields a high specific capacity of 217 mAhg(-1) at 5 mVs(-1), which is realized by contributions from the inner and outer active surfaces of the hybrid ZnFe2O4-CNT electrode. Furthermore, a solid-state symmetric device exhibits a highest specific energy of 12.80 Whkg(-1) and a specific power of 377.86 Wkg(-1), which clearly demonstrates that our hybrid ZnFe2O4-CNT electrode is promising and innovative for energy-storage applications.

中文翻译：

用于高性能超级电容器应用的锌铁氧体锚定多壁碳纳米管

最近，薄膜超级电容器受到了广泛关注，因为它们可以同时实现高能量密度和高功率密度，这使得它们适合实际应用。在这里，通过简单且廉价的连续离子层吸附和反应 (SILAR) 方法制备了由锚定在多壁碳纳米管 (CNT) 上的铁酸锌 (ZnFe2O4) 组成的薄膜。这种方法的优点是直接形成电极，无需使用任何粘合剂。复合电极 (ZnFe2O4-CNT) 的协同作用在 5 mVs(-1) 下产生了 217 mAhg(-1) 的高比容量，这是通过混合 ZnFe2O4-CNT 电极的内外活性表面的贡献实现的. 此外，固态对称器件的最高比能量为 12.80 Whkg(-1)，比功率为 377。

更新日期：2018-01-17

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