Electrodeposited NiFe2Se4 on Nickel Foam as a Binder-Free Electrode for High-Performance Asymmetric Supercapacitors,Industrial & Engineering Chemistry Research

当前位置： X-MOL 学术 › Ind. Eng. Chem. Res. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Electrodeposited NiFe2Se4 on Nickel Foam as a Binder-Free Electrode for High-Performance Asymmetric Supercapacitors
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2020-07-12 , DOI: 10.1021/acs.iecr.0c02451
Beirong Ye ₁ , Xianjun Cao ₁ , Qiang Zhao ₁ , Jinshu Wang ₁

Affiliation

Preparation of electrode materials with rich redox peaks, fast ion-passage channels, and excellent cycling stability through a cost-effective process is vitally important for supercapacitors (SCs). In this work, we successfully fabricated a bimetallic selenide NiFe₂Se₄ through a simple and low-cost electrodeposition method. The resulting NiFe₂Se₄ electrode prepared at an optimized condition delivers a high specific capacity (372.2 mAh g^–1 at 1 A g^–1) and desirable cycling stability. Besides, the assembled NiFe₂Se₄//AC asymmetric supercapacitor (ASC) achieves a high operating voltage (1.6 V) with a maximum energy density of 45.6 Wh kg^–1 and an outstanding cycling stability (maintains 101.4% of its original capacitance value after 10 000 cycles). Owing to the superior electrochemical performance, the NiFe₂Se₄//AC ASCs can light up a red light-emitting diode (LED) for real-time application.

中文翻译：

镍泡沫上电沉积的NiFe ₂ Se ₄作为高性能非对称超级电容器的无粘结剂电极

对于超级电容器（SC）而言，通过具有成本效益的工艺来制备具有丰富的氧化还原峰，快速的离子通道和出色的循环稳定性的电极材料至关重要。在这项工作中，我们通过一种简单且低成本的电沉积方法成功地制造了双金属硒化物NiFe ₂ Se ₄。将所得的NiFe ₂硒₄以优化的条件制备电极提供高的比容量（毫安372.2克^-1 1个A G ^-1）和理想的循环稳定性。此外，组装好的NiFe ₂ Se ₄// AC不对称超级电容器（ASC）可实现高工作电压（1.6 V），最大能量密度为45.6 Wh kg ^–1，并具有出色的循环稳定性（在1万次循环后仍保持其原始电容值的101.4％）。由于具有出色的电化学性能，NiFe ₂ Se ₄ // AC ASC可以点亮红色发光二极管（LED）以进行实时应用。

更新日期：2020-08-05

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11