Self-assembly of β-FeOOH/rGO/CNT for a high-performance supercapacitor

Authors

Syeda W. Bokhari, Shanghai Jiao Tong University
Hui Pan, Shanghai Jiao Tong University
A Siddique, Ningbo Institute of Materials Technology and Engineering, University of Chinese Academy of Sciences
Muhammad Imtiaz, Shanghai Jiao Tong University
Zhixin Chen, University of WollongongFollow
Yao Li, Shanghai Jiao Tong University
Shenmin Zhu, Shanghai Jiao Tong UniversityFollow

RIS ID

123199

Publication Details

Bokhari, S. Wishal., Pan, H., Siddique, A. Hassan., Imtiaz, M., Chen, Z., Li, Y. & Zhu, S. (2018). Self-assembly of β-FeOOH/rGO/CNT for a high-performance supercapacitor. Materials Letters, 220 140-143.

Abstract

A self-assembled composite of bimorph 1-D akaganeite (β-FeOOH) into 2-D graphene-carbon nanotube matrix (GC) is prepared via hydrothermal method. The well ordered, chemically bonded structure results in low resistance and improved ion diffusion which enables the composite to deliver a specific capacitance of 533 F g −1 at current density of 1 A g −1 . An asymmetric supercapacitor has also been assembled using GC as cathode and GC-FeOOH as anode which exhibits a high energy density of 36.6 W h kg −1 at the power density of 1.2 kW kg −1 .