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



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.


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 .

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