Jump to main content
Jump to site search


Fabrication of hollow nanorod electrode based on RuO2//Fe2O3 for asymmetric supercapacitor

Abstract

In this work, hollow RuO2 nanotube arrays were successfully grown on carbon cloth by a facile two-step method to fabricate a bind-free elecrode. The well-aligned electrode displays excellent electrochemical performance. By using RuO2 hollow nanotube arrays as the positive electrode and Fe2O3 as the negative electrode, a flexible solid-state asymmetric supercapacitor (ASC) has been fabricated and exhibited excellent electrochemical performance, such as a high capacitance of 4.9 F cm-3, a high energy density of 1.5 mWh cm-3 and a high power density of 9.1 mW cm-3. In addition, the two-electrode ASC shows high cycle stability with 97% capacitance retention after 5000 charge-discharge cycles. These excellent electrochemical performances are ascribed to the unique hollow structural design of electrodes, which can shorten ion diffusion length, provide fast ion transport channel, and offer large electrode/electrolyte interface for charge-transfer reaction. The structural design and the synthesis approach are general and can be extended to synthesizing a broad range of materials systems.

Back to tab navigation

Supplementary files

Publication details

The article was received on 25 Feb 2018, accepted on 10 May 2018 and first published on 12 May 2018


Article type: Paper
DOI: 10.1039/C8DT00740C
Citation: Dalton Trans., 2018, Accepted Manuscript
  •   Request permissions

    Fabrication of hollow nanorod electrode based on RuO2//Fe2O3 for asymmetric supercapacitor

    Q. Wang, X. Liang, Y. Ma and D. Zhang, Dalton Trans., 2018, Accepted Manuscript , DOI: 10.1039/C8DT00740C

Search articles by author

Spotlight

Advertisements