Jump to main content
Jump to site search


A new strategy for integrating semiconducting SWCNTs into pseudo-cubic In2O3 heterostructures for solid-state symmetric supercapacitors with a superior stability and specific-capacitance

Abstract

Herein, we report a rapid one-step hydrothermal synthesis of semiconducting single-walled carbon nanotubes/pesedo-cubic In2O3 heterostructures (s-S/IH) and successfully demonstrated LED lighting by using symmetric solid-state supercapacitors (SSCs). This is a simple, scalable, proficient and in situ synthesis method to harvest materials that can be engaged as cutting-edge electrode materials for high-energy SSCs. The cost effective and environment-friendly s-S/IH conveys excellent electrochemical properties with a high specific capacitance (898 F g-1 at a current density of 1.8 A g-1), and tremendous rate capabilities with an excellent capacitance (451 F g-1 at a current density of 3.8 A g-1). The SSC devices with a maximum potential window of 1.2 V are fabricated by using two similar s-S/IH electrodes in order to justify the outstanding performance for real-life energy storage devices. Notably, the SSC devices offered a high specific capacitance (179 F g-1 at 2 A g-1), excellent energy density (36 W h kg-1 at 1200 W kg-1), an ultra-high power density (3900 W kg-1 at 23 W h kg-1), and remarkable cyclic stability (91.8 % specific capacitance retention rate after 5000 cycles). These extraordinary findings illustrate an insight to design nanocube In2O3 lattice frustrated by very small concentration of semiconducting single-walled carbon nanotubes that are economically affordable and environmentally harmonious materials for the fabrication and demonstration of high performance SSC devices.

Back to tab navigation

Supplementary files

Publication details

The article was received on 13 Feb 2018, accepted on 05 Jul 2018 and first published on 06 Jul 2018


Article type: Paper
DOI: 10.1039/C8TA01563E
Citation: J. Mater. Chem. A, 2018, Accepted Manuscript
  •   Request permissions

    A new strategy for integrating semiconducting SWCNTs into pseudo-cubic In2O3 heterostructures for solid-state symmetric supercapacitors with a superior stability and specific-capacitance

    R. K. Mishra, J. H. Ryu, H. Kwon and S. H. Jin, J. Mater. Chem. A, 2018, Accepted Manuscript , DOI: 10.1039/C8TA01563E

Search articles by author

Spotlight

Advertisements