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https://hdl.handle.net/2440/122787
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Type: | Journal article |
Title: | Engineering of high-performance potassium-ion capacitors using polyaniline-derived N-doped carbon nanotubes anode and laser scribed graphene oxide cathode |
Author: | Moussa, M. Al-Bataineh, S.A. Losic, D. Dubal, D.P. |
Citation: | APPLIED MATERIALS TODAY, 2019; 16:425-434 |
Publisher: | Elsevier |
Issue Date: | 2019 |
ISSN: | 2352-9407 2352-9407 |
Statement of Responsibility: | Mahmoud Moussa, Sameer A. Al-Bataineh, Dusan Losic, Deepak P. Dubal |
Abstract: | Potassium (K) ion storage technology is recently receiving a great attention due to their low-cost and enormous abundance on the earth compared to lithium. However, the technology is still at a scientific research stage and exploring suitable electrode materials is a key challenge. Herein, we have engineered nitrogen doped carbon nanotubes (N-CNTs) as a promising anode material for K-ion storage through pyrolytic decomposition of polyaniline nanotubes (PAni-NTs). These N-CNTs delivers high reversible capacity with good rate performance and cycling stability. Taking advantage of these features, a potassium-ion hybrid capacitor (KIHC) is constructed using N-CNTs as battery-type anode and 3-dimensional (3D) laser scribed graphene (LSG) as capacitor-type cathode electrodes. The device displays a high energy density of 65 W h/kg, a high power output of 1000 W/kg, as well as a long cycling life (91% capacity retention over 5000 cycles). Thus, such an advanced energy storage system can satisfy the requirements of high power and high energy densities simultaneously in diverse applications at low-cost. |
Keywords: | N-doped carbon nanotubes; graphene; potassium-ion-capacitor |
Rights: | © 2019 Elsevier Ltd. All rights reserved. |
DOI: | 10.1016/j.apmt.2019.07.003 |
Grant ID: | http://purl.org/au-research/grants/arc/FT180100058 http://purl.org/au-research/grants/arc/IH150100003 |
Published version: | http://dx.doi.org/10.1016/j.apmt.2019.07.003 |
Appears in Collections: | ARC Research Hub for Graphene Enabled Industry Transformation publications Aurora harvest 8 Chemical Engineering publications |
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