Multi-heteroatom doped nanocarbons for high performance double carbon potassium ion capacitor
Article
Pham, Hong Duc, Fernando, Joseph F.S., Horn, Michael, MacLeod, Jennifer, Motta, Nunzio, Doherty, William O.S., Payne, Alice, Nanjundan, Ashok Kumar, Golberg, Dmitri and Dalal, Deepak. 2021. "Multi-heteroatom doped nanocarbons for high performance double carbon potassium ion capacitor." Electrochimica Acta. 389. https://doi.org/10.1016/j.electacta.2021.138717
Article Title | Multi-heteroatom doped nanocarbons for high performance double carbon potassium ion capacitor |
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ERA Journal ID | 1629 |
Article Category | Article |
Authors | Pham, Hong Duc, Fernando, Joseph F.S., Horn, Michael, MacLeod, Jennifer, Motta, Nunzio, Doherty, William O.S., Payne, Alice, Nanjundan, Ashok Kumar, Golberg, Dmitri and Dalal, Deepak |
Journal Title | Electrochimica Acta |
Journal Citation | 389 |
Article Number | 138717 |
Number of Pages | 9 |
Year | 2021 |
Publisher | Elsevier |
Place of Publication | United Kingdom |
ISSN | 0013-4686 |
1873-3859 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.electacta.2021.138717 |
Web Address (URL) | https://www.sciencedirect.com/science/article/abs/pii/S0013468621010070 |
Abstract | Potassium-ion capacitor (KICs) is an emerging technology that can potentially combines the virtue of high power capability of supercapacitors and high energy density of batteries. Herein, we have scientifically transformed blue denim textile waste into two different forms of nanocarbons to assemble dual carbon potassium-ion hybrid capacitor (KIHC). The unique composition of indigo and sulphur dyes in blue jeans enables to produce multi-heteroatom (nitrogen, sulphur and oxygen) doped hard carbon (MHC) with large interlayer spacing (0.41 nm) in a single step. An in-situ transmission electron microscopy (TEM) analysis reveal that the charge stored in disordered and large interlayer spaced graphitic structure enable fast kinetics for efficient potassium-ion transportation. Coupling with an activated carbon foam (ACF)-based cathode, a full cell of potassium-ion capacitor successfully delivers a high energy density of 181 Wh kg−1 at 70.4 W kg−1 and 61.8 Wh kg−1 at 4000 W kg−1, as well as an long lifespan of 5000 cycles with over 89% of capacity retention. These performance statistics match or exceed state-of-the-art values for KIHCs, providing novel strategy to develop dual carbon ion capacitors with high energy and high power capabilities. |
Keywords | Hybrid energy storage; Potassium-ion; Waste textiles; Nanocarbons |
ANZSRC Field of Research 2020 | 4018. Nanotechnology |
400401. Carbon capture engineering (excl. sequestration) | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Queensland University of Technology |
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