Versatile and Fast Electrochemical Activation Method for Carbon Nanotube Fibers with Diverse Active Materials

Authors
Lee, SungjuYu, HayoungHan, Min GookJung, HyewonJung, Hee-TaeKim, Seung MinJeong, Hyeon Su
Issue Date
2024-12
Publisher
WILEY-V C H VERLAG GMBH
Citation
Small Methods
Abstract
In this study, the challenge of non-electrochemical activity in carbon nanotube fibers (CNTFs) is addressed by developing a modified chlorosulfonic acid (CSA) densification process specifically developed for directly spun CNTFs. This post-treatment method, well-known for enhancing the physical properties of CNTFs, utilizes the double diffusion phenomenon to efficiently integrate a diverse range of active materials, from conductive polymers like polyaniline (PANI) to metal oxides like nickel oxide (NiO), into the fibers. This universal and cost-effective approach not only simplifies the integration process but also significantly boosts both the electrochemical and physical properties of the fibers. For instance, the PANI@CNTF composite exhibited a remarkable 17-fold increase in specific capacitance and a two-fold increase in load value compared to its pristine counterparts. This method proves straightforward, efficient, and versatile, making it suitable for developing fiber-shaped electrodes that advance the capabilities of wearable energy storage systems.
Keywords
COMPOSITE; STRENGTH; ANODES; CNT; industrial carbon nanotube fiber; supercapacitor; composite
ISSN
2366-9608
URI
https://pubs.kist.re.kr/handle/201004/151922
DOI
10.1002/smtd.202401478
Appears in Collections:
KIST Article > 2024
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