AI Article Synopsis
- A high-capacity supercapacitor electrode was created by electrospinning a composite of TiCT MXene, Polyaniline (PANI), and Polyvinylidene fluoride (PVDF).
- The TiCT/PANI composite was synthesized by mixing TiCT with PANI in a NMP solution, and PVDF was added as a flexible binder for better electrospinning performance.
- The resulting electrode demonstrated impressive specific capacitance values of 740 Fg at a 2 mVs scan rate and 895 Fg at a 0.5 Ag charge-discharge current density, outperforming individual MXene and PANI electrodes.
Article Abstract
In this study, a high-capacity freestanding supercapacitor electrode was developed through electrospinning of a TiCT MXene/Polyaniline (PANI)/Polyvinylidene fluoride (PVDF) composite. MXene/PANI composite was achieved through a facile synthesis in which TiCT was mixed with PANI Emeraldine salt in N-Methyl-2-Pyrrolidone (NMP) solution using magnetic stirring. PVDF was added to the composite as a flexible binder to facilitate the electrospinning and produce a freestanding electrode. The specific capacitance of the freestanding MXene/PANI/PVDF electrode is 740 Fg at a scan rate of 2 mVs, and 895 Fg at a charge-discharge current density of 0.5 Ag, which was significantly higher than the specific capacitance of MXene (67 Fg) and PANI (54 Fg) electrospun electrodes.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11617255 | PMC |
| http://dx.doi.org/10.1016/j.heliyon.2024.e40482 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Carbonized wood loading sustainable tannin used as free-standing electrodes for assembling heavy metal-free supercapacitors.
Int J Biol Macromol
December 2024
Jiangsu Co-innovation Center of Efficient Processing and Utilization of Forestry Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, Jiangsu 210037, China. Electronic address:
The design of heavy metal-free thick supercapacitor electrodes with excellent energy storage performance through a novel and effective strategy represents an attractive yet challenging area of research. In this study, a sustainable redox-active tannic acid (TA) is loaded on the carbonized wood (CW) collector to construct a low-curvature, high-capacity, heavy metal-free supercapacitor electrode. The uniform loading of TA on the surface of the CW cell wall is achieved through the combined action of mutually stable hydrogen bonding and π-π interactions, which constructs a fast electron transport channel in the collector.
View Article and Find Full Text PDFHigh-capacity freestanding supercapacitor electrode based on electrospun TiCT MXene/PANI/PVDF composite.
Heliyon
November 2024
Applied Engineering Science Research Center, School of Engineering Science, College of Engineering, University of Tehran, Tehran, Iran.
Article Synopsis
- A high-capacity supercapacitor electrode was created by electrospinning a composite of TiCT MXene, Polyaniline (PANI), and Polyvinylidene fluoride (PVDF).
- The TiCT/PANI composite was synthesized by mixing TiCT with PANI in a NMP solution, and PVDF was added as a flexible binder for better electrospinning performance.
- The resulting electrode demonstrated impressive specific capacitance values of 740 Fg at a 2 mVs scan rate and 895 Fg at a 0.5 Ag charge-discharge current density, outperforming individual MXene and PANI electrodes.
A Promising Approach to Ultra-Flexible 1 Ah Lithium-Sulfur Batteries Using Oxygen-Functionalized Single-Walled Carbon Nanotubes.
Adv Sci (Weinh)
December 2024
Next-Generation Battery Research Center, Korea Electrotechnology Research Institute (KERI), 12, Jeongiui-gil, Seongsan-gu, Changwon-si, Gyeongsangnam-do, 51543, Republic of Korea.
Lithium-sulfur (Li-S) batteries represent a promising solution for achieving high energy densities exceeding 500 Wh kg, leveraging cathode materials with theoretical energy densities up to 2600 Wh kg. These batteries are also cost-effective, abundant, and environment-friendly. In this study, an innovative approach is proposed utilizing highly oxidized single-walled carbon nanotubes (Ox-SWCNTs) as a conductive fibrous scaffold and functional interlayer in sulfur cathodes and separators, respectively, to demonstrate large-area and ultra-flexible Li-S batteries with enhanced energy density.
View Article and Find Full Text PDFRoller-like Spore Carbon Sphere-Orientated Graphene Fibers Prepared via Rheological Engineering for Lithium Sulfur Batteries.
ACS Nano
October 2024
Department of Critical Care Medicine, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University Hangzhou 310016, China.
Article Synopsis
- Researchers have developed advanced flexible batteries using free-standing graphene fiber electrodes made from roller-like oriented spore carbon spheres, which enhance energy density and mechanical strength for portable electronics.* -
- The innovative manufacturing process involves microfluidic cospinning and plasma reduction to create well-structured graphene fibers that improve electrical contact and stability.* -
- When paired with sulfur cathodes and lithium metal anodes, these graphene fiber-based batteries show outstanding electrochemical performance, suppressing common issues like polysulfide shuttle effects and lithium dendrite growth.*
Free-Standing Poly(vinyl benzoquinone)/Reduced Graphene Oxide Composite Films as a Cathode for Lithium-Ion Batteries.
ACS Appl Mater Interfaces
October 2024
College of Materials, Xiamen University, Xiamen 361005, P. R. China.
Quinones with a rapid reduction-oxidation rate are promising high-capacity cathodes for lithium-ion batteries. However, the high solubility of quinone molecules in polar organic electrolytes results in low cycle stability, while their low electric conductivity causes low utilization of electrode materials. In this article, a new -benzoquinone derivative, poly(vinyl benzoquinone) (PVBQ), is designed and synthesized, and a solution-based method of preparing free-standing PVBQ/reduced graphene oxide (RGO) composite films is developed.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!