Logo
  • Resources
    • COTS for Space WEBINARS
    • ACCEDE 2022 Workshop on COTS
    • EEE COMPONENTS
    • SPECIFICATIONS / QPLs
    • EVENTS / WEBINARS
    • SPACE TALKS
    • TECH ARTICLES
    • MANUFACTURERS NOTIFICATIONS
  • Laboratory Services
    • LABORATORY STANDARD TESTING
    • NON STANDARD TESTING
    • SILICON CARBIDE -SiC- DIODES
    • CROWDTESTING
    • OPTOELECTRONICS
    • SMALL SATS
    • REPRESENTATIVE PROJECTS / PAPERS
  • Additional Services
    • INDUSTRY 4.0 CYBERSECURITY (IEC 62443)
    • PENETRATION TEST
    • CYBERSECURITY CERTIFIED (CSC)
    • CODE SCORE MATRIX
    • LONG-TERM STORAGE OF WAFERS
    • ELECTRONIC DESIGN
  • Tools
    • COMPARATOR
    • MY DCLs/BOMs
    • STOCKPLACE
  • About Us
  • My Request
  • Sign In
  • Resources
    • COTS for Space WEBINARS
    • ACCEDE 2022 Workshop on COTS
    • EEE COMPONENTS
    • SPECIFICATIONS / QPLs
    • EVENTS / WEBINARS
    • SPACE TALKS
    • TECH ARTICLES
    • MANUFACTURERS NOTIFICATIONS
  • Laboratory Services
    • LABORATORY STANDARD TESTING
    • NON STANDARD TESTING
    • SILICON CARBIDE -SiC- DIODES
    • CROWDTESTING
    • OPTOELECTRONICS
    • SMALL SATS
    • REPRESENTATIVE PROJECTS / PAPERS
  • Additional Services
    • INDUSTRY 4.0 CYBERSECURITY (IEC 62443)
    • PENETRATION TEST
    • CYBERSECURITY CERTIFIED (CSC)
    • CODE SCORE MATRIX
    • LONG-TERM STORAGE OF WAFERS
    • ELECTRONIC DESIGN
  • Tools
    • COMPARATOR
    • MY DCLs/BOMs
    • STOCKPLACE
  • About Us
  • My Request
  • Sign In
Blog Image
PASSIVES

Nitrogen-Doped Carbon Anode for Potassium-Ion Supercapacitors

  • Posted by doEEEt Media Group
  • On April 1, 2024
  • 0

Nitrogen-Doped Porous Carbon Anode for High-Performance Potassium-Ion Hybrid Supercapacitors

Researchers from the University of Science and Technology, Hefei, China, published new research on edge-nitrogen-doped porous carbon for energy-storage potassium-ion hybrid supercapacitors in Energy Material Advances.

“The development of cost-effective and high-performance electrochemical energy storage devices is imperative,” said paper’s corresponding author Wei Chen, a professor in the School of Chemistry and Materials Science, University of Science and Technology of China (USTC). “Currently, lithium-ion batteries still dominate the market, but they are limited in both lithium as a resource and in their power densities.”

Chen explained that potassium-ion hybrid supercapacitors (PIHCs) have several significant advantages as an alternative to lithium-ion batteries, especially to dual-carbon potassium ion hybrid capacitors (DC-PIHCs) with capacitive carbon cathode and battery-type carbon anode due to their low cost and high power/energy density.

“Currently, battery-type carbon anodes’ slow reaction kinetics and huge volume expansion result in poor rate performance and short long-cycle lifespans, which fail to match those of capacitive cathodes,” Chen said. Therefore, it is significant to develop carbonaceous anodes with superior rate performance and long cycle life for DC-PIHCs.”

Various strategies have been developed to adjust the microstructure of carbonaceous materials, such as heteroatom doping and porous structure construction, to improve electrochemical performance. Nowadays, the synthesis methods of porous carbon usually adopt various templates, which increase the cost and generate a lot of byproducts.

Moreover, different types of nitrogen doping exhibited distinct roles in carbon materials. It was widely accepted that pyrrolic nitrogen and pyridinic nitrogen are electrochemically active sites in carbon materials, while graphitic nitrogen doped into the carbon lattice does not affect K+ adsorption. Therefore, it is necessary to explore facile and economical strategies for synthesising high-concentration edge-nitrogen (pyrrolic nitrogen and pyridinic nitrogen) doped porous carbons.

Chen said,

“In this paper, we developed a template-free strategy for preparation of high-concentration edge-nitrogen doped porous carbon (NPC) anode of DC-PHIC derived from D (+)-glucosamine hydrochloride (DGH) and carboxylated chitosan (CC), which includes two steps of hydrothermal polymerization and high-temperature carbonization. We aim to inspire future research in the field.”

“BET and XPS analysis demonstrated that NPC presents large specific surface area (523.2 m2/g) and exhibits high edge-nitrogen doping level of 5.19 at%, which improved K+ adsorption and intercalation capabilities,” Chen said.

Abstract

Developing facile and economical strategies to fabricate nitrogen-doped porous carbon anode is desirable for dual-carbon potassium ion hybrid supercapacitors (PIHCs). Here, a high-concentration edge-nitrogen-doped porous carbon (NPC) anode is synthesized by a template-free strategy, in which the total content of pyrrolic nitrogen and pyridinic nitrogen accounts for more than 80% of the nitrogen atoms. As a result, the NPC anode displays a capacity of 315.4 mA h g−1 at a current rate of 0.1 A g−1 and 189.1 mA h g−1 at 5 A g−1. Ex situ characterizations and density functional theory calculations demonstrate that high-concentration edge-nitrogen doping enhances K+ adsorption and electronic conductivity of carbon materials, resulting in good electrochemical performance. The assembled NPC//CMK-3 PIHC delivers an energy density of 71.1 W h kg−1 at a power density of 771.9 W kg−1 over 8,000 cycles.

Conclusion

In summary, a template-free strategy has been developed to prepare high-concentration edge-NPC as anode for DC-PIHC, simplifying the synthesis process and avoiding wasting template materials. Brunauer–Emmett–Teller and XPS analysis demonstrated that NPC presented a large specific surface area (523.2 m2/g) and exhibited a high edge-nitrogen doping level of 5.19 at%, which improved K+ adsorption and intercalation capabilities. As a result, the NPC anode displayed a capacity of 315.4 mA h g−1 at 0.1 A g−1 and 189.1 mA h g−1 at 5 A g−1 over 2,000 cycles. The assembled NPC//CMK-3 PIHC delivered a high energy density of 71.1 W h kg−1 with only 0.0025% capacity decay per cycle at the power density of 771.9 W kg−1 over 8,000 cycles.

Read the full paper:

Zhen Pan et al, A High-Concentration Edge-Nitrogen-Doped Porous Carbon Anode via Template Free Strategy for High-Performance Potassium-Ion Hybrid Capacitors, Energy Material Advances (2024). DOI: 10.34133/energymatadv.0080

Source: Science.org
  • Author
  • Recent Posts
doEEEt Media Group
doEEEt Media Group
doEEEt media is the group behind every post on this blog.
A team of experts that brings you the latest and most important news about the EEE Part and Space market.
doEEEt Media Group
Latest posts by doEEEt Media Group (see all)
  • Miniature RF Connectors - April 29, 2025
  • Miniature RF Connectors for high-performance testing - April 24, 2025
  • Space-Grade components available for immediate delivery - April 10, 2025
TAGS: Capacitors SUPERCAPACITORS

Previous Post

Talking on COTS for space with Dan Friedlander. Episode 8: Policy making progress

Next Post

Advanced 3D Carbon Tube Supercapacitors for AC Line Filtering
0 comments on Nitrogen-Doped Carbon Anode for Potassium-Ion Supercapacitors
Recent Posts
  • Miniature RF Connectors
  • Miniature RF Connectors for high-performance testing
  • Space-Grade components available for immediate delivery
  • Introduction to RD ALFA Microelectronics: Components and Capabilities
  • Managing EEE components for LEO and lower cost space missions
Scroll

doEEEt.com

DoEEEt: Electrical Electronic Electromechanical (EEE) parts database. Find (EEE) components/parts products and datasheets from hundreds of manufacturers.

Privacy Policy and Legal Notice

Copyright

Cookie Policy

Copyright © 2021 ALTER TECHNOLOGY TÜV NORD S.A.U

Company

About us

Contact us

How does doEEEt works? – FAQ

ALTER Laboratory Services

Microwave and RF Testing

Small Sats Testing

COTS components Testing

Authenticity Test