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N-Doped carbon nanoparticles on highly porous carbon nanofiber electrodes for sodium ion batteries

Journal Article · · RSC Advances
DOI:https://doi.org/10.1039/d3ra00635b· OSTI ID:2471450
 [1];  [1];  [2];  [3];  [4]
  1. Istanbul Technical University (Turkey)
  2. Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
  3. Yalova University (Turkey)
  4. Korea Institute of Industrial Technology (KITECH), Ansan (Korea, Republic of)
Nitrogen doped carbon nanoparticles on highly porous carbon nanofiber electrodes were successfully synthesized via combining centrifugal spinning, chemical polymerization of pyrrole and a two-step heat treatment. Nanoparticle-on-nanofiber morphology with highly porous carbon nanotube like channels were observed from SEM and TEM images. Nitrogen doped carbon nanoparticles on highly porous carbon nanofiber (N-PCNF) electrodes exhibited excellent cycling and C-rate performance with a high reversible capacity of around 280 mA h g-1 in sodium ion batteries. Moreover, at 1000 mA g-1, a high reversible capacity of 172 mA h g-1 was observed after 300 cycles. The superior electrochemical properties were attributed to a highly porous structure with enlarged d-spacings, enriched defects and active sites due to nitrogen doping. The electrochemical results prove that N-PCNF electrodes are promising electrode materials for high performance sodium ion batteries.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
Korea Institute of Industrial Technology; The Scientific and Technology Research Council of Turkey (TUBITAK); USDOE
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
2471450
Journal Information:
RSC Advances, Journal Name: RSC Advances Journal Issue: 12 Vol. 13; ISSN 2046-2069
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English

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