Issue 79, 2024

Advanced core–shell hollow carbon nanofibers for ion and electron accessibility in sodium ion batteries

Abstract

One-dimensional core–shell hollow carbon nanofibers (HCNFs) have been synthesized by coaxial electrospinning, deacetylation and carbonization, which exhibit multi-surface properties that enhance electrolyte infiltration and facilitate ion/electron transport. The nitrogen-doped hard carbon outer shell compensates for the low conductivity of amorphous carbon, and the inner core carbon supports the stability of core–shell hollow structures. This unique structure ensures the accessibility of electrons/ions during electrochemical reactions and contributes to the superior rate performance of HCNFs. Ultimately, a high retention rate of 77% of the initial capacity value (0.1 A g−1) was demonstrated at a current density of 2 A g−1. The core–shell hollow structure designed in this work greatly optimizes the sodium transport dynamics.

Graphical abstract: Advanced core–shell hollow carbon nanofibers for ion and electron accessibility in sodium ion batteries

Supplementary files

Article information

Article type
Communication
Submitted
05 Jul 2024
Accepted
06 Sep 2024
First published
09 Sep 2024

Chem. Commun., 2024,60, 11168-11171

Advanced core–shell hollow carbon nanofibers for ion and electron accessibility in sodium ion batteries

Z. He, Y. Liu, X. Yuan, X. Wei, S. Liu, Y. Cao, C. Lu, Z. Wang, B. Zhao, Q. Wan and Y. Song, Chem. Commun., 2024, 60, 11168 DOI: 10.1039/D4CC03352C

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