Multi-functionalized herringbone carbon nanofiber for anodes of lithium ion batteries

Mok Hwa Kim, Min Young Cho, Kwang Bum Kim, Han Gi Jeong, Joong Tark Han, Kwang Chul Roh

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Herringbone carbon nanofibers (HCNFs) are prepared for use as anode materials in lithium-ion batteries (LIBs). HCNFs are prepared using a Ni-Fe catalyst and subsequently multi-functionalized with oxygen using the Hummers' method, and then with both oxygen and nitrogen-containing 2-ureido-4[1H]pyrimidinone (UHP) moieties, which endow the HCNFs with the ability to form quadruple hydrogen bonds (QHBs). The as-prepared HCNFs are, on average, 13 μm in length and 100 nm in diameter, with a highly graphitic structure. The oxidized HCNFs (Ox-HCNFs) obtained by Hummers' method are partially exfoliated, having double-bladed saw-like structures that extend in the direction of the graphite planes. QHBs are formed between the HCNFs after functionalization with the UHP moieties. The final surface-modified HCNFs (N-Ox-HCNFs) have more electrochemical sites, shorter Li + diffusion lengths, and additional electron pathways compared with the as-prepared HCNF and Ox-HCNF. The introduction of oxygen- and nitrogen-containing functional groups improves the performance of LIBs: a high charge capacity of 763 mA h g -1 at 0.1 A g -1 , excellent rate capability (a capacity of 402 mA h g -1 at 3 A g -1 ), and near 100% capacity retention after 300 cycles are reported.

Original languageEnglish
Pages (from-to)18612-18618
Number of pages7
JournalPhysical Chemistry Chemical Physics
Volume19
Issue number28
DOIs
Publication statusPublished - 2017 Jan 1

Fingerprint

Carbon nanofibers
electric batteries
Anodes
anodes
lithium
carbon
ions
Oxygen
Hydrogen bonds
oxygen
Nitrogen
Pyrimidinones
hydrogen bonds
Lithium-ion batteries
nitrogen
Graphite
diffusion length
Functional groups
graphite
catalysts

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Cite this

Kim, Mok Hwa ; Cho, Min Young ; Kim, Kwang Bum ; Jeong, Han Gi ; Han, Joong Tark ; Roh, Kwang Chul. / Multi-functionalized herringbone carbon nanofiber for anodes of lithium ion batteries. In: Physical Chemistry Chemical Physics. 2017 ; Vol. 19, No. 28. pp. 18612-18618.
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Multi-functionalized herringbone carbon nanofiber for anodes of lithium ion batteries. / Kim, Mok Hwa; Cho, Min Young; Kim, Kwang Bum; Jeong, Han Gi; Han, Joong Tark; Roh, Kwang Chul.

In: Physical Chemistry Chemical Physics, Vol. 19, No. 28, 01.01.2017, p. 18612-18618.

Research output: Contribution to journalArticle

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