Synthesis and characteristics of silica-coated carbon nanofibers on electroplated Co-Ni/C-fiber textiles

Kun Ho Jang, Sang Hoon Lee, Yujin Han, Seong Ho Yoon, Chang Seop Lee

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

In this study, carbon nanofibers (CNFs) were synthesized by chemical vapor deposition (CVD) to Co-Ni electroplated on C-fiber textiles. The synthesized CNFs were coated with a SiO2 layer through the hydrolysis of tetraethyl orthosilicate (TEOS). The characteristics of the CNFs were analyzed by SEM, EDS, XPS, and Raman spectroscopy. The morphology and characteristics of the SiO2-CNFs composite were investigated using TEM and XPS. It was thus verified that the CNFs were synthesized with a diameter of 30-40 nm and the SiO2 layer was uniformly coated to a thickness of 10 nm onto their surfaces. The electrochemical characteristics of the CNFs and the SiO2-CNFs composite were investigated using coin cell by galvanostatic charge-discharge. The as-synthesized CNFs and SiO2-CNFs composite were directly employed as anode materials without any binder. The CNFs had a discharge capacity of 258 mAhg-1 at the initial cycle with a retention rate of 95% after 30 cycles. The discharge capacity of the SiO2-CNFs composite was 1,486 mAhg-1 with a retention rate of 47%, which was greater than that of the CNFs.

Original languageEnglish
Pages (from-to)10767-10771
Number of pages5
JournalJournal of nanoscience and nanotechnology
Volume16
Issue number10
DOIs
Publication statusPublished - Oct 2016

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Biomedical Engineering
  • Materials Science(all)
  • Condensed Matter Physics

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