Synthesis of carbon nanotube-iron oxide composites via combustion waves for hybrid Li-ion battery anodes

Seonghyun Park, Byungseok Seo, Dongjoon Shin, Seunghoon Chae, Hyunjoon Cho, Sangtae Kim, Wonjoon Choi

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

The design and synthesis of suitable transition metal oxide (TMO) with carbonaceous material are crucial to produce high-performance anodes for Lithium-ion batteries (LIBs). Here, we show a facile synthesis method for iron oxide and carbon nanotube (CNT) composite via CNT-guided combustion waves. The combustion waves propagate through a freestanding film composed of multi-walled CNTs (MWCNTs), iron nitrate, and combustible nitrocellulose, synthesizing the composite in one-pot within a few seconds. The resulting composite consists of MWCNT networks encapsulating iron oxide submicron particles (CFs). The composite electrode employing optimized CFs provides exceptional initial specific capacity and rate capability (792 mAh/g at 0.1C and 588 mAh/g at 5C) and an increased capacity of 1215 mAh/g after 500 charge–discharge cycles at 1C. The morphological and electrochemical characterization reveal pulverized nanoparticles encapsulated within MWCNT networks, entailing hybrid capacities of redox conversion and pseudocapacitance. This facile synthesis method for TMO–MWCNT composites provides a feasible family of low-cost composite electrodes for high-performance LIBs.

Original languageEnglish
Article number144260
JournalChemical Engineering Journal
Volume470
DOIs
Publication statusPublished - 2023 Aug 15

Bibliographical note

Publisher Copyright:
© 2023 Elsevier B.V.

Keywords

  • Carbon nanotubes
  • Combustion synthesis
  • Electrode
  • Iron oxide
  • Li-ion battery

ASJC Scopus subject areas

  • General Chemistry
  • Environmental Chemistry
  • General Chemical Engineering
  • Industrial and Manufacturing Engineering

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