Carbon nanotube synthesis via the calciothermic reduction of carbon dioxide with iron additives

Tatsuya Kikuchi, Ryoma Ishida, Shungo Natsui, Takehiko Kumagai, Isao Ogino, Norihito Sakaguchi, Mikito Ueda, Ryosuke O. Suzuki

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

The novel fabrication of multi-walled carbon nanotube (MWCNT)/cementite (Fe3C) nanocomposites was demonstrated via the calciothermic reduction of carbon dioxide (CO2) through electrolysis in molten CaCl2/CaO with iron additives at 1173 K. In this technique, CO2 generated from a graphite anode is reduced to carbon with a metallic calcium reductant formed on a graphite cathode via electrolysis in molten salt. Calciothermic reduction without iron additives resulted in the formation of onion-like carbons (OLCs) with spherical graphite layers and thin graphite sheets. In contrast, MWCNT/Fe3C nanocomposites and OLCs were successfully fabricated via calciothermic reduction with iron additives through their catalytic activities.

Original languageEnglish
Pages (from-to)M19-M22
JournalECS Solid State Letters
Volume4
Issue number9
DOIs
Publication statusPublished - 2015
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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