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

doi:10.1149/2.0031509ssl

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 journal › Article › peer-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 language	English
Pages (from-to)	M19-M22
Journal	ECS Solid State Letters
Volume	4
Issue number	9
DOIs	https://doi.org/10.1149/2.0031509ssl
Publication status	Published - 2015
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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title = "Carbon nanotube synthesis via the calciothermic reduction of carbon dioxide with iron additives",

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.",

author = "Tatsuya Kikuchi and Ryoma Ishida and Shungo Natsui and Takehiko Kumagai and Isao Ogino and Norihito Sakaguchi and Mikito Ueda and Suzuki, {Ryosuke O.}",

year = "2015",

doi = "10.1149/2.0031509ssl",

language = "English",

volume = "4",

pages = "M19--M22",

journal = "ECS Solid State Letters",

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publisher = "The Electrochemical Society",

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TY - JOUR

T1 - Carbon nanotube synthesis via the calciothermic reduction of carbon dioxide with iron additives

AU - Kikuchi, Tatsuya

AU - Ishida, Ryoma

AU - Natsui, Shungo

AU - Kumagai, Takehiko

AU - Ogino, Isao

AU - Sakaguchi, Norihito

AU - Ueda, Mikito

AU - Suzuki, Ryosuke O.

PY - 2015

Y1 - 2015

N2 - 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.

AB - 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.

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