Multiwall carbon nanotubes purification and oxidation by nitric acid studied by the FTIR and electron spectroscopy methods

L. Stobinski, B. Lesiak, L. Kövér, J. Tóth, S. Biniak, G. Trykowski, J. Judek

Research output: Contribution to journalArticle

286 Citations (Scopus)

Abstract

A process of wet chemical purification, oxidation and functionalization of multiwall carbon nanotubes (MWCNTs) is investigated to determine the structural and chemical changes in atomic bonding caused by oxidation in an aqueous solution of concentrated (68%) HNO3 at 120°C. The original and oxidized multiwall carbon nanotubes (ox-MWCNTs) are studied using TEM, SEM, elemental analysis, mass spectrometry, EDX, FTIR, Raman and electron spectroscopy methods. The proposed wet chemical purification and modification of as-prepared MWCNTs, contaminated with amorphous carbon, catalyst supports and metallic catalysts removes effectively all impurities (traces of Al, Fe and amorphous carbon) resulting from the catalytic reaction applied for synthesizing the as-prepared MWCNTs. The proposed wet chemical purification of MWCNTs changes their hydrophobic nature to hydrophilic.

Original languageEnglish
Pages (from-to)77-84
Number of pages8
JournalJournal of Alloys and Compounds
Volume501
Issue number1
DOIs
Publication statusPublished - Jul 2 2010

Fingerprint

Nitric Acid
Carbon Nanotubes
Electron spectroscopy
Nitric acid
Purification
Carbon nanotubes
Oxidation
Amorphous carbon
Catalyst supports
Mass spectrometry
Raman spectroscopy
Energy dispersive spectroscopy
Impurities
Transmission electron microscopy
Scanning electron microscopy
Catalysts
Chemical analysis

Keywords

  • Electron spectroscopy methods
  • FTIR
  • Functionalization
  • Multiwall carbon nanotubes
  • Purification
  • Raman

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Materials Chemistry
  • Metals and Alloys

Cite this

Multiwall carbon nanotubes purification and oxidation by nitric acid studied by the FTIR and electron spectroscopy methods. / Stobinski, L.; Lesiak, B.; Kövér, L.; Tóth, J.; Biniak, S.; Trykowski, G.; Judek, J.

In: Journal of Alloys and Compounds, Vol. 501, No. 1, 02.07.2010, p. 77-84.

Research output: Contribution to journalArticle

Stobinski, L. ; Lesiak, B. ; Kövér, L. ; Tóth, J. ; Biniak, S. ; Trykowski, G. ; Judek, J. / Multiwall carbon nanotubes purification and oxidation by nitric acid studied by the FTIR and electron spectroscopy methods. In: Journal of Alloys and Compounds. 2010 ; Vol. 501, No. 1. pp. 77-84.
@article{b2defceb37c9433589931cdf4c4dc306,
title = "Multiwall carbon nanotubes purification and oxidation by nitric acid studied by the FTIR and electron spectroscopy methods",
abstract = "A process of wet chemical purification, oxidation and functionalization of multiwall carbon nanotubes (MWCNTs) is investigated to determine the structural and chemical changes in atomic bonding caused by oxidation in an aqueous solution of concentrated (68{\%}) HNO3 at 120°C. The original and oxidized multiwall carbon nanotubes (ox-MWCNTs) are studied using TEM, SEM, elemental analysis, mass spectrometry, EDX, FTIR, Raman and electron spectroscopy methods. The proposed wet chemical purification and modification of as-prepared MWCNTs, contaminated with amorphous carbon, catalyst supports and metallic catalysts removes effectively all impurities (traces of Al, Fe and amorphous carbon) resulting from the catalytic reaction applied for synthesizing the as-prepared MWCNTs. The proposed wet chemical purification of MWCNTs changes their hydrophobic nature to hydrophilic.",
keywords = "Electron spectroscopy methods, FTIR, Functionalization, Multiwall carbon nanotubes, Purification, Raman",
author = "L. Stobinski and B. Lesiak and L. K{\"o}v{\'e}r and J. T{\'o}th and S. Biniak and G. Trykowski and J. Judek",
year = "2010",
month = "7",
day = "2",
doi = "10.1016/j.jallcom.2010.04.032",
language = "English",
volume = "501",
pages = "77--84",
journal = "Journal of Alloys and Compounds",
issn = "0925-8388",
publisher = "Elsevier BV",
number = "1",

}

TY - JOUR

T1 - Multiwall carbon nanotubes purification and oxidation by nitric acid studied by the FTIR and electron spectroscopy methods

AU - Stobinski, L.

AU - Lesiak, B.

AU - Kövér, L.

AU - Tóth, J.

AU - Biniak, S.

AU - Trykowski, G.

AU - Judek, J.

PY - 2010/7/2

Y1 - 2010/7/2

N2 - A process of wet chemical purification, oxidation and functionalization of multiwall carbon nanotubes (MWCNTs) is investigated to determine the structural and chemical changes in atomic bonding caused by oxidation in an aqueous solution of concentrated (68%) HNO3 at 120°C. The original and oxidized multiwall carbon nanotubes (ox-MWCNTs) are studied using TEM, SEM, elemental analysis, mass spectrometry, EDX, FTIR, Raman and electron spectroscopy methods. The proposed wet chemical purification and modification of as-prepared MWCNTs, contaminated with amorphous carbon, catalyst supports and metallic catalysts removes effectively all impurities (traces of Al, Fe and amorphous carbon) resulting from the catalytic reaction applied for synthesizing the as-prepared MWCNTs. The proposed wet chemical purification of MWCNTs changes their hydrophobic nature to hydrophilic.

AB - A process of wet chemical purification, oxidation and functionalization of multiwall carbon nanotubes (MWCNTs) is investigated to determine the structural and chemical changes in atomic bonding caused by oxidation in an aqueous solution of concentrated (68%) HNO3 at 120°C. The original and oxidized multiwall carbon nanotubes (ox-MWCNTs) are studied using TEM, SEM, elemental analysis, mass spectrometry, EDX, FTIR, Raman and electron spectroscopy methods. The proposed wet chemical purification and modification of as-prepared MWCNTs, contaminated with amorphous carbon, catalyst supports and metallic catalysts removes effectively all impurities (traces of Al, Fe and amorphous carbon) resulting from the catalytic reaction applied for synthesizing the as-prepared MWCNTs. The proposed wet chemical purification of MWCNTs changes their hydrophobic nature to hydrophilic.

KW - Electron spectroscopy methods

KW - FTIR

KW - Functionalization

KW - Multiwall carbon nanotubes

KW - Purification

KW - Raman

UR - http://www.scopus.com/inward/record.url?scp=77954215039&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77954215039&partnerID=8YFLogxK

U2 - 10.1016/j.jallcom.2010.04.032

DO - 10.1016/j.jallcom.2010.04.032

M3 - Article

VL - 501

SP - 77

EP - 84

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

SN - 0925-8388

IS - 1

ER -