Dia-Magnetic to Ferro-Magnetic Behavioral Change of Fe-Catalysts Based Nitrogenated Carbon Nanotubes (NCNTs) by the Process of Chlorination/Oxidation

SC Ray, DR Sahu, P Papakonstantinou

Research output: Contribution to journalArticle

Abstract

In this work, we have synthesized multiwall nitrogenated carbon nanotubes (MW-NCNTs) with Fe catalysts by the microwave plasma-enhanced chemical vapor deposition process@950 �C and subsequently functionalized with chlorine and oxygen. The dia-magnetic behavioral M-H loop of non-functionalized MW-NCNTs were turn into ferromagnetic behaviors by the process of chlorination and oxidation respectively; which were characterized by means of superconducting quantum interference device magnetometer within the temperature range 5–300 K. A prominent cusp like behavior is also observed at around ≈45 K in MFC and MZFC measurements confirming the ferromagnetic behaviors of these MW-NCNTs after chlorination and oxidation.
LanguageEnglish
Pages8269-8273
JournalJournal of Nanoscience and Nanotechnology
Volume11
DOIs
Publication statusPublished - 1 Sep 2011

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chlorination
Carbon Nanotubes
Chlorination
Carbon nanotubes
carbon nanotubes
catalysts
Oxidation
oxidation
Catalysts
SQUIDs
Chlorine
Magnetometers
Plasma enhanced chemical vapor deposition
cusps
magnetometers
chlorine
Microwaves
vapor deposition
Oxygen
interference

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title = "Dia-Magnetic to Ferro-Magnetic Behavioral Change of Fe-Catalysts Based Nitrogenated Carbon Nanotubes (NCNTs) by the Process of Chlorination/Oxidation",
abstract = "In this work, we have synthesized multiwall nitrogenated carbon nanotubes (MW-NCNTs) with Fe catalysts by the microwave plasma-enhanced chemical vapor deposition process@950 �C and subsequently functionalized with chlorine and oxygen. The dia-magnetic behavioral M-H loop of non-functionalized MW-NCNTs were turn into ferromagnetic behaviors by the process of chlorination and oxidation respectively; which were characterized by means of superconducting quantum interference device magnetometer within the temperature range 5–300 K. A prominent cusp like behavior is also observed at around ≈45 K in MFC and MZFC measurements confirming the ferromagnetic behaviors of these MW-NCNTs after chlorination and oxidation.",
author = "SC Ray and DR Sahu and P Papakonstantinou",
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T1 - Dia-Magnetic to Ferro-Magnetic Behavioral Change of Fe-Catalysts Based Nitrogenated Carbon Nanotubes (NCNTs) by the Process of Chlorination/Oxidation

AU - Ray, SC

AU - Sahu, DR

AU - Papakonstantinou, P

PY - 2011/9/1

Y1 - 2011/9/1

N2 - In this work, we have synthesized multiwall nitrogenated carbon nanotubes (MW-NCNTs) with Fe catalysts by the microwave plasma-enhanced chemical vapor deposition process@950 �C and subsequently functionalized with chlorine and oxygen. The dia-magnetic behavioral M-H loop of non-functionalized MW-NCNTs were turn into ferromagnetic behaviors by the process of chlorination and oxidation respectively; which were characterized by means of superconducting quantum interference device magnetometer within the temperature range 5–300 K. A prominent cusp like behavior is also observed at around ≈45 K in MFC and MZFC measurements confirming the ferromagnetic behaviors of these MW-NCNTs after chlorination and oxidation.

AB - In this work, we have synthesized multiwall nitrogenated carbon nanotubes (MW-NCNTs) with Fe catalysts by the microwave plasma-enhanced chemical vapor deposition process@950 �C and subsequently functionalized with chlorine and oxygen. The dia-magnetic behavioral M-H loop of non-functionalized MW-NCNTs were turn into ferromagnetic behaviors by the process of chlorination and oxidation respectively; which were characterized by means of superconducting quantum interference device magnetometer within the temperature range 5–300 K. A prominent cusp like behavior is also observed at around ≈45 K in MFC and MZFC measurements confirming the ferromagnetic behaviors of these MW-NCNTs after chlorination and oxidation.

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DO - 10.1166/jnn.2011.5061

M3 - Article

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EP - 8273

JO - Journal of Nanoscience and Nanotechnology

T2 - Journal of Nanoscience and Nanotechnology

JF - Journal of Nanoscience and Nanotechnology

SN - 1533-4880

ER -