Synthesis of N-doped and undoped carbon nanotubes on Fe/MgO catalysts

Yong Cao; Qing Ze Jiao; Yun Zhao

Synthesis of N-doped and undoped carbon nanotubes on Fe/MgO catalysts

Yong Cao, Qing Ze Jiao, Yun Zhao^*

^*Corresponding author for this work

School of Chemistry and Chemical Engineering

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

N-doped and undoped carbon nanotubes (CN_x and CNTs) were synthesized by the catalytic chemical vapor deposition of ethylenediamine and hexane on Fe/MgO catalysts. The Fe catalysts were obtained by calcination of a Mg/Fe layered double hydroxide (LDH) and a mixture of Mg(NO₃)₂/Fe(NO₃)₃ precursors followed by reduction (FeLDH and Fe-Mg(NO₃)₂/Fe(NO₃)₃). The CNTs grown on both catalysts had tubular structures with hollow cores while some of the CN_x grown on Fe-Mg(NO₃)₂/Fe(NO₃)₃ had a different morphology from the conventional bamboo-shape of those grown on Fe-LDH. This special morphology with thick walls had some space between the graphite layers. The molar content of N in the CN_x grown on Fe-LDH was 6.3%, which was a little more than 5.7% found in the CN_x grown on Fe-Mg(NO₃)₂/Fe(NO₃)₃. However, the latter has more defects and disorders.

Original language	English
Pages (from-to)	2380-2384
Number of pages	5
Journal	Wuli Huaxue Xuebao/ Acta Physico - Chimica Sinica
Volume	25
Issue number	11
Publication status	Published - 2009

Keywords

Carbon nanotube
Catalyst
Chemical vapor deposition
Layered double hydroxide
N-doped carbon nanotube
Precursor

Cite this

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title = "Synthesis of N-doped and undoped carbon nanotubes on Fe/MgO catalysts",

abstract = "N-doped and undoped carbon nanotubes (CNx and CNTs) were synthesized by the catalytic chemical vapor deposition of ethylenediamine and hexane on Fe/MgO catalysts. The Fe catalysts were obtained by calcination of a Mg/Fe layered double hydroxide (LDH) and a mixture of Mg(NO3)2/Fe(NO3)3 precursors followed by reduction (FeLDH and Fe-Mg(NO3)2/Fe(NO3)3). The CNTs grown on both catalysts had tubular structures with hollow cores while some of the CNx grown on Fe-Mg(NO3)2/Fe(NO3)3 had a different morphology from the conventional bamboo-shape of those grown on Fe-LDH. This special morphology with thick walls had some space between the graphite layers. The molar content of N in the CNx grown on Fe-LDH was 6.3\%, which was a little more than 5.7\% found in the CNx grown on Fe-Mg(NO3)2/Fe(NO3)3. However, the latter has more defects and disorders.",

keywords = "Carbon nanotube, Catalyst, Chemical vapor deposition, Layered double hydroxide, N-doped carbon nanotube, Precursor",

author = "Yong Cao and Jiao, \{Qing Ze\} and Yun Zhao",

year = "2009",

language = "English",

volume = "25",

pages = "2380--2384",

journal = "Wuli Huaxue Xuebao/ Acta Physico - Chimica Sinica",

issn = "1000-6818",

publisher = "Elsevier B.V.",

number = "11",

}

TY - JOUR

T1 - Synthesis of N-doped and undoped carbon nanotubes on Fe/MgO catalysts

AU - Cao, Yong

AU - Jiao, Qing Ze

AU - Zhao, Yun

PY - 2009

Y1 - 2009

N2 - N-doped and undoped carbon nanotubes (CNx and CNTs) were synthesized by the catalytic chemical vapor deposition of ethylenediamine and hexane on Fe/MgO catalysts. The Fe catalysts were obtained by calcination of a Mg/Fe layered double hydroxide (LDH) and a mixture of Mg(NO3)2/Fe(NO3)3 precursors followed by reduction (FeLDH and Fe-Mg(NO3)2/Fe(NO3)3). The CNTs grown on both catalysts had tubular structures with hollow cores while some of the CNx grown on Fe-Mg(NO3)2/Fe(NO3)3 had a different morphology from the conventional bamboo-shape of those grown on Fe-LDH. This special morphology with thick walls had some space between the graphite layers. The molar content of N in the CNx grown on Fe-LDH was 6.3%, which was a little more than 5.7% found in the CNx grown on Fe-Mg(NO3)2/Fe(NO3)3. However, the latter has more defects and disorders.

AB - N-doped and undoped carbon nanotubes (CNx and CNTs) were synthesized by the catalytic chemical vapor deposition of ethylenediamine and hexane on Fe/MgO catalysts. The Fe catalysts were obtained by calcination of a Mg/Fe layered double hydroxide (LDH) and a mixture of Mg(NO3)2/Fe(NO3)3 precursors followed by reduction (FeLDH and Fe-Mg(NO3)2/Fe(NO3)3). The CNTs grown on both catalysts had tubular structures with hollow cores while some of the CNx grown on Fe-Mg(NO3)2/Fe(NO3)3 had a different morphology from the conventional bamboo-shape of those grown on Fe-LDH. This special morphology with thick walls had some space between the graphite layers. The molar content of N in the CNx grown on Fe-LDH was 6.3%, which was a little more than 5.7% found in the CNx grown on Fe-Mg(NO3)2/Fe(NO3)3. However, the latter has more defects and disorders.

KW - Carbon nanotube

KW - Catalyst

KW - Chemical vapor deposition

KW - Layered double hydroxide

KW - N-doped carbon nanotube

KW - Precursor

UR - https://www.scopus.com/pages/publications/70449382618

M3 - Article

AN - SCOPUS:70449382618

SN - 1000-6818

VL - 25

SP - 2380

EP - 2384

JO - Wuli Huaxue Xuebao/ Acta Physico - Chimica Sinica

JF - Wuli Huaxue Xuebao/ Acta Physico - Chimica Sinica

IS - 11

ER -

Synthesis of N-doped and undoped carbon nanotubes on Fe/MgO catalysts

Abstract

Keywords

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