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Title: Growth of thin carbon nanotubes on MoCoMgO catalyst

Abstract

Thin carbon nanotubes were synthesized by catalytic decomposition of CH{sub 4} over MoCoMgO catalyst. We obtained bundles of ordered nanotubes under hydrogen gas and disordered nanotubes under nitrogen gas over the same catalyst. The formation mechanism of nanotube bundles was discussed. The number of the tube walls was 2-5 with the corresponding diameters of 3-6 nm. We obtained a high production yield of 500 wt.% for the thin carbon nanotubes compared to the weight of the supplied catalyst. Moreover the duration of the hydrogen pretreatment was also found to have different effects on the yield of nanotubes under different carrier gases.

Authors:
 [1];  [1];  [1];  [1];  [2];  [1]
  1. Chinese Academy of Sciences
  2. ORNL
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); High Temperature Materials Laboratory
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
OSTI Identifier:
931230
DOE Contract Number:
DE-AC05-00OR22725
Resource Type:
Journal Article
Resource Relation:
Journal Name: Diamond and Related Materials; Journal Volume: 16; Journal Issue: 2
Country of Publication:
United States
Language:
English
Subject:
08 HYDROGEN; CARBON; CATALYSTS; GASES; HYDROGEN; NANOTUBES; NITROGEN; PRODUCTION

Citation Formats

You, Yu Jing, Qu, Mei Zhen, Zhou, Gu Min, Lin, Hao Qiang, Howe, Jane Y, and Yu, Zuo Long. Growth of thin carbon nanotubes on MoCoMgO catalyst. United States: N. p., 2007. Web. doi:10.1016/j.diamond.2006.05.006.
You, Yu Jing, Qu, Mei Zhen, Zhou, Gu Min, Lin, Hao Qiang, Howe, Jane Y, & Yu, Zuo Long. Growth of thin carbon nanotubes on MoCoMgO catalyst. United States. doi:10.1016/j.diamond.2006.05.006.
You, Yu Jing, Qu, Mei Zhen, Zhou, Gu Min, Lin, Hao Qiang, Howe, Jane Y, and Yu, Zuo Long. Mon . "Growth of thin carbon nanotubes on MoCoMgO catalyst". United States. doi:10.1016/j.diamond.2006.05.006.
@article{osti_931230,
title = {Growth of thin carbon nanotubes on MoCoMgO catalyst},
author = {You, Yu Jing and Qu, Mei Zhen and Zhou, Gu Min and Lin, Hao Qiang and Howe, Jane Y and Yu, Zuo Long},
abstractNote = {Thin carbon nanotubes were synthesized by catalytic decomposition of CH{sub 4} over MoCoMgO catalyst. We obtained bundles of ordered nanotubes under hydrogen gas and disordered nanotubes under nitrogen gas over the same catalyst. The formation mechanism of nanotube bundles was discussed. The number of the tube walls was 2-5 with the corresponding diameters of 3-6 nm. We obtained a high production yield of 500 wt.% for the thin carbon nanotubes compared to the weight of the supplied catalyst. Moreover the duration of the hydrogen pretreatment was also found to have different effects on the yield of nanotubes under different carrier gases.},
doi = {10.1016/j.diamond.2006.05.006},
journal = {Diamond and Related Materials},
number = 2,
volume = 16,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2007},
month = {Mon Jan 01 00:00:00 EST 2007}
}