Growth of multi-walled carbon nanotubes on mechanical alloying-derived Al2O3-ni nanocomposite powder

B. Liu; Z. Zhong; J. Ding; J. Lin; Y. Shi; L. Si

doi:10.1039/b103770f

Growth of multi-walled carbon nanotubes on mechanical alloying-derived Al₂O₃-ni nanocomposite powder

B. Liu, Z. Zhong, J. Ding^*, J. Lin, Y. Shi, L. Si

^*Corresponding author for this work

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

6 Scopus citations

Abstract

Mechanical alloying was employed to produce the nanocomposite Al₂O₃-Ni. It was found that the mechanical alloying of a mixture of NiO and α-Al₂O₃ generated a highly disordered structure. Reduction under a hydrogen atmosphere led to formation of nano-sized Ni crystallites in the Al₂O₃ matrix. Relatively high BET specific surface areas indicate that the sub-micron nanocomposite particles have a porous structure. In comparison with the co-precipitated powder, the mechanical alloying-derived powder shows smaller particle/agglomerate size and much higher Ni reducibility. Multi-walled carbon nanotubes with a high production yield were successfully synthesized by using the mechanical alloying-derived nanocomposite as the catalyst.

Original language	English
Pages (from-to)	2523-2528
Number of pages	6
Journal	Journal of Materials Chemistry
Volume	11
Issue number	10
DOIs	https://doi.org/10.1039/b103770f
State	Published - 2001
Externally published	Yes

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title = "Growth of multi-walled carbon nanotubes on mechanical alloying-derived Al2O3-ni nanocomposite powder",

abstract = "Mechanical alloying was employed to produce the nanocomposite Al2O3-Ni. It was found that the mechanical alloying of a mixture of NiO and α-Al2O3 generated a highly disordered structure. Reduction under a hydrogen atmosphere led to formation of nano-sized Ni crystallites in the Al2O3 matrix. Relatively high BET specific surface areas indicate that the sub-micron nanocomposite particles have a porous structure. In comparison with the co-precipitated powder, the mechanical alloying-derived powder shows smaller particle/agglomerate size and much higher Ni reducibility. Multi-walled carbon nanotubes with a high production yield were successfully synthesized by using the mechanical alloying-derived nanocomposite as the catalyst.",

author = "B. Liu and Z. Zhong and J. Ding and J. Lin and Y. Shi and L. Si",

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T1 - Growth of multi-walled carbon nanotubes on mechanical alloying-derived Al2O3-ni nanocomposite powder

AU - Liu, B.

AU - Zhong, Z.

AU - Ding, J.

AU - Lin, J.

AU - Shi, Y.

AU - Si, L.

PY - 2001

Y1 - 2001

N2 - Mechanical alloying was employed to produce the nanocomposite Al2O3-Ni. It was found that the mechanical alloying of a mixture of NiO and α-Al2O3 generated a highly disordered structure. Reduction under a hydrogen atmosphere led to formation of nano-sized Ni crystallites in the Al2O3 matrix. Relatively high BET specific surface areas indicate that the sub-micron nanocomposite particles have a porous structure. In comparison with the co-precipitated powder, the mechanical alloying-derived powder shows smaller particle/agglomerate size and much higher Ni reducibility. Multi-walled carbon nanotubes with a high production yield were successfully synthesized by using the mechanical alloying-derived nanocomposite as the catalyst.

AB - Mechanical alloying was employed to produce the nanocomposite Al2O3-Ni. It was found that the mechanical alloying of a mixture of NiO and α-Al2O3 generated a highly disordered structure. Reduction under a hydrogen atmosphere led to formation of nano-sized Ni crystallites in the Al2O3 matrix. Relatively high BET specific surface areas indicate that the sub-micron nanocomposite particles have a porous structure. In comparison with the co-precipitated powder, the mechanical alloying-derived powder shows smaller particle/agglomerate size and much higher Ni reducibility. Multi-walled carbon nanotubes with a high production yield were successfully synthesized by using the mechanical alloying-derived nanocomposite as the catalyst.

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DO - 10.1039/b103770f

M3 - 文章

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SN - 0959-9428

VL - 11

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EP - 2528

JO - Journal of Materials Chemistry

JF - Journal of Materials Chemistry

IS - 10

ER -

Growth of multi-walled carbon nanotubes on mechanical alloying-derived Al₂O₃-ni nanocomposite powder

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