A facile preparation of nanocrystalline Mo2C from graphite or carbon nanotubes

Zeheng Yang; Peijun Cai; Liang Shi; Yunle Gu; Luyang Chen; Yitai Qian

doi:10.1016/j.jssc.2005.09.037

A facile preparation of nanocrystalline Mo₂C from graphite or carbon nanotubes

Zeheng Yang, Peijun Cai, Liang Shi, Yunle Gu, Luyang Chen, Yitai Qian

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

22 Citations (Scopus)

Abstract

Nanocrystalline Mo₂C powders were successfully synthesized at 500 °C by reacting molybdenum chloride (MoCl₅) with C (graphite or carbon nanotube) in metallic sodium medium. X-ray powder diffractometer (XRD), transmission electron microscope (TEM), X-ray photoelectron spectroscope (XPS) and surface area analyzer (BET method) were used to characterize the samples. Experiments reveal that the carbon source used for the carbide synthesis has a great effect on the particle size and the surface area of the samples. When micro-sized graphite was used as C source the obtained nanocrystalline Mo₂C powder consists of particles of 30∼100 nm, with a surface area of 2.311 m²/g. When carbon nanotubes were used as C source, the as-synthesized Mo₂C sample is composed of particles of 20∼50 nm, with a surface area of 23.458 m²/g, which is an order of magnitude larger than that of the carbide prepared from the graphite.

Original language	English
Pages (from-to)	29-32
Number of pages	4
Journal	Journal of Solid State Chemistry
Volume	179
Issue number	1
DOIs	https://doi.org/10.1016/j.jssc.2005.09.037
Publication status	Published - 2006 Jan

Keywords

Chemical synthesis
Molybdenum carbide
Nanoparticle
Surface area
Transmission electron microscopy

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Condensed Matter Physics
Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

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10.1016/j.jssc.2005.09.037

Cite this

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title = "A facile preparation of nanocrystalline Mo2C from graphite or carbon nanotubes",

abstract = "Nanocrystalline Mo2C powders were successfully synthesized at 500 °C by reacting molybdenum chloride (MoCl5) with C (graphite or carbon nanotube) in metallic sodium medium. X-ray powder diffractometer (XRD), transmission electron microscope (TEM), X-ray photoelectron spectroscope (XPS) and surface area analyzer (BET method) were used to characterize the samples. Experiments reveal that the carbon source used for the carbide synthesis has a great effect on the particle size and the surface area of the samples. When micro-sized graphite was used as C source the obtained nanocrystalline Mo2C powder consists of particles of 30∼100 nm, with a surface area of 2.311 m2/g. When carbon nanotubes were used as C source, the as-synthesized Mo2C sample is composed of particles of 20∼50 nm, with a surface area of 23.458 m2/g, which is an order of magnitude larger than that of the carbide prepared from the graphite.",

keywords = "Chemical synthesis, Molybdenum carbide, Nanoparticle, Surface area, Transmission electron microscopy",

author = "Zeheng Yang and Peijun Cai and Liang Shi and Yunle Gu and Luyang Chen and Yitai Qian",

note = "Funding Information: We would thank Prof. Z.L. Yu of the Institute of Chengdu Organic Chemistry of Chinese Academy of Sciences for providing the carbon nanotubes. This work was supported by the Key Project of National Fundamental Research and the National Natural Science Foundation of China. Copyright: Copyright 2008 Elsevier B.V., All rights reserved.",

year = "2006",

month = jan,

doi = "10.1016/j.jssc.2005.09.037",

language = "English",

volume = "179",

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T1 - A facile preparation of nanocrystalline Mo2C from graphite or carbon nanotubes

AU - Yang, Zeheng

AU - Cai, Peijun

AU - Shi, Liang

AU - Gu, Yunle

AU - Chen, Luyang

AU - Qian, Yitai

N1 - Funding Information: We would thank Prof. Z.L. Yu of the Institute of Chengdu Organic Chemistry of Chinese Academy of Sciences for providing the carbon nanotubes. This work was supported by the Key Project of National Fundamental Research and the National Natural Science Foundation of China. Copyright: Copyright 2008 Elsevier B.V., All rights reserved.

PY - 2006/1

Y1 - 2006/1

N2 - Nanocrystalline Mo2C powders were successfully synthesized at 500 °C by reacting molybdenum chloride (MoCl5) with C (graphite or carbon nanotube) in metallic sodium medium. X-ray powder diffractometer (XRD), transmission electron microscope (TEM), X-ray photoelectron spectroscope (XPS) and surface area analyzer (BET method) were used to characterize the samples. Experiments reveal that the carbon source used for the carbide synthesis has a great effect on the particle size and the surface area of the samples. When micro-sized graphite was used as C source the obtained nanocrystalline Mo2C powder consists of particles of 30∼100 nm, with a surface area of 2.311 m2/g. When carbon nanotubes were used as C source, the as-synthesized Mo2C sample is composed of particles of 20∼50 nm, with a surface area of 23.458 m2/g, which is an order of magnitude larger than that of the carbide prepared from the graphite.

AB - Nanocrystalline Mo2C powders were successfully synthesized at 500 °C by reacting molybdenum chloride (MoCl5) with C (graphite or carbon nanotube) in metallic sodium medium. X-ray powder diffractometer (XRD), transmission electron microscope (TEM), X-ray photoelectron spectroscope (XPS) and surface area analyzer (BET method) were used to characterize the samples. Experiments reveal that the carbon source used for the carbide synthesis has a great effect on the particle size and the surface area of the samples. When micro-sized graphite was used as C source the obtained nanocrystalline Mo2C powder consists of particles of 30∼100 nm, with a surface area of 2.311 m2/g. When carbon nanotubes were used as C source, the as-synthesized Mo2C sample is composed of particles of 20∼50 nm, with a surface area of 23.458 m2/g, which is an order of magnitude larger than that of the carbide prepared from the graphite.

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KW - Transmission electron microscopy

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