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Title: A facile preparation of nanocrystalline Mo{sub 2}C from graphite or carbon nanotubes

Abstract

Nanocrystalline Mo{sub 2}C powders were successfully synthesized at 500 deg. C by reacting molybdenum chloride (MoCl{sub 5}) 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 Mo{sub 2}C powder consists of particles of 30{approx}100 nm, with a surface area of 2.311 m{sup 2}/g. When carbon nanotubes were used as C source, the as-synthesized Mo{sub 2}C sample is composed of particles of 20{approx}50 nm, with a surface area of 23.458 m{sup 2}/g, which is an order of magnitude larger than that of the carbide prepared from the graphite. -- Graphical abstract: Nanocrystalline Mo{sub 2}C powders were successfully synthesized at 500 deg. C by reacting MoCl{sub 5} with C (graphite or carbon nanotubes) in metallic sodium medium.

Authors:
 [1];  [2];  [1];  [1];  [1];  [1];  [3]
  1. Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026 (China)
  2. (China)
  3. Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026 (China). E-mail: zehengy@mail.ustc.edu.cn
Publication Date:
OSTI Identifier:
20784826
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Solid State Chemistry; Journal Volume: 179; Journal Issue: 1; Other Information: DOI: 10.1016/j.jssc.2005.09.037; PII: S0022-4596(05)00442-1; Copyright (c) 2005 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; GRAPHITE; MOLYBDENUM CARBIDES; MOLYBDENUM CHLORIDES; NANOTUBES; SODIUM; SURFACE AREA; SYNTHESIS; TRANSMISSION ELECTRON MICROSCOPY; X-RAY DIFFRACTION; X-RAY PHOTOELECTRON SPECTROSCOPY

Citation Formats

Yang Zeheng, School of Chemical Engineering, Hefei University of Technology, Hefei, Anhui 230009, Cai Peijun, Shi Liang, Gu Yunle, Chen Luyang, and Qian Yitai. A facile preparation of nanocrystalline Mo{sub 2}C from graphite or carbon nanotubes. United States: N. p., 2006. Web. doi:10.1016/j.jssc.2005.09.037.
Yang Zeheng, School of Chemical Engineering, Hefei University of Technology, Hefei, Anhui 230009, Cai Peijun, Shi Liang, Gu Yunle, Chen Luyang, & Qian Yitai. A facile preparation of nanocrystalline Mo{sub 2}C from graphite or carbon nanotubes. United States. doi:10.1016/j.jssc.2005.09.037.
Yang Zeheng, School of Chemical Engineering, Hefei University of Technology, Hefei, Anhui 230009, Cai Peijun, Shi Liang, Gu Yunle, Chen Luyang, and Qian Yitai. Sun . "A facile preparation of nanocrystalline Mo{sub 2}C from graphite or carbon nanotubes". United States. doi:10.1016/j.jssc.2005.09.037.
@article{osti_20784826,
title = {A facile preparation of nanocrystalline Mo{sub 2}C from graphite or carbon nanotubes},
author = {Yang Zeheng and School of Chemical Engineering, Hefei University of Technology, Hefei, Anhui 230009 and Cai Peijun and Shi Liang and Gu Yunle and Chen Luyang and Qian Yitai},
abstractNote = {Nanocrystalline Mo{sub 2}C powders were successfully synthesized at 500 deg. C by reacting molybdenum chloride (MoCl{sub 5}) 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 Mo{sub 2}C powder consists of particles of 30{approx}100 nm, with a surface area of 2.311 m{sup 2}/g. When carbon nanotubes were used as C source, the as-synthesized Mo{sub 2}C sample is composed of particles of 20{approx}50 nm, with a surface area of 23.458 m{sup 2}/g, which is an order of magnitude larger than that of the carbide prepared from the graphite. -- Graphical abstract: Nanocrystalline Mo{sub 2}C powders were successfully synthesized at 500 deg. C by reacting MoCl{sub 5} with C (graphite or carbon nanotubes) in metallic sodium medium.},
doi = {10.1016/j.jssc.2005.09.037},
journal = {Journal of Solid State Chemistry},
number = 1,
volume = 179,
place = {United States},
year = {Sun Jan 15 00:00:00 EST 2006},
month = {Sun Jan 15 00:00:00 EST 2006}
}