Paper Titles
New Strategy toward Novel Hyperbranched Phenol-Formaldehyde Resin: Synthesis, Characterization and Curing Study
p.177
The Use of Aqueous Urea as Chemical Denaturant in Processing CGM into a Biodegradable Polymer Material
p.181
Production of High Purity Alumina and Zeolite from Low-Grade Kaolin
p.187
Control of Shell Thickness in Silica-Coating of AgI Nanoparticles
p.191
Triethanolamine Molybdate, a New Polymeric Precursor for Molybdenum Nitride
p.195
Polycondensation of Urea and Boric Acid to Give Polyborate Ester, a Precursor for Boron Nitride
p.199
Processing of Mullite Whiskers from Kaolin
p.203
Joining of Ceramic Components in the Green State via LPIM
p.207
Synthesis and Characterisation of Titania Nanotubes: Effect of Phase and Crystallite Size on Nanotube Formation
p.211

Triethanolamine Molybdate, a New Polymeric Precursor for Molybdenum Nitride

Article Preview

Abstract:

Nitrides remain a relatively unexplored class of materials primarily due to the difficulties associated with their synthesis and characterization. Several synthetic routes, including high temperature reactions, microwave assisted synthesis, and the use of plasmas, to prepare binary and ternary nitrides have been explored. Transition metal nitrides form a class of materials with unique physical properties, which give them varied applications, as high temperature ceramics, magnetic materials, superconductors or catalysts. They are commonly prepared by high temperature conventional processes, but alternative synthetic approaches have also been explored, more recently, which utilize moderate temperature condition. Transition metal nitrides particularly, molybdenum nitride, niobium nitride, and tungsten nitride have important applications as catalyst in hydrodenitridation reactions. These nitrides have been traditionally synthesized using high temperature nitridation treatments of the oxides. The nitridation temperatures are very high (> 800- 1000 oC). The aim of our work is to synthesize molybdenum nitride by a simple, low-temperature route. The method involves pyrolysis of a polymeric precursor, which was prepared from the condensation reaction between triethanolamine and molybdic acid. The melting point of the product is 180oC. The polymeric precursor and its pyrolyzed products are characterized by Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD). X-ray diffraction shows that molybdenum nitride (MoN) obtained from this method has hexagonal crystal structure. MoN is obtained by this method at very low temperature (~ 400 oC).

You might also be interested in these eBooks
Advanced Materials and Processing IV View Preview

Info:

Periodical:

Advanced Materials Research (Volumes 29-30)

Pages:

195-198

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.29-30.195

Citation:

Cite this paper

Online since:

November 2007

Authors:

S. Mondal, A.K. Banthia

Keywords:

Molybdenum Nitride, Polymeric Precursor, Pyrolysis, Triethanolamine Molybdate

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2007 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] X. Zhao, and K. -J. Range, Journal of Alloys and Compounds, Vol. 296, 1-2, (2000), p.72.

Google Scholar

[2] Y. Nishi, J Mater Sci Lett, Vol. 6, (1987) p.1450.

Google Scholar

[3] G. Hagg, Z Physik. Chem. B, Vol. 7, (1930) p.339.

Google Scholar

[4] M. A. Sriram, P. N. Kumta, and E. I. Ko, Chemistry of Materials", Vol. 7, 5, (1995) p.859.

Google Scholar

[5] H. -T. Chiu, S.H. Chuang, S. -H. Lee, Gene-Hsiang; Peng, Shie-Ming., Advanced Materials, Weinheim, Germany, Vol. 10(17), (1998) p.1475.

Google Scholar

[6] Marchand, Roger; Tessier, Franck; DiSalvo, Francis J.; Journal of Materials Chemistry, 9, 1, (1999) p.297.

Google Scholar

[7] K. S. Weil, and P.N. Kumta, Materials & Design, Vol. 22(7), (2001) p.605.

Google Scholar

[8] K. S. Weil, and P.N. Kumta, , Materials Research Society Symposium Proceedings, 495 (Chemical Aspects of Electronic Ceramics Processing), (1998) p.227.

Google Scholar

[9] L Andrew, and M. Zhou, J. Phys. Chem. A, Vol. 103, (1999) p.4167 2θ d(A 0) hkl.

Google Scholar

[12] 9 6. 85.

Google Scholar

[23] 5 3. 78 101.

Google Scholar

[25] 85 3. 44.

Google Scholar

[27] 5 3. 24.

Google Scholar

[33] 9 2. 64.

Google Scholar

[35] 65 2. 51 200.

Google Scholar

[39] 1 2. 30.

Google Scholar

[45] 95 1. 97.

Google Scholar

[49] 45 1. 84 202.

Google Scholar

[64] 65 1. 44 220 2θ d(A 0) hkl.

Google Scholar

[12] 9 6. 85.

Google Scholar

[23] 45 3. 79 101.

Google Scholar

[25] 8 3. 45.

Google Scholar

[27] 62 3. 22.

Google Scholar

[29] 87 2. 99 002.

Google Scholar

[39] 1 2. 30.

Google Scholar

[46] 55 1. 95 202.

Google Scholar

[52] 98 1. 73 103.

Google Scholar

[59] 06 1. 56 301.

Google Scholar

[64] 79 1. 44 220.

Google Scholar

[67] 65 1. 38 311 Table 1. List of interplanar spacing (d) values for the compound pyrolyzed at 400 o C Table 2. List of interplanar spacing (d) values for the compound pyrolyzed at 800 o C.

Google Scholar