Shock Wave Chemical Reactions; Synthesis of Carbon Nitrides

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A series of shock recovery experiments up to ~50 GPa were performed on reactions to form carbon nitrides. Nitrogen-rich starting materials, included a C-N-O amorphous precursor, dicyandiamide, melamine, and a mixture of carbon tetrahalide and sodium dicyanoamide, were used and the recovered samples were investigated by X-ray diffraction technique, elemental analysis, transmission electron microscopy and so on. Experimental results showed formation of a new carbon nitride, high stability of melamine up to a shock pressure of 37 GPa, and production of amorphous C-N materials with a highest N/C ration of 1.26 from the reaction between carbon tetrahalide and sodium dicyanoamide. We extended to the system C3N4-Si3N4 based on the recent results on synthesis of spinel-type nitrides. Shock wave chemical reactions provide a route for synthesizing novel materials including not only high-pressure phases but also metastable, unique substances.

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Edited by:

S. Itoh and K. Hokamoto

Pages:

125-128

Citation:

T. Sekine "Shock Wave Chemical Reactions; Synthesis of Carbon Nitrides", Materials Science Forum, Vol. 566, pp. 125-128, 2008

Online since:

November 2007

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$38.00

[1] E. Kroke and M. Schwarz: Coordin. Chem. Rev., 248 (2004), p.493.

[2] T. Sekine: Eur. J. Solid State Inorgan. Chem., 34 (1997), p.823.

[3] J. Liu, T. Sekine, and T. Kobayashi: Solid State Comm., 137 (2006), p.21.

[4] D.M. Teter and R.J. Hemley: Science 271 (1996), p.53.

[5] B. Jurgens, E. Irran, J. Senker, P. Kroll, H. Muller, and W. Schnick: J. Am. Chem. Soc., 125 (2003), p.10288.

[6] L. Costa and G. Camino: J. Term. Anal., 34 (1988), p.423.

[7] H.A. Ma, X.P. Jia, L.X. Chen, P.W. Zhu, W.L. Guo, X.B. Guo, Y.D. Wang, S.Q. Li, G.T. Zou, G. Zhang, and P. Bex: J. Phys.: Condens. Matter., 14 (2005), p.11269.

[8] K. Shibata and T. Sekine: Solid State Comm., 139 (2006), p.510.

[9] T. Sekine, X.J. Li, T. Soga, I. Tanaka, M. Schwartz, E. Kroke, and R. Riedel: Rev. High Pres. Sci. Tech., 13 (2003), p.71 (in Japanese).

[10] A. Zerr, R. Riedel, T. Sekine, J.E. Lowther, W. -Y. Ching, and I. Tanaka: Adv. Mater., 18 (2006), p.299.

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