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Title:
アルカリ金属を含むシリサイド組成物およびその製造方法
Document Type and Number:
Japanese Patent JP5138370
Kind Code:
B2
Abstract:
The invention relates to a method of making alkali metal silicide compositions, and the compositions resulting from the method, comprising mixing an alkali metal with silicon and heating the resulting mixture to a temperature below about 475 °C. The resulting compositions do not react with dry O 2 . Also, the invention relates to sodium silicide compositions having a powder X-ray diffraction pattern comprising at least three peaks with 2Theta angles selected from about 18.2, 28.5, 29.5, 33.7, 41.2, 47.4, and 56.2 and a solid state 23 Na MAS NMR spectra peak at about 18 ppm. Moreover, the invention relates to methods of removing a volatile or flammable substance in a controlled manner. Furthermore, the alkali metal silicide compositions of the invention react with water to produce hydrogen gas.

Inventors:
Michael LEFENFELD
James L. DYE
Application Number:
JP2007516608A
Publication Date:
February 06, 2013
Filing Date:
June 14, 2005
Export Citation:
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Assignee:
SIGNA CHEMISTRY LLC
International Classes:
C01B33/06; C01B3/06; C01B3/08; F24V30/00
Domestic Patent References:
JP1249619A
JP5294608A
JP11293460A
JP2001335309A
JP2004099392A
JP2007520407A
JP2000327319A
Foreign References:
US6191059
WO2000017104A1
US6103403
Other References:
Daniel MAYERI, et al.,NMR study of the synthesis of alkyl-terminated silicon nanoparticles from the reaction of SiCl4 with the zintl salt, NaSi,Chem. Mater.,2001, Vol.13,pp.765-770
Jiliang HE, et al.,NMR and x-ray spectroscopy of sodium - silicon clathrates,J. Phys. Chem. B,2001, Vol.105,pp.3475-3485
A. SAVIN, et al.,Pseudopotential calculations on alkali silicide clusters with Si2 and Tetrahedral Si4 backbones,J. Am. Chem. Soc.,1988, Vol.110,pp.373-375
Attorney, Agent or Firm:
Mitsuo Tanaka
Takuji Yamada
Muneo Yamamoto