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Fabrication of Layered Niobium Oxysulfide and Investigation of Structural and Elemental Composition

Published online by Cambridge University Press:  26 February 2011

Kazuyoshi Izawa ,
Shintaro Ida ,
Ugur Unal ,
Tomoki Yamaguchi  and
Yasumichi Matsumoto
Kazuyoshi Izawa
Affiliation:
[email protected], Kumamoto University, Department of Graduate School of Science and Technology, Kurokami 2-39-1, Kumamoto, 860-8555, Japan, +81-96-342-3659
Shintaro Ida
Affiliation:
[email protected], Kumamoto University, Department of Nano Science and Technology, Graduate School of Science and Technology, 2-39-1 Kurokami, Kumamoto, 860-8555, Japan
Ugur Unal
Affiliation:
[email protected], Kumamoto University, Department of Nano Science and Technology, Graduate School of Science and Technology, 2-39-1 Kurokami, Kumamoto, 860-8555, Japan
Tomoki Yamaguchi
Affiliation:
[email protected], Kumamoto University, Department of Nano Science and Technology, Graduate School of Science and Technology, 2-39-1 Kurokami, Kumamoto, 860-8555, Japan
Yasumichi Matsumoto
Affiliation:
[email protected], Kumamoto University, Department of Nano Science and Technology, Graduate School of Science and Technology, 2-39-1 Kurokami, Kumamoto, 860-8555, Japan
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Abstract

The layered niobium oxysulfide was synthesized by the heat treatment of K4Nb6O17 · 3H2O layered oxide in the mixture of H2S/N2 gases. The layered oxysulfide had the large plate-like shape, and the total ratio of compound was estimated KxNbS2-yOy (The number of x was from 0.2 to 0.4, y was from about 0.5 to 1.0). According to the XPS measurement, the oxidation state of Nb was estimated for +2, +4, +5, and oxidation state of S was -2. It was confirmed that the layered oxysulfide has ion exchange, and intercalation capabilities as proton exchange reactions take place in H2SO4 solution and bulky amine molecules can be intercalated in an amine solution.

Keywords

layeredNbintercalation
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 988: Symposium QQ – Solid-State Chemistry of Inorganic Materials VI , 2006 , 0988-QQ03-15
Copyright
Copyright © Materials Research Society 2007

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References

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