Mo K-edge XAFS in Na2O-K2O-SiO2 glasses

N. Sawaguchi, T. Yokokawa, K. Kawamura

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

The XAFS spectra of the Mo K-edge were investigated regarding molybdenum ions in sodium potassium silicate glasses. In all the measured glasses the molybdenum ions are considered to be in the 6+ oxidation state. We evaluated the Mo-O correlation and concluded that Mo6+ ion forms the MoO42- tetrahedron. The Mo-O distance is approximately 0.177 nm. This configuration is stable in the investigated composition range. The results indicate that the MoO42- tetrahedra are located outside the Si-O network anions. These MoO42- characteristics were discussed with the acid-base concept of the oxide glasses.

Original languageEnglish
Pages (from-to)13-18
Number of pages6
JournalPhysics and Chemistry of Glasses
Volume37
Issue number1
Publication statusPublished - 1996
Externally publishedYes

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Molybdenum
Ions
tetrahedrons
Glass
molybdenum
glass
potassium silicates
Silicates
sodium silicates
ions
Oxides
Anions
Potassium
Negative ions
Sodium
anions
Oxidation
oxidation
acids
Acids

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Ceramics and Composites

Cite this

Sawaguchi, N., Yokokawa, T., & Kawamura, K. (1996). Mo K-edge XAFS in Na2O-K2O-SiO2 glasses. Physics and Chemistry of Glasses, 37(1), 13-18.

Mo K-edge XAFS in Na2O-K2O-SiO2 glasses. / Sawaguchi, N.; Yokokawa, T.; Kawamura, K.

In: Physics and Chemistry of Glasses, Vol. 37, No. 1, 1996, p. 13-18.

Research output: Contribution to journalArticle

Sawaguchi, N, Yokokawa, T & Kawamura, K 1996, 'Mo K-edge XAFS in Na2O-K2O-SiO2 glasses', Physics and Chemistry of Glasses, vol. 37, no. 1, pp. 13-18.
Sawaguchi N, Yokokawa T, Kawamura K. Mo K-edge XAFS in Na2O-K2O-SiO2 glasses. Physics and Chemistry of Glasses. 1996;37(1):13-18.
Sawaguchi, N. ; Yokokawa, T. ; Kawamura, K. / Mo K-edge XAFS in Na2O-K2O-SiO2 glasses. In: Physics and Chemistry of Glasses. 1996 ; Vol. 37, No. 1. pp. 13-18.
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