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Updated: Dec 21, 2025
Fluid-cell Raman Spectroscopy for operando Studies of Reaction and Transport Phenomena during Silicate Glass Corrosion
Published on: May 9, 2025
Structural variations of germanosilicate glasses with change in modifier cation type or Ge/Si ratio
N M Korobatova1, O N Koroleva1
1Institute of Mineralogy SU FRC MG UB RAS, Miass, Ilmen Reserve 456317, Russian Federation.
Abstract:
Raman spectroscopy was used to study glasses of three-component systems M2O-SiO2-GeO2, where M = Li, Na, K. Following the decomposition of spectra into component lines, the main structural units of both the germanate and silicate networks were determined according to peak-fitting result. With addition of germanium oxide, a change in the structure of the silicate network system was observed. In revealing highly-coordinated germanium atoms in all synthesised glasses, the study also established the dependence of their quantity on GeO2 content and modifier cation type.
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