Influence of temperature and time on the stability of silver in silica sol-gel glasses

1997 ◽  
Vol 8 (1-3) ◽  
pp. 917-921 ◽  
Author(s):  
B. Ritzer ◽  
M. A. Villegas ◽  
J. M. Fernández Navarro
Keyword(s):  
Sol Gel ◽  
Silica Sol ◽  
Influence Of Temperature ◽  
The Stability ◽  
Gel Glasses

Enhancement of Uranyl Adsorption Capacity and Selectivity on Silica Sol−Gel Glasses via Molecular Imprinting

1997 ◽  
Vol 9 (11) ◽  
pp. 2521-2525 ◽  
Author(s):  
Sheng Dai ◽  
Y. S. Shin ◽  
C. E. Barnes ◽  
L. M. Toth
Keyword(s):  
Adsorption Capacity ◽  
Molecular Imprinting ◽  
Sol Gel ◽  
Silica Sol ◽  
Gel Glasses

Cooperative energy transfer in Yb3+–Tb3+ codoped silica sol-gel glasses

2001 ◽  
Vol 89 (5) ◽  
pp. 2520-2524 ◽  
Author(s):  
I. R. Martı́n ◽  
A. C. Yanes ◽  
J. Méndez-Ramos ◽  
M. E. Torres ◽  
V. D. Rodrı́guez
Keyword(s):  
Energy Transfer ◽  
Sol Gel ◽  
Silica Sol ◽  
Gel Glasses ◽  
Cooperative Energy

Ionic diffusion in silica sol–gel glasses

2014 ◽  
Vol 120 ◽  
pp. 189-192
Author(s):  
Marta S. Fellows Olteanu ◽  
Michael J. McIntire ◽  
Patrick M. Lloyd ◽  
Aaron M. Chronister ◽  
Eric L. Chronister
Keyword(s):  
Sol Gel ◽  
Silica Sol ◽  
Ionic Diffusion ◽  
Gel Glasses

Spectroscopy and optical properties of HITC-doped silica sol–gel glasses

1999 ◽  
Vol 13 (1) ◽  
pp. 17-25 ◽  
Author(s):  
Francisco del Monte ◽  
David Levy
Keyword(s):  
Optical Properties ◽  
Sol Gel ◽  
Silica Sol ◽  
Gel Glasses

scholarly journals Dynamics of Proteins Encapsulated in Silica Sol−Gel Glasses Studied with IR Vibrational Echo Spectroscopy

2006 ◽  
Vol 128 (12) ◽  
pp. 3990-3997 ◽  
Author(s):  
Aaron M. Massari ◽  
Ilya J. Finkelstein ◽  
Michael D. Fayer
Keyword(s):  
Sol Gel ◽  
Silica Sol ◽  
Gel Glasses ◽  
Vibrational Echo

Luminescence properties of Cr-doped silica sol gel glasses

1997 ◽  
Author(s):  
Wieslaw Strek ◽  
Edward Lukowiak ◽  
Przemyslaw J. Deren ◽  
K. Maruszewski ◽  
Ib Trabjerg ◽  
...  
Keyword(s):  
Sol Gel ◽  
Silica Sol ◽  
Luminescence Properties ◽  
Gel Glasses

Fundamental Science of f-Elements in Selected Immobilization Glasses: Significance for TRU Disposal Schemes

1997 ◽  
Vol 506 ◽  
Author(s):  
R. G. Haire ◽  
Z. Assefa ◽  
N. Stump
Keyword(s):  
High Temperature ◽  
Materials Science ◽  
Sol Gel ◽  
Oxidation States ◽  
Melting Points ◽  
The Third ◽  
Oxidation Potentials ◽  
The Stability ◽  
Gel Glasses ◽  
Glass Matrices

ABSTRACTWe have investigated certain aspects of the fundamental chemistry and materials science of the 4fand several 5f-elements in three glass matrices. Two of these matrices were high-temperature (850° and 1450°C melting points) silicate-based glasses and the third was a sol-gel glass. Optical spectroscopy was the principal investigating tool. One aspect of the work here was to ascertain the oxidation state exhibited by these elements in the different glasses, as well as the factors that control and/or may alter this state. An important finding was noting a general correlation between the oxidation states obtained in the two high-temperature glasses and those observed in the oxides of these elements. Of the twenty three f-elements considered here, only three exceptions (Ce, Am and Bk) or examples of variable behavior (Pr, Tb, U and Cf) to this correlation were noted. One explanation offered for the exceptions is based on the stability afforded by the oxides' fluorite lattice. The correlation also applied to the sol-gel glasses after they had been heated. Other oxidation states for some elements could be obtained in the sol-gel glasses prepared at 25°C. Presented here is a summary of the oxidation states observed for these elements in three glass matrices and how these states correlate with those observed in the oxides of these elements and with the relative oxidation potentials for the elements.

Spectroscopic studies of chromium-doped silica sol–gel glasses

2001 ◽  
Vol 288 (1-3) ◽  
pp. 56-65 ◽  
Author(s):  
W. Stręk ◽  
P.J. Dereń ◽  
E. Łukowiak ◽  
J. Hanuza ◽  
H. Drulis ◽  
...  
Keyword(s):  
Sol Gel ◽  
Spectroscopic Studies ◽  
Silica Sol ◽  
Gel Glasses
Sign in / Sign up

Export Citation Format

Share Document