Sol–gel chemistry synthesis and DTA–TGA, XRPD, SIC and 7Li, 31P, 29Si MAS–NMR studies on the Li-NASICON Li3Zr2−ySi2−4yP1+4yO12 (0⩽y⩽0.5) system

2013 ◽  
Vol 551 ◽  
pp. 267-273 ◽  
Author(s):  
W. Belam
Keyword(s):  
Sol Gel ◽  
Mas Nmr ◽  
29Si Mas Nmr ◽  
Nmr Studies

29Si MAS NMR studies of sol-gel-derived glasses in the Li2OSiO2 system

1990 ◽  
Vol 116 (2-3) ◽  
pp. 161-166 ◽  
Author(s):  
Ch. Wies ◽  
K. Meise-Gresch ◽  
W. Müller-Warmuth ◽  
W. Beier ◽  
U. Wellbrock ◽  
...  
Keyword(s):  
Sol Gel ◽  
Mas Nmr ◽  
29Si Mas Nmr ◽  
Nmr Studies ◽  
Sio2 System

29Si MAS NMR Studies of Degalliation of Ga–MFI Zeolite during Template Removal and Deammoniation

1998 ◽  
Vol 173 (1) ◽  
pp. 243-245 ◽  
Author(s):  
V.R. Choudhary ◽  
C. Sivadinarayana ◽  
A.K. Kinage
Keyword(s):  
Mas Nmr ◽  
29Si Mas Nmr ◽  
Mfi Zeolite ◽  
Nmr Studies ◽  
Template Removal

Structural Investigation of Sol-Gel-Derived Hybrid Siloxane-Oxide Materials Using 29Si MAS-NMR Spectroscopy

1992 ◽  
Vol 286 ◽  
Author(s):  
F. Babonneau ◽  
L. Bois ◽  
J. Livage ◽  
S. Dire
Keyword(s):  
Single Phase ◽  
Structural Investigation ◽  
Sol Gel ◽  
Structural Models ◽  
Mas Nmr ◽  
Oxide Materials ◽  
29Si Mas Nmr ◽  
Oxide Systems ◽  
Oxide Component ◽  
Phase Systems

ABSTRACTHybrid siloxane-oxide systems were prepared by sol-gel techniques. Siloxane precursors are either monomeric species, dimethyldiethoxysilane, or OH-terminated polydimethylsiloxanes. The oxide component is introduced via metallic alkoxides, M(OR)n (M=Si, Ti, Zr). Transparent materials from flexible to brittle gels, can be obtained over a large M/siloxane range. The structure of the various systems was investigated by 29Si MAS-NMR. The signals due to the difunctional Si units, (CH3)2SiO, depend strongly on the nature of M and on the M/siloxane ratio. Structural models are proposed, ranging from single phase systems with highly interconnected siloxane and oxide units, to nanocomposites made of polysiloxane chains crosslinked with oxide-based particles.

XRD, TEM and 29Si MAS NMR study of sol-gel ZnO-SiO2 nanocomposites

1999 ◽  
Vol 9 (8) ◽  
pp. 1765-1769 ◽  
Author(s):  
Carla Cannas ◽  
Mariano Casu ◽  
Adolfo Lai ◽  
Anna Musinu ◽  
Giorgio Piccaluga
Keyword(s):  
Sol Gel ◽  
Mas Nmr ◽  
29Si Mas Nmr ◽  
Nmr Study ◽  
Sio2 Nanocomposites

Alkali activation of reactive silicas in cements: in situ 29Si MAS NMR studies of the kinetics of silicate polymerization

1996 ◽  
Vol 31 (13) ◽  
pp. 3365-3373 ◽  
Author(s):  
A. R. Brough ◽  
C. M. Dobson ◽  
I. G. Richardson ◽  
G. W. Groves
Keyword(s):  
Mas Nmr ◽  
Alkali Activation ◽  
29Si Mas Nmr ◽  
Nmr Studies ◽  
Kinetics Of

scholarly journals 29Si-MAS NMR Studies of Hydrothermal Dealumination of Zeolite ZSM-20.

1990 ◽  
Vol 44 ◽  
pp. 519-521 ◽  
Author(s):  
Michael Stöcker ◽  
Stefan Ernst ◽  
Hellmut G. Karge ◽  
Jens Weitkamp ◽  
Trond Brekke ◽  
...  
Keyword(s):  
Mas Nmr ◽  
29Si Mas Nmr ◽  
Nmr Studies ◽  
Hydrothermal Dealumination
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