Use our NMR service that provides 29 Si NMR and many other NMR techniques. 29 Silicon NMR is a low sensitivity nucleus which has spin ½ and yields sharp lines (fig. 1). Where there is …

There are a number of aspects for running into difficulties in measuring silicon NMR. The first of it concerns the fact that silicon containing materials such as glass and ceramics constitute a …

May 29, 1996 · High-resolution solid-state NMR techniques were used to investigate the surface structure of Cab-O-Sil fumed silica. 1 H NMR results obtained from CRAMPS, MAS-only and …

Nov 1, 2013 · We report 1 H MAS NMR spectra of amorphous silica that allow us investigate the effect of temperature and particle size on the hydrogen contents, hydrogen bond strength, and …

Jan 1, 1996 · 29 Si solid-state NMR allows us to distinguish silicon atoms involved in siloxane bridges (Q 4), single silanol (Q 3) and geminal silanol groups (Q 2) on the surface of silica. …

May 14, 2019 · The CP/MAS 29 Si NMR spectrum of unreacted silica (Fig. 3 a) shows three signals with resolved peaks at − 91, − 100, and − 109 ppm.

Oct 23, 2018 · Here we show speciation changes among aqueous silicate complexes to pressures of 1.8 GPa through use of a high-pressure solution-state NMR probe. The …

We investigate 29 Si nuclear magnetic resonance (NMR) chemical shifts, δ iso, of silicon nitride. Our goal is to relate the local structure to the NMR signal and, thus, provide the means to …

Wide-Line NMR Studies of the Influence of Solvent Polarity on the Conformation and Dynamics of Silica-Immobilized Alkylamine and Alkylamide Ligands. Langmuir 1999 , 15 (20) , 6901-6907.

Quantitative silicon‐29 NMR investigations of highly concentrated high‐ratio sodium silicate solutions. Magnetic Resonance in Chemistry 1993, 31 (8) , 743-747. …