期刊
MAGNETIC RESONANCE IN CHEMISTRY
卷 45, 期 2, 页码 118-122出版社
WILEY
DOI: 10.1002/mrc.1927
关键词
Si-29; Al-27; H-1; C-13 MAS NMR; paramagnetic solids; T-1 relaxation; porous materials
The paramagnetic Si/Al material doped with 19.8% (weight) of Mn2+ has been characterized by the H-1, C-13, Al-27, Si-29 MAS NMR spectra and the H-1 Si-29 T(1)MAS relaxation measurements as a gel dried at 130 degrees C and as samples calcined at 504, 540 and 650 degrees C. It has been demonstrated that in spite of strong paramagnetic effects, NMR monitoring in combination with Si-29 T, relaxation experiments can be successful for structural descriptions of porous materials. Copyright (c) 2006 John Wiley & Sons, Ltd.
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