نتایج جستجو برای: mesoporous silicon

تعداد نتایج: 90178  

Journal: :Solid state nuclear magnetic resonance 2009
Jörg Frey Yean Sang Ooi Bejoy Thomas V R Reddy Marthala Arne Bressel Thomas Schölkopf Thomas Schleid Michael Hunger

SBA-15 was utilized as mesoporous support for the dispersion of vanadium phosphate (VPO) compounds. Loading of SBA-15 with VPO compounds was found to be accompanied by decreasing (29)Si MAS NMR signals of Q(2) (Si(2Si,2OH)) and Q(3) (Si(3Si,1OH)) silicon species, which indicates coverage of the mesoporous support by the guest compounds. The (51)V MAS NNR spectra of the activated VPO/SBA-15 cata...

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