Dynamic nuclear polarization of quadrupolar nuclei using cross polarization from protons: surface-enhanced aluminium-27 NMR
The surface of gamma-alumina nanoparticles can be characterized by dynamic nuclear polarization (DNP) surface-enhanced NMR of Al-27. DNP is combined with cross-polarization and MQ-MAS to determine local symmetries of Al-27 sites at the surface.
Keywords: Angle-Spinning Nmr ; Quantum Mas Nmr ; Multiple-Quantum ; Gamma-Alumina ; Heterogeneous Catalysts ; Olefin Metathesis ; Exchange-Reaction ; Oxide Catalysts ; Hydroxyl-Groups ; Silica-Alumina
Record created on 2012-02-23, modified on 2016-08-09