Monday, July 23, 2018

Direct (17)O dynamic nuclear polarization of single-site heterogeneous catalysts #DNPNMR

Perras, F. A., K. C. Boteju, Slowing, A. D. Sadow, and M. Pruski. “Direct (17)O Dynamic Nuclear Polarization of Single-Site Heterogeneous Catalysts.” Chem Commun (Camb) 54 (April 3, 2018): 3472–75.

We utilize direct 17O DNP for the characterization of non-protonated oxygens in heterogeneous catalysts. The optimal sample preparation and population transfer approach for 17O direct DNP experiments performed on silica surfaces is determined and applied to the characterization of Zr- and Y-based mesoporous silica-supported single-site catalysts.