The Ames Laboratory has a unique concentration of solid-state NMR expertise. Developments will include techniques that allow for studies under ultrafast magic angle spinning and at variable-temperature from 0.05-500 K; measurement of sideband-free spectra of high-Z spin-1/2 nuclei such as 125Te, 207Pb, 119Sn, 113Cd, and 195Pt; utilization of gradients for selective excitation and coherence control; and exploration of new methods for increasing nuclear polarization.
We will advance a technique that uses microwave irradiation to polarize unpaired electrons and transfer the polarization to the nuclei. This technique, known as dynamic nuclear polarization (DNP), provides unique capabilities in the US for studies of catalysts, biomolecular materials and inorganic materials relevant to the DOE mission. Instrumentation advances such as aberration correction for TEMs have been exceptional in terms of the toolsâ€™ scientific impact, and DNP promises to be similarly transformative for solid-state NMR. This technique is a game-changer because of its signal enhancement factors.