My research emphasizes the use of synchrotron x-ray light sources to study problems in basic, applied, and environmental energy science. This includes experiments on materials for battery electrodes, supercapacitors, photovoltaic cells, actinide fuels for fission reactors, and catalysts for both hydrocarbon cracking and for fuel cells. My group also plays an important role in the development of new x-ray spectroscopies for general users of the Department of Energy light sources, including especially instrument development for inelastic x-ray scattering and x-ray emission spectroscopy.