Nano-materials are of interest in the field of energy conversion and storage due to properties not seen for the bulk. However, due to their non-periodic nature, the atomic structures of nano-materials are not easily studied and thus are poorly understood. The real-space fitting approach via the total scattering is a way forward. The aim of this proposal is to combine the low-Q and high-Q data obtained from NIMROD for a study of Li-doped titania nano-particles, and to use the Reverse Monte Carlo method to build atomic models.