We propose both, quasielastic as well as inelastic neutron scattering experiments to study the dynamics of the protic ionic liquid TEA-Tf (triethylammonium-triflate). The aim of the proposed quasielastic experiments are as follows: first we intend to study the global dynamics of the TEA-cation, second we want to investigate the ethyl-chain dynamics and finally, we want to understand the hydrogen-bond dynamics between cation and the corresponding anion.Finally we want to perform experiments in order to investigate the DOS (generalized vibrational density of states) of the corresponding liquids. The aim of these experiments is to study the contributions of different parts of the cation / anion; in collaboration with Prof. Buchner from the University of Regensburg we will compare the outcome of the intended experiment with corresponding results from dielectric spectroscopy.