We suggest to perform QENS and fixed energy scan experiments as a function of the temperature to probe the dynamics of 4 different protic ionic liquids (PILs) with an unchanged cation and varying the anion. The series of samples has been selected to change the H-bond interaction between the cation and anion. The aims of our experiment are the following: First we want to study the global dynamics of the cation (TEA, triethylammonium, partially deuterated samples), second we want to investigate the cation's ethyl chain dynamics, and third we want to understand the hydrogen bond dynamics between the cation and the various anions. To accomplish these objectives, we propose to combine results obtained with IN5 and IN16B, respectively.