Several groups have studied and reported the effects of individual parameters on the final microstructure and electrochemical properties of PEMFC CLs. This includes but is not exclusive to, studies quantifying the effects of catalyst supports , , , , solvent composition , , , ionomer type , , , dispersion methods , , . Many of these findings have also been reproduced and backed by simulations on various scales. For example, identified the influence of Platinum content on ionomer conformation . Similarly, Liu et al. developed a model to represent Pt/C particle aggregation in the presence of various solvents .