Table 1. Parameters of the Ink Formulations and the Resulting Catalyst Layers.

	ex situ NNMC	ex situ Pt/C	in situ Pt/C
thickness [μm]	32	5	77
active area [cm2]	1	1	0.145
ionomer-to-carbon mass ratio (ICR) [−]	0.2	0.6	0.33
catalyst-loading [mgPt/cm2]/[mgNNMC/cm2]	0.8	0.26	1.43
Pt vol. fraction [%]	0	2.44	0.85
carbon vol. fraction [%]	11	28	20
ionomer vol. fraction [%]	3	18	7
total solid fraction [%]	14	48	28
porosity [%]	86	52	72