ATR	Attenuated total reflectance
CEM	Cation exchange membrane
CRM	Confocal Raman microscopy
CV	Cyclic voltammetry
DMAc	Dimethylacetamide
DMF	Dimethylformamide
DMSO	Dimethyl sulfoxide
EDX	Energy dispersive X-ray spectroscopy
EIS	Electrochemical impedance spectroscopy
FTIR	Fourier transform infrared spectroscopy
HFP	Hexafluoropropylene
H2O	Water
HFPO	Hexafluoropropylene oxide
LSV	Linear sweep voltammetry
NMR	Nuclear magnetic resonance
PEM	Proton exchange membrane
PEMFCs	Proton exchange membrane fuel cells
PES	Polyethersulfone
PFPEs	Perfluoropolyethers
PFSA	Perfluorosulfonic acid
PS	Polysulfone
PTFE	Polytetrafluoroethylene
PVDF	Polyvinylidene fluoride
SE	Secondary electron
TFE	Tetrafluoroethylene
VDF	Vinylidene fluoride
XRD	X-ray diffraction