RTLE	Rhus typhina L. leaves extract
HPLC-DAD	High-performance liquid chromatography with diode-array detection
LC-MS	Liquid chromatography–mass spectrometry
SEM	Scanning electron microscope
EDX	Energy dispersive X-ray analysis
GCI	Green corrosion inhibitors
OCP	Open circuit potential
EIS	Electrochemical impedance spectroscopy
PDP	Potentiodynamic polarization
XPS	X-ray photoelectron spectroscopy
AFM	Atomic force microscopy
RefE	reference electrode
WE	working electrode OL7
CE	platinum sheet counter electrode.