Influence of Positional Isomeric Spacers of Naphthalene Derivatives on Ni-W Alloy Electrodeposition: Electrochemical and Microstructural Properties.

Herein, Ni-W alloy matrixes were successfully fortified with two salen-type Schiff bases 1-(()-(2-(()-(2-hydroxynaphthalen-1-yl)methyleneamino)phenylimino)methyl)naphthalen-2-ol (OPD) and 1-(()-(2-(()-(2-hydroxynaphthalen-1-yl)methyleneamino)phenylimino)methyl)naphthalen-2-ol (PPD) as additives, of similar molecular structure but varied isomeric spacers, using a facile direct current electrodeposition technique. The resulting coatings from the additive-introduced reaction system were termed as Ni-W/OPD and Ni-W/PPD throughout the study. The deterioration process (0.