2-Amino-5-(4-pyridinyl)-1,3,4-thiadiazole monolayers on copper surface: Observation of the relationship between its corrosion inhibition and adsorption structure

- 2-Amino-5-(4-pyridinyl)-1,3,4-thiadiazole (4-APTD) was modified at copper surface.
- 4-APTD film was proved to protect copper electrode from corrosion in KCl solution.
- SERS analysis found adsorption of 4-APTD on copper surface was via N3 and N12 atoms.