Original scientific paper

THE INFLUENCE OF POLYACRYLAMIDE (PAA) ON HYDROGEN EVOLUTION REACTION AT THE POLYCRYSTALLINE GOLD

Authors

• • D. Ĉamovska
  • Saints Cyril and Methodius University of Skopje, Skopje, Faculty of Technology and Metallurgy, North Macedonia
• • M. Cvetkovska
  • Saints Cyril and Methodius University of Skopje, Skopje, Faculty of Technology and Metallurgy, North Macedonia
• • T. Grčev
  • Saints Cyril and Methodius University of Skopje, Skopje, Faculty of Technology and Metallurgy, North Macedonia

Abstract

The influence of polyacrylamide (PAA; Mn between 5∙103 and 1.5∙106 gmol-1) on hydrogen evolution reaction at the polycrystalline gold in 0.5 M H2SO4 was studied using potentiodynamic measurements (5 mV/s) in the potential range from 0 to -0.6 V/she. It was concluded that formation of protective layer of PAA, adsorbed on the electrode surface, is responsible for inhibition of hydrogen evolution reaction. The further investigations, especially on iron and steel in acid solutions (real corrosion system) confirm the effective inhibition of corrosion by PAA.

Keywords: polyacrylamide, hydrogen evolution reaction, polycrystalline gold

How to Cite: Ĉamovska, D. , Cvetkovska, M. & Grčev, T. (2010) “THE INFLUENCE OF POLYACRYLAMIDE (PAA) ON HYDROGEN EVOLUTION REACTION AT THE POLYCRYSTALLINE GOLD”, Journal of Engineering & Processing Management. 2(1).