Electrochemical Aspects of the Inhibition of Corrosion of Metals

摘要: Most forms of corrosion are the result electrochemical processes; therefore, effectiveness inhibitors is largely determined by potential metal that to be protected. This potential, together with pH and reactivity any component added corrosive environment, will determine whether oxidation—reduction reactions occur on surface. If difficultly-soluble compounds form as a such reactions, then can become passivated additive potentially inhibitor.(1,2) If, other hand, there no transformation additive, role affect free energy adsorption components solution. The surface concentration adsorbate therefore depend and, described Bronsted—Polanyi—Semenov principle, activation adsorption. In this connection, one fundamental concepts electrochemistry introduced Frumkin in 1927, zero charge E q=0, considerable importance.