Korean Institute of Surface Engineering

pISSN : 1225-8024 | eISSN : 3399-8403

공학

한국표면공학회지 (32권3호 366-371)

ON THE SONO-VOLTAMMETRY CURVES OF POLYCRYSTALLINE PLATINUM ELECTRODE IN SULFURIC ACID SOLUTION


Chiba, Atsushi;Kobayashi, Katsuyoshi;Yamashita, Tsugito;


Department of Materials Chemistry, Yokohama National University;Department of Industrial Chemistry, Kantogakuin Uneversity;

Abstract

The volumetric curve was characterized by current functions of large amplitude and formation peak potential of adsorption oxygen (O(a)) was disappeared with sonication. The reduction peak potential of O(a) shifted about 0.05 V to noble direction in saturated $N_2$ and air systems with addition of $Cl^{-1}$ ion and sonication. The formation and ionization potentials of adsorption hydrogen (H(a)) had not been confirmed, and were not changed with sonication.

Keywords

Voltammetry;Ultrasonic;Platinum;Sulfuric acid;Chloride ion;