POLARIZATION CHARACTERISTICS OF PACKED BED ELECTRODE REACTOR FOR ELECTROREDUCTION OF OXYGEN TO HYDROGEN PEROXIDE

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

HISATSUGU KITAGUCHI¹  MASAO SUDOH¹  Kozo KOIDE¹ 

[1] Department of Chemical Engineering, Shizuoka University

关键词: Electrolysis;    Packed Bed Electrode;    Two Phase Model;    Overpotential Profile;    Hydrogen Peroxide;   

DOI  :  10.1252/jcej.18.364

来源: Maruzen Company Ltd

【 摘 要 】

References(19)Cited-By(17)The relation between current density and overpotential for electroreduction of oxygen to hydrogen peroxide in the packed-bed electrode reactor was studied. Theoretical analyses were made on the basis of the two-dimensional two-phase model of the particulate electrode where the distribution of concentration of dissolved oxygen and the overpotential were considered. The kinetics of electrode reactions was determined with a rotating-disk electrode of graphite. The effective specific surface area available for electrode reaction in the packed-bed electrode was determined by analysing the transient current response to a potential step. The observed values of overpotential profile and the polarization curves of the packed-bed electrode agreed with the theoretical ones calculated by use of the kinetic and reactor properties.

【 授权许可】

Unknown