Work

OXYGEN REDUCTION ON Cu1 ,Mn16O4 SPINEL PARTICLES COMPOSITE ELECTRODES EFFECT OF PARTICLES SIZE

Year: 2014

Type: article

Abstract: The oxygen reduction reaction (orr) was studied on CG/PPy/PPy(Ox)/PPy and CG/paint/CC(Ox)PPy composite electrodes, CG representing conducting glass, PPy polypyrrole, CC carbon cloth and Ox mixed valence spinel oxide particles of transition metals Cu 1.4 Mn 1.6 O 4 in 0.2 M KCl pH = 9.2, at room temperature.PPy is electrochemically polymerized and serves as a protective layer to dispersed oxide particles in the carbon cloth.Oxide particles size varied from 7.6 to 11.2 µm.The orr takes place on the oxide particles with formation of hydrogen peroxide which diffuses to electrolyte solution.The amount of peroxide ions produced was detected using the rotating ring-disk electrode technique and determined indirectly by iodine spectroscopy.The peroxide ions production depends strongly on the oxide particle size.

Source: Journal of the Chilean Chemical Society

DOI: 10.4067/s0717-97072014000200023

Authors: ANDRES ESPEJO, JUAN ORTIZ, EDMUNDO RIOS, FRANCISCO HERRERA, DANIELA ALBURQUENQUE, JUANLUIS GAUTIER

Institution: Universidad de Santiago de Chile

Language: English

Topic: Electrocatalysts for Energy Conversion

Subfield: Renewable Energy, Sustainability and the Environment

Field: Energy

Domain: Physical Sciences

Open Access status: diamond

Funders: Comisión Nacional de Investigación Científica y Tecnológica, Departamento de Investigaciones Científicas y Tecnológicas, Universidad de Santiago de Chile

OpenAlex ID: W2007752050