Investigation of properties of Co porphyrine pyrolysis products and identification of nature of molecular oxygen reduction active centers in basic electrolyte

Autor:	Elena S. Davydova, M. R. Tarasevich
Rok vydání:	2015
Předmět:	Chemistry Organic Chemistry Inorganic chemistry Metals and Alloys chemistry.chemical_element Electrolyte Surfaces Coatings and Films Catalysis Adsorption Materials Chemistry Rotating disk electrode Cyclic voltammetry Inert gas Pyrolysis Cobalt
Zdroj:	Protection of Metals and Physical Chemistry of Surfaces. 51:240-247
ISSN:	2070-206X 2070-2051
DOI:	10.1134/s2070205115020045
Popis:	The methods of X-ray photoelectron spectroscopy, benzene vapor-phase adsorption, cyclic voltammetry, rotating disk electrode, and rotating ring-disk electrode were used in this work to investigate the properties of cobalt (II) tetrakis(4-methoxyphenyl)porphyrin pyrolysis products obtained in an inert atmosphere at 850°C on the surface of Vulcan XC72. The effect is considered of the amount of the initial metalloporphyrin, removal of metal-containing pyrolysis products in the course of acid treatment, and thickness of the catalyst layer on the activity and selectivity of the catalysts in O2 reduction reaction in 1 M KOH. Ideas regarding the nature of active centers for O2 and HO2− reduction are formulated.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b08c0c524521a6af4257a271460cd161 https://doi.org/10.1134/s2070205115020045 Zobrazit plný text záznamu Full text from SpringerLink