Effect of Pretreatment on the Nitrogen Doped Activated Carbon Materials Activity towards Oxygen Reduction Reaction
Dobele, Galina; Plavniece, Ance; Volperts, Aleksandrs; Zhurinsh, Aivars; Upskuviene, Daina; Balciunaite, Aldona; Jasulaitiene, Vitalija; Niaura, Gediminas; Talaikis, Martynas; Tamasauskaite-Tamasiunaite, Loreta; Norkus, Eugenijus; Kvello, Jannicke Hatlø; Rausseo, Luis César Colmenares
Peer reviewed, Journal article
Published version
View/ Open
Date
2023Metadata
Show full item recordCollections
- Publikasjoner fra CRIStin - SINTEF AS [5801]
- SINTEF Industri [1566]
Abstract
Nitrogen-doped activated carbons with controlled micro- and mesoporosity were obtained from wood and wastes via chemical processing using pre-treatment (pyrolysis at 500 °C and hydrothermally carbonization at 250 °C) and evaluated as oxygen reduction catalysts for further application in fuel cells. The elemental and chemical composition, structure and porosity, and types of nitrogen bonds of obtained catalyst materials were studied. The catalytic activity was evaluated in an alkaline medium using the rotating disk electrode method. It was shown that an increase in the volume of mesopores in the porous structure of a carbon catalyst promotes the diffusion of reagents and the reactions proceed more efficiently. The competitiveness of the obtained carbon materials compared to Pt/C for the reaction of catalytic oxygen reduction is shown.