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Effect of Pretreatment on the Nitrogen Doped Activated Carbon Materials Activity towards Oxygen Reduction Reaction

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.
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Category

Academic article

Language

English

Author(s)

  • Galina Dobele
  • Ance Plavniece
  • Aleksandrs Volperts
  • Aivars Zhurinsh
  • Daina Upskuviene
  • Aldona Balciunaite
  • Vitalija Jasulaitiene
  • Gediminas Niaura
  • Martynas Talaikis
  • Loreta Tamasauskaite-Tamasiunaite
  • Eugenijus Norkus
  • Jannicke Hatlø Kvello
  • Luis Cesar Colmenares Rausseo

Affiliation

  • SINTEF Industry / Sustainable Energy Technology
  • Latvian State Institute of Wood Chemistry - IWC
  • Lithuania

Year

2023

Published in

Materials

Volume

16

Issue

17

View this publication at Norwegian Research Information Repository