RT journal article
T1 Investigations of Carbon Nitride-Supported Mn3O4 Oxide Nanoparticles for ORR
A1 Large, Alexander I.
A1 Wahl, Sebastian
A1 Abate, Salvatore
A1 da Silva, Ivan
A1 Delgado Jaén, Juan José
A1 Pinna, Nicola
A1 Held, Georg
A1 Arrigo, Rosa
A2 Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica
K1 carbon nitride
K1 ORR
K1 XPS
K1 UV-Vis
AB Earth-abundant Mn-based oxide nanoparticles are supported on carbon nitride using two different immobilization methods and tested for the oxygen reduction reaction. Compared to the metal free CN, the immobilization of Mn oxide enhances not only the electrocatalytic activity but also the selectivity towards the 4e- reduction reaction of O-2 to H2O. The XPS analysis reveals the interaction of the pyridine N species with Mn3O4 nanoparticles being particularly beneficial. This interaction is realized-although to a limited extent-when preparing the catalysts via impregnation; via the oleic acid route it is not observed. Whilst this work shows the potential of these systems to catalyze the ORR, the main limiting factor is still the poor conductivity of the support which leads to overpotential.
PB MDPI
SN 2073-4344
YR 2020
FD 2020-11
LK http://hdl.handle.net/10498/24183
UL http://hdl.handle.net/10498/24183
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 15-nov-2026