Tellurium-doped lanthanum manganite as catalysts for the oxygen reduction reaction

Tellurium-doped lanthanum manganite as catalysts for the oxygen reduction reaction

The effect of tellurium (Te) doping on the electrocatalytic activity of La1−x Te x MnO3 toward the oxygen reduction reaction is investigated for the first time. La1−x Te x MnO3 with x-values up 23% were synthesized from a single ionic liquid-based precursor, yielding nanoparticles with mean diameter...

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Veröffentlicht in:MRS communications 2017-06, Vol.7 (2), p.193-198
Hauptverfasser: Celorrio, V., Morris, L.J., Cattelan, M., Fox, N.A., Fermin, D.J.
Format: Artikel
Sprache:eng
Schlagworte:
Biomaterials
Carbon
Characterization and Evaluation of Materials
Diffraction
Doping
Electrodes
Lanthanum
Manganites
Materials Engineering
Materials Science
Metal oxides
Methods
Nanotechnology
Oxidation
Oxygen reduction reactions
Polymer Sciences
Research Letter
Research Letters
Studies
Tellurium
Unit cell
Valence
Voltammetry
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Zusammenfassung:The effect of tellurium (Te) doping on the electrocatalytic activity of La1−x Te x MnO3 toward the oxygen reduction reaction is investigated for the first time. La1−x Te x MnO3 with x-values up 23% were synthesized from a single ionic liquid-based precursor, yielding nanoparticles with mean diameter in the range of 40–68 nm and rhombohedral unit cell. Electrochemical studies were performed on carbon-supported particles in alkaline environment. The composition dependence activity is discussed in terms of surface density of Mn sites and changes in the effective Mn oxidation state.
ISSN:2159-6859
2159-6867
DOI:10.1557/mrc.2017.22