Electrochemical performance of lithium molybdenum composite catalyst in oxygen reduction reaction
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Date
2015Metadata
Citation
Yüce, O.A., Farsak, M., Akgül, F.S., Tezcan, F., Telli, E., Kardaş, G. (2015). Electrochemical performance of lithium molybdenum composite catalyst in oxygen reduction reaction. International Journal of Hydrogen Energy, 40, 8889-8896. DOI: 10.1016/j.ijhydene.2015.05.050Abstract
A gel/LiMo catalyst was prepared as a cathode material via the solegel process and applied
calcination at different times. The influence of calcination times, properties and the
electrochemical performance of the catalyst were investigated by utilizing cyclic voltammetry,
potentiodynamic polarization and electrochemical impedance spectroscopy techniques.
The surface of the catalysts, which were prepared in different combinations were
physically characterized using X-ray diffraction, scanning electron microscopy (SEM) and
transmission electron microscopy (TEM). The SEM and TEM images showed that among the
different catalysts, the gel@LiMo catalyst has a different crystal structure. The gel/LiMo
catalyst shows good electrochemical performances in an organic solution and has a good
structural stability. The catalysts also illustrated great electrochemical performances in the
oxygen reduction and evolution reactions.