Abstract:
Reduced graphene oxide/Manganese selenide @Poly-N-methyl pyrrole (RGO/MnSe@P-NMPy) polymer nanocomposite are synthesized via chemical oxidative in-situ polymerization process. The RGO/ MnSe@P-NMPy polymer nanocomposite was examined using FTIR spectroscopy, UV-Visible, XRD, TEM and electrochemical investigations in addition to FESEM with EDAX. The methanol oxidation reaction in basic environments was validated using the cyclic voltammetry method. The RGO/MnSe@P-NMPy polymer nanocomposite electro-catalyst shows excellent electrocatalytic activity, lower oxidation potential (0.1 V), improved current density (96 mA/cm$^2$), and excellent stability towards methanol oxidation reaction (MOR) in basic medium. It was observed RGO/MnSe@P-NMPy nanohybrid electrocatalyst, the ECSA value is 183.7 m$^2$/g. This result clearly depicts that RGO/MnSe@P-NMPy polymer nanocomposite electro-catalyst has more active sites for MOR reaction. Chronoamperometry was utilized to show that, in comparison to the other nanocomposite, the existence of RMP polymer nanocomposite enhanced stability (1000’s) and produced higher current densities (27.71 mA/cm$^2$) for methanol oxidation. According to the results, the P-NMPy introduction in RGO/MnSe structure can enhance the performance of methanol oxidation and increase the resistance to CO in comparison with mono metallic catalyst. This study makes the case for the potential development of high-performance, inexpensive catalysts for energy storage, conversion and useful uses.
Fulltext:
PDF file (986 kB)