Incorporating manganese selenide with polymerized reduced carbon sheets: an efficient and stable electro-catalyst for methanol oxidation
https://doi.org/10.17586/2220-8054-2025-16-5-669-680
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/cm2 ), 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 m2 /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/cm2 ) 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.
Keywords
RGO,
MnSe,
Poly-N-methyl pyrrole (P-NMPy),
RGO/MnSe@P-NMPy (RMP),
current density,
methanol oxidation reaction (MOR)
Supporting agencies: The authors are extremely grateful to Department of Science and Technology (FAST TRACK and FIST) New Delhi, INDIA for using CHI Electrochemical workstation at V.O. Chidambaram College, Tuticorin-8 and Jasco UV-VISIBLE Spectrophotometer. We are thankful to The Secretary of A.P.C Mahalaxmi College for women, Thoothukudi.
About the Authors
Kavitha Murugan
V.O. Chidambaram College; Affiliated to Manonmaniam Sundaranar University
India
India
Kavitha Murugan – PG and Research Department of Chemistry
Thoothukudi-628008, Tamilnadu; Abishekapatti, Tirunelveli-627012, Tamilnadu
Kalaiarasi Senthurpandi
A.P.C Mahalaxmi College for Women; Affiliated to Manonmaniam Sundaranar University
India
India
Kalaiarasi Senthurpandi – PG and Research Department of Chemistry
Thoothukudi-628002, Tamilnadu; Abishekapatti, Tirunelveli-627012, Tamilnadu
Vedhi Chinnapaiyan
V.O. Chidambaram College; Affiliated to Manonmaniam Sundaranar University
India
India
Vedhi Chinnapaiyan – PG and Research Department of Chemistry
Thoothukudi-628008, Tamilnadu; Abishekapatti, Tirunelveli-627012, Tamilnadu
Muthuchudarkodi Raja Ram
V.O. Chidambaram College; Affiliated to Manonmaniam Sundaranar University
India
India
Muthuchudarkodi Rajaram – PG and Research Department of Chemistry
Thoothukudi628008, Tamilnadu; Abishekapatti, Tirunelveli-627012, Tamilnadu
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For citations:
Murugan K., Senthurpandi K., Chinnapaiyan V., Raja Ram M. Incorporating manganese selenide with polymerized reduced carbon sheets: an efficient and stable electro-catalyst for methanol oxidation. Nanosystems: Physics, Chemistry, Mathematics. 2025;16(5):669-680. https://doi.org/10.17586/2220-8054-2025-16-5-669-680
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