Open Access

pH-Tuned Synthesis of Samarium-Doped MoO₃/SiO₂ Nanocomposite for Enhanced Electrochemical Performance

L. Jayanthi, Department of Physics, PSG College of Arts and Science, Coimbatore, TN, India P. Janardhanan, Department of Physics, PSG College of Arts and Science, Coimbatore, TN, India J. Manikandan, Department of Chemistry, PSG College of Arts and Science, Coimbatore, TN, India C. Sivaraj, Department of Mathematics, PSG College of Arts and Science, Coimbatore, TN, India M. Elango elango@psgcas.ac.in
Department of Physics, PSG College of Arts and Science, Coimbatore, TN, India


J. Environ. Nanotechnol., Volume 13, No 4 (2024) pp. 226-231

https://doi.org/10.13074/jent.2024.12.2441087

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Abstract

Molybdenum trioxide has emerged as a promising material for various applications due to its semiconducting nature, layered structure, and high redox activity. In this study, we report the preparation, characterization, and electrochemical performance of samarium-doped MoO3/SiO2 synthesized via a wet-chemical approach at different pH levels. A comprehensive investigation was carried out to understand the structural, morphological, optical, and electrochemical properties using X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), UV-Vis spectroscopy, Fourier-transform infrared spectroscopy (FTIR), and cyclic voltammetry (CV). The results reveal the impact of pH and samarium doping on the crystallinity, particle morphology, optical bandgap, and charge storage properties of MoO3. This study highlights the potential of tailored MoO3-based materials for applications in catalysis, energy storage, and environmental remediation.

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Reference


Vasudeva, R. and Reddy, M., Development of n-MoO3@MoS2/p-Si heterostructure diode using pre-synthesized core@shell nanocomposite for efficient light harvesting detector application, Mater. Sci. Semicond. Process., 135, 106097 (2021).

https://doi.org/10.1016/j.mssp.2021.106097

Janardhanan, P., Jayachandran, V., Elango, M. and Manikandan, J., Insights on pH-dependent Physicochemical Properties and Supercapacitance Ability of α-MoO3, J. Environ. Nanotechnol., 13(3), 09-13 (2024).

https://doi.org/10.13074/jent.2024.09.243859

Kumar, S., Singh, A., Singh, R., Singh, S., Kumar, P. and Kumar, R., Facile h-MoO3 synthesis for NH3 gas sensing application at moderate operating temperature, Sensor Actuat. B., 325, 128974 (2020).

https://doi.org/10.1016/j.snb.2020.128974

Vazan, M., Tashkhourian, J. and Haghighi, B., A novel electrochemical sensor based on MoO3 nanobelt-graphene oxide composite for the simultaneous determination of paracetamol and 4-aminophenol, Diamond Relat. Mater., 140, 110549 (2023).

https://doi.org/10.1016/j.diamond.2023.110549

Yang, G., Honglei, Y., Zhang., Xueyao., lqbal., Kanwal., Feng., Fan., Ma., Qin, J., Yuan, J., Cai, F., Ma, Y. and Jiantai, Surfactant-free self-assembly to the synthesis of MoO3 nanoparticles on mesoporous SiO2 to form MoO3/SiO2 nanosphere networks with excellent oxidative desulfurization catalytic performance, J. Hazard. Mater., 397, 122654 (2020).

https://doi.org/10.1016/j.jhazmat.2020.122654

Zhang, Y. and Park, S., Bimetallic AuPd alloy nanoparticles deposited on MoO3 nanowires for enhanced visible-light driven trichloroethylene degradation, J. Catal., 361, 238-247 (2018).

https://doi.org/10.1016/j.jcat.2018.03.010

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