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Electrosynthesis and Characterization of Novel CNx-HMMT Supported Pd Nanocomposite Material for Methanol Electro-Oxidation

Author

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  • Faizah Altaf

    (Department of Environmental Sciences, Fatima Jinnah Women University, Rawalpindi 46000, Pakistan
    Department of Chemistry, Women University Bagh, Azad Jammu and Kashmir 12500, Pakistan
    Department of Physics, Lahore Campus, COMSATS University Islamabad, Lahore 54000, Pakistan)

  • Rohama Gill

    (Department of Environmental Sciences, Fatima Jinnah Women University, Rawalpindi 46000, Pakistan)

  • Patrizia Bocchetta

    (Dipartimento di Ingegneria dell’Innovazione, Università del Salento, via Monteroni, 73100 Lecce, Italy)

  • Rida Batool

    (Department of Environmental Sciences, Fatima Jinnah Women University, Rawalpindi 46000, Pakistan
    Department of Physics, Lahore Campus, COMSATS University Islamabad, Lahore 54000, Pakistan
    Georgia Institute of Technology North Avenue, School of Mechanical Engineering, Atlanta, GA 30332, USA)

  • Muhammad Usman Hameed

    (Department of Chemistry, Women University Bagh, Azad Jammu and Kashmir 12500, Pakistan)

  • Ghazanfar Abbas

    (Department of Physics, Lahore Campus, COMSATS University Islamabad, Lahore 54000, Pakistan)

  • Karl Jacob

    (Georgia Institute of Technology North Avenue, School of Mechanical Engineering, Atlanta, GA 30332, USA)

Abstract

In the current research work, palladium (Pd) nanoparticles were electrochemically deposited on a nitrogen doped montmorillonite (CNx-MMT) support using the underpotential deposition (UPD) method. The prepared Pd based composite electrode was studied as an electrocatalyst for methanol fuel oxidation. The catalysts and the supporting materials montmorillonite, acid activated montmorillonite, and nitrogen doped montmorillonite (MMT, HMMT and CNx-HMMT) were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy dispersive X-ray spectroscopy (EDS) and electrochemical characterization by cyclic voltammetry (CV). The results indicated that Pd supported on CNx-HMMT possesses enhanced electrocatalytic activity and stability compared to commercial Pd/C, which was attributed to its higher electrochemical surface area (ECSA) (23.00 m 2 g −1 ). The results demonstrated the potential application of novel Pd/CNx-HMMT composite nanomaterial as electrocatalysts for methanol electrooxidation in direct methanol fuel cells (DMFCs).

Suggested Citation

  • Faizah Altaf & Rohama Gill & Patrizia Bocchetta & Rida Batool & Muhammad Usman Hameed & Ghazanfar Abbas & Karl Jacob, 2021. "Electrosynthesis and Characterization of Novel CNx-HMMT Supported Pd Nanocomposite Material for Methanol Electro-Oxidation," Energies, MDPI, vol. 14(12), pages 1-16, June.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:12:p:3578-:d:575797
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    References listed on IDEAS

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    1. Ojani, Reza & Hasheminejad, Ehteram & Raoof, Jahan Bakhsh, 2015. "Direct growth of 3D flower-like Pt nanostructures by a template-free electrochemical route as an efficient electrocatalyst for methanol oxidation reaction," Energy, Elsevier, vol. 90(P1), pages 1122-1131.
    2. Kwok, Y.H. & Wang, Y.F. & Tsang, Alpha C.H. & Leung, Dennis Y.C., 2018. "Graphene-carbon nanotube composite aerogel with Ru@Pt nanoparticle as a porous electrode for direct methanol microfluidic fuel cell," Applied Energy, Elsevier, vol. 217(C), pages 258-265.
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