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Employing Piper longum extract for eco-friendly fabrication of PtPd alloy nanoclusters: advancing electrolytic performance of formic acid and methanol oxidation

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Abstract

Advancement in bioinspired alloy nanomaterials has a crucial impact on fuel cell applications. Here, we report the synthesis of PtPd alloy nanoclusters via the hydrothermal method using Piper longum extract, representing a novel and environmentally friendly approach. Physicochemical characteristics of the synthesized nanoclusters were investigated using various instrumentation techniques, including X-ray photoelectron spectroscopy, X-ray diffraction, and High-Resolution Transmission electron microscopy. The electrocatalytic activity of the biogenic PtPd nanoclusters towards the oxidation of formic acid and methanol was evaluated chronoamperometry and cyclic voltammetry studies. The surface area of the electrocatalyst was determined to be 36.6 m2g−1 by Electrochemical Surface Area (ECSA) analysis. The biologically inspired PtPd alloy nanoclusters exhibited significantly higher electrocatalytic activity compared to commercial Pt/C, with specific current responses of 0.24 mA cm − 2 and 0.17 mA cm − 2 at synthesis temperatures of 180 °C and 200 °C, respectively, representing approximately four times higher oxidation current after 120 min. This innovative synthesis approach offers a promising pathway for the development of PtPd alloy nanoclusters with enhanced electrocatalytic activity, thereby advancing fuel cell technology towards a sustainable energy solution.

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Acknowledgements

This work was supported by a project for Industry-University-Research Institute platform cooperation R&D funded Korean Ministry of SMEs and Startups in 2022 (G21S331061502) and by the National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIT) (No. 2020R1F1A1067581). The authors express their sincere appreciation to the Researchers Supporting Project Number (RSP2024R436) King Saud University, Riyadh, Saudi Arabia. We are grateful for the financial support from the Ministry of Science and Technology, Taiwan, R. O. C., under contract number 109-2221-E-324-001-MY3, which has been instrumental in the successful execution of our project.

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  1. Thamaraiselvi Kanagaraj and Sivarasan Ganesan have contributed equally in First authorship.

Authors and Affiliations

  1. Department of Chemistry, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai, Tamil Nadu, 602105, India

    Thamaraiselvi Kanagaraj

  2. Department of Medical IT Convergence Engineering, Kumoh National Institute of Technology, Gumi, South Korea

    Velu Manikandan & Kwang Soup Song

  3. Department of Environmental Engineering and Management, Chaoyang University of Technology, Taichung, Taiwan

    Sivarasan Ganesan & Huang-Mu Lo

  4. Department of Zoology, College of Sciences, King Saud University, P.O. Box. 2455, 11451, Riyadh, Saudi Arabia

    Mohammed F. Albeshr

  5. Department of Pharmacology, Saveetha Institute of Medical and Technical Sciences, Saveetha Dental College, Saveetha University, Chennai, 600077, India

    R. Mythili

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Contributions

Author Contributions Statement Thamaraiselvi Kanagaraj: Conceptualization, Investigation, Methodology, Writing original draft. Velu Manikandan: Methodology, Data curation, Formal analysis, Writing - review & editing. Sivarasan Ganesan: Formal analysis, Writing - review & editing. Mohammed F. Albeshr: Writing - review & editing. R. Mythili: Writing - review & editing. Kwang Soup Song: Supervision, Formal analysis, Funding acquisition, Writing - review & editing. Huang-Mu Lo: Data curation, Supervision, Funding acquisition, Writing - review & editing.

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Correspondence to Kwang Soup Song or Huang-Mu Lo.

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Kanagaraj, T., Manikandan, V., Ganesan, S. et al. Employing Piper longum extract for eco-friendly fabrication of PtPd alloy nanoclusters: advancing electrolytic performance of formic acid and methanol oxidation. Environ Geochem Health 46, 172 (2024). https://doi.org/10.1007/s10653-024-01953-0

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  • DOI: https://doi.org/10.1007/s10653-024-01953-0

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