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Solution-phase polyol synthesis and coadsorption MD calculations from faceted platinum nanoparticles: NOVEL NPs‒polymer morphology controlling

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Abstract

In this study, the polyol reduction process is applied to synthesize the platinum nanoparticles using polyethylene glycol (PEG) as a complexing/reducing agent and polyvinylpyrrolidone (PVP) as a stabilizer. The platinum nanoparticles were characterized by TEM, XRD, EDX, FT-IR, and UV–Vis spectroscopy indicating the formation of polydisperse faceted Pt nanoparticles. By binding PVP to (200) facets of platinum nanoparticles compared with (111) facets, it played a vital role in controlling the morphology of platinum nanocrystallines. Meanwhile, the (111) surfaces were used for reactions. Due to their nanocrystalline nature, the so-obtained platinum nanoparticles displayed different faceted shapes, including faceted and quasi-spherical morphologies. The molecular dynamics simulations were applied for coadsorption of PEG and PVP on PtCl4 (111), and K2PtCl6 (111) surfaces in Material Studio 2017 using the Forcite module. The results showed that coadsorption of PEG and PVP on PtCl4 (111) was higher than coadsorption of PEG and PVP on K2PtCl6 (111).

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Acknowledgements

The authors gratefully acknowledge the partial support from the Research Council of the Iran University of Science and Technology.

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ARA: has guided all project processes; IM: has designed the study and managed analysis and characterization, discussed the results and literature study, and performed practical parts of the work. REM: has performed the computational part of the work and wrote the MD: simulation syntax section.

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Correspondence to Ali Reza Akbarzadeh.

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The authors declare that they have no known competing financial interests or personal relationships that could have influenced the work reported in this paper. The corresponding author states that there is no conflict of interest.

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Akbarzadeh, A.R., Mesgarzadeh, I. & Eshaghi Malekshah, R. Solution-phase polyol synthesis and coadsorption MD calculations from faceted platinum nanoparticles: NOVEL NPs‒polymer morphology controlling. Chem. Pap. 76, 5761–5774 (2022). https://doi.org/10.1007/s11696-022-02272-3

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  • DOI: https://doi.org/10.1007/s11696-022-02272-3

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