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PdNi-decorated manganite nanocatalyst for electrooxidation of ethylene glycol in alkaline media

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Abstract

PdNi bimetallic nanoparticles coated onto manganite (MN) nanocatalyst was used for ethylene glycol (EG) and glycerol (Gly) electrooxidation in alkaline media. The MN nanorods were prepared by hydrothermal method, and the PdNi was coated on the rods by an in situ reduction method. The prepared nanocomposite was characterized by scanning electron microscopy (SEM), Transmission Electron Microscopy (TEM), Energy dispersive X-ray spectroscopy (EDS), and electrochemical methods. The SEM and TEM images exhibit the formation of nanorods of 10 nm and also show the formation of nanocrystalline PdNi on the walls of the MN nanorods. This study shows that the MN nanorods can be excellent support material and they supply oxygen to the catalyst, by which the catalytic activity is enhanced. The electrooxidation reactions in strong alkaline condition containing various concentrations of EG have been studied. Among the different concentrations, 9 M KOH/6 M EG exhibits the highest activity. PdNi/MN nanocatalyst exhibits better activity even in higher electrolytic concentrations of EG and alkali.

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Acknowledgments

The authors thank the DST, New Delhi for the lab facilities provided through DST Nanomission Project. The authors show gratitude to the authorities of Karunya University, Coimbatore. The authors thankfully acknowledge the management, the secretary and the principal of the Sona College of Technology, Salem, India.

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Authors and Affiliations

  1. Department of Chemistry, Sona College of Technology, Salem, 636 005, India

    Ramanujam Kannan & Kulandaivelu Karunakaran

  2. School of Nanosciences and Technology, Karunya University, Coimbatore, 641 114, India

    Ramanujam Kannan & Samuel Vasanthkumar

  3. Department of Chemistry, Karunya University, Coimbatore, 641 114, India

    Samuel Vasanthkumar

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  1. Ramanujam Kannan
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  2. Kulandaivelu Karunakaran
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  3. Samuel Vasanthkumar
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Correspondence to Samuel Vasanthkumar.

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Kannan, R., Karunakaran, K. & Vasanthkumar, S. PdNi-decorated manganite nanocatalyst for electrooxidation of ethylene glycol in alkaline media. Ionics 18, 803–809 (2012). https://doi.org/10.1007/s11581-012-0727-7

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  • DOI: https://doi.org/10.1007/s11581-012-0727-7

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