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Synthesis and Characterization of Platinum Nanoparticles on PT-Coated Mesoporous Silica as an Electrocatalyst for Direct Methanol Fuel Cells

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Abstract

Nanoparticles of mesoporous silica are synthesized and modified by Poly-thiophene (PT) to improve the electrical conductivity. Platinum nanoparticles are synthesized and deposited on the surface of the modified mesoporous silica. The materials in each step are well characterized by X-ray powder diffraction, high resolution transmission electronic microscopy, thermal analysis (TGA/DTA), nitrogen sorption analysis, elemental analysis (CHNS), inductive coupled plasma and optical emission spectroscopy. This composite is used as an anodic electrocatalyst for direct methanol fuel cell application. The influence of loading of the electrocatalyst and temperature on the performance of a direct methanol fuel cell is studied and the results are discussed. A maximum power density of 35.96 mW cm−2 at a current density of 129.44 mA cm−2 was obtained, which is attributed to the dispersion and accessibility of the modified mesoporous silica support in the electrocatalyst mixture for the methanol oxidation reaction.

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Acknowledgments

We gratefully acknowledge financial support by Renewable Energy Organization of Iran (SUNA).

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Authors and Affiliations

  1. Department of Chemistry, Shahr-e-Rey Branch, Islamic Azad University, P.O. Box 18735-334, Tehran, Iran

    Mohammad Karimi, Hamid Reza Lotfi Zadeh Zhad, Forouzan Aboufazeli, Omid Sadeghi & Ezzatollah Najafi

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  1. Mohammad Karimi
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  2. Hamid Reza Lotfi Zadeh Zhad
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  3. Forouzan Aboufazeli
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  4. Omid Sadeghi
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  5. Ezzatollah Najafi
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Correspondence to Ezzatollah Najafi.

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Karimi, M., Zhad, H.R.L.Z., Aboufazeli, F. et al. Synthesis and Characterization of Platinum Nanoparticles on PT-Coated Mesoporous Silica as an Electrocatalyst for Direct Methanol Fuel Cells. J Inorg Organomet Polym 23, 385–392 (2013). https://doi.org/10.1007/s10904-012-9791-8

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  • DOI: https://doi.org/10.1007/s10904-012-9791-8

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