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Mesocarbon microbeads supported PtSn catalysts for electrochemical oxidation of ethanol

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Abstract

Mesocarbon microbeads (MCMB) supported PtSn catalysts were prepared by alcohol reduction method and characterized by XRD, FESEM and EDX. XRD results show that the addition of Sn to Pt/MCMB extends the fcc lattice parameters of platinum and the particle size of PtSn/MCMB is about 2.6 nm, smaller than that of Pt/MCMB. The electrode catalytic activity in the electro-oxidation of ethanol was studied by cyclic voltammetry, Tafel plot, electrochemistry impedance spectra (EIS) and chronoamperometry. All the results showed that PtSn/MCMB gave higher catalytic activity for ethanol electro-oxidation than Pt/C (20 wt.% E-TEK).

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Acknowledgements

The authors appreciate the financial support of the State Key Basic Research Program of PRC (2002CB211803) and National Natural Science Foundation of China (90410002).

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Authors and Affiliations

  1. Key Lab of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing, 100084, China

    Yuxia Bai, Jinfeng Li, Xinping Qiu, Jianjun Wu, Jianshe Wang, Jingyu Xi, Wentao Zhu & Liquan Chen

  2. Department of Chemistry, Shijiazhuang College, Shijiazhuang, 050801, China

    Jianjun Wu

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  1. Yuxia Bai
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  2. Jinfeng Li
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  3. Xinping Qiu
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  4. Jianjun Wu
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  7. Wentao Zhu
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  8. Liquan Chen
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Correspondence to Xinping Qiu.

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Bai, Y., Li, J., Qiu, X. et al. Mesocarbon microbeads supported PtSn catalysts for electrochemical oxidation of ethanol. J Mater Sci 42, 4508–4512 (2007). https://doi.org/10.1007/s10853-006-0559-9

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  • DOI: https://doi.org/10.1007/s10853-006-0559-9

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