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    P.K. Babu

    Office: Chemical Life Science Laboratory - A112


    Research Description

    My research focuses on the NMR study of surface structure-catalytic activity correlations in nanoparticle catalysts and adsorbed gas molecules. In recent work, we made the first measurement of surface diffusion of CO molecules adsorbed on Pt nanoparticles using an NMR technique. Current project is aimed at developing chalcogenide nanoparticle catalysts for oxygen reduction reaction in fuel cells.

    Representative Publications

    1
    (327)

    P. K. Babu, A. Lewera, J.-H. Chung, R. Hunger, W. Jaegermann, N. Alonso-Vante, A. Wieckowski, E. Oldfield.
    Selenium Becomes Metallic on Ru/Se Fuel Cell Catalysts: An EC-NMR and XPS Investigation
    J. Am. Chem. Soc., 129, 15140-15141, (2007).

    2
    (309)

    H. Imai, P. K. Babu, E. Oldfield, A. Wieckowski, D. Kasuya, T. Azami, Y. Shimakawa, M. Yudasaka, Y. Kubo and S. Iijima.
    A 13C NMR spectroscopic investigation of carbon nanohorns.
    Phys. Rev. B, 73, 125405-1-7 (2006).

    3
    (305)

    T. Kobayashi, P.K. Babu, L. Gancs, J.H. Chung, E. Oldfield and A. Wieckowski.
    An NMR determination of CO diffusion on platinum electrodes.
    J. Am. Chem. Soc., 127, 14164-14165 (2005).

    4
    (299)

    P. K. Babu, H. S. Kim, J. H. Chung, E. Oldfield and A. Wieckowski.
    Bonding and motional aspects of CO adsorbed on the surface of Pt nanoparticles decorated with Pd.
    J. Phys. Chem. 108, 20228-20232 (2004).

    5
    (274)

    P. K. Babu, H. S. Kim, E. Oldfield and A. Wieckowski.
    Electronic alterations caused by ruthenium in Pt-Ru alloy nanoparticles as revealed by electrochemical NMR.
    J. Phys. Chem. B, 107, 7595-7600 (2003).


    (c) 2010-2012 Research Group of Professor Eric Oldfield
    University of Illinois at Urbana-Champaign

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