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Journal of Electron Microscopy
Year: 2009  |  Volume: 58  |  Issue: 5  |  Page No.: 289 - 294

Nanostructural characterization and catalytic analysis of hybridized platinum/phthalocyanine nanocomposites

K Kaneko, K Furuya, A. B Hungria, J. C Hernandez Garrido, P. A Midgley, T Onodera, H Kasai, Y Yaguchi, H Oikawa, Y Nomura, H Harada, T Ishihara and N. Baba    

Abstract:

Organic crystals, such as phthalocyanine nanocrystal, were successfully hybridized with Pt nanoparticles using a nanohybridization technique. The presence of highly dispersed Pt nanoparticles on the surface of phthalocyanine was confirmed by the combination of transmission electron microscopy and three-dimensional electron tomography. Catalytic activities of hybridized samples with different degrees of dispersions were also examined as oxygen reduction reactivity (ORR) with a linear potential sweep method. It was found that oxygen reduction activity increased with increasing Pt dispersion, and reasonably high ORR was observed on Pt-dispersed phthalocyanine nanocrystal even at 2 wt% Pt loading.

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