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Report No.

Preparation of platinum nano-particles using low-energy electron beam reduction method and their catalytic activity

Sugawara, Toshifumi*; Takahashi, Ayaka*; Aritani, Hirofumi*; Shimada, Akihiko; Hakoda, Teruyuki; Sugimoto, Masaki; Yoshikawa, Masahito

We observed that platinum nanoparticles films were produced on the surface of a solution containing 1 mmol/L PtCl$$_{4}$$$$^{2-}$$ ions and 0.5-20v% ethanol by irradiating with a few tens keV electron beams (EB). The platinum films, deposited to grassy substrates, showed the fuel-cell catalytic activity. The Pt nanoparticle films prepared using a few tens keV EB induced reduction method were observed to have catalytic activity.



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