Direct deposition of trivalent rhodium hydroxide nanoparticles onto a semiconducting layered calcium niobate for photocatalytic hydrogen evolution.

نویسندگان

  • Hideo Hata
  • Yoji Kobayashi
  • Vince Bojan
  • W Justin Youngblood
  • Thomas E Mallouk
چکیده

Well-dispersed Rh(OH)3 nanoparticles were deposited in the interlayer galleries of a Dion-Jacobson type layered perovskite (ACa2Nb3O10: A=H or K). X-ray photoelectron spectra and zeta potential measurements suggest covalent bonding (Rh-O-Nb) between the nanoparticles and the niobate sheets. After calcination of Rh(OH)3/KCa2Nb3O10 at 350 degrees C in air, interlayer Rh(OH)3 nanoparticles were transformed to Rh2O3 and showed higher photocatalytic activity for hydrogen evolution using methanol as a sacrificial electron donor.

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عنوان ژورنال:
  • Nano letters

دوره 8 3  شماره 

صفحات  -

تاریخ انتشار 2008