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

Hideo Hata, Yoji Kobayashi, Vince Bojan, W. Justin Youngblood, Thomas E. Mallouk

Research output: Contribution to journalArticle

108 Scopus citations

Abstract

Well-dispersed Rh(OH) 3 nanoparticles were deposited in the interlayer galleries of a Dion-Jacobson type layered perovskite (ACa 2Nb 3O 10: A = H or K). X-ray photoelectron spectra and ζ potential measurements suggest covalent bonding (Rh-O-Nb) between the nanoparticles and the niobate sheets. After calcination of Rh(OH) 3/KCa 2Nb 3O 10 at 350°C in air, interlayer Rh(OH) 3 nanoparticles were transformed to Rh 2O 3 and showed higher photocatalytic activity for hydrogen evolution using methanol as a sacrificial electron donor.

Original languageEnglish (US)
Pages (from-to)794-799
Number of pages6
JournalNano letters
Volume8
Issue number3
DOIs
StatePublished - Mar 1 2008

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

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