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

doi:10.1021/nl072571w

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 journal › Article › peer-review

135 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 language	English (US)
Pages (from-to)	794-799
Number of pages	6
Journal	Nano letters
Volume	8
Issue number	3
DOIs	https://doi.org/10.1021/nl072571w
State	Published - Mar 1 2008

All Science Journal Classification (ASJC) codes

Bioengineering
General Chemistry
General Materials Science
Condensed Matter Physics
Mechanical Engineering

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

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.",

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AU - Hata, Hideo

AU - Kobayashi, Yoji

AU - Bojan, Vince

AU - Justin Youngblood, W.

AU - Mallouk, Thomas E.

PY - 2008/3/1

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N2 - 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.

AB - 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.

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

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