Genesis of catalytically active gold nanoparticles supported on hydrotalcite for base-free selective oxidation of glycerol in water with molecular oxygen

Atsushi Takagaki; Akihiro Tsuji; Shun Nishimura; Kohki Ebitani

doi:10.1246/cl.2011.150

Genesis of catalytically active gold nanoparticles supported on hydrotalcite for base-free selective oxidation of glycerol in water with molecular oxygen

Atsushi Takagaki, Akihiro Tsuji, Shun Nishimura, Kohki Ebitani

Research output: Contribution to journal › Article › peer-review

27 Citations (Scopus)

Abstract

Hydrotalcite-supported gold nanoparticles (Au/HT) were synthesized by depositionprecipitation using NH₃ and successive calcination at various temperatures. Gold nanoparticles of less than 5 nm with narrow size distribution were deposited onto hydrotalcite surfaces, which were determined by TEM measurements. Au L_III-edge XANES spectra clearly indicated that calcination at temperatures higher than 373K leads to the generation of metallic Au which is the catalytically active site for selective glycerol oxidation to glycolic acid in water with molecular oxygen under mild reaction conditions.

Original language	English
Pages (from-to)	150-152
Number of pages	3
Journal	Chemistry Letters
Volume	40
Issue number	2
DOIs	https://doi.org/10.1246/cl.2011.150
Publication status	Published - Feb 4 2011
Externally published	Yes

All Science Journal Classification (ASJC) codes

Chemistry(all)

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10.1246/cl.2011.150

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abstract = "Hydrotalcite-supported gold nanoparticles (Au/HT) were synthesized by depositionprecipitation using NH3 and successive calcination at various temperatures. Gold nanoparticles of less than 5 nm with narrow size distribution were deposited onto hydrotalcite surfaces, which were determined by TEM measurements. Au LIII-edge XANES spectra clearly indicated that calcination at temperatures higher than 373K leads to the generation of metallic Au which is the catalytically active site for selective glycerol oxidation to glycolic acid in water with molecular oxygen under mild reaction conditions.",

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AU - Nishimura, Shun

AU - Ebitani, Kohki

PY - 2011/2/4

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AB - Hydrotalcite-supported gold nanoparticles (Au/HT) were synthesized by depositionprecipitation using NH3 and successive calcination at various temperatures. Gold nanoparticles of less than 5 nm with narrow size distribution were deposited onto hydrotalcite surfaces, which were determined by TEM measurements. Au LIII-edge XANES spectra clearly indicated that calcination at temperatures higher than 373K leads to the generation of metallic Au which is the catalytically active site for selective glycerol oxidation to glycolic acid in water with molecular oxygen under mild reaction conditions.

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Genesis of catalytically active gold nanoparticles supported on hydrotalcite for base-free selective oxidation of glycerol in water with molecular oxygen

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