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Title: Titania-Supported gold nanoparticles as efficient catalysts for the oxidation of cellobiose to organic acids in aqueous medium
Authors: Amaniampong, Prince Nana
Li, Kaixin
Jia, Xinli
Wang, Bo
Borgna, Armando
Yang, Yanhui
Keywords: DRNTU::Science::Chemistry
Issue Date: 2014
Source: Amaniampong, P. N., Li, K., Jia, X., Wang, B., Borgna, A., & Yang, Y. (2014). Titania-Supported Gold Nanoparticles as Efficient Catalysts for the Oxidation of Cellobiose to Organic Acids in Aqueous Medium. ChemCatChem, 6(7), 2105-2114.
Series/Report no.: ChemCatChem
Abstract: Titania-supported gold nanoparticles were prepared by using the deposition–precipitation method, followed by reduction under a hydrogen flow. The catalytic activity of these as-prepared catalysts was explored in the oxidation of cellobiose to gluconic acid with molecular oxygen, and the properties of these catalysts were examined by using XRD, TEM, temperature-programmed desorption of NH3, energy-dispersive X-ray spectroscopy, UV/Vis, and X-ray photoemission spectroscopy (XPS). The catalyst sample reduced at high temperature demonstrated an excellent catalytic activity in the oxidation of cellobiose. The characterization results revealed the strong metal–support interaction between the gold nanoparticles and titania support. Hydrogen reduction at higher temperatures (usually >600 °C) plays a vital role in affording a unique interface between gold nanoparticles and titania support surfaces, which thus improves the catalytic activity of gold/titania by fine-tuning both the electronic and structural properties of the gold nanoparticles and titania support.
ISSN: 1867-3880
DOI: 10.1002/cctc.201402096
Rights: © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:SCBE Journal Articles

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