Microwave-assisted base-free oxidation of glucose on gold nanoparticle catalysts

Sari Rautiainen; Petra Lehtinen; Marko Vehkamäki; Klaus Niemelä; Marianna Kemell; Mikko Heikkilä; Timo Repo

doi:10.1016/j.catcom.2015.11.014

Microwave-assisted base-free oxidation of glucose on gold nanoparticle catalysts

Sari Rautiainen, Petra Lehtinen, Marko Vehkamäki, Klaus Niemelä, Marianna Kemell, Mikko Heikkilä, Timo Repo (Corresponding Author)

BA3505 Biorefining chemistry

Research output: Contribution to journal › Article

20 Citations (Scopus)

Abstract

Base-free oxidation of glucose to gluconic acid with supported gold catalysts was studied using microwave heating. High conversion and selectivity were obtained in a remarkably shortened reaction time; in 10 min gluconic acid was obtained with up to 76% yields with 0.09 mol% Au/Al2O3 and hydrogen peroxide as oxidant. Very high turn-over frequencies over 10,000 h- 1 were measured for the microwave assisted oxidation. Moreover, the catalyst activity remained constant in four consecutive runs, even though minor particle growth was observed.

Original language	English
Pages (from-to)	115-118
Journal	Catalysis Communications
Volume	74
DOIs	https://doi.org/10.1016/j.catcom.2015.11.014
Publication status	Published - 2016
MoE publication type	A1 Journal article-refereed

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Keywords

oxidation
carbohydrates
heterogeneous catalysis
gold
microwave chemistry

Cite this

Rautiainen, S., Lehtinen, P., Vehkamäki, M., Niemelä, K., Kemell, M., Heikkilä, M., & Repo, T. (2016). Microwave-assisted base-free oxidation of glucose on gold nanoparticle catalysts. Catalysis Communications, 74, 115-118. https://doi.org/10.1016/j.catcom.2015.11.014

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abstract = "Base-free oxidation of glucose to gluconic acid with supported gold catalysts was studied using microwave heating. High conversion and selectivity were obtained in a remarkably shortened reaction time; in 10 min gluconic acid was obtained with up to 76% yields with 0.09 mol% Au/Al2O3 and hydrogen peroxide as oxidant. Very high turn-over frequencies over 10,000 h- 1 were measured for the microwave assisted oxidation. Moreover, the catalyst activity remained constant in four consecutive runs, even though minor particle growth was observed.",

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AU - Rautiainen, Sari

AU - Lehtinen, Petra

AU - Vehkamäki, Marko

AU - Niemelä, Klaus

AU - Kemell, Marianna

AU - Heikkilä, Mikko

AU - Repo, Timo

PY - 2016

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N2 - Base-free oxidation of glucose to gluconic acid with supported gold catalysts was studied using microwave heating. High conversion and selectivity were obtained in a remarkably shortened reaction time; in 10 min gluconic acid was obtained with up to 76% yields with 0.09 mol% Au/Al2O3 and hydrogen peroxide as oxidant. Very high turn-over frequencies over 10,000 h- 1 were measured for the microwave assisted oxidation. Moreover, the catalyst activity remained constant in four consecutive runs, even though minor particle growth was observed.

AB - Base-free oxidation of glucose to gluconic acid with supported gold catalysts was studied using microwave heating. High conversion and selectivity were obtained in a remarkably shortened reaction time; in 10 min gluconic acid was obtained with up to 76% yields with 0.09 mol% Au/Al2O3 and hydrogen peroxide as oxidant. Very high turn-over frequencies over 10,000 h- 1 were measured for the microwave assisted oxidation. Moreover, the catalyst activity remained constant in four consecutive runs, even though minor particle growth was observed.

KW - oxidation

KW - carbohydrates

KW - heterogeneous catalysis

KW - gold

KW - microwave chemistry

U2 - 10.1016/j.catcom.2015.11.014

DO - 10.1016/j.catcom.2015.11.014

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10.1016/j.catcom.2015.11.014