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 for this work

University of Helsinki

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

41 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

Keywords

oxidation
carbohydrates
heterogeneous catalysis
gold
microwave chemistry

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10.1016/j.catcom.2015.11.014

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title = "Microwave-assisted base-free oxidation of glucose on gold nanoparticle catalysts",

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.",

keywords = "oxidation, carbohydrates, heterogeneous catalysis, gold, microwave chemistry",

author = "Sari Rautiainen and Petra Lehtinen and Marko Vehkam{\"a}ki and Klaus Niemel{\"a} and Marianna Kemell and Mikko Heikkil{\"a} and Timo Repo",

year = "2016",

doi = "10.1016/j.catcom.2015.11.014",

language = "English",

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pages = "115--118",

journal = "Catalysis Communications",

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T1 - Microwave-assisted base-free oxidation of glucose on gold nanoparticle catalysts

AU - Rautiainen, Sari

AU - Lehtinen, Petra

AU - Vehkamäki, Marko

AU - Niemelä, Klaus

AU - Kemell, Marianna

AU - Heikkilä, Mikko

AU - Repo, Timo

PY - 2016

Y1 - 2016

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

M3 - Article

SN - 1566-7367

VL - 74

SP - 115

EP - 118

JO - Catalysis Communications

JF - Catalysis Communications

ER -

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

Abstract

Keywords

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