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)

Research output: Contribution to journalArticleScientificpeer-review

19 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 languageEnglish
Pages (from-to)115-118
JournalCatalysis Communications
Volume74
DOIs
Publication statusPublished - 2016
MoE publication typeA1 Journal article-refereed

Fingerprint

Gold
Glucose
Microwaves
Nanoparticles
Oxidation
Catalysts
Microwave heating
Acids
Oxidants
Hydrogen peroxide
Hydrogen Peroxide
Catalyst activity
gluconic acid

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
Rautiainen, Sari ; Lehtinen, Petra ; Vehkamäki, Marko ; Niemelä, Klaus ; Kemell, Marianna ; Heikkilä, Mikko ; Repo, Timo. / Microwave-assisted base-free oxidation of glucose on gold nanoparticle catalysts. In: Catalysis Communications. 2016 ; Vol. 74. pp. 115-118.
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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, vol. 74, pp. 115-118. https://doi.org/10.1016/j.catcom.2015.11.014

Microwave-assisted base-free oxidation of glucose on gold nanoparticle catalysts. / Rautiainen, Sari; Lehtinen, Petra; Vehkamäki, Marko; Niemelä, Klaus; Kemell, Marianna; Heikkilä, Mikko; Repo, Timo (Corresponding Author).

In: Catalysis Communications, Vol. 74, 2016, p. 115-118.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

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

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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

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DO - 10.1016/j.catcom.2015.11.014

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JO - Catalysis Communications

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