Aerobic oxidation of glucose and 1-phenylethanol over gold nanoparticles directly deposited on ion-exchange resins

Ishida, Tamao; Okamoto, Shinpei; Makiyama, Risa; Haruta, Masatake

doi:10.1016/j.apcata.2008.10.049

Cited by 43 publications

(21 citation statements)

References 36 publications

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“…However, there are several reports on the use of colloidal gold catalysts 4. 29, 40 Rossi and co‐workers revealed for the first time that “naked” gold clusters are catalytically active for aerobic oxidation of glucose, although the catalysts are degraded as a result of the reaction. Their naked gold clusters actually exhibited a very high activity, with a TOF of 50 120 h −1 , which is almost comparable with that of glucose oxidase 4.…”

Section: Other Oxidation Reactionsmentioning

confidence: 99%

Aerobic Oxidations Catalyzed by Colloidal Nanogold

Tsukuda

Tsunoyama

Sakurai

2011

Chemistry An Asian Journal

176

137

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Recently, dispersions of gold nanoclusters in liquid media (colloidal nanogold) have been extensively used as quasi-homogeneous catalysts for various aerobic oxidation reactions. This review describes recent progress in such reactions, with a focus on our comprehensive studies on gold clusters (<2 nm) stabilized by poly(N-vinyl-2-pyrrolidone) and their participation in oxidation reactions of alcohols, α-hydroxylation reactions of benzylic ketones, and homocoupling reactions of organoboronates, as well as formal Lewis acidic reactions, such as intramolecular hydroalkoxylation and hydroamination reactions of nonactivated alkenes. Mechanistic studies have shown that a partial electron transfer from the gold clusters to O(2) generates superoxide- or peroxide-like species and Lewis acidic centers, both of which play essential roles in the catalytic reactions.

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Section: Other Oxidation Reactionsmentioning

confidence: 99%

Aerobic Oxidations Catalyzed by Colloidal Nanogold

Tsukuda

Tsunoyama

Sakurai

2011

Chemistry An Asian Journal

176

137

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“…The activity of Au/CeO 2 -Al 2 O 3 catalysts in glucose oxidation with oxygen as oxidant was found to be even higher than that of the Au/ Al 2 O 3 catalyst [ 115 ]. Glucose oxidation over polymer-supported gold nanoparticles has attracted limited interest due to lower catalytic activity than Au supported on carbon or metal oxides [ 123 ]. Biffi s et al reported that gold nanoclusters of small size (2.5 nm) stabilized by polymer microgel supports exhibited high TOF of 450 h −1 on glucose oxidation at 50 °C and pH 9.5, nearly one-fi fth of that of Au/C in spite of the small size of Au NPs [ 124 ].…”

Section: Selective Oxidation Of Glucose To Gluconic Acidmentioning

confidence: 99%

“…Biffi s et al reported that gold nanoclusters of small size (2.5 nm) stabilized by polymer microgel supports exhibited high TOF of 450 h −1 on glucose oxidation at 50 °C and pH 9.5, nearly one-fi fth of that of Au/C in spite of the small size of Au NPs [ 124 ]. However, Haruta's group [ 123 ] found that gold nanoparticles on strongly basic anion-exchange resins such as quaternary ammonium salt (-N + Me 3 ) exhibited remarkable catalytic activity, up to TOF of 27,000 h −1 (7.5 s −1 ) for glucose oxidation at 60 °C and pH 9.5. The catalytic activity for the oxidation of glucose with molecular oxygen was more greatly infl uenced by the basic nature of polymer supports than by the size of gold nanoparticles.…”

Section: Selective Oxidation Of Glucose To Gluconic Acidmentioning

confidence: 99%

Catalytic Oxidation Pathways for the Production of Carboxylic Acids from Biomass

Yang

et al. 2016

Green Chemistry and Sustainable Technology

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The transition from a fossil chemical industry to a renewable chemical industry depends on breakthroughs in the research and development on the most promising alternatives. Biomass is such a class of renewable raw carbon materials for the production of fuels and chemicals, with growing interest among researchers aiming to achieve global sustainability. Catalytic oxidation of biomass can lead to multiple products, and the challenge is to direct the reaction pathways to the desired products. Organic acids are among the listed "platform molecules," which have the potential to be further converted into high-value-added chemicals. In this chapter, various pathways are reviewed for catalytic oxidation of a variety of biomass to produce value-added organic acids.

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“…Baatz et al observed very high activity and long-term stability at very low gold content on alumina support [1]. Ishida et al and Önal et al studied the nanoparticles size effect [2,3]. Very high activity was observed at very low gold content and they observed that smaller particles are more active.…”

mentioning

confidence: 93%

Catalytic Characterization of Size Based Gold Nanoparticles for Applications in Fuel Cells

Al-Hatti

Shaikha

Al-Shamisi

et al. 2014

ICREGA’14 - Renewable Energy: Generation and Applications

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Considerable research attention has been given to glucose biofuel cells as they have been recognized for their ability to work under ambient temperatures and a range of pH that makes them suitable for in vivo implantation to power, with body glucose, implantable electronic devices. In this work, we have employed a different approach compared to organic enzymes to facilitate the fabrication of biofuel cell with no organic enzymes. Gold and platinum nanoparticles were synthesized as oxidizing agents and compared their effectiveness in our fabricated biofuel cell. The nanoparticles were placed on a conductive carbon structure. We have found that the gold nanoparticles are more effective as catalyst capable of converting glucose into gluconic acid compared with that of platinum particles. We further found that the concentration of nanoparticles in the cell may not benefit the catalysis of the glucose due to the decrease of surface area to volume ratio as the nanoparticles' concentration increases. Our fabricated fuel cell showed a capability of running multiple cycles, once the medium is adjusted to optimal operation conditions.

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Aerobic oxidation of glucose and 1-phenylethanol over gold nanoparticles directly deposited on ion-exchange resins

Cited by 43 publications

References 36 publications

Aerobic Oxidations Catalyzed by Colloidal Nanogold

Aerobic Oxidations Catalyzed by Colloidal Nanogold

Catalytic Oxidation Pathways for the Production of Carboxylic Acids from Biomass

Catalytic Characterization of Size Based Gold Nanoparticles for Applications in Fuel Cells

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