Electrocatalytic oxidation of readily available disaccharides in alkaline medium at gold electrode

Parpot, Píer; Muiuane, V. P.; Defontaine, V.; Bettencourt, Ana Paula

doi:10.1016/j.electacta.2009.12.087

Cited by 16 publications

(23 citation statements)

References 15 publications

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“…Parpot et al studied a direct electrochemical oxidation of trehalose using a gold electrode or a gold-nickel (70/30) alloy, in alkaline media [20]. It was postulated that combining gold and nickel in an alloy would produce a great selectivity towards the oxidation of primary alcohols (due to gold), and high current density because of the nickel atoms.…”

Section: Disaccharidesmentioning

confidence: 99%

“…A second electrolysis of d-maltose was then carried out in carbonated buffer (0.1 M, pH = 10), using the same potential plateau program. After twenty hours, 79% of the initial amount of d-maltose (20) was converted, with a selectivity up to 92% toward maltobionic acid (28), with only 3% of the dicarboxylic acid equivalent being detected, and no degradation products (Scheme 11B). out in carbonated buffer (0.1 M, pH = 10.2), and delivered lactobionic acid (26) in 91% yield.…”

Section: D-lactosementioning

confidence: 99%

“…Recently, Parpot et al described the electrochemical oxidation of cellobiose ( 19 ) and d -maltose ( 23 ) on a gold electrode in alkaline media [ 20 ]. For each disaccharide, the author conducted preliminary investigations using CV.…”

Section: Electrochemical Oxidation Of Biomassmentioning

confidence: 99%

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Electrosynthesis of Biobased Chemicals Using Carbohydrates as a Feedstock

et al. 2020

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The current climate awareness coupled with increased focus on renewable energy and biobased chemicals have led to an increased demand for such biomass derived products. Electrosynthesis is a relatively new approach that allows a shift from conventional fossil-based chemistry towards a new model of a real sustainable chemistry that allows to use the excess renewable electricity to convert biobased feedstock into base and commodity chemicals. The electrosynthesis approach is expected to increase the production efficiency and minimize negative health for the workers and environmental impact all along the value chain. In this review, we discuss the various electrosynthesis approaches that have been applied on carbohydrate biomass specifically to produce valuable chemicals. The studies on the electro-oxidation of saccharides have mostly targeted the oxidation of the primary alcohol groups to form the corresponding uronic acids, with Au or TEMPO as the active electrocatalysts. The investigations on electroreduction of saccharides focused on the reduction of the aldehyde groups to the corresponding alcohols, using a variety of metal electrodes. Both oxidation and reduction pathways are elaborated here with most recent examples. Further recommendations have been made about the research needs, choice of electrocatalyst and electrolyte as well as upscaling the technology.

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Section: Disaccharidesmentioning

confidence: 99%

Section: D-lactosementioning

confidence: 99%

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Electrosynthesis of Biobased Chemicals Using Carbohydrates as a Feedstock

et al. 2020

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“…We propose that the dissolved cellulose is first degraded into carbohydrate oligomers and monomers under the alkaline conditions. Next, the glucose residues at the end of the chain of the oligomers are oxidized to short‐chain aliphatic carboxylic acids, which is likely similar to that of glucose . This process is greatly accelerated, due to the existence of redox couple MV 2+ /MV •+ .…”

Section: Resultsmentioning

confidence: 99%

Direct Electricity Generation from Dissolved Cellulosic Biomass in an Alkaline Fuel Cell

et al. 2018

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Cellulose, which accounts for more than half of the carbon content in plants, has become a popular feedstock for biofuel production. In this work, direct electricity generation from dissolved cellulosic biomass in an alkaline fuel cell is explored without energy‐intensive process. The effect of different cellulose dissolution solvents on the electricity production is investigated. Results show dissolution treatment can remarkably affect the fuel cell performance. When NaOH/urea/thiourea is chosen as a solvent, the specific capacity of cellulose is about sixfold higher than that using only NaOH as solvent. The limiting current density and the maximum power density reach 0.85 mA cm−2 and 0.07 mW cm−2, respectively. This power density surpasses those of any existing biotic or abiotic designs. Electrochemical characterizations demonstrate that the remarkable activity improvement towards the cellulose oxidation reaction in NaOH/urea/thiourea aqueous solution is due to the lower charger transfer resistance and higher energy transfer efficiency.

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“…It is generally known that the energy problem has become an important issue in recent years. Because our fossil resources are gradually decreasing, it is necessary to develop new energy sources to solve the problem of the scarcity of raw materials [6,7]. Carbohydrates are among the most plentiful organic compounds in living organisms [8,9] and can be used as fuels in fuel cells.…”

Section: Introductionmentioning

confidence: 99%

The electrocatalytic oxidation of carbohydrates at a nickel/carbon paper electrode fabricated by the filtered cathodic vacuum arc technique

Wang

et al. 2015

Electrochimica Acta

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Electrocatalytic oxidation of readily available disaccharides in alkaline medium at gold electrode

Cited by 16 publications

References 15 publications

Electrosynthesis of Biobased Chemicals Using Carbohydrates as a Feedstock

Electrosynthesis of Biobased Chemicals Using Carbohydrates as a Feedstock

Direct Electricity Generation from Dissolved Cellulosic Biomass in an Alkaline Fuel Cell

The electrocatalytic oxidation of carbohydrates at a nickel/carbon paper electrode fabricated by the filtered cathodic vacuum arc technique

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