Recent progress in electrochemical oxidation of saccharides at gold and copper electrodes in alkaline solutions

Torto, Nelson

doi:10.1016/j.bioelechem.2009.06.009

Cited by 35 publications

(20 citation statements)

References 62 publications

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“…Low selectivity and productivity, metal leaching and poor catalyst stability still represent important problems to be overcome for industrial deployment. Electrochemical routes were also reported89. These reactions however need pH-controlled conditions, lead to limited yields of glucuronic acid (2%) and require costly metal (Au or Cu) as electrodes.…”

mentioning

confidence: 99%

Selective and Catalyst-free Oxidation of D-Glucose to D-Glucuronic acid induced by High-Frequency Ultrasound

Amaniampong

Karam

Trịnh

et al. 2017

Sci Rep

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This systematic experimental investigation reveals that high-frequency ultrasound irradiation (550 kHz) induced oxidation of D-glucose to glucuronic acid in excellent yield without assistance of any (bio)catalyst. Oxidation is induced thanks to the in situ production of radical species in water. Experiments show that the dissolved gases play an important role in governing the nature of generated radical species and thus the selectivity for glucuronic acid. Importantly, this process yields glucuronic acid instead of glucuronate salt typically obtained via conventional (bio)catalyst routes, which is of huge interest in respect of downstream processing. Investigations using disaccharides revealed that radicals generated by high frequency ultrasound were also capable of promoting tandem hydrolysis/oxidation reactions.

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confidence: 99%

Selective and Catalyst-free Oxidation of D-Glucose to D-Glucuronic acid induced by High-Frequency Ultrasound

Amaniampong

Karam

Trịnh

et al. 2017

Sci Rep

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“…When the deposition time was extended to 1000 s, the 3D porous leaf‐like dendritic CuO‐CoNSs were formed (Figure C). Figure D displayed the SEM image of CuO‐CoNSs/rGO/3D‐KSC gained at the deposition time of 1400 s. It was found that the CuO‐CoNSs seriously accumulated on the surface of rGO/3D‐KSC, which might reduce the catalytic activity sites on the surface of the materials . It well known that the 3D porous foliage structure not only could accelerate the transport of the electrolyte, but also could provide a greater specific surface area in contacting with the analytes.…”

Section: Resultsmentioning

confidence: 99%

“…The active surface area of CuO-CoNSs/rGO/3D-KSC integrated electrode prepared at the electrodeposition time of 1000 s were calculated by the Randles-Sevcik equation [39] to be 1.30 10 À8 mol cm À2 , obviously larger than that of other electrodes ( Figure S2 Figure 4D displayed the SEM image of CuO-CoNSs/rGO/ 3D-KSC gained at the deposition time of 1400 s. It was found that the CuO-CoNSs seriously accumulated on the surface of rGO/3D-KSC, which might reduce the catalytic activity sites on the surface of the materials. [40][41][42] It well known that the 3D porous foliage structure not only could accelerate the transport of the electrolyte, but also could provide a greater specific surface area in contacting with the analytes. Therefore, the 3D porous leaf-like CuO-CoNSs might be better for glucose sensing.…”

Section: Electrodeposition Of the Cuo-conss/rgo/3d-ksc Integrated Elementioning

confidence: 99%

Copper Oxide−Cobalt Nanostructures/Reduced Graphene Oxide/Biomass‐Derived Macroporous Carbon for Glucose Sensing

Wang

Zhang

et al. 2017

ChemElectroChem

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A novel three‐dimensional kenaf‐stem‐derived macroporous carbon (3D‐KSC)/reduced graphene oxides (rGO) integrated electrode was constructed as a supporting matrix to deposit CuO−Co bimetallic nanostructures (CuO‐CoNSs) for electrochemical sensing of glucose. The rGO and CuO‐CoNSs were firmly grown on the channels of 3D‐KSC step‐by‐step to construct the CuO‐CoNSs/rGO/3D‐KSC integrated electrode. The obtained CuO‐CoNSs/rGO/3D‐KSC integrated electrode was carefully characterized with several techniques, such as SEM, Raman spectroscopy, FTIR, XRD, XPS, and electrochemistry. The results showed that lots of rGO covered the macropores of 3D‐KSC, which avoided the aggregation of rGO effectively and improved the utilization efficiency of 3D‐KSC. A large number of dendritic CuO‐CoNSs were subsequently grown in the macropores of the rGO/3D‐KSC integrated electrode. Owing to the hierarchical configuration, the CuO‐CoNSs/rGO/3D‐KSC integrated electrode showed superior performances for non‐enzymatic electrochemical glucose sensing with a suitable linear range (0.01–3.95 mM) and high sensitivity of 802.86 μA mM−1 cm−2. The result demonstrated that the electrode was suitable for detecting glucose in bodily fluids. The rGO/3D‐KSC might also be applied to load other NSs or enzymes for electrochemical sensing.

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“…Die selektive Oxidation von Kohlehydraten, besonders zu Uronsäure,wurde in den letzten Jahrzehnten intensiv untersucht und ist immer noch Te il aktueller Forschung. [103] Matsumoto et al berichteten über die elektrochemische Oxidation von Glucose an mit Hg-Adatomen-modifizierten Au-Elektroden, wohingegen Park et al dieselbe Reaktion an Ag-Nanopartikel-modifizierten Elektroden untersuchten. Der Schlüsselschritt dabei war der Gebrauch von TEMPO als Redoxmediator.A uf diesem Wegw urde Methyl-b-d-glucopyranosid zum entsprechenden Säurederivat oxidiert.…”

Section: Elektrochemische Umsetzung Von Zuckernunclassified

Moderne Aspekte der Elektrochemie zur Synthese hochwertiger organischer Produkte

et al. 2018

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Die stoffliche Nutzung von Elektrizität anstelle stöchiometrischer Mengen an Oxidations‐ oder Reduktionsmitteln ist ökonomisch und ökologisch sehr attraktiv und stellt eine wichtige Triebkraft für die Forschungen in der Elektrosynthese dar. Um den Elektronentransfer an der Elektrode für eine organische Umsetzung zu nutzen, müssen die intermediär gebildeten Radikalspezies stabilisiert werden. Die Kombination der Elektrosynthese mit anderen Ansätzen der organischen Chemie oder aktuellen Synthesekonzepten ermöglicht die Entwicklung effizienter Synthesewege. Die zentrale Aufgabe des 21. Jahrhunderts besteht darin, möglichst wenig fossilen Kohlenstoff zu verwenden, weshalb die Nutzung erneuerbarer Energien immer wichtiger wird. Von steigendem Interesse ist auch die direkte Umsetzung erneuerbarer Rohstoffe, die zuvor hauptsächlich verbrannt wurden. Dieser Aufsatz gibt einen Überblick über viele der wichtigsten, zukunftsweisenden Entwicklungen der letzten Zeit, welche die Zukunft dieses sich rasch entwickelnden Feldes bestimmen werden.

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Recent progress in electrochemical oxidation of saccharides at gold and copper electrodes in alkaline solutions

Cited by 35 publications

References 62 publications

Selective and Catalyst-free Oxidation of D-Glucose to D-Glucuronic acid induced by High-Frequency Ultrasound

Selective and Catalyst-free Oxidation of D-Glucose to D-Glucuronic acid induced by High-Frequency Ultrasound

Copper Oxide−Cobalt Nanostructures/Reduced Graphene Oxide/Biomass‐Derived Macroporous Carbon for Glucose Sensing

Moderne Aspekte der Elektrochemie zur Synthese hochwertiger organischer Produkte

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