Electrochemical conversion of aqueous ethanol solution in an electrolyzer with a solid polymer electrolyte

Pushkareva, I. V.; Pushkarev, Artem S.; Grigoriev, S.A.; Lyutikova, E. K.; Akel’kina, S. V.; Osina, M. A.; Slavcheva, E.; Фатеев, В. Н.

doi:10.1134/s1070427216120260

Cited by 13 publications

(4 citation statements)

References 4 publications

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“…The selectivity of complete EtOH oxidation is not very important in the case of DEFCs (where power density is a more important output), but it is crucial in the case of EtOH conversion. The electrochemical conversion of EtOH in electrochemical cells with a PEM has been suggested to be a very promising approach to hydrogen generation, because the theoretical cell voltage for the electrochemical decomposition of EtOH is lower than the theoretical cell voltage for water electrolysis [2,7]. Furthermore, because hydrogen is the main target product here, the completeness of EtOH oxidation to carbon dioxide is of great importance.…”

Section: Introductionmentioning

confidence: 99%

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Pt/C and Pt/SnOx/C Catalysts for Ethanol Electrooxidation: Rotating Disk Electrode Study

et al. 2019

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Pt/C and Pt/SnOx/C catalysts were synthesized using the polyol method. Their structure, morphology and chemical composition were studied using a scanning electron microscope equipped with an energy dispersive X-ray spectrometer, transition electron microscope and X-ray photoelectron spectroscope. Electrochemical measurements were based on the results of rotating disk electrode (RDE) experiments applied to ethanol electrooxidation. The quick evaluation of catalyst activity, electrochemical behavior, and an average number of transferred electrons were made using the RDE technique. The usage of SnOx (through the carbon support modification) in a binary system together with Pt causes a significant increase of the catalyst activity in ethanol oxidation reaction and the utilization of ethanol.

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Section: Introductionmentioning

confidence: 99%

“…Furthermore, because hydrogen is the main target product here, the completeness of EtOH oxidation to carbon dioxide is of great importance. [2,7]. Furthermore, because hydrogen is the main target product here, the completeness of EtOH oxidation to carbon dioxide is of great importance.…”

Section: Introductionmentioning

confidence: 99%

Pt/C and Pt/SnOx/C Catalysts for Ethanol Electrooxidation: Rotating Disk Electrode Study

et al. 2019

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“…Nanostructured Ir black used as an anode electrocatalysts was synthesized via the electrochemical reduction of the precursor H 2 IrCl 6 ⋅ 6H 2 O with the use of NaBH 4 as a reducing agent [ 25 ].…”

Section: Methodsmentioning

confidence: 99%

The Study of the Solid Polymer Electrolyte Oxygen Concentrator with Nanostructural Catalysts Based on Hydrophobized Support

et al. 2020

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“…Although this energy requirement can be lowered by employing appropriate electrocatalysts, an intriguing alternative to this is to replace the OER with an anode couple that does not (at least in theory) require such significant overpotentials. To this end, the electrolysis of organic compounds as a route to H 2 production has garnered some interest [20][21][22][23][24]. Provided that the organic substrates that are being oxidised are renewable (e.g., they are derived from plant-based material), then such a system would allow the production of hydrogen from water at lower potentials than the direct electrolysis of water to O 2 and H 2 without adding to the long-term concentration of CO 2 in the atmosphere.…”

Section: Introductionmentioning

confidence: 99%

An Investigation of a (Vinylbenzyl) Trimethylammonium and N-Vinylimidazole-Substituted Poly (Vinylidene Fluoride-Co-Hexafluoropropylene) Copolymer as an Anion-Exchange Membrane in a Lignin-Oxidising Electrolyser

et al. 2021

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Electrolysis is seen as a promising route for the production of hydrogen from water, as part of a move to a wider “hydrogen economy”. The electro-oxidation of renewable feedstocks offers an alternative anode couple to the (high-overpotential) electrochemical oxygen evolution reaction for developing low-voltage electrolysers. Meanwhile, the exploration of new membrane materials is also important in order to try and reduce the capital costs of electrolysers. In this work, we synthesise and characterise a previously unreported anion-exchange membrane consisting of a fluorinated polymer backbone grafted with imidazole and trimethylammonium units as the ion-conducting moieties. We then investigate the use of this membrane in a lignin-oxidising electrolyser. The new membrane performs comparably to a commercially-available anion-exchange membrane (Fumapem) for this purpose over short timescales (delivering current densities of 4.4 mA cm−2 for lignin oxidation at a cell potential of 1.2 V at 70 °C during linear sweep voltammetry), but membrane durability was found to be a significant issue over extended testing durations. This work therefore suggests that membranes of the sort described herein might be usefully employed for lignin electrolysis applications if their robustness can be improved.

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Electrochemical conversion of aqueous ethanol solution in an electrolyzer with a solid polymer electrolyte

Cited by 13 publications

References 4 publications

Pt/C and Pt/SnOx/C Catalysts for Ethanol Electrooxidation: Rotating Disk Electrode Study

Pt/C and Pt/SnOx/C Catalysts for Ethanol Electrooxidation: Rotating Disk Electrode Study

The Study of the Solid Polymer Electrolyte Oxygen Concentrator with Nanostructural Catalysts Based on Hydrophobized Support

An Investigation of a (Vinylbenzyl) Trimethylammonium and N-Vinylimidazole-Substituted Poly (Vinylidene Fluoride-Co-Hexafluoropropylene) Copolymer as an Anion-Exchange Membrane in a Lignin-Oxidising Electrolyser

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