Enhanced n-propanol oxidation coupled with hydrogen evolution by electrocatalytic membrane structured reactor via flow-through operation

Yang, Mingxia; Fan, Senqing; Chen, Jiaojiao; Chen, Yu; Li, Chuang; Meng, Jiaxin; Qing, Haijie; Liu, Yangchao; Xiao, Zeyi

doi:10.1016/j.ces.2023.118923

Cited by 4 publications

(3 citation statements)

References 33 publications

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“…As depicted in Figure 6b, the experimentally measured hydrogen production during constant voltage electrolysis is closely aligned with theoretically calculated volume, indicating a near 100 % FE for hydrogen production. [57] Furthermore, the constant voltage electrolysis at 1.70 V consistently yielded IBAc production, maintaining stable FEs of IBAc in five hours (Figure S16). These results confirm the significant potential of the integrated eIBAOR and HER system within an undivided cell for future applications in the co-production of IBAc and hydrogen.…”

Section: Two-electrode Undivided Cell Testmentioning

confidence: 92%

Energy‐Saving Electrochemical Hydrogen Production Coupled with Biomass‐Derived Isobutanol Upgrading

Du,

Zhao,

Zhang

et al. 2024

ChemSusChem

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The widespread application of electrochemical hydrogen production faces significant challenges, primarily attributed to the high overpotential of the oxygen evolution reaction (OER) in conventional water electrolysis. To address this issue, an effective strategy involves substituting OER with the value‐added oxidation of biomass feedstock, reducing the energy requirements for electrochemical hydrogen production while simultaneously upgrading the biomass. Herein, we introduce an electrocatalytic approach for the value‐added oxidation of isobutanol, a high energy density bio‐fuel, coupled with hydrogen production. This approach offers a sustainable route to produce the valuable fine chemical isobutyric acid under mild condition. The electrodeposited Ni(OH)2 electrocatalyst exhibits exceptional electrocatalytic activity and durability for the electro‐oxidation of isobutanol, achieving an impressive faradaic efficiency of up to 92.4% for isobutyric acid at 1.45 V vs. RHE. Mechanistic insights reveal that side reactions predominantly stem from the oxidative C–C cleavage of isobutyraldehyde intermediate, forming by‐products including formic acid and acetone. Furthermore, we demonstrate the electro‐oxidation of isobutanol coupled with hydrogen production in a two‐electrode undivided cell, notably reducing the electrolysis voltage by approximately 180 mV at 40 mA cm‐2. Overall, this work represents a significant step towards improving the cost‐effectiveness of hydrogen production and advancing the conversion of bio‐fuels.

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Section: Two-electrode Undivided Cell Testmentioning

confidence: 92%

Energy‐Saving Electrochemical Hydrogen Production Coupled with Biomass‐Derived Isobutanol Upgrading

Du,

Zhao,

Zhang

et al. 2024

ChemSusChem

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“…Non-noble metal catalysts, including transition metal oxides, carbides, nitrides, and sulfides, have shown promising electrocatalytic performance. 277,322 In noticeable example, a series of LaFe 1− x Co x O 3 perovskite catalysts were developed to enable electrocatalytic OER, isopropanol oxidation reaction, and glycerol oxidation reaction. 323 The investigation focused on establishing a structure–composition–activity relationship, revealing distinct trends for anodic oxidation reactions arising from variations in active sites and involved reaction intermediates.…”

Section: Organic Upgrading-assisted H2 Productionmentioning

confidence: 99%

Water electrolysis for hydrogen production: from hybrid systems to self-powered/catalyzed devices

Ren,

Chen,

Wang

et al. 2024

Energy Environ. Sci.

126

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“…[16] In addition, this flow-through design allows for greater convection and mixing of the solution through the porous electrode material, which improves mass transfer and increases the electron transport rate. [35][36]…”

Section: Reactor Comparisonmentioning

confidence: 99%

Construction of a Zero‐gap Flow‐Through Microfluidic Reactor with Porous RuO₂‐IrO₂@Pt Anode for Electrocatalytic Oxidation of Antibiotics in Water

Zhu,

Wang,

et al. 2024

Chemistry An Asian Journal

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In this study, a zero‐gap flow‐through microfluidic reactor was constructed for the degradation of tetracycline and norfloxacin in water using a porous Ti/RuO2‐IrO2@Pt electrode as the anode and porous titanium plate as the cathode. The operation parameters included electrolyte type, electrolyte concentration, current density, initial concentration of pollutants and pH, were investigated. The degradation efficiency and energy consumption were calculated and compared with traditional electrolyzer. In the zero‐gap flow‐through microfluidic reactor, 100% of both tetracycline and norfloxacin can be decomposed in 15 min, and high mineralization rate were achieved under the optimized reaction condition. And the reaction was consistent with pseudo‐first‐order kinetics with k value of 0.492 cm‐1 and 1.010 cm‐1, for tetracycline and norfloxacin, respectively. In addition, the energy consumption was 28.33 kWh kg‐1 TC and 8.36 kWh kg‐1 NOR, for tetracycline and norfloxacin, respectively, which was much lower than that of traditional electrolyzer. The LC‐MS results showed that tetracycline underwent a series of demethylation, dehydration and deamination reactions, and the norfloxacin went through ring opening reaction, decarboxylation and hydroxylation reaction, and finally both produced CO2 and H2O.

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Enhanced n-propanol oxidation coupled with hydrogen evolution by electrocatalytic membrane structured reactor via flow-through operation

Cited by 4 publications

References 33 publications

Energy‐Saving Electrochemical Hydrogen Production Coupled with Biomass‐Derived Isobutanol Upgrading

Energy‐Saving Electrochemical Hydrogen Production Coupled with Biomass‐Derived Isobutanol Upgrading

Water electrolysis for hydrogen production: from hybrid systems to self-powered/catalyzed devices

Construction of a Zero‐gap Flow‐Through Microfluidic Reactor with Porous RuO₂‐IrO₂@Pt Anode for Electrocatalytic Oxidation of Antibiotics in Water

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Enhanced n-propanol oxidation coupled with hydrogen evolution by electrocatalytic membrane structured reactor via flow-through operation

Cited by 4 publications

References 33 publications

Energy‐Saving Electrochemical Hydrogen Production Coupled with Biomass‐Derived Isobutanol Upgrading

Energy‐Saving Electrochemical Hydrogen Production Coupled with Biomass‐Derived Isobutanol Upgrading

Water electrolysis for hydrogen production: from hybrid systems to self-powered/catalyzed devices

Construction of a Zero‐gap Flow‐Through Microfluidic Reactor with Porous RuO2‐IrO2@Pt Anode for Electrocatalytic Oxidation of Antibiotics in Water

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Product

Resources

About

Construction of a Zero‐gap Flow‐Through Microfluidic Reactor with Porous RuO₂‐IrO₂@Pt Anode for Electrocatalytic Oxidation of Antibiotics in Water