High performance of electrocatalytic oxidation in direct glucose fuel cell using molybdate nanostructures synthesized by microwave-assisted method

Khoobi, Asma; Salavati‐Niasari, Masoud

doi:10.1016/j.energy.2019.04.143

Cited by 31 publications

(18 citation statements)

References 34 publications

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“…XRD pattern of Ru/CNT catalyst is shown in Figure 1B. XRD technique is used to obtain information about the crystal structure and the phases containing the material 28,29 . C (0 0 2) plane, belonging the hexagonal carbon structure, was obtained at 2 θ = 25.5°.…”

Section: Resultsmentioning

confidence: 99%

Highly active carbon nanotube supported iridium, copper, ruthenium catalysts for glucose electrooxidation

Kıvrak

2021

Energy Storage

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Herein, carbon nanotube (CNT) supported ruthenium (Ru), iridium (Ir), and copper (Cu) catalysts at 0.1 to 20 wt% metal loading are prepared by the NaBH4 reduction method for glucose electrooxidation reaction (GER). These catalysts are successfully characterized by X‐ray diffraction, scanning electron microscope, and N2 adsorption‐desorption measurements. Voltammetric measurements of these catalysts are taken using cyclic voltammetry and chronoamperometry techniques. The crystallite sizes of these catalysts are calculated as 2.53 nm for Ru/CNT, 2.94 nm for Ir/CNT, and 13.06 nm for Cu/CNT by using Scherrer equation. For GER, 10% Ru/CNT, 0.1% Ir/CNT, and 0.5% Cu/CNT catalysts have high current densities as 1.86 mA cm−2 (160.6 mA mg−1 Ru), 3.03 mA cm−2 (23 857.2 mA mg−1 Ir), and 1.12 mA cm−2 (1768.8 mA mg−1 Cu), respectively. These catalysts have also good stability. Results reveal that 10% Ru/CNT, 0.1% Ir/CNT, and 0.5% Cu/CNT catalysts are promising catalysts as direct glucose fuel cell anode catalysts.

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Section: Resultsmentioning

confidence: 99%

Highly active carbon nanotube supported iridium, copper, ruthenium catalysts for glucose electrooxidation

Kıvrak

2021

Energy Storage

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“…Previously, glucose oxidation reaction (GcOR) was widely used in sensors and fuel cells. [130][131][132] More recently, glucose-assisted HWE (also called glucose electrolysis) has attracted researchers' attention for efficient H 2 production in terms of small theoretical thermodynamics potential of the GcOR. For instance, 3D NiFe oxide (NiFeO x ) and nitride (NiFeN x ) both derived from NiFe LDH nanosheet arrays were reported by Yu and Huber for the GcOR and the HER (Figure 10g), [122] respectively.…”

Section: Wwwadvancedsciencenewscommentioning

confidence: 99%

Earth‐Abundant Metal‐Based Electrocatalysts Promoted Anodic Reaction in Hybrid Water Electrolysis for Efficient Hydrogen Production: Recent Progress and Perspectives

Deng

Toe

Xuan

et al. 2022

Advanced Energy Materials

125

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Figure 14. a) Schematic diagram of the ammonia-assisted HWE electrolyzer. b) LSVs curves of LNCO55-Ar and Pt/C. c) Electrolysis current density at 1.23 V, and d) the concentration profile of ammonia and removal efficiency of LNCO55-Ar. Reproduced with permission. [219] Copyright 2021, Wiley-VCH. e) Schematic illustration of the AmOR over ternary NiCuFe oxyhydroxide. f) Energy barrier profiles of different reaction steps in NiCuFe oxyhydroxide and NiCu oxyhydroxide via pathway II. Charge difference g) in NiCu oxyhydroxide system, and h) NiCuFe oxyhydroxide. Reproduced with permission. [221] Copyright 2021, Wiley-VCH. i) Performance comparison of sulfide oxidation and OER catalyzed by CoNi@NGs. j) Photo of the H 2 S electrolysis device driven by a 1.2 V commercial battery directly. k) FE and H 2 evolution rates in a galvanostatic test at 100 mA cm −2 . l) Comparison of the projected density of states of S(3p) and its bonded C(2p) when S is adsorbed on the surface of pristine graphene, CoNi@Gs and CoNi@NGs. m) Free energy profiles of the formation of polysulfides (S x *) in the aqueous solution on N-Graphene's surface and CoNi@NGs' surface. Reproduced with permission. [222]

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“…Theoretically, the glucose oxidation reaction (GOR) releases 24 electrons for each glucose molecule in reaction with water. 28 − 30 However, the poisoning of anode catalysts by intermediate oxides and the slow electrochemical kinetics of glucose oxidation are significant obstacles. 31 − 35 Due to the difficulty of glucose oxidation, most of the glucose (C 6 H 12 O 6 ) is oxidized to gluconic acid (C 6 H 12 O 7 ) and emits two electrons.…”

Section: Introductionmentioning

confidence: 99%

“…In an alkaline medium supplied with a strong alkaline solution and an anion exchange membrane (AEM), glucose is oxidized more easily, and higher performance can be achieved. ,,, However, because the pH of body fluids containing glucose cannot be alkaline, it cannot be used in implantable medical device applications. Theoretically, the glucose oxidation reaction (GOR) releases 24 electrons for each glucose molecule in reaction with water. − However, the poisoning of anode catalysts by intermediate oxides and the slow electrochemical kinetics of glucose oxidation are significant obstacles. − Due to the difficulty of glucose oxidation, most of the glucose (C 6 H 12 O 6 ) is oxidized to gluconic acid (C 6 H 12 O 7 ) and emits two electrons. ,, This limits the performance of the glucose fuel cell to levels considerably lower than the theoretical energy density. , …”

Section: Introductionmentioning

confidence: 99%

Effects of the Anode Diffusion Layer on the Performance of a Nonenzymatic Electrochemical Glucose Fuel Cell with a Proton Exchange Membrane

et al. 2021

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It is necessary to apply a nonenzymatic glucose fuel cell using a proton exchange membrane for an implantable biomedical device that operates at low power. The permeability of glucose with high viscosity and a large molecular weight in the porous medium of the diffusion layer was investigated for use in fuel cells. Carbon paper was prepared as an anode diffusion layer, and it was analyzed with a diffusion layer treated with polytetrafluoroethylene (PTFE) and a microporous layer (MPL). When untreated carbon paper was applied, the peak power density (PPD) and open-circuit voltage (OCV) increased as the glucose concentration and flow rate increased. On this occasion, the highest PPD of 17.81 μW cm –2 was achieved at 3 mM and a 2.0 mL min –1 glucose aqueous solution (at atmospheric pressure and 36.5 °C). The diffusion layer, which became more hydrophobic through PTFE treatment, adversely affected glucose permeability. In addition, the addition of an MPL decreased OCV and PPD with increasing glucose concentrations and flow rates. Compared with untreated carbon paper, the PPD was six times lower approximately. Consequently, it was confirmed that the properties of carbon paper, such as low hydrophobicity, high porosity, and thin thickness, would be advantageous for nonenzymatic glucose fuel cells.

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High performance of electrocatalytic oxidation in direct glucose fuel cell using molybdate nanostructures synthesized by microwave-assisted method

Cited by 31 publications

References 34 publications

Highly active carbon nanotube supported iridium, copper, ruthenium catalysts for glucose electrooxidation

Highly active carbon nanotube supported iridium, copper, ruthenium catalysts for glucose electrooxidation

Earth‐Abundant Metal‐Based Electrocatalysts Promoted Anodic Reaction in Hybrid Water Electrolysis for Efficient Hydrogen Production: Recent Progress and Perspectives

Effects of the Anode Diffusion Layer on the Performance of a Nonenzymatic Electrochemical Glucose Fuel Cell with a Proton Exchange Membrane

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