Electrooxidation of methanol and ethanol on carbon electrodeposited Ni–MgO nanocomposite

Hassan, H.B.; Hamid, Z. Abdel; El‐Sherif, Rabab M.

doi:10.1016/s1872-2067(15)61034-8

Cited by 20 publications

(4 citation statements)

References 61 publications

(63 reference statements)

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“…The working, counter, and reference electrodes were a Ni foam-supported specimen (1.5 cm 2 geometric area), a platinum mesh and a Hg/HgO (MMO) electrode (typically employed in alkaline media), [15][16][17][18] respectively. The electrolyte was a 0.5 M ethanol in aqueous KOH solution (0.5 M).…”

mentioning

confidence: 99%

Engineering Au/MnO₂ hierarchical nanoarchitectures for ethanol electrochemical valorization

et al. 2020

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confidence: 99%

Engineering Au/MnO₂ hierarchical nanoarchitectures for ethanol electrochemical valorization

et al. 2020

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“…The electrocatalytic MOR performance of the Cu-O|Cu 3 P heterostructure that is grown over Cu foil is much better than some earlier reports, such as Cu(OH) 2 −CuO nanoneedle array on the Cu foil [ 52 ]; NPC dealloyed by Cu 66 Ti 30 Ni 4 amorphous ribbon [ 40 ], Ni-MgO/C [ 53 ], NF-converted NiO/NF [ 54 ] hierarchical porous Co 3 O 4 /NiCo 2 O 4 [ 55 ], and ZnCo 2 O 4 NPs on Ni foam [ 56 ], as given in Table 1 . Cu 3 P|Cu-O achieves the high current density of 232.5 V at the low potential of 0.65 V vs. Hg/HgO, while other reported self-standing electrodes achieve high current densities at higher potential.…”

Section: Electrocatalytic Mor Studymentioning

confidence: 90%

One-Step Synthesis of a Binder-Free, Stable, and High-Performance Electrode; Cu-O|Cu3P Heterostructure for the Electrocatalytic Methanol Oxidation Reaction (MOR)

et al. 2023

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Although direct methanol fuel cells (DMFCs) have been spotlighted in the past decade, their commercialization has been hampered by the poor efficiency of the methanol oxidation reaction (MOR) due to the unsatisfactory performance of currently available electrocatalysts. Herein, we developed a binder-free, copper-based, self-supported electrode consisting of a heterostructure of Cu3P and mixed copper oxides, i.e., cuprous–cupric oxide (Cu-O), as a high-performance catalyst for the electro-oxidation of methanol. We synthesized a self-supported electrode composed of Cu-O|Cu3P using a two-furnace atmospheric pressure–chemical vapor deposition (AP-CVD) process. High-resolution transmission electron microscopy analysis revealed the formation of 3D nanocrystals with defects and pores. Cu-O|Cu3P outperformed the MOR activity of individual Cu3P and Cu-O owing to the synergistic interaction between them. Cu3P|Cu-O exhibited a highest anodic current density of 232.5 mAcm−2 at the low potential of 0.65 V vs. Hg/HgO, which is impressive and superior to the electrocatalytic activity of its individual counterparts. The formation of defects, 3D morphology, and the synergistic effect between Cu3P and Cu-O play a crucial role in facilitating the electron transport between electrode and electrolyte to obtain the optimal MOR activity. Cu-O|Cu3P shows outstanding MOR stability for about 3600 s with 100% retention of the current density, which proves its robustness alongside CO intermediate.

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“…Although, DMFC have been discovered more than 25 years ago, the development of them still requires increased attention and effort. MOR efficiency in alkaline electrolyte is better than in acid solutions [3].…”

Section: Introductionmentioning

confidence: 87%

Calcium-Doped Y114 Layered Cobalt Perovskite, a Promising Anodic Material for Direct Methanol Fuel Cell

Craia-Joldes

Dan

Duca

et al. 2018

AEF

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In this paper, calcium doped cobalt layered perovskite type 114 electrode electrocatalytic activity for methanol oxidation reaction (MOR) in aqueous alkaline solution (1 M KOH) has been investigated in order to find the relationship between methanol concentration in the solution and oxidation potential, current density, and oxidation efficiency. For a complete characterization of MOR on this electrode, several electrochemical methods were used: chronoamperometry, chronopotentiometry, chronocoulometry. Also, in order to understand the oxidation mechanism, kinetic parameters were determined using Tafel method and electrochemical impedance spectroscopy (EIS) was performed. MOR on layered cobalt perovskite electrodes becomes a serious issue, especially due to their use as anode in alkaline fuel cells.

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Electrooxidation of methanol and ethanol on carbon electrodeposited Ni–MgO nanocomposite

Cited by 20 publications

References 61 publications

Engineering Au/MnO₂ hierarchical nanoarchitectures for ethanol electrochemical valorization

Engineering Au/MnO₂ hierarchical nanoarchitectures for ethanol electrochemical valorization

One-Step Synthesis of a Binder-Free, Stable, and High-Performance Electrode; Cu-O|Cu3P Heterostructure for the Electrocatalytic Methanol Oxidation Reaction (MOR)

Calcium-Doped Y114 Layered Cobalt Perovskite, a Promising Anodic Material for Direct Methanol Fuel Cell

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Electrooxidation of methanol and ethanol on carbon electrodeposited Ni–MgO nanocomposite

Cited by 20 publications

References 61 publications

Engineering Au/MnO2 hierarchical nanoarchitectures for ethanol electrochemical valorization

Engineering Au/MnO2 hierarchical nanoarchitectures for ethanol electrochemical valorization

One-Step Synthesis of a Binder-Free, Stable, and High-Performance Electrode; Cu-O|Cu3P Heterostructure for the Electrocatalytic Methanol Oxidation Reaction (MOR)

Calcium-Doped Y114 Layered Cobalt Perovskite, a Promising Anodic Material for Direct Methanol Fuel Cell

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Engineering Au/MnO₂ hierarchical nanoarchitectures for ethanol electrochemical valorization

Engineering Au/MnO₂ hierarchical nanoarchitectures for ethanol electrochemical valorization