Electrosynthesis of eco-friendly electrocatalyst based nickel-copper bimetallic nanoparticles supported on poly-phenylenediamine with highest current density and early ethanol oxidation onset potential

Chemchoub, Sanaa; Attar, Anas El; Oularbi, Larbi; Younssi, S. Alami; Bentiss, Fouad; Jama, Charafeddine; Rhazi, Mama El

doi:10.1016/j.ijhydene.2022.09.069

Cited by 9 publications

(4 citation statements)

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“…Metallic Ni is one of the most suitable elements in the case of methanol oxidation [ 41 ] due to the fact that it can produce NiOOH/Ni(OH) 2 forms on the electrode surface, which are highly active materials in this particular reaction [ 42 ]. Furthermore, Ni can generate oxygenated species at higher values of pH and lower potentials than Pd.…”

Section: Resultsmentioning

confidence: 99%

Electrocatalytic Performance of Ethanol Oxidation on Ni and Ni/Pd Surface-Decorated Porous Structures Obtained by Molten Salts Deposition/Dissolution of Al-Ni Alloys

Kutyła

Nakajima

Fukumoto

et al. 2023

IJMS

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Ni coatings with high catalytic efficiency were synthesised in this work, obtained by increasing the active surface and modifying Pd as a noble metal. Porous Ni foam electrodes were obtained by electrodeposition of Al on a nickel substrate. Deposition of Al was carried out with potential −1.9 V for a time of 60 min in NaCl–KCl-3.5 mol%AlF3 molten salt mixture at 900 °C, which is connected with the formation of the Al-Ni phase in the solid state. Dissolution of Al and Al-Ni phases was performed by application of the potential −0.5 V, which provided the porous layer formation. The obtained porous material was compared to flat Ni plates in terms of electrocatalytic properties for ethanol oxidation in alkaline solutions. Cyclic voltammetry measurements in the non-Faradaic region revealed the improvement in morphology development for Ni foams, with an active surface area 5.5-times more developed than flat Ni electrodes. The catalytic activity was improved by the galvanic displacement process of Pd(II) ions from dilute chloride solutions (1 mM) at different times. In cyclic voltammetry scans, the highest catalytic activity was registered for porous Ni/Pd decorated at 60 min, where the maximum oxidation peak for 1 M ethanol achieved +393 mA cm−2 compared to the porous unmodified Ni electrode at +152 mA cm−2 and flat Ni at +55 mA cm−2. Chronoamperometric measurements in ethanol oxidation showed that porous electrodes were characterised by higher catalytic activity than flat electrodes. In addition, applying a thin layer of precious metal on the surface of nickel increased the recorded anode current density associated with the electrochemical oxidation process. The highest activity was recorded for porous coatings after modification in a solution containing palladium ions, obtaining a current density value of about 55 mA cm−2, and for a flat unmodified electrode, only 5 mA cm−2 after 1800 s.

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Section: Resultsmentioning

confidence: 99%

Electrocatalytic Performance of Ethanol Oxidation on Ni and Ni/Pd Surface-Decorated Porous Structures Obtained by Molten Salts Deposition/Dissolution of Al-Ni Alloys

Kutyła

Nakajima

Fukumoto

et al. 2023

IJMS

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“…The ethanol oxidation mechanism on NiCuGO composite catalysts is a complex process that involves multiple steps, with a key focus on the regeneration of active sites [72,73]. Notably, other researchers have emphasized that the activity of the system can be significantly enhanced through the incorporation of certain agents that improve electron conductivity [66,74,75]. The NiCuGO composite catalyst appears to benefit from the addition of graphene oxide, which plays a crucial role in facilitating electron transfer during the ethanol oxidation process.…”

Section: Stability During Ethanol Oxidationmentioning

confidence: 99%

Designing Sustainable Ethanol Oxidation Catalysts: The Role of Graphene Oxide in NiCuGO Composite Material

Wala-Kapica,

Szewczyk,

Simka

2024

Energies

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The growing world population with the growth of civilization is causing the demand for electric energy to increase every year. For this reason, new energy sources such as fuel cells are becoming more and more needed, especially when they can use renewable fuel such as ethanol. This simple organic alcohol can be easily produced in a fermentation process using organic waste. Its oxidation might be used as a source for electricity; however, due to the lack of proper electrocatalytic materials, such a solution is not popular. A simple method of NiCuGO composite preparation via electrodeposition from a water-based solution containing graphene oxide suspension is proposed. The activity of the prepared material is proven, with higher current densities observed for the composite powder. The highest peak current density is observed for NiCuGO deposited with a higher current density. The observed ipA of 8.6 mA cm−2 has been higher than that reported by other researchers.

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“…Indeed, the modification of the electrode with a suitable agent is a good strategy to enhance the sensitivity and the selectivity of the sensor [27–35] . Numerous nanomaterials have been developed based on conducting polymers, carbon nanostructures, metallic nanoparticles, or their combination for the electrochemical sensing of BPA, [36–39] and a wide range other applications [40–45] . Recently, multi walled carbon nanotubes were combined with CuFe 2 O 4 through a sol‐gel method [46] .…”

Section: Introductionmentioning

confidence: 99%

“…[27][28][29][30][31][32][33][34][35] Numerous nanomaterials have been developed based on conducting polymers, carbon nanostructures, metallic nanoparticles, or their combination for the electrochemical sensing of BPA, [36][37][38][39] and a wide range other applications. [40][41][42][43][44][45] Recently, multi walled carbon nanotubes were combined with CuFe 2 O 4 through a sol-gel method. [46] The designed hybrid material provided a wild range of linearity (0.01-120 μm) with a very low detection limit of 3.2 nm which indicates that the combination of carbon nanostructures with metallic nanoparticles can be a promising approach for the efficient determination of BPA in various matrices.…”

Section: Introductionmentioning

confidence: 99%

Smartphone‐Assisted Electrochemical Sensor Based on Mg_0.5Co_2.5(PO₄)₂ and Carbon Black for Trace Bisphenol A Detection

et al. 2023

Self Cite

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Bisphenol A (BPA) widely recognized as an endocrine disruptor can induce serious threats to human health such as sexual anomalies and cancer. Unfortunately, BPA has been increasingly used since 1950s; specifically during the manufacturing of polycarbonates and plastics such as food containers and water bottles. Thus, there is an urgent need to develop low‐cost, simple, portable and sensitive sensors for in‐situ detection of this contaminant in food and water. The combination of nanostructured carbon materials and metal/metal oxide nanoparticles can result in materials with unique physicochemical properties as well as excellent catalytic behaviors. Herein, we propose a smartphone‐assisted electrochemical sensor based on the combination of Mg0.5Co2.5(PO4)2 and carbon black (CB) modified screen‐printed electrode (SPE) for a rapid and sensitive determination of BPA. Structural characterization confirmed the formation of Mg0.5Co2.5(PO4)2/CB nanocomposite on SPE surface. Very low oxidation potential of BPA was observed during the differential pulse voltammetry (DPV) experiments at 0.16 V vs. Ag/AgCl. The sensor revealed two‐step linear response from 0.5–6.5 μm and from 16.5–100 μm with a lower limit of detection (LOD) of 0.15 μm. A good reproducibility, excellent stability, and high interference‐free ability were obtained. Furthermore, the developed sensor showed satisfactory recoveries for BPA detection in real water samples.

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Electrosynthesis of eco-friendly electrocatalyst based nickel-copper bimetallic nanoparticles supported on poly-phenylenediamine with highest current density and early ethanol oxidation onset potential

Cited by 9 publications

References 83 publications

Electrocatalytic Performance of Ethanol Oxidation on Ni and Ni/Pd Surface-Decorated Porous Structures Obtained by Molten Salts Deposition/Dissolution of Al-Ni Alloys

Electrocatalytic Performance of Ethanol Oxidation on Ni and Ni/Pd Surface-Decorated Porous Structures Obtained by Molten Salts Deposition/Dissolution of Al-Ni Alloys

Designing Sustainable Ethanol Oxidation Catalysts: The Role of Graphene Oxide in NiCuGO Composite Material

Smartphone‐Assisted Electrochemical Sensor Based on Mg_0.5Co_2.5(PO₄)₂ and Carbon Black for Trace Bisphenol A Detection

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Electrosynthesis of eco-friendly electrocatalyst based nickel-copper bimetallic nanoparticles supported on poly-phenylenediamine with highest current density and early ethanol oxidation onset potential

Cited by 9 publications

References 83 publications

Electrocatalytic Performance of Ethanol Oxidation on Ni and Ni/Pd Surface-Decorated Porous Structures Obtained by Molten Salts Deposition/Dissolution of Al-Ni Alloys

Electrocatalytic Performance of Ethanol Oxidation on Ni and Ni/Pd Surface-Decorated Porous Structures Obtained by Molten Salts Deposition/Dissolution of Al-Ni Alloys

Designing Sustainable Ethanol Oxidation Catalysts: The Role of Graphene Oxide in NiCuGO Composite Material

Smartphone‐Assisted Electrochemical Sensor Based on Mg0.5Co2.5(PO4)2 and Carbon Black for Trace Bisphenol A Detection

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Product

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Smartphone‐Assisted Electrochemical Sensor Based on Mg_0.5Co_2.5(PO₄)₂ and Carbon Black for Trace Bisphenol A Detection