Electrosynthesis of eco-friendly electrocatalyst based nickel-copper bimetallic nanoparticles supported on poly-phenylenediamine with highest current density and early ethanol oxidation onset potential
| Autor: | Chemchoub, Sanaa, El Attar, Anas, Oularbi, Larbi, Younssi, Saad Alami, Bentiss, Fouad, Jama, Charafeddine, El Rhazi, Mama |
|---|---|
| Přispěvatelé: | Unité Matériaux et Transformations - UMR 8207 (UMET), Centrale Lille-Institut de Chimie du CNRS (INC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Université Hassan II [Casablanca] (UH2MC), Université Chouaib Doukkali (UCD) |
| Rok vydání: | 2022 |
| Předmět: |
[CHIM.POLY]Chemical Sciences/Polymers
Fuel Technology Renewable Energy Sustainability and the Environment Direct ethanol fuel cell Energy Engineering and Power Technology Nickel nanoparticle [CHIM.MATE]Chemical Sciences/Material chemistry Copper nanoparticle Condensed Matter Physics Poly-phenylenediamine Ethanol electrooxidation |
| Zdroj: | International Journal of Hydrogen Energy International Journal of Hydrogen Energy, 2022, International Journal of Hydrogen Energy, 47 (92), pp.39081-39096. ⟨10.1016/j.ijhydene.2022.09.069⟩ |
| ISSN: | 0360-3199 |
| DOI: | 10.1016/j.ijhydene.2022.09.069 |
| Popis: | International audience; Bimetallic catalysts have been investigated as the most efficient materials to accelerate the chemical transformations at the anode in Direct Ethanol Fuel Cells. A comparative study is presented here to synthesize Ni–Cu bimetallic nanoparticles for the ethanol oxidation reaction on three conducting polymers: poly-ortho-phenylenediamine, poly-meta-phenylenediamine, and poly-para-phenylenediamine. X-ray diffraction (XRD), Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), and Electrochemical Impedance Spectroscopy (EIS) were used to analyze the modified electrodes. A series of bimetallic Ni–Cu nanoparticles with tunable ratios were successfully synthesized by simply changing the concentrations of Nickel and Copper. It has been confirmed that the best Ni/Cu molar ratio was 25% in the aspect of catalytic performance. The electrocatalyst exhibited an excellent catalytic activity with an anodic current of 70.5 mA cm−2 at the lowest onset potential of 0.39 V with impressive stability. Ni4Cu1/PpPD should be considered as a good alternative to noble metal anode catalyst. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect