Bifunctional graphene oxide-copper coated nickel mesh and its electrocatalysis towards ethanol production: A preliminary analysis

• Published in: Materials letters Vol. 275; p. 128092
• Main Authors: Othman, Muhamad Farhan Haqeem, Rashidi, Nor Adilla, Yusup, Suzana, Kida, Tetsuya
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 15.09.2020; Elsevier BV
• Subjects: Carbon dioxide; Copper; Electrocatalysis; Electrochemical reduction; Electrodes; Ethanol; Functional; Graphene; Graphene oxide; Materials science; Nanoparticles; Nickel; Porous materials; Potassium carbonate; Reduction; Selectivity; Functional; Electrocatalysis; Electrochemical reduction; Graphene oxide; Ethanol; Porous materials
• ISSN: 0167-577X; 1873-4979
• DOI: 10.1016/j.matlet.2020.128092

•Electrocatalysis is a promising approach for carbon dioxide mitigation.•Utilization of Graphene Oxide-Copper coated Nickel mesh in electrocatalysis process.•Electrocatalysis depends on types of catalyst/electrolyte and catalyst loading.•Ethanol is the main product of heterogeneous electrocatalyst process. The bifunctional Graphene Oxide-Copper (GO-Cu) coated nickel mesh that was fabricated through layer-by-layer approach was used as a working electrode in carbon dioxide (CO2) electro-reduction process for ethanol production. The findings confirmed smooth and well-dispersed deposition of Cu-nanoparticles onto GO, and less corrosion behavior in 0.1 M potassium carbonate (K2CO3) solution. Besides, linear sweep voltammetry and chronoamperometry analysis was performed to determine the electro-reduction activity of the fabricated electrode. Novelty of this study covers a working electrode production that possesses high durability and stability while maintaining good current and proton conductivity, as well as high efficiency and selectivity towards desirable product.