Electroplating of Pt–Ni–Cu nanoparticles on glassy carbon electrode for glucose electro-oxidation process

Abstract

Platinum and nickel-copper nanoparticles were electrodeposited on glassy carbon electrode (GCE) by using cyclic voltammetry (CV)-based electroplating technique. Morphology and chemical composition of the newly designed electrode was studied via scanning electron microscope, energy dispersive X-ray and elemental mapping analysis. This electrode was eventually employed to electro-oxidation of glucose using CV, chronoamperometry (CA) and electrochemical impedance spectroscopy techniques. Pt-Ni-Cu/GCE is capable of electrooxidation of glucose at a low potential and generating high peak current density. The results of CV and CA revealed the high catalytic activity of the Pt-Ni-Cu/GCE and steady-state activity for glucose electro-oxidation. Compared to the other electrodes reported in the previous literature, Pt-Ni-Cu/GCE shows a better potential as an anode. Low electrochemical charge transfer resistance (R ct ) is of particular advantages for the Pt-Ni-Cu/GCE. This electrode is a good choice as an anode for application in direct glucose alkaline fuel cells.

Insight into the ordering process and ethanol oxidation performance of Au–Pt–Cu ternary alloys

“…Over the past decades, great efforts have been made in the development of fuel cells to reduce the carbon emissions caused by the combustion of fossil fuels. Among the various types of fuel cells, direct alcohol fuel cells (DAFCs) attract increasing attention due to the superior energy density (8.3 kW h kg −1 ), [1][2][3][4][5] low toxicity and high availability of ethanol as compared to methanol. [6][7][8][9] Platinum (Pt) has been regarded as an efficient metal catalyst for ethanol oxidation reaction (EOR).…”

Electrochemical valorization of waste activated sludge for short-chain fatty acids production

“…In this paper, we demonstrate a novel process to produce short fatty acids from waste activated sludge via electrolysis in mild alkaline media implementing copper, nickel, and stainless-steel electrodes. Copper and nickel were selected for the study as they have been used in the electrocatalysis of other organic compounds, such as such as urea, lignin, glucose, and chitin ( Jafarian et al, 2009 ; Eshghi and Kheirmand, 2018 ; Zhao et al, 2021 ). On the other hand, the combination of high corrosion resistance and excellent mechanical strength, makes stainless steel an ideal candidate for electrochemical processes if catalytically active ( Madih et al, 2020 ; Todoroki and Wadayama, 2021 ).…”