Electrodeposition NiGO nanoparticles on pencil lead electrode as a new electrocatalyst for electro-oxidation of formaldehyde

In the present study, the NiGO nanoparticles (NiGO-ANPs) were electrodeposited on the pencil lead electrode (PLE) surface, and the obtained modified electrode (NiGO-ANPs/PLE) was examined as a new electrocatalyst towards formaldehyd electro-oxidation reaction (EEOR). The PLE was fabricated through the electrochemical exfoliation of pencil lead electrode (PLE) in acidic conditionon a three-electrode electrochemical cell.The physicochemical and electrocatalytic characterizations of the prepared electro-catalyst were examined by means of various techniques: X-ray powder diffraction spectroscopy, field emission scanning electron microscopy, energy dispersive X-ray spectroscopy, cyclic voltammetry, and chronoamperometry. Comparison of the electrocatalytic activity of the introduced electro-catalysts (NiNPs/PLE, GONPs/PLE, showed that the NiGO-ANPs/PLE has the highest and good electrocatalytic activity Linear range, limit of detection and sensitivity of the developed sensor were found to be ۳-۶۰۰ μM, ۱.۰۳μ M and ۰.۰۵۸۴ A/M, respectively.

کلیدواژه ها:

Pencil lead electrode ، Formaldehyde ، Electrocatalysis ، Nanoparticles