Hollow Sodium Nickel Fluoride Nanocubes Deposited MWCNT as An Efficient Electrocatalyst for Urea Oxidation

摘要: Abstract Hollow nanocubes of sodium nickel fluoride deposited on multiwall carbon nanotubes (SNF–MWCNT) have been synthesized by a facile microwave assisted process using in situ templated mechanism. Ionic liquid (IL) played an important role synthesizing the catalysts. Physicochemical properties catalysts were characterized X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), transmission (TEM), and photoelectron spectroscopy (XPS). The analyzed for urea electrooxidation cyclic voltammetry (CV), chronoamperometry (CA), electrochemical impedance (EIS) tests. SNF–MWCNT electrocatalyst exhibited very high current density 3.12 A cm−2 mg−1 at 20 mV s−1 0.33 M 5 M KOH solution aided their Ni3+ rich surfaces, porous hollow structure favorable electronic effect fluorine. catalytic activity oxidation was found superior than commercially available Ni–C catalyst. direct urea/air unit fuel cell showed promising performance SNF–MWCNT–5 mL IL as anode catalyst with low amount loading.