A Comprehensive Experiment Design on NiCu/Ni(OH)₂ Electrocatalysts for Hydrogen Evolution Reaction

A comprehensive experiment is designed on NiCu/Ni(OH)₂ electrocatalysts for the alkaline hydrogen evolution reaction (HER), basing on science and education integration model. The efficient HER electrocatalyst was constructed in-situ on nickel foam substrate by electrochemical deposition and electrooxidation. Meanwhile, large instruments such as field emission scanning electron microscopy (FESEM), X-ray energy spectrum (EDS), X-ray diffractometer (XRD) and X-ray photoelectron spectroscopy (XPS) were analyzed the phase information of the catalyst. Linear sweep voltammetry (LSV), Electrochemical impedance spectroscopy (EIS), Cyclic voltammetry (CV) and Chronopotential potentiometry (CP) were used to investigate the hydrogen evolution reaction of the catalyst. It broadens students' vision and significantly improves students' comprehensive experimental skills and innovative thinking ability, through the experiment training.