Abstract:Using graphene as the carrier and ethylene glycol as the reducing agent, an oil bath method was used to synthesize a Pt(100) crystal face preferential orientation catalyst by adding different additives as shape directing agents, and the performance of the catalyst was discussed. Use X-ray diffractometer (XRD), transmission electron microscope (TEM), inductively coupled plasma atomic emission spectrometry (ICP-AES) and scanning electron microscope (SEM) to microscopically characterize the synthesized catalyst, and use electrochemical workstation to analyze the synthesized catalyst Conduct electrochemical performance tests. The results show that the Pt(100) crystal plane orientation catalyst added with KBr has the most regular cubic morphology and the most complete formation. At the same time, its electrocatalytic performance is the best. The electrochemically active surface area is 42.43m2/g, the peak current density for ethanol oxidation is 417.67A/g, and the steady-state current density value for 1100s is 149.50A/g, which is catalytic oxidation reaction for ethanol. The activation energy is the lowest, and the retention rate of the peak current density of ethanol oxidation is 82.26%.