Innovative Experimental Design of Applied Electrochemistry Course for Graduate Students Based on Innovative Talent Training Plan
With the aim of cultivating innovative talents and combining the characteristics of the applied electrochemistry course for graduate students,this article carries out teaching reform on the applied electrochemistry course for graduate students.A teaching mode supported by scientific research is proposed,and an innovative applied electrochemical experimental module is introduced to design an applied electrochemical experiment on the synthesis of CoFe LDH/MOF/CC composite materials and the electrocatalytic water decomposition for oxygen production.The experiment involves the synthesis of electrocatalysts,the characterizations and electrocatalytic performance testing.Through this innovative experiment,we aim to improve the quality of graduate teaching,integrate theory with practice,and cultivate high-quality applied talents with innovative spirit and practical abilities.Taking a typical water decomposition electrocatalyst CoFe LDH/MOF/CC as an example,the LDHs/MOFs heterostructure was constructed by partially converting two-dimensional LDHs nanosheets into two-dimensional MOFs,and CoFe LDH/MOF/CC nanocomposites were synthesized on a carbon cloth substrate.It was characterized by X-ray powder diffraction(XRD),X-ray photoelectron spectroscopy(XPS),scanning electron microscopy(SEM),and other means.The prepared CoFe LDH/MOF/CC electrocatalyst exhibited good OER performance.At a current density of 10 mA·cm-2,the overpotential was 240 mV,and the Tafel slope was 83.74 mV·dec-1.After 24 hours of stability testing,the overpotential only increased by 0.02 V,making it a promising electrocatalyst for electrolytic water oxygen evolution reactions.
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