Effect of iron-cobalt ratio on the morphology and oxygen evolution reaction activity of carbon materials
To obtain sustainable hydrogen energy through electrocatalytic decomposition of water is an effective way to replace non-renewable fossil energy.The development of efficient oxygen evolution catalyst is the key to solve the problem of slow oxygen evolution kinetics and increase water electrolysis reac-tion.Transition metals cobalt and iron are efficient electrocatalytic catalysts for water decomposition,and they can catalyze carbon source to produce carbon nanotube materials with high conductivity.In this paper,the source of iron (iron acetylacetonate),cobalt (cobalt nitrate) and graphite carbon nitride (g-C3N4) were mixed for high temperature solid phase reaction.Using scanning electron microscopy (SEM) and X-ray diffraction (XRD) characterization were used to study the effect of different Fe/Co ratio on the synthesized carbon materials morphology.Electrochemical performance of the materials were tested by electrocatalytic oxygen evolution reactions and electric double layer capacitance experiment.The results showed that Co9 Fe1@NCNTs had the highest activity for OER and highest value of electric double layer capacitance
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维普
