镍铁锌复合电极的制备和电化学性能表征

Preparation and Hydrogen Evolution Performance of Ni-Fe-Zn Combination Electrode

通过电沉积方法在泡沫镍表面沉积镍铁锌复合材料来制备析氢电极。通过改变电沉积的电流大小和沉积时间来调控镍铁锌复合材料的形貌和结构,利用泡沫镍和复合材料的高催化性、高比表面积和高电导性的特性,研究不同形貌和结构的复合电极对析氢效果的影响。运用多种分析测试技术对制备的复合材料进行表征,并通过电化学方法对复合电极的析氢性能进行研究,研究表明当电沉积的阴极电流密度为80m A、沉积时间为3600 s时,复合材料的电催化析氢性能最好。

Hydrogen evolution electrode was produced as load Ni-Fe-Zn combination material on nickel foam by electro-deposition.The morphology and structure of Ni-Fe-Zn combination electrode were controlled by changing the current and deposition time of electrodeposition.Taking the advantage of high catalytic activity,high specific surface area,and high electrical conductivity of combination electrode,we have investigated the electrocatalytic activity with different morphologies and structures for hydrogen evolution reaction(HER).A variety of analytical techniques were used to investigate the prepared hybrid nanomaterials.Meanwhile,combination electrode was used to study the electrocatalytic activity,and it is found that the electrode has the best electrocatalytic activity with the cathode-current density of 80 mA and the deposition time of 3600 s.