以镍铬合金为基体电极,采用循环伏安电沉积技术制备了Pt微粒电极,用扫描电子显微镜表征了基体电极及电催化剂的表面形貌。利用循环伏安和计时电流法考察了该电极的电化学性能。实验结果表明,Pt微粒电极对甲醛氧化表现出优异的电催化活性和抗中毒能力。该电极制作成本低廉,步骤简易,使用寿命长,贵金属Pt的用量大大降低。其有望用作有机小分子液体燃料电池的电极材料。 The Ni-Cr alloy substrate electrode was prepared by cyclic voltammetry electrodeposition Pt microparticle electrode, characterized by scanning electron microscopy of the surface morphology of the substrate electrode and the electrocatalyst. The electrochemical properties of the electrode were investigated by cyclic voltammetry and chronoamperometry. The experimental results show that the Pt microparticulate electrode exhibits excellent electrocatalytic activity and anti-poisoning ability for the oxidation of formaldehyde. The electrode has the advantages of low cost, simple steps and long service life, and greatly reduces the amount of precious metal Pt. It is expected to be used as an electrode material for organic small molecule liquid fuel cells.