中文摘要：

在旁边是氧化电镀物品的以后在 0.5 mol/L H ₂那么₄答案或在 0.2 mol/L H ₂ O ₂+0.5 mol/L H ₂那么₄答案， Sn/polyaniline ( PANI )电极被脉搏 galvanostatic 与磅微粒子修改方法，因此， Pt/Sn hydroxide/PANI 电极被准备。为甲醛电镀物品氧化的 Pt/Sn/PANI 电极和 Pt/Sn hydroxide/PANI 电极的电镀物品催化活性被 CV 方法调查。免职费用的效果(Q _{Pt/Sn hydroxide/PANI 电极的电镀物品催化活性上的 PANI， Sn 和磅，扫描率和甲醛集中的 dep} ) 也被学习。结果证明 Pt/Sn hydroxide/PANI 电极的电镀物品催化活性比 Pt/Sn/PANI 电极的那些高得多。

英文摘要：

After being electro-oxidized by cyclic voltammetry（CV） method in 0.5 mol/L H2SO4 solution or in 0.2 mol/L H2O2＋0.5 mol/L H2SO4 solution, the Sn/polyaniline （PANI） electrodes were modified with Pt microparticles by pulse galvanostatic method, thus Pt/Sn hydroxide/PANI electrodes were prepared. The electrocatalytic activities of the Pt/Sn/PANI electrode and Pt/Sn hydroxide/PANI electrode for formaldehyde electro-oxidation were investigated by CV method. The effects of deposition charges （Qdep） of PANI, Sn and Pt, scan rate and formaldehyde concentration on the electrocatalytic activity of Pt/Sn hydroxide/PANI electrode were also studied. The results show that the electrocatalytic activities of the Pt/Sn hydroxide/PANI electrodes are much higher than those of the Pt/Sn/PANI electrode.