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采用循环伏安法，对ＳＰＥＰｔ电极以及ＳＰＥＡｕ－Ｐｔ电极上还原态ＣＯ２的电化学氧化行为研究表明，此类电极的电化学特性与光滑Ｐｔ电极一致：ＣＯ２在氢原子吸附电位区０～２５０ｍＶ（ｖｓ．ＲＨＥ）处，可与电极上化学吸附的氢反应，生成还原态的ＣＯ２，通过线性扫描，还原态ＣＯ２即发生一不可逆电化学氧化过程（阳极剥离）．在ＳＰＥＰｔ系列及ＳＰＥＡｕ－Ｐｔ系列上ＣＯ２的电化学行为表明，当ＳＰＥＰｔ系列上Ｐｔ的载量为２．５ｍＬ的０．０１ｍｏｌ·Ｌ－１Ｈ２ＰｔＣｌ６的Ｐｔ时，对还原态ＣＯ２的电催化活性最好，当Ｐｔ的载量相同时，在ＳＰＥＡｕ－Ｐｔ上，催化剂对还原态ＣＯ２的电化学氧化行为比ＳＰＥＰｔ电极更强，这是由于预先沉积的Ａｕ对后沉积的Ｐｔ有调制作用．
Cyclic voltammetry was used to study the electrochemical oxidation of reduced CO2 on SPEPt electrode and SPEAu-Pt electrode. The results showed that the electrochemical properties of these electrodes were consistent with the smooth Pt electrode. CO2 was in the range of 0 ~ 250mV ( vs. RHE) react with hydrogen chemisorbed on the electrode to produce reduced CO2, which undergoes an irreversible electrochemical oxidation process (anodic stripping) via a linear scan of the reduced CO2. The electrochemical behavior of CO2 on the SPEPt series and the SPEAu-Pt series shows that the electrocatalytic activity of the reduced CO2 is best when Pt loading on the SPEPt series is 2.5 mL of Pt at 0.01 mol·L-1H2 PtCl6 At the same loading of Pt, the electrochemical oxidation of reduced CO2 on SPEAu-Pt was stronger than that of SPEPt due to the pre-deposition of Au on the post-deposition Pt.