CAJ | 학술논문

将Sb-Pb-Pt/GC表面合金电极应用于草酸的电催化还原，发现所制备的催化剂电极具有较高的电催化活性，草酸还原的起始电位约－0.4V，与通常使用的铅阴极相比，正移了大约600mV.电化学原位红外反射光谱研究，证实所研制的催化剂可在较低的过电位下还原草酸生成乙醛酸，并具有较好的选择性.对于所研制的表面合金电催化剂的实际应用进行了探讨.
장Sb-Pb-Pt/GC표면합금전겁응용우초산적전최화환원，발현소제비적최화제전겁구유교고적전최화활성，초산환원적기시전위약－0.4V，여통상사용적연음겁상비，정이료대약600mV.전화학원위홍외반사광보연구，증실소연제적최화제가재교저적과전위하환원초산생성을철산，병구유교호적선택성.대우소연제적표면합금전최화제적실제응용진행료탐토.
The platinum based Pb-Sb surface alloy supported on glassy carbon prepared by electrochemical codeposition has been applied to the reduction of oxalic acid. The results demonstrated that the surface alloy electrode exhibited a high activity, and reduced significantly the overpotential. In comparison with a lead cathode that was used usually in industry for the reduction of oxalic acid, the onset potential of oxalic acid reduction was shifted positively from -1.0 V on Pb to － 0.4 V on the surface alloy electrode. The main product species were determined as glyoxylic acid by using in situ FTIR spectroscopy, illustrating that the surface alloy electrode exhibited also a high selectivity towards oxalic acid reduction.