引用本文:
夏盛清, 陈声培, 孙世刚. 草酸在铂基Sb-Pb表面合金电极上的催化还原[J]. 物理化学学报,
2001, 17(02): 140-143.
doi:
10.3866/PKU.WHXB20010210
Citation: Xia Sheng-Qing, Chen Sheng-Pei, Sun Shi-Gang. Electrocatalytic Reduction of Oxalic Acid on Platinum Based PbSb Surface Alloy Electrode[J]. Acta Physico-Chimica Sinica, 2001, 17(02): 140-143. doi: 10.3866/PKU.WHXB20010210
Citation: Xia Sheng-Qing, Chen Sheng-Pei, Sun Shi-Gang. Electrocatalytic Reduction of Oxalic Acid on Platinum Based PbSb Surface Alloy Electrode[J]. Acta Physico-Chimica Sinica, 2001, 17(02): 140-143. doi: 10.3866/PKU.WHXB20010210
草酸在铂基Sb-Pb表面合金电极上的催化还原
摘要:
将SbPbPt/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－0.4 V，与通常使用的铅阴极相比，正移了大约600 mV.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.
English
Electrocatalytic Reduction of Oxalic Acid on Platinum Based PbSb Surface Alloy Electrode
Abstract:
The platinum based PbSb 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.
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