Advances and Some Problems in Electrocatalysis of DSA Electrodes

作者：Kong Desheng^*; Lue Wenhua; Feng Yuanyuan; Bi Siwei

来源：Progress in Chemistry, 2009, 21(6): 1107-1117.

• DSA
• electrocatalysis
• metal oxides
• charge transfer
• electronic structure
• anodic degradation

Titanium anodes coated with transient metal oxides, so-called dimensionally stable anodes (DSA (R)) have been studied extensively due to their excellent electrocatalytic activity for chlorine and oxygen evolutions and electro-oxidation degradation of toxic organic compounds. But some fundamental and important questions in close relation with the electrocatalysis phenomena of DSA have not been completely understood yet. After a short review of the recent progress of electrocatalysis of DSA, some deficiencies in the related studies are raised and discussed. Since the oxide coating plays an essential role in the electrocatalytic activity of DSA, it is emphasized that the solid state physicochemical properties (e.g. the electronic structure, potential distribution, charge transfer mechanisms, conductivity, etc.) of the bulk metal oxide coating in DSA electrode need to be further investigated in future studies. Both for understanding the essentiality of the electrocatalysis phenomena of DSA and for improving the electrocatalytic activity of DSA electrode by changing the chemical composition of its oxide coating more rationally, it is desired to establish more correlations of the electrocatalytic activity of DSA electrode with the solid state physico-chemical properties of the oxide coating bulk.

• 出版日期2009-6
• 单位曲阜师范大学