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采用不同喷砂工艺对钛基体进行处理,并经草酸溶液刻蚀得到不同粗糙度的基体表面,然后通过热分解法制备氧化物阳极。研究了基体表面粗糙度与氧化物阳极表面粗糙度的关系,并对氧化物阳极进行析氯电位、电流效率、循环伏安曲线及强化电解寿命等性能测试。结果表明,随着基体表面粗糙度的增大,制得的阳极表面粗糙度增大,其电催化活性略微升高,电解寿命得到大幅度提高。
Different sandblasting processes were used to treat the titanium substrate. The surface of the substrate with different roughness was etched by oxalic acid solution, and then the oxide anode was prepared by thermal decomposition. The relationship between substrate surface roughness and surface roughness of oxide anode was studied. The performance of oxide anode was also tested, such as chlorine evolution potential, current efficiency, cyclic voltammetry and enhanced electrolytic life. The results show that with the increase of substrate surface roughness, the surface roughness of the prepared anode increases, its electrocatalytic activity slightly increases, and the life of electrolysis has been greatly improved.