硫酸/草酸混酸电解液中阳极氧化法制备多孔阳极氧化铝模板  

Preparation of Porous Anodic Alumina Templates Using a Sulfuric/Oxalic Acid Mixture as Electrolyte

作　　者：杨培霞[1] 安茂忠[1] 郑铁帅[1] 

机构地区：[1]哈尔滨工业大学应用化学系,哈尔滨150001

出　　处：《无机化学学报》2005年第12期1907-1911,共5页Chinese Journal of Inorganic Chemistry

基　　金：黑龙江省自然科学基金资助项目(No.E200401)。

摘　　要：Well ordered porous anodic alumina (PAA) film was prepared on pure Al substrate using sulfuric/oxalic acid mixture as electrolyte with different ratios, the best regular PAA film with an average diameter of 45 nm was obtained using 1∶1 sulfuric/oxalic (molar concentration) mixed acid at 26 V. Addition of oxalic acid into sulfuric acid electrolyte resulted in the increase of anodizing current density, indicating a faster formation rate of PAA film. In 1∶1 sulfuric/oxalic acid electrolyte, the current density was the biggest, which illustrated that the formed barrier layer was the thinnest. Besides, addition of oxalic acid increased the stress of oxide film, accordingly changed the self-organized process of PAA film. XPS results indicate that the PAA film is mainly composed of amorphous alumina independent of oxalic acid addition.Well ordered porous anodic alumina （PAA） film was prepared on pure Al substrate using sulfuric/oxalic acid mixture as electrolyte with different ratios, the best regular PAA film with an average diameter of 45 nm was obtained using 1：1 sulfuric/oxalic （molar concentration） mixed acid at 26 V. Addition of oxalic acid into sulfuric acid electrolyte resulted in the increase of anodizing current density, indicating a faster formation rate of PAA film. In 1：1 sulfuric/oxalic acid electrolyte, the current density was the biggest, which illustrated that the formed barrier layer was the thinnest. Besides, addition of oxalic acid increased the stress of oxide film, accord- ingly changed the self-organized process of PAA film. XPS results indicate that the PAA film is mainly composed of amorphous alumina independent of oxalic acid addition.

关 键 词：阳极氧化 多孔氧化铝 纳米材料 

分 类 号：O646.542[理学—物理化学]