摘要
为了对多孔阳极氧化铝孔洞尺寸的可控制备,分别对磷酸和草酸作为电解液进行阳极氧化研究。发现磷酸只需经一步氧化可以制备出高度有序的多孔氧化铝膜,孔洞在电压160 V时可达到300 nm,130 V时的孔洞约150 nm。经铬酸钾和磷酸混合液处理氧化膜后,可观察到阻挡层上分布的六角形结构。而草酸经两步阳极氧化后形成的孔洞很小,只有数十纳米,经扩孔后孔洞可达100 nm。
In order to find a way that could somehow control the size of porous anodic alumia（PAA）,H3PO4 and H2C2O4 as electrolyte were studied.It was found that high ordered PAA film can be fabricated by one step when H3PO4 as electrolyte and the size of pores can reach 300nm at 160 v and 150 nm at 130 v,respectively.Hexagonal structure can be observed on the barrier oxide film processing by K2CrO3 and H3PO4 solution.Pores were only tens of nanometers in the formation of oxalic acid after two-step anodization,which can reach 100 nm by pore open procedure.
出处
《广州化工》
CAS
2012年第20期78-80,共3页
GuangZhou Chemical Industry
关键词
阳极氧化
多孔
磷酸
草酸
SEM
anodic oxidation
porous
phosphoric acid
oxalic acid
SEM
