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Influence of Reducer on the Nanopore Structure of Porous Anodic Alumina
Zhu Xu-Fei1; Han Hua2; Ma Hong-Tu2; Lu Chao1; Qi Wei-Xing1; Xu Chen1
Source PublicationACTA PHYSICO-CHIMICA SINICA
2012-11-01
Volume28Issue:11Pages:2648-2658
SubtypeArticle
AbstractIn recent years, attention has been focused on adjustment and control of the nanostructures of porous anodic alumina (PAA) and porous anodic TiO2 nanotubes (PATNT). Because the formation mechanism of PAA and PATNT is still unclear, it is difficult to adjust the nanostructures of PAA and PATNT. To validate the novel viewpoint of the nanopore resulting from an oxygen bubble mold, an innovative chemical approach was used to adjust the PAA nanostructures. One successful approach is to use a reducer to absorb the oxygen bubbles in the nanopores. A novel anodic alumina film was obtained in a mixed solution of the reducer and oxalic acid. The influence of the reducer on the PAA nanostructures which formed in H3PO4 solution was investigated in detail. The experimental results showed that the regularity and the diameters of the nanopores in the PAA decreased as the reducer content increased. The differences in the voltage-time curves between electrolytes with and without the reducer were analyzed quantitatively. The results showed that the conductivity of the anodic oxide film that formed in the electrolyte with the reducer was better than that in the electrolyte without the reducer. When aluminum anodizes in a sealed case, oxygen bubbles are easily absorbed by the reducer, the oxygen bubble mold effect disappears, and a compact alumina film is obtained. Overall, these results clearly demonstrate that nanopores result from the oxygen bubble mold effect.
KeywordNanoporous Material Anodization Electrolyte Reducer Formation Mechanism
WOS HeadingsScience & Technology ; Physical Sciences
WOS KeywordTIO2 NANOTUBE ARRAYS ; FORMATION MECHANISM ; PULSE ANODIZATION ; HARD ANODIZATION ; NANOWIRE ARRAYS ; OXIDE ; FABRICATION ; MEMBRANES ; GROWTH ; FILMS
Indexed BySCI
Language英语
WOS Research AreaChemistry
WOS SubjectChemistry, Physical
WOS IDWOS:000311597200018
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ia.ac.cn/handle/173211/8001
Collection国家专用集成电路设计工程技术研究中心
Affiliation1.Nanjing Univ Sci & Technol, Minist Educ, Key Lab Soft Chem & Funct Mat, Nanjing 210094, Peoples R China
2.Chinese Acad Sci, Inst Automat, Natl Engn & Technol Res Ctr ASIC Design, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Zhu Xu-Fei,Han Hua,Ma Hong-Tu,et al. Influence of Reducer on the Nanopore Structure of Porous Anodic Alumina[J]. ACTA PHYSICO-CHIMICA SINICA,2012,28(11):2648-2658.
APA Zhu Xu-Fei,Han Hua,Ma Hong-Tu,Lu Chao,Qi Wei-Xing,&Xu Chen.(2012).Influence of Reducer on the Nanopore Structure of Porous Anodic Alumina.ACTA PHYSICO-CHIMICA SINICA,28(11),2648-2658.
MLA Zhu Xu-Fei,et al."Influence of Reducer on the Nanopore Structure of Porous Anodic Alumina".ACTA PHYSICO-CHIMICA SINICA 28.11(2012):2648-2658.
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