Direct sub-nanometer scale electron microscopy analysis of anion incorporation to self-ordered anodic alumina layers

被引：26

作者：

Gonzalez-Rovira, L. ^{[1
]}

Lopez-Haro, M. ^{[1
]}

Hungria, A. B. ^{[1
]}

El Amrani, K. ^{[1
]}

Sanchez-Amaya, J. M. ^{[2
]}

Calvino, J. J. ^{[1
]}

Botana, F. J. ^{[1
]}

机构：

[1] Univ Cadiz, Dept Mat Sci & Met Engn & Inorgan Chem, Cadiz 11510, Spain

[2] Titania Ensayos & Proyectos Ind, SL Parque Tecnobahia, El Puerto Santa Maria 11500, Cadiz, Spain

来源：

CORROSION SCIENCE | 2010年 / 52卷 / 11期

关键词：

Aluminium; SEM; STEM; Anodic films; POROUS ALUMINA; CELL-WALLS; FILMS; FABRICATION; TRACER; ARRAYS;

D O I：

10.1016/j.corsci.2010.07.027

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ordered porous alumina layers prepared by two-step anodising in phosphoric, oxalic and sulphuric acids have been characterized at sub-nanometer scale using electron microscopy techniques. FEG-SEM and STEM-HAADF images allowed estimating the pore size, cell wall and pore wall thicknesses of the layers. Nanoanalytical characterization has been performed by STEM-EELS and STEM-X-EDS. Detailed features of the spatial distribution of anions in the pore wall of the films have been obtained. Maximum concentration of P-species occurs, approximately, at the middle of the pore wall: adjacent to the pore for C-species, whereas the distribution of S-species appears to be uniform. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：3763 / 3773

页数：11

共 30 条

[1] Perfect two-dimensional porous alumina photonic crystals with duplex oxide layers [J].

Choi, J ;

Luo, Y ;

Wehrspohn, RB ;

Hillebrand, R ;

Schilling, J ;

Gösele, U .

JOURNAL OF APPLIED PHYSICS, 2003, 94 (08) :4757-4762

[2] Anion impurities in porous alumina membranes: Existence and functionality [J].

Fan, D. H. ;

Ding, G. Q. ;

Shen, W. Z. ;

Zheng, M. J. .

MICROPOROUS AND MESOPOROUS MATERIALS, 2007, 100 (1-3) :154-159

[3] Formation of porous anodic alumina at high current efficiency [J].

Garcia-Vergara, S. J. ;

Habazaki, H. ;

Skeldon, P. ;

Thompson, G. E. .

NANOTECHNOLOGY, 2007, 18 (41)

[4] Tracer studies of anodic films formed on aluminium in malonic and oxalic acids [J].

Garcia-Vergara, S. J. ;

Skeldon, P. ;

Thompson, G. E. ;

Habakaki, H. .

APPLIED SURFACE SCIENCE, 2007, 254 (05) :1534-1542

[5] Stress generated porosity in anodic alumina formed in sulphuric acid electrolyte [J].

Garcia-Vergara, S. J. ;

Skeldon, P. ;

Thompson, G. E. ;

Habazaki, H. .

CORROSION SCIENCE, 2007, 49 (10) :3772-3782

[6] A flow model of porous anodic film growth on aluminium [J].

Garcia-Vergara, S. J. ;

Skeldon, P. ;

Thompson, G. E. ;

Habazaki, H. .

ELECTROCHIMICA ACTA, 2006, 52 (02) :681-687

[7] Optimized observation of tungsten tracers for investigation of formation of porous anodic alumina [J].

Garcia-Vergara, S. J. ;

Le Clere, D. ;

Hashimoto, T. ;

Habazaki, H. ;

Skeldon, R. ;

Thompson, G. E. .

ELECTROCHIMICA ACTA, 2009, 54 (26) :6403-6411

[8] Formation and characterization of nanotubes of La(OH)3 obtained using porous alumina membranes [J].

Gonzalez-Rovira, L. ;

Sanchez-Amaya, J. M. ;

Lopez-Haro, M. ;

Hungria, A. B. ;

Boukha, Z. ;

Bernal, S. ;

Botana, F. J. .

NANOTECHNOLOGY, 2008, 19 (49)

[9] Single-Step Process To Prepare CeO2 Nanotubes with Improved Catalytic Activity [J].

Gonzalez-Rovira, Leandro ;

Sanchez-Amaya, Jose M. ;

Lopez-Haro, Miguel ;

del Rio, Eloy ;

Hungria, Ana B. ;

Midgley, Paul ;

Calvino, Jose J. ;

Bernal, Serafin ;

Botana, F. Javier .

NANO LETTERS, 2009, 9 (04) :1395-1400

[10] Hexagonal pore arrays with a 50-420 nm interpore distance formed by self-organization in anodic alumina [J].

Li, AP ;

Muller, F ;

Birner, A ;

Nielsch, K ;

Gosele, U .

JOURNAL OF APPLIED PHYSICS, 1998, 84 (11) :6023-6026

← 1 2 3 →