Porous Anodic Metal Oxides

Abstract

Firstly I am cordially grateful to my supervisor Dr Wuzong Zhou for his help of imparting the knowledge of electron microscopy, crystallography, and directing me to design the experiments, solving problems in experiments and writing scientific papers and dissertation. Moreover he took care of my life in St Andrews and taught me to become a true researcher. He is one of the persons I respect and appreciate mostly in my life. And I would like to thanks Prof. M. Bühl from the school of chemistry in the University of St Andrews for the theoretical computation in the field enhanced dissociation of water; Mr Shijing Lu from department of physics of Zhejiang University in China for the theoretical simulation in the ionic convection during metal anodisation. Subsequently, .I would also like to thank Mr. Ross Blackley, who trained me on high resolution transmission electron microscopy and x-ray diffraction; Prof. Ifor Samuel of Physics Department for accessing the field emission gun SEM, Mrs Sylvia Williamson for her help of IR experiments, Miss Julie Nairn for the help of gold deposition and surface polishing. I need to say "thank you" to Mr. Wenbo Yue who gave me many helps in discussions of my experiments and operations of HRTEM and XRD, to Xiaoxiang Xu who help me in the IR characterization, and to other guys in the University of St Andrews who have been so nice to me. I should thank my parents who brought me up and always supported me. They are invaluable to me in the world. Finally, I wish to thank EPSRC and the EaStCHEM for financial support.

One-Dimensional Titanium Dioxide Nanomaterials: Nanotubes

“…Based on multiple anodization, stacks of nanotube layers can be produced -as shown in Figure 10.c and e. Depending on the detailed anodization conditions, the second tube layer can either be grown initiating between the original tubes layer, i.e., in the gaps, or through the bottom of the first layer 227,243,244 .…”

Aligned metal oxide nanotube arrays: key-aspects of anodic TiO2nanotube formation and properties

“…when nanotube layers are used as morphology-directed template, hierarchical structure, sizeselective flow-through membrane, or for their interaction with living matter in biological applications. 31,105,109,[140][141][142] Bamboo-type tubes, 138,139 branched and inter-tubes, 56,57,143 as well as tube stacks 80,82,137,144 can be grown by a stop and continuation of the anodization, or pulsing the voltage during anodizing.…”

“…5d). 57,143 Heteromaterial superlattices can be produced using sputter-deposited multilayer metal stacks as substrate for anodizationthis has been shown for alternating metal layers (e.g., Ti-Ta, Ti-Nb, Ti-Zr). 80,82,144 Key is that experimental conditions can be established that lead for both elements to a self-organized tubular nanostructure (Fig.…”

Experimental Analysis of the Influence of Factors Acting on the Layer Thickness Formed by Anodic Oxidation of Aluminium

“…The layer thickness of surface layers formed by anodic oxidation of aluminium (corrosion resistance, hardness, abrasion resistance, decorative effects, etc.) has been optimized over the decades mainly due to the publication of new findings [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22].…”