In this work, the anodization of Ti foils in closed bipolar cells is shown for first time. Depending on applied potential, i. e. direct or alternating TiO2 nanotube (TNT) layers can either be prepared one side both sides a foil. It that due to use cells, potentials with different amplitudes within individual two half-cells. Additionally, electrolytes used substrate. Thus, TNT obtained under pot...

Hierarchical micro-/nano-structures made easy. By using extremely rough, chemically etched microstructured aluminium foils, anodization in phosphoric acid under very harsh conditions, e.g., 10 wt% phosphoric acid and room temperature, can be repeatedly accomplished without suffering from breakdown. As a result, an alumina membrane with a three-dimensionally distributed nanopore structure is for...

This paper describes an approach to synthesize a tightly adhered Ta3N5 nanotube array (NTA) photoanode with enhanced electron conductivity between the Ta3N5 layer and the substrate via a two-step anodization method. The obtained tightly adhered Ta3N5 NTA photoanode exhibits excellent photoelectrochemical properties with an optimal photocurrent up to 5.3 mA cm(-2) at 1.6 V vs. the reversible hyd...

3. 17th European Society for Biomaterials Conference, Barcelona 2002 ”Protein adsorption on spark anodized Titanium” P. Becker, A. Baumann, U. Beck, A. Kirbs, J. Rychly, F. Lüthen, H-G. Neumann 4. Ti 2003, Science and Technology, Vol. V, Proceedings of the 10th World Conference on Titanium, Hamburg 2003; (ed. G. Lütjering, J. Albrecht), 3339-3344 "Spark Anodization on Titanium and Titanium Allo...

Methods Using anodization method, TiO2 surfaces composed of vertically aligned nanotubes of 50-100 nm diameters were produced. The flat Ti surface was used as a reference. The alteration in the morphology of cancer cells was evaluated using scanning electron microscopy (SEM). A computational model, based on the theory of membrane elasticity, was constructed to shed light on the biophysical mech...

The study of an innovative fluoropolymer masking layer for silicon anodization is proposed. Due to its high chemical resistance to hydrofluoric acid even under anodic bias, this thin film deposited by plasma has allowed the formation of deep porous silicon regions patterned on the silicon wafer. Unlike most of other masks, fluoropolymer removal after electrochemical etching is rapid and does no...

Effectively controlling quantum mechanical tunneling through an ultrathin dielectric represents a fundamental materials challenge in the quest for high-performance metal-insulatormetal (MIM) diodes. Such diodes are the basis for alternative approaches to conventional thin-fi lm transistor technologies for large-area information displays, [ 1 , 2 ] various types of hot electron transistors, [ 2–...