X-ray photoelectron spectroscopy and Rutherford backscattering spectrometry study of anion incorporation in anodically grown films

Magnussen, N.; Quinones, L.; Cocke, David L.; Schweikert, E. A.; Patnaik, B.; Leite, C. V. Barros; Baptista, G.B.

doi:10.1016/0040-6090(88)90501-9

Cited by 5 publications

(2 citation statements)

References 19 publications

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“…He suggested a periodic precipitation reaction, also known as the Liesegang phenomenon, to be active. 24 However, with a clearly visible linear dependency it is easily possible to achieve every desired doping concentration in the oxide by simply adjusting the concentration of anions in the electrolyte.…”

Section: Paper Catalysis Science and Technologymentioning

confidence: 99%

Photocatalytic properties of in situ doped TiO2-nanotubes grown by rapid breakdown anodization

Hahn

Stärk

Killian

et al. 2013

Catal. Sci. Technol.

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In the present work, we demonstrate an in situ electrochemical doping approach during the growth of TiO 2 nanotubular layers formed by rapid breakdown anodization (RBA). For this, several oxygen containing metal anions, as doping species (WO 4 2À , Al(OH) 4 À , SiO 3 2À , MoO 4 2À , SnO 4 4À , CrO 4 2À and MnO 4 À), were investigated as additives to the electrolyte and successfully incorporated into the nanotubular oxide during the ultrafast tube growth. A linear relationship between the concentration of anions in the electrolyte and the doping concentration in the oxide was found. The resulting doped layers were tested, after heat treatment, for their UV photocatalytic activity using the degradation of AO7 (an organic model compound routinely used for determining the kinetics of photocatalytic decomposition reactions).

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Section: Paper Catalysis Science and Technologymentioning

confidence: 99%

Photocatalytic properties of in situ doped TiO2-nanotubes grown by rapid breakdown anodization

Hahn

Stärk

Killian

et al. 2013

Catal. Sci. Technol.

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“…The current transport during anodization 23,24 and the structures of the resulting oxide films 25,26 give further insight in the formation of the passive layer. Resulting films appear to depend on the potential and pH conditions during growth, particularly below the transpassive region.…”

Section: Introductionmentioning

confidence: 99%

Cyclic voltammetry, x-ray photoelectron spectroscopy, secondary-ion-mass spectrometry, and ion-scattering spectrometry examination of zirconium passive film breakdown in the presence of sulfate

Schennach

Mamun

Kunamneni

et al. 2000

Journal of Vacuum Science &Amp; Technology A: Vacuum, Surfaces, and Films

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Articles you may be interested inTime-of-flight secondary ion mass spectroscopy analysis of Na adatoms interacting with water-ice film J. Chem. Phys. 125, 044706 (2006); 10.1063/1.2216692Highly sensitive time-of-flight secondary-ion mass spectroscopy for contaminant analysis of semiconductor surface using cluster impact ionization Appl. Phys. Lett. 86, 044105 (2005); 10.1063/1.1852715Ab initio study of the electrochemical polymerization mechanism of ω-diamines Approach to the characterization of through-oxide boron implantation by secondary ion mass spectrometry Self-assembled monolayers for polymer and protein cationization with time-of-flight secondary ion mass spectrometry J.Passive films on zirconia were prepared by potentiodynamic polarization in the presence of a range of anions and at various pH values. With sulfate and chloride anions in the electrolyte we found unique transpassive peaks in the cyclic voltammograms that appear to be associated with an amorphous-to-crystalline transition and subsequent enhanced species transport along the resulting grain boundaries. X-ray photoelectron spectroscopy, secondary-ion-mass spectrometry, and ion-scattering spectrometry have been used to characterize the films before and after the passive film breakdown. The passive film breakdown can be qualitatively described by E np ϭE c ϩϩ⌽ ϩE inh . Where E np is the pitting potential, E c the corrosion potential in acidified solution, the polarization necessary to obtain a current density high enough to maintain acidity inside the pit, ⌽ the potential drop inside of the pit, and E inh the contribution to the pitting potential resulting from inhibitors present. The results of these surface studies along with the variation in the cyclic voltammetry scans have been used to describe the process and to present a model that involves chemically bound water oxidation and local oxygen evolution. The effects of either Ohmic drop and/or local acidification are presented as well.

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Anion incorporation and its effect on the dielectric constant and growth rate of zirconium oxides

1996

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X-ray photoelectron spectroscopy and Rutherford backscattering spectrometry study of anion incorporation in anodically grown films

Cited by 5 publications

References 19 publications

Photocatalytic properties of in situ doped TiO2-nanotubes grown by rapid breakdown anodization

Photocatalytic properties of in situ doped TiO2-nanotubes grown by rapid breakdown anodization

Cyclic voltammetry, x-ray photoelectron spectroscopy, secondary-ion-mass spectrometry, and ion-scattering spectrometry examination of zirconium passive film breakdown in the presence of sulfate

Anion incorporation and its effect on the dielectric constant and growth rate of zirconium oxides

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