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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Llobet, Eduard
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (14/14 displayed)
- 2024Room-Temperature Ammonia Sensing Using Polyaniline-Coated Laser-Induced Graphenecitations
- 2024Porous-anodic-alumina-templated Ta-Nb-alloy oxide coatings via the magnetron-sputtering anodizing as novel 3D nanostructured electrodes for energy-storage applicationscitations
- 2024Graphene Decorated With Mo3S7 Clusters for Sensing CO2
- 2023Hydrogen Sensing Mechanism of WS2 Gas Sensors Analyzed with DFT and NAP-XPScitations
- 2023Hydrogen Sensing Mechanism of WS2 Gas Sensors Analyzed with DFT and NAP-XPScitations
- 2023Se-doped Nb2O5-Al2O3 composite-ceramic nanoarrays via the anodizing of Al/Nb bilayer in selenic acidcitations
- 2021Metal-substrate-supported tungsten-oxide nanoarrays via porous-alumina-assisted anodization: from nanocolumns to nanocapsules and nanotubes ; Nanouspořádané pole oxidů wolframu na kovovém substrátu vyrobené pomocí anodizace přes porézní aluminu: od nanosloupků po nanokaplsa a nanotrubkycitations
- 2021FUNCTIONAL NICKEL COATINGS AIMED AT SURFACE DEFECT MITIGATION IN ADDITIVELY MANUFACTURED PARTS OBTAINED BY ELECTRODEPOSITION
- 2015Aerosol-assisted CVD-grown WO₃ nanoneedles decorated with copper oxide nanoparticles for the selective and humidity-resilient detection of H₂Scitations
- 2014Gas sensing with gold-decorated vertically aligned carbon nanotubescitations
- 2014Boron- and nitrogen-doped multi-wall carbon nanotubes for gas detectioncitations
- 2013Single-step deposition of au- and pt-nanoparticle-functionalized tungsten oxide nanoneedles synthesized via aerosol-assisted CVD, and used for fabrication of selective gas microsensor arrayscitations
- 2012Gold clusters on WO 3 nanoneedles grown via AACVD: XPS and TEM studiescitations
- 2011Gas sensing with au-decorated carbon nanotubescitations
Places of action
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article
Porous-anodic-alumina-templated Ta-Nb-alloy oxide coatings via the magnetron-sputtering anodizing as novel 3D nanostructured electrodes for energy-storage applications
Abstract
The Ta-Nb thin alloy films were magnetron sputter-deposited over a low-aspect-ratio nanoporous anodic-alumina template formed in 0.05 M tartaric acid solution at 250 V and modified by the pore-widening technique to enlarge the pores up to 500 nm. The alloy coated the pores evenly, thus forming a 3D continuous conducting nanofilm on the template. Partially anodizing the templated alloy in a borate buffer solution of pH 7.5 generated a compact amorphous mixed-oxide anodic film thickening proportionally to the applied voltage. An unusual two-layered structure with a sharp electrical interface revealed in the 3D oxide films anodized to 30–130 V, comprising a low-resistivity layer superimposed on the high-resistivity layer, is explained by an immobile negative space charge in the outer film part. The air-annealing at moderate temperatures releases the space charge and transforms the two layers into a high-resistivity single layer having substantially improved dielectric properties and thermostable (up to 250 deg) capacitance of 1.2 F cm2 achieved for the film anodized to practical 50 V. The 3D films having up to 4.5 times enlarged effective surface area can be utilized as novel metal/oxide nanostructured electrodes for electrolytic microcapacitors suitable for classical electronic circuits and energy-storage applications.