scholarly journals Metal-substrate-supported tungsten-oxide nanoarrays via porous-alumina-assisted anodization: from nanocolumns to nanocapsules and nanotubes

2016 ◽  
Vol 4 (21) ◽  
pp. 8219-8232 ◽  
Author(s):  
Alexander Mozalev ◽  
Maria Bendova ◽  
Francesc Gispert-Guirado ◽  
Zdenek Pytlicek ◽  
Eduard Llobet
Keyword(s):  
Tungsten Oxide ◽  
Anodic Oxidation ◽  
Porous Alumina ◽  
Metal Substrate ◽  
Oxide Semiconductor ◽  
Sputter Deposited

Arrays of tungsten-oxide semiconductor nanorods, nanocapsules, and nanotubes are synthesized via anodic oxidation of Al/W layers sputter-deposited on substrates.

Electrocatalytic Activity of Platinum Nano-particle Deposited on Tungsten Oxide for Anodic Oxidation of Ethanol

2012 ◽  
Vol 80 (11) ◽  
pp. 916-918 ◽  
Author(s):  
Tatsuya TSURUMURA ◽  
Nobuko YOSHIMOTO ◽  
Minato EGASHIRA ◽  
Masayuki MORITA
Keyword(s):  
Tungsten Oxide ◽  
Anodic Oxidation ◽  
Electrocatalytic Activity ◽  
Nano Particle ◽  
Oxidation Of Ethanol

Trends in sputter deposited tungsten oxide structures for electrochromic applications: A review

2020 ◽  
Vol 46 (15) ◽  
pp. 23295-23313 ◽  
Author(s):  
Ahmar Mehmood ◽  
Xueyuan Long ◽  
Azhar Ali Haidry ◽  
Xiaogang Zhang
Keyword(s):  
Tungsten Oxide ◽  
Sputter Deposited

scholarly journals Nanomechanical humidity detection through porous alumina cantilevers

2015 ◽  
Vol 6 ◽  
pp. 1332-1337 ◽  
Author(s):  
Olga Boytsova ◽  
Alexey Klimenko ◽  
Vasiliy Lebedev ◽  
Alexey Lukashin ◽  
Andrey Eliseev
Keyword(s):  
Water Vapor ◽  
Resonance Frequency ◽  
Surface Area ◽  
Anodic Oxidation ◽  
Mechanical Characteristics ◽  
Porous Alumina ◽  
Water Vapor Adsorption ◽  
Anodic Alumina ◽  
Cantilever Arrays ◽  
Humidity Sensitivity

We present here the behavior of the resonance frequency of porous anodic alumina cantilever arrays during water vapor adsorption and emphasize their possible use in the micromechanical sensing of humidity levels at least in the range of 10–22%. The sensitivity of porous anodic aluminium oxide cantilevers (Δf/Δm) and the humidity sensitivity equal about 56 Hz/pg and about 100 Hz/%, respectively. The approach presented here for the design of anodic alumina cantilever arrays by the combination of anodic oxidation and photolithography enables easy control over porosity, surface area, geometric and mechanical characteristics of the cantilever arrays for micromechanical sensing.

New Fabrication of Multiple-Layer Microcoil Using Anodic Oxidized Aluminum

1999 ◽  
Vol 11 (5) ◽  
pp. 431-435
Author(s):  
Kenichi Muraki ◽  
◽  
Katsutoshi Kuribayashi
Keyword(s):  
Anodic Oxidation ◽  
Potential Application ◽  
High Potential ◽  
Oxidation Time ◽  
Promising Candidate ◽  
Simple Process ◽  
Low Resistance ◽  
Power Stations ◽  
Multiple Layer ◽  
Sputter Deposited

A multiple-layer microcoil is a promising candidate for micromagnetic sensors for probing cracks in pipes in power stations and plants. We proposed fabrication of multiple-layer microcoils combining Al anodic oxidation and photolithography, and conducted experiments with the following results: 1) Sputter-deposited Al was anodically oxidized and thickness of Al2O3 formed controlled by anodic-oxidation time. 2) A pattern with Al and Al2O3 was made by masking Al with photoresist to prevent anodic oxidation. 3) A multiple-layer Al and Al2O3 was fabricated by combining Al anodic oxidation and photolithography. 4) As these results shown, multiple-layer microcoils having both high inductance and low resistance were fabricated as proposed using a simple process and having a high potential application to smaller multiple-layer microcoils.

Stability mechanism on periodic ordered porous alumina by anodic oxidation

2003 ◽  
Vol 2003.52 (0) ◽  
pp. 195-196
Author(s):  
Tomohisa ISHIMOTO ◽  
Ryouta NISHIZAWA ◽  
Shigeo KOTAKE ◽  
Yasuyuki SUZUKI
Keyword(s):  
Anodic Oxidation ◽  
Porous Alumina ◽  
Ordered Porous

The influence of oxygen content in the sputtering gas on the self-synthesis of tungsten oxide nanowires on sputter-deposited tungsten films

2005 ◽  
Vol 17 (1) ◽  
pp. 217-223 ◽  
Author(s):  
Chao-Hsuing Chen ◽  
Shui-Jinn Wang ◽  
Rong-Ming Ko ◽  
Yi-Cheng Kuo ◽  
Kai-Ming Uang ◽  
...  
Keyword(s):  
Tungsten Oxide ◽  
Oxygen Content ◽  
The Self ◽  
Oxide Nanowires ◽  
Sputter Deposited

scholarly journals The Optical and Electrical Performance of CuO Synthesized by Anodic Oxidation Based on Copper Foam

Materials ◽  
2020 ◽  
Vol 13 (23) ◽  
pp. 5411
Author(s):  
Boyou Wang ◽  
Binhua Cao ◽  
Chen Wang ◽  
Yubo Zhang ◽  
Huifang Yao ◽  
...  
Keyword(s):  
Anodic Oxidation ◽  
Current Density ◽  
Oxide Semiconductor ◽  
Electrical Performance ◽  
Experimental Conditions ◽  
Electrochemical Tests ◽  
Copper Foam ◽  
Wide Range ◽  
And Performance ◽  
Cuo Nanosheets

Metal oxide semiconductor materials have a wide range of applications in the field of solar energy conversion. In this paper, CuO was prepared directly on copper foam substrate by anodic oxidation. The effects of current density and anodizing temperature on sample preparation and performance were studied. Field emission scanning electron microscopy (FESEM) and X-ray diffractometer (XRD) had been used to determine the morphology and phase structure of the sample, and its optical and electrical properties were discussed through UV-vis spectrophotometer and electrochemical tests. In addition, the influences of experimental conditions such as current density and reaction temperature on the morphology and properties of CuO were systematically discussed. The FESEM images showed that as the anodic oxidation temperature increase, the morphology of the prepared sample changed from nanowires to leaf-like CuO nanosheets. According to the results of XRD, the structure of prepared CuO was monoclinic, and the intensity of diffraction peaks gradually increased as anodizing temperature increased. We found that the optimum current density and anodizing temperature were 20 mA cm−2 and 60 °C, respectively. The results of electrochemical indicated that the CuO electrode based on copper foam (CuO/Cu foam) prepared at the optimum exhibited the highest specific capacitance (0.1039 F cm−2) when the scan rate was 2 mV s−1.

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