Efficient electrochemical reaction in hexagonal WO3 forests with a hierarchical nanostructure

Shibuya, Masachika; Miyauchi, Masahiro

doi:10.1016/j.cplett.2009.03.043

Cited by 53 publications

(29 citation statements)

References 13 publications

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“…Nanostructured WO 3 films improve the surface‐to‐volume ratio, allowing more surface area available for reactions, hence producing superior optical modulation as compared to the compact films 31, 32. Additionally, the open structure enhances species diffusion within the system, which greatly improves the chromic response time 47. The intercalation behavior of nanostructured WO 3 can be quite different from its bulk counterparts.…”

Section: Fundamental Propertiesmentioning

confidence: 99%

Nanostructured Tungsten Oxide – Properties, Synthesis, and Applications

Zheng

Strano

et al. 2011

Adv Funct Materials

1,277

911

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This section focuses on the fundamental properties of nanostructured WO x and start with its various crystal structures and the conditions for phase transitions between these structures. The structures of nonstoichiometric WO x and WO 3 hydrates Nanostructured Tungsten Oxide -Properties, Synthesis, and Applications Metal oxides are the key ingredients for the development of many advanced functional materials and smart devices. Nanostructuring has emerged as one of the best tools to unlock their full potential. Tungsten oxides (WO x ) are unique materials that have been rigorously studied for their chromism, photocatalysis, and sensing capabilities. However, they exhibit further important properties and functionalities that have received relatively little attention in the past. This Feature Article presents a general review of nanostructured WO x , their properties, methods of synthesis, and a description of how they can be used in unique ways for different applications.

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Section: Fundamental Propertiesmentioning

confidence: 99%

Nanostructured Tungsten Oxide – Properties, Synthesis, and Applications

Zheng

Strano

et al. 2011

Adv Funct Materials

1,277

911

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“…Nanotree thin films exhibited efficient electrochromism due to their large tunnels in the crystal and nano-channels between the nanotrees. [172] Metallic tungsten nanotree was formed on an Al 2 O 3 substrate by using W(CO) 6 gas by electron-beam technique. [173] Platinum metal nanotrees were prepared with assembling Pt nanoparticles onto DNA network template and reducing metal ions by photoinduced method.…”

Section: Gallery Of Relatively Rare Nanoformsmentioning

confidence: 99%

A Review on Less-common Nanostructures

Kharissova

Kharisov

García

et al. 2009

Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-

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Less-comon nanostructures (nanoforms) such as "nanodumbbells", "nanorices", "nanolines", "nanotowers", "nanoshuttles", "nanobowlings", "nanowheels", "nanofans", "nanopencils", "nanotrees", "nanoarrows", "nanonails", "nanobottles", or "nanovolcanoes", among many others, have been reviewed. A considerable part of these nanoforms corresponds to gold, zinc oxide, and several binary inorganic compounds that are widely used in electronics. Synthesis methods for obtaining less-common nanoforms include wet-chemistry and electrochemical techniques, laser ablation, ultrasonic treatment, electron and ion beam irradiation, arc discharge, lithography, CVD and related routes, among others.

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“…Such complex WO 3 − x structures have previously been synthesized by Zhou et al [11] using a thermal evaporation method, by Zhu et al [12] using a thermal oxidation procedure, by Shibuya and Miyauchi [2] using a sulfate-assisted hydrothermal reaction of tungsten metal, and finally by Baek et al [13] using a two-step evaporation process. The hierarchical WO 3 − x structures are found to exhibit promising field-emission performance [13], much faster proton diffusion than for polycrystalline WO 3 films [14] and remarkable electrochromic properties [15]. With catalysis, a significant improvement in efficiency can be achieved when catalytically active nanoparticles are supported on nanostructured materials [2][3][4][5].…”

Section: Introductionmentioning

confidence: 97%