Ms. Emma Rossinyol Profile

Emma Rossinyol

at Univ of Barcelona

SPIE Involvement:

Author

Publications (1)

This will count as one of your downloads.

You will have access to both the presentation and article (if available).

DOWNLOAD NOW

This content is available for download via your institution's subscription. To access this item, please sign in to your personal account.

Email or Username Forgot your username?

Password Forgot your password?

Show

Keep me signed in

No SPIE account? Create an account

Proceedings Article | 28 June 2005 Paper

Nanostructured mesoporous tungsten oxide for gas sensor applications

Emma Rossinyol, Jordi Arbiol, Andreu Marsal, Francesca Peiro, Albert Cornet, Joan Ramon Morante, Leonid Solovyov, Bozhi Tian, Bo Tu, Dongyuan Zhao

Proceedings Volume 5838, (2005) https://doi.org/10.1117/12.608272

KEYWORDS: Oxides, Chromium, Sensors, Transmission electron microscopy, Crystals, Gas sensors, Silica, Particles, 3D modeling, Nanostructuring

Read Abstract +

Due to their simple implementation, low cost and good reliability for real-time control systems, semiconductor gas sensors offer good advantages with respect to other gas sensor devices. As gas adsorption is a surface effect, one of the most important parameter to tailor the sensitivity of the sensor material is to increase the surface area. For these propose, mesoporous oxides have been synthesized. Nanostructured mesoporous materials present a large and controllable pore size and high surface are. For the preparation of ordered nanostructure arrays, a hard template method has been used. This method presents some advantages when compared with a soft template method, especially in its specific topological stability, veracity, predictability and controllability. Moreover, with this hard template method we can obtain crystalline mesoporous oxides, with small particle size and high surface area. We have used SBA-15 (two-dimensional hexagonal structure) and KIT-6 (three-dimensional cubic structure) as a template for the synthesis of different crystalline mesoporous WO₃ with a particle size about 8-10 nm and high surface area. Low angle XRD spectra show a high order mesoporous structure, without rests of silica template. TEM confirms that the silica host has been completely removed; therefore, the nanowires constitute a self-supported superlattice. HRTEM studies have been focused on the detailed structural characterization of these materials. Electrical characterization of the sensor response in front of NO₂ has been performed. Some catalytic additives have been also introduced, in order to increase the sensitivity of the material.

My Library

You currently do not have any folders to save your paper to! Create a new folder below.

Folder Name

Folder Description

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks. You are receiving this notice because your organization may not have SPIE eBooks access.*

*Shibboleth/Open Athens users─please sign in to access your institution's subscriptions.

To obtain this item, you may purchase the complete book in print or electronic format on SPIE.org.

ORGANIZATIONAL
Sign in with credentials provided by your organization.

Organizational Username

Organizational Password

Show/Hide Password

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members:

Non-members: ADD TO CART

Keywords/Phrases

Search In:

Publication Years