bullet Sensors & Transducers Journal

    (ISSN 1726- 5479)


2007 e-Impact Factor

25 Top Downloaded Articles

Journal Subscription 2008

Editorial Calendar 2008

Submit an Article

Editorial Board

Current Issue

Sensors and Transducers journal's cover


Sensors & Transducers Journal 2007

2000-2002 S&T e-Digest Contents

2003 S&T e-Digest Contents

2004 S&T e-Digest Contents

2005 S&T e-Digest Contents

2006 S&T e-Digest Contents


Best Articles 2007




Vol. 97, Issue 10, October 2008, pp.55-63





Producing Gas-selective Electrochemical Microsensors by Tuning Solid Electrolyte Composition



1206 Hyde Park Dr., Richardson, TX 75080

Tel.: 972/995-2421, fax: 972-995-5910

22400 Ivy Lane, Bloomington, MN 55431

Tel.: 630/915-1962

E-mail: e-shoemaker1@ti.com, doc_vogt@hotmail.com



Received: 8 September 2008   /Accepted: 22 October 2008   /Published: 31 October 2008


Abstract: Monolithic gas sensors, developed at Argonne National Laboratory, employed cyclic voltammetry measurement techniques, YSZ solid electrolyte electrochemical cells and K-nearest neighbor (neural) chemometrics techniques to sense multiple components in a gas mixture. These voltammetry-based devices detected most hydrocarbons, displayed no saturation effects and were functional from < 1 ppm to 100 % oxygen concentrations, but were not sensitive to carbon dioxide due to the lack of reactivity within the Pt electrodes. Investigations revealed that specific CO2 sensitivity could be introduced by adding tungsten stabilized bismuth oxide (WBO) to the solid electrolyte composition while maintaining the same basic sensor geometry and electrode configuration. The YSZ/WBO sensors are functional in a range of CO2 concentrations from low ppm to 100 %.


Keywords: O2, CO2, Thick-film microsensor, Solid electrolyte, Gas-phase voltammetry, WBO


 Acrobat reader logo Click <here> or title of paper to download the full pages article (1.32 Mb)





1999 - 2008 Copyright , International Frequency Sensor Association (IFSA). All Rights Reserved.

Home - News - Links - Archives - Tools - Standardization - Patents - Marketplace - Projects - Wish List - Subscribe - Search - e-Shop - Membership

 Members Area -Sensors Portal -Training Courses - S&T Digest - For advertisers - Bookstore - Forums - Polls - Sensor Jobs - Site Map