Project No: NT0008022
Performer: University of Texas at El Paso


Federal Project Manager: Dunst, Richard:
Technology Manager: Maley, Susan:
Principal Investigator: Manciu, Felicia:

Award Date:  01/16/2009
Project Date:  12/15/2013

DOE Share: $249,506.00
Performer Share: $0.00
Total Award Value: $249,506.00

Performer website: University of Texas at El Paso -

Crosscutting Research - University Training and Research

Investigation of WO3-based H2S Sensor Materials for Coal Gasification Systems

Project Description

The project is to develop a new Ti-doped WO3 sensor nanomaterial for H2S detection. The objectives are to achieve improved response time, controlled microstructure for long-term stability, and narrow particle size distribution for improved sensor characteristics and performance in a WO3 material. This research will investigate H2S detection selectivity, sensitivity and stability of undoped and Ti-doped WO3. The research will investigate the surface functionalization and stabilization of WO3 by metals such as Au and Al for H2S sensors. A comprehensive suite of measurements, together with temperature-dependent electrical characterizations and performance evaluation tests, will be performed to asses their feasibility for use in coal gasification systems for H2S detection and monitoring.

Program Background and Project Benefits

This project will investigate a WO3-based H2S sensor material for coal gasification systems. It will support efforts to develop sensors for harsh conditions to assist in monitoring the operation and performance of critical components within gasification facilities. Technical improvements to overcome existing barriers to improving H2S sensors will be made. In addition, a knowledge database will be created to address future issues relevant to the NETL sensor program. Ultimately, these advancements will result in lower operating costs for gasification facilities.


Project accomplishments to date include: