GS9.6 - Characterization of a Selective, Zero Power Sensor for Distributed Sensing of H2 in Energy Applications

17th International Meeting on Chemical Sensors - IMCS 2018
2018-07-15 - 2018-07-19
Vienna, Austria
Gas Sensors 9 - Hydrogen Sensing
J. Stetter, V. Patel - KWJ Engineering Inc. and Spec-Sensors LLC, Newark (USA), W. Buttner - National Renewable Energy Laboratory, Golden (USA), H. Wright - Colorado School of Mines, Golden (USA)
332 - 333


The use of hydrogen as an energy source is increasing rapidly. There are safety concerns wherever
H2 is made, used, and transported [pipelines and tanks] for both vehicle and stationary applications.
Mobile and localized detectors are needed to meet safety codes and to enable a smooth rollout of H2
as an energy alternative. One impediment is a sensor that simultaneously has the combined features
of small size, low cost for easy deployment in large numbers, low power to simplify fixed and mobile
applications, and high performance including sensitivity, selectivity, fast response, stability and long
lifetime. A new novel printed electrocatalytic amperometric gas sensor or AGS [1] with a circuit for
monitoring H2 in air has been fabricated and evaluated for low level leak detection [0-1000 ppm H2 in
air] and safety levels [alarms at 0.5%, 2.5%, and 4% in air]. The new H2 sensor is designed for
manufacture [DFM] using scalable methods of "Printed Electronics" [PE] and is made on a template
the size of an 8 wafer to enable volume low cost manufacture by leveraging PE and semiconductor
fab infrastructure.