Final Report

Horn, Mark W. ; McDaniel, Anthony ; Schweighardt, Frank K.

Pennsylvania State University

关键词: Hydrogen Fuel Cells;    Nickel;    Commercialization;    36 Materials Science;    Chemiresistor;   

DOI  :  10.2172/811178
RP-ID  :  DOE/CH11031
RP-ID  :  FC07-00CH11031
RP-ID  :  811178

美国|英语

来源: UNT Digital Library

【 摘 要 】

In this program the teams at Penn State University (PSU), Sandia National Laboratories (SNL), DCH Technology (DCHT), and Air Products and Chemicals Inc. (APCI), have aggressively pursued engineering solutions to eliminate barriers to solid-state chemiresistor hydrogen sensor technology. The metallurgical effects of alloying palladium with nickel have been shown to prevent phase transitions in the thin films at high H2 overpressures, making the devices more suitable for IOF process conditions. We investigated the use of thin, semi-permeable membranes that protect the catalytic surface from poisoning or other undesirable surface reactions that would otherwise reduce sensitivity or operability in harsh IOF process environments. The results of this project have provided new insight into the effects of metallurgy and protective coatings on device behavior, and open new avenues for research in this field. Commercialization of this sensor technology could be easily achieved, although not yet realized. The benefits to society, once this technology is commercialized, is a dramatic cost and energy savings to the industry, which employs these sensors. In addition, the fundamental understandings gained in this program could have an impact on both cost and safety in the future hydrogen economy utilizing hydrogen fuel cells and hydrogen storage.