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Carbon monoxide sensor and method of use thereof

United States Patent

September 4, 2007
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Carbon monoxide sensors suitable for use in hydrogen feed streams and methods of use thereof are disclosed. The sensors are palladium metal/insulator/semiconductor (Pd-MIS) sensors which may possess a gate metal layer having uniform, Type 1, or non-uniform, Type 2, film morphology. Type 1 sensors display an increased sensor response in the presence of carbon monoxide while Type 2 sensors display a decreased response to carbon monoxide. The methods and sensors disclosed herein are particularly suitable for use in proton exchange membrane fuel cells (PEMFCs).
McDaniel; Anthony H. (Livermore, CA), Medlin; J. Will (Boulder, CO), Bastasz; Robert J. (Livermore, CA)
Sandia Corporation (Livermore, CA)
10/ 387,921
March 12, 2003
ACKNOWLEDGEMENT OF GOVERNMENT SUPPORT The United States Government has rights in this invention pursuant to Contract No. DE-AC04-94AL85000 between the United States Department of Energy and Sandia Corporation for the operation of Sandia National Laboratories.