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Title: Method of monitoring CO concentrations in hydrogen feed to a PEM fuel cell

Abstract

The CO concentration in the H{sub 2} feed stream to a PEM fuel cell stack is monitored by measuring current and/or voltage behavior patterns from a PEM-probe communicating with the reformate feed stream. Pattern recognition software may be used to compare the current and voltage patterns from the PEM-probe to current and voltage telltale outputs determined from a reference cell similar to the PEM-probe and operated under controlled conditions over a wide range of CO concentrations in the H{sub 2} fuel stream. The PEM-probe is intermittently purged of any CO build-up on the anode catalyst, e.g., by (1) flushing the anode with air, (2) short circuiting the PEM-probe, or (3) reverse biasing the PEM-probe, to keep the PEM-probe at peak performance levels.

Authors:
; ; ; ; ;
Publication Date:
Sponsoring Org.:
US Department of Energy
OSTI Identifier:
20050815
Alternate Identifier(s):
OSTI ID: 20050815
DOE Contract Number:  
AC02-90CH10435
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 16 May 2000
Country of Publication:
United States
Language:
English
Subject:
30 DIRECT ENERGY CONVERSION; PROTON EXCHANGE MEMBRANE FUEL CELLS; HYDROGEN FUEL CELLS; MONITORING; CARBON MONOXIDE; ON-LINE MEASUREMENT SYSTEMS; OPERATION

Citation Formats

Grot, S.A., Meltser, M.A., Gutowski, S., Neutzler, J.K., Borup, R.L., and Weisbrod, K. Method of monitoring CO concentrations in hydrogen feed to a PEM fuel cell. United States: N. p., 2000. Web.
Grot, S.A., Meltser, M.A., Gutowski, S., Neutzler, J.K., Borup, R.L., & Weisbrod, K. Method of monitoring CO concentrations in hydrogen feed to a PEM fuel cell. United States.
Grot, S.A., Meltser, M.A., Gutowski, S., Neutzler, J.K., Borup, R.L., and Weisbrod, K. Tue . "Method of monitoring CO concentrations in hydrogen feed to a PEM fuel cell". United States.
@article{osti_20050815,
title = {Method of monitoring CO concentrations in hydrogen feed to a PEM fuel cell},
author = {Grot, S.A. and Meltser, M.A. and Gutowski, S. and Neutzler, J.K. and Borup, R.L. and Weisbrod, K.},
abstractNote = {The CO concentration in the H{sub 2} feed stream to a PEM fuel cell stack is monitored by measuring current and/or voltage behavior patterns from a PEM-probe communicating with the reformate feed stream. Pattern recognition software may be used to compare the current and voltage patterns from the PEM-probe to current and voltage telltale outputs determined from a reference cell similar to the PEM-probe and operated under controlled conditions over a wide range of CO concentrations in the H{sub 2} fuel stream. The PEM-probe is intermittently purged of any CO build-up on the anode catalyst, e.g., by (1) flushing the anode with air, (2) short circuiting the PEM-probe, or (3) reverse biasing the PEM-probe, to keep the PEM-probe at peak performance levels.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {5}
}