Methanol sensor operated in a passive mode
- Los Alamos, NM
A sensor outputs a signal related to a concentration of methanol in an aqueous solution adjacent the sensor. A membrane electrode assembly (MEA) is included with an anode side and a cathode side. An anode current collector supports the anode side of the MEA and has a flow channel therethrough for flowing a stream of the aqueous solution and forms a physical barrier to control access of the methanol to the anode side of the MEA. A cathode current collector supports the cathode side of the MEA and is configured for air access to the cathode side of the MEA. A current sensor is connected to measure the current in a short circuit across the sensor electrodes to provide an output signal functionally related to the concentration of methanol in the aqueous solution.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM
- DOE Contract Number:
- W-7405-ENG-36
- Assignee:
- The Regents of the University of California (Los Alamos, NM)
- Patent Number(s):
- US 6488837
- OSTI ID:
- 874911
- Country of Publication:
- United States
- Language:
- English
A Methanol Sensor for Portable Direct Methanol Fuel Cells
|
journal | November 1998 |
Similar Records
Methanol-tolerant cathode catalyst composite for direct methanol fuel cells
The direct methanol fuel cell
Related Subjects
access
adjacent
air
anode
anode current
aqueous
aqueous solution
assembly
barrier
cathode
channel
circuit
collector
concentration
configured
connected
control
current
current collector
electrode
electrodes
flow
flowing
forms
functionally
included
mea
measure
membrane
membrane electrode
methanol
mode
operated
output
output signal
outputs
passive
passive mode
physical
provide
related
sensor
sensor output
signal
solution
stream
supports
therethrough