Methanol sensor operated in a passive mode
Abstract
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.
- Inventors:
-
- Los Alamos, NM
- Issue Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- OSTI Identifier:
- 874911
- Patent Number(s):
- 6488837
- Assignee:
- The Regents of the University of California (Los Alamos, NM)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- DOE Contract Number:
- W-7405-ENG-36
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- methanol; sensor; operated; passive; mode; outputs; signal; related; concentration; aqueous; solution; adjacent; membrane; electrode; assembly; mea; included; anode; cathode; current; collector; supports; flow; channel; therethrough; flowing; stream; forms; physical; barrier; control; access; configured; air; connected; measure; circuit; electrodes; provide; output; functionally; aqueous solution; output signal; current collector; anode current; membrane electrode; sensor output; passive mode; /205/204/429/
Citation Formats
Ren, Xiaoming, and Gottesfeld, Shimshon. Methanol sensor operated in a passive mode. United States: N. p., 2002.
Web.
Ren, Xiaoming, & Gottesfeld, Shimshon. Methanol sensor operated in a passive mode. United States.
Ren, Xiaoming, and Gottesfeld, Shimshon. Tue .
"Methanol sensor operated in a passive mode". United States. https://www.osti.gov/servlets/purl/874911.
@article{osti_874911,
title = {Methanol sensor operated in a passive mode},
author = {Ren, Xiaoming and Gottesfeld, Shimshon},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 01 00:00:00 EST 2002},
month = {Tue Jan 01 00:00:00 EST 2002}
}
Works referenced in this record:
A Methanol Sensor for Portable Direct Methanol Fuel Cells
journal, November 1998
- Calabrese Barton, Scott A.; Murach, Bryan L.; Fuller, Thomas F.
- Journal of The Electrochemical Society, Vol. 145, Issue 11