Method for making membrane fuel cell electrodes by low-voltage electrophoretic deposition of carbon nanomaterial-supported catalysts
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 25, 2012
Grant Date -
Feb 3, 2011
app pub date -
Feb 15, 2008
filing date -
Feb 15, 2008
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A cathode electrophoretic deposition (EPD) suspension is provided by mixing an ionomer solution with an electrolyte. An anode EPD suspension is provided via mixing carbon nanomaterial (CNM)-supported catalyst with a solution of the same composition as that of the cathode EPD suspension. Ultrasonication and high-speed stirring are executed on the cathode and anode EPD suspensions, thus turning them into homogenous suspensions. There is provided a low-voltage EPD apparatus incorporated with a porous material to separate it into anode and cathode compartments. The anode and cathode EPD suspensions are filled in the anode and cathode compartments, respectively. An inert gas is introduced into the anode compartment for stirring the anode EPD suspension. An electrode base substrate is used as the anode of the EPD apparatus. A low-voltage direct current (DC) power supply is used to supply DC low voltage to the EPD apparatus, thus evenly coating a catalyst layer on the substrate. The catalyst layer coated on the substrate is washed with de-ionized water and dried, thus forming a membrane fuel cell (MFC) electrode.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully