An experimental system for evaluation of well-defined catalysts on nonporous electrodes in realistic DMFC environment

• This paper reports on an experimental setup wich enables us to investigate planar model catalysts in an environment closely resembling the environment found in an actual direct methanol fuel cell. The working electrodes were nano-structured catalyst particles immobilised on planar supports, reducing many of the commonly present non-catalyst related effects in conventional porous electrodes. Colloidal lithography was used for nano-structuring the samples. Nation was used as electrolyte. Results are presented for the oxidation of methanol, formaldehyde, formic acid and carbon monoxide at temperatures between 30 and 70 degrees C on Pt particles supported on glassy carbon disks.

Subject headings

TEKNIK OCH TEKNOLOGIER  -- Annan teknik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Other Engineering and Technologies (hsv//eng)

Keyword

methanol electro-oxidation

direct methanol fuel cell

DMFC

electrocatalysis

glassy carbon

solid polymer electrolyte

planar model catalysts

fuel-cell reactions

methanol oxidation

colloidal lithography

membrane interface

platinum

electrooxidation

electrocatalysts

activation

reduction

Publication and Content Type

ref (subject category)

art (subject category)