Nafion® solution is a dispersed polymer liquid form of the same chemical as Nafion® perfluorosulfonic proton exchange membrane.
It is typically applied to the electrode layer that drastically reduces the amount of platinum catalyst needed as a catalyst by exposing a larger fraction of the platinum catalyst to the proton conductive medium. The Nafion® solutions are available in 5% and 20% polymer content with aliphatic alcohol (AL) based dispersant and in 5% and 10% with water (AQ) dispersant.
The Teflon PTFE emulsion is a hydrophobic material and is one of the keys chemical used in fuel cells.
Teflon PTFE acts as a binding agent and changes the hydrophobic properties of the gas diffusion layer. By coating porous carbon paper with the PTFE emulsion, the result prevents the paper from being saturated by liquid water and lets water vapor and reactant gas pass freely through the pores.
The PTFE emulsion can be used directly by mixing with catalysts or coating porous substrate (e.g. carbon paper or carbon cloth) to a variety of PTFE content.
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|EC -TFE||Teflon Emulsion PTFE 3859 Unit 500 ml No Hazardous Classification||$125||View|
|EC-NS-05-AL||Nafion Solution 5wt%, 1100 EW Hazmat Fee Density: 0.92 – 0.94 Unit 250ml||$732||View|
|EC-NS-05-AQ||Nafion Solution, Aqueous (Water Based) No hazardous classification Unit 250ml||$524||View|
|EC-NS-20-AL||Nafion Solution, 20wt% Hazmat Fee Unit 250ml||$1,274||View|