Hello Mr. Doraisamy,

I found this example, I hope this could be useful to you.

“The samples were coated with a thin layer of gold. In addition, transmission electron microscopy (TEM) analysis was performed on samples microtomed at room temperature.”

Apart from that I send you another article that shows the possibility of use of PEEK membranes for Fuel Cells applications:

https://www.researchgate.net/publication/223435538_Sulfonated_PEEK-WC_membranes_for_possible_fuel_cell_applications

I also attached to you other examples of commercial membranes for fuel cells:

Acid PEM (Proton Exchange Membrane):

https://www.researchgate.net/publication/238901462_Preparation_of_PtSnC_electrocatalysts_using_citric_acid_as_reducing_agent_for_direct_ethanol_fuel_cell_DEFC

Alkaline AEM (Anion Exchange Membrane):

https://www.researchgate.net/publication/295395883_Selective_CoSe2C_cathode_catalyst_for_passive_air-breathing_alkaline_anion_exchange_membrane_m-direct_methanol_fuel_cell_AEM-mDMFC

https://www.researchgate.net/publication/259974014_Fabrication_and_evaluation_of_a_passive_alkaline_membrane_micro_direct_methanol_fuel_cell

Article Carbon-nanofibre-reinforced poly(ether ether ketone) composites

Article Sulfonated PEEK-WC membranes for possible fuel cell applications

Article Preparation of PtSn/C electrocatalysts using citric acid as ...

Article Selective CoSe2/C cathode catalyst for passive air-breathing...

Article Fabrication and evaluation of a passive alkaline membrane mi...

Thank u sir..

Dear Amrisharaj,

The preparation is quite challenging you should first find the best non-solvent  to disperse your composite (Maybe methanol or ethanol) then take few mg of your sample and disperse it (20 mL) by stirring followed by sonication. Then coat it on copper grid by drop casting technique. You should cast only one drop otherwise its difficult to observe the morphology as electrons need to pass trough your sample.