I want to make a catalyst for DMFC application which i will use pristine graphene as support material. How can I functionalize the pristine graphene so I can doped my catalyst onto it?
Attachment of organic moieties to the surface of graphene via radical chemistry is a possible route. This process may affect the properties of the graphene sheet though.
You can graft benzoic acid moieties to the surfaces of graphite and CNTs via thermal degradation of azobenzoic acid. After grafting the benzoic acid to the surface it will have a negative charge at pH > 5. This will allow for binding of your catalyst.
Please refer to the following manuscript for synthetic methods:
https://www.researchgate.net/publication/236906020_Carboxylate_Modified_Porous_Graphitic_Carbon_A_New_Class_of_Hydrophilic_Interaction_Liquid_Chromatography_Phases
Article Carboxylate Modified Porous Graphitic Carbon: A New Class of...
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