I'm trying to add a Hydroxyl Group to graphene, If you have an Idea, please don't be shy.
Hello,
There are numerous ways to reach this goal, but the straightforward method is the following one:
First of all you have to prepare graphene oxide which has COOH groups on its structure, Then use thionyl chloride or oxalyl chloride to convert COOH grous to the COCl grous. In the final step, the acyl groups (COCl), can be reacted with ethanolamine or diethanol amine.
this is very helpful, I haven't worked in the lap for a long time so I got a little rusty. Anyway, thank you very much, but can you provide me with a source? A paper? I need to see this through precisely.
again thank you.
you can use the following references:
(1) The chemistry of graphene oxide, Chem. Soc. Rev., 2010, 39, 228–240.
(2) Graphene Oxide Synthesized by using Modified Hummers Approach, International Journal of Renewable Energy and Environmental Engineering, Vol. 02, No. 01, January 2014. (http://basharesearch.com/IJREEE/5020110.pdf)
(3) Chemically Functionalized Graphene and Their Applications in Electrochemical Energy Conversion and Storage, (http://cdn.intechopen.com/pdfs-wm/44108.pdf).
(4) Functionalized graphene oxide with ethylenediamine and 1,6-hexanediamine
(http://xxtcl.sxicc.ac.cn/EN/article/downloadArticleFile.do?attachType=PDF&id=8979)
(5) Preparation of Amino Functionalized Graphene Sheets and their Conductive
Properties (http://essuir.sumdu.edu.ua/retrieve/77084/Arbuzov_Graphite%20Oxide.pdf)
(6) Graphene and Graphene Oxide: Synthesis, Properties,
and Applications (https://www.me.utexas.edu/news/pdfs/Graphene_Ruoff.pdf)
A very rough - rapid method is to expose CVD graphene to Oxygen Plasma.
Oxygen plasma can tear and ech graphene after prolonged exposure, so typically few seconds (3-5 secs) of exposure can result in enough oxygen functionalization (not limited to COOH)
My experience is that 15 seconds of exposure will etch a way a graphene monolayer (1X1 cm) completely.
This method involves less chemistry, but is rapid after being optimized and carefully looking at the obtained samples in XPS.
Good Luck!
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