# Method for making graphene by reducing carbon dioxide on gallium surface [closed]

I had an idea where you take gallium in a vacuum and while it’s under a vacuum you spread it out across a flat surface such as a glass slide. You would want to spread it while under a vacuum to minimize the oxide layer on the surface and you would need the gallium coating to be as thin as possible. Next you would direct $$\ce{CO2}$$ upon the surface of the gallium and heat it past a temperature necessary to enable the gallium to form an oxide from the $$\ce{CO2}$$. The oxygen would bond with the gallium and the remaining carbon atoms would precipitate on the gallium oxide surface and possibly make graphene.

Or if instead of directing $$\ce{CO2}$$ upon the gallium what if graphite oxide were instead placed on top and then heated? Would the oxygen atoms bond to the gallium and at the top of the spread out gallium surface leave graphene behind?

Is this plausible?

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## closed as off-topic by Mithoron, Jon Custer, Buck Thorn, Mathew Mahindaratne, Todd MinehardtSep 14 at 3:13

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• Do you have any reason to believe that (1) the gallium will coat a glass slide nicely, (2) that gallium will form an oxide (the ASM Alloy Phase Diagram site does not have a Ga-O phase diagram), or (3) preferentially form an oxide over a carbide? – Jon Custer Sep 12 at 21:50
• No, it's not. For starters, you get that it's liquid Ga there when you heat it? – Mithoron Sep 12 at 23:17
• The gallium would be in liquid form to be spread across a surface.. You would want it to be as thin as possible to prevent the gallium from moving by the added heat. Gallium when exposed to air has an oxide layer which forms from the combination with the oxygen in the air. What I am saying is to keep the gallium pooled together then spread it out while under a vacuum so it has a higher affinity to take the oxygen atoms from co2 and with increase of heat do so more fluently. This I believe all happens on the surface of the liquid gallium. – Stevan White Sep 13 at 3:41
• If this idea works it is now public domain and anyone can use it royalty free. – Stevan White Sep 13 at 3:42