Hello, for a research project, I need to composite graphene oxide with a ceramic powder and sinter it at 1300 degrees under vacuum and argon gas. Does graphene oxide disappear?
Amirhosein Poureshagh
Graphite oxide decomposes upon rapid heating at moderately high temperatures (~280–300°C) to form finely dispersed amorphous carbon, a bit like activated carbon. Wikipedia
As a result of the size effect, graphene oxide will decompose (decarboxylate) even at lower temperatures.
Graphite oxide is a compound composed of carbon, oxygen, and hydrogen atoms, while graphene oxide is a compound composed of carbon, oxygen, and hydrogen atoms that is processed to have a sheet-like structure. The main difference between the two is that the sheet-like structure of graphene oxide gives it better physical, chemical, and electrical properties than graphite oxide.
Graphene oxide should not disappear when it is sintered at 1300 degrees under vacuum and argon gas. Graphene oxide is stable up to temperatures of 2000 °C, so it should still be present after sintering. However, it may become more hydrophilic due to the loss of oxygen-containing functional groups.
You are correct (Amirhosein Poureshagh). As a result of the size effect, graphene oxide can decompose (decarboxylate) even at lower temperatures (below 1300 °C). This is due to the larger surface area of graphene oxide particles, which can increase the rate of reaction.
If you are looking for more information on graphene oxide and its decomposition at lower temperatures, you may want to consult research papers and journals that discuss this topic in detail.