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US 9,540,525 B2Granted
Graphene oxide-ceramic hybrid coating layer, and method for preparing the same
AssigneesHyundai Motor Company, Korea Institute of Ceramic Engineering and Technology
InventorsKwang Il Chang, Chul Kyu Song, Dha Hae Kim, Seung Hun Hur
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Abstract
A graphene oxide-ceramic hybrid coating layer formed from a graphene oxide-ceramic hybrid sol solution that includes graphene oxide (GO) and a ceramic sol and a method of preparing the coating layer are provided. A content of graphene oxide in the graphene oxide-ceramic hybrid coating layer is about 0.002 to about 3.0 wt % based on the total weight of the graphene oxide-ceramic hybrid coating layer.
Claims11
A method for preparing a graphene oxide-ceramic hybrid coating layer comprising:
- preparing a solution that includes a graphene oxide slurry, whereby an aqueous surface environment of the graphene oxide slurry is replaced by a first non-aqueous based solvent;
- combining the solution with a second non-aqueous based solvent and a ceramic precursor to prepare a mixture;
- adding a dispersing agent and water to the mixture to prepare a graphene oxide-ceramic hybrid sol solution;
- and
- coating a substrate with the graphene oxide-ceramic hybrid sol solution.
2 more elements
Dependencies are inferred from the claim text.