White Graphene protects against rust even at high temperatures.

Scientists from the University of Rice found that a layer of hexagonal boron nitride (h-BN) with a thickness of only a few atoms protects the substance coated with it from oxidation even at high temperatures.
One or several layers of material called “white graphene” protect nickel from rust even at temperatures up to 1100 degrees Celsius and can be produced with a shape and size suitable for industrial use.
Palickel Ajayan and Jun Lou published their research in the journal Nature Communications on a substance that is stable at temperatures up to 1,500 degrees and does not react with most chemicals.

Protection against oxidation is already a great achievement, and at the same time Rice's laboratory currently has no competitors in terms of the size of the finished product. Researchers see potential for large-area h-BN films produced by scalable vapor deposition.
“We think that this study opens up new possibilities for two-dimensional materials,” said Lou, associate professor of general engineering and materials science. “Everyone is talking about how to use such materials in electronic or photonic devices. But if our idea turns out to be implemented in large scale, then new applications will open up. ”
He also said that white graphene can be used to protect turbines, jet engines, geological prospecting equipment either under water or in other harsh environments where minimum size and weight would be a significant advantage, although wear and abrasion can be a problem and require choice optimum protective layer thickness depending on the specific application.
Also, Lou said that the almost complete invisibility makes it suitable for use in solar batteries. “In fact, it can be a very useful coating material,” he said.
Scientists have produced small white graphene films using chemical vapor deposition, which can be expanded to an industrial scale. First, a thin layer of material was grown on nickel foil - it turned out that it can withstand high temperatures in an oxygen-rich environment. Also, scientists have grown h-BN on graphene and found that h-BN sheets are easily transferred to copper and steel with similar results.
“It's amazing how thin these layers are, and what ultra-high temperatures they stand. This is a non-invasive coating with a thickness of only a few nanometers. They almost do not occupy space, ”said Ajayan.