Boron can form various nanostructures, including nanotubes, nanowires, and nanosheets. Boron nanotubes are structurally similar to carbon nanotubes but exhibit superior thermal and chemical stability. Boron nanowires are one-dimensional structures that can be used in electronic and optoelectronic applications due to their excellent electrical properties. Boron nanosheets, on the other hand, offer high surface area and unique electronic properties, making them suitable for catalysis and energy storage applications.