Surface Coordination of Black Phosphorus for Robust Air and Water Stability

Abstract

A titanium sulfonate ligand is synthesized for surface coordination of black phosphorus (BP). In contrast to serious degradation observed from the bare BP, the BP after surface coordination exhibits excellent stability during dispersion in water and exposure to air for a long period of time, thereby significantly extending the lifetime and spurring broader application of BP.

Keywords: black phosphorus; degradation; oxidation; phosphorenes; stability.