Voltammetry of Layered Black Phosphorus: Electrochemistry of Multilayer Phosphorene

Layered black phosphorus crystals were prepared by the chemical vapor transport method. It is characterized by scanning electron microscopy, energy-dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy and X-ray diffraction. Black phosphorus exhibits inherent electrochemistry in the sense that it is oxidizable similar to 560 mV (vs Ag/AgCl). This study is a first step in the utilization of black phosphorus, in modern days named as stacked phosphorene, in electrochemical applications.